Apparatus, system and method for modular battery-powered ac outlets
The modular power bank and base system addresses the limitations of existing chargers by offering integrated AC and USB/HDMI ports, ensuring flexible power supply and media hub functionality in dynamic workspaces and healthcare settings.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NEXUS VENTURES PTE LTD
- Filing Date
- 2024-12-09
- Publication Date
- 2026-06-18
AI Technical Summary
Existing portable power chargers for mobile devices face challenges with size, weight, cost, and limited AC power output, failing to meet the flexible power demands of modern workspaces and healthcare facilities, and lack integrated USB and HDMI ports for media hub functionality.
A modular system comprising a portable power bank with DC battery and accessory ports, combined with a power base containing inverter circuitry and additional ports, allowing for AC power generation and media hub capabilities, with a hot swap capability for uninterrupted power supply.
Provides a flexible and adaptable power solution with integrated USB and HDMI ports, enabling seamless charging and data transfer across various locations without the need for fixed wiring, supporting both mobile devices and facility equipment.
Smart Images

Figure CN2024137746_18062026_PF_FP_ABST
Abstract
Description
Apparatus, System and Method for Modular Battery-powered AC OutletsBACKGROUND OF INVENTION1. Field of Invention
[0001] This invention relates generally to apparatus, systems and methods to provide modular, battery-powered AC outlets. More specifically, at least one embodiment, relates to an apparatus, system and method including distributed power conversion modules to provide an AC output from DC power received from a battery pack. 2. Discussion of Related Art
[0002] Today's workplace is dynamic at least in part because it is not restricted to hosting employees in specific brick and mortar location (s) . Instead, the work environment is fluid with individuals operating remote from offices in a wide variety of geographic locations. However, any workplace must support the use of electronic devices on which the bulk of work is completed. For example, mobile electronic devices such as smart phones, tablets and laptop computers are used to connect and share information among individuals via various mobile applications, phone calls, video conferences and email. Because of the variability of work locations, this dynamic results in the use of portable power chargers to allow an extended operation of the electronic devices regardless of the location of the user. That is, today's mobile employees are no longer tethered to work locations that include convenient outlets for charging and operating their electronic devices.
[0003] Laptop computers which are powered by AC power (for example, at: 120V, 60 Hz in the U. S. ; 230, 50Hz in Europe; and 100V, 50 or 60 Hz in Japan) remain a primary tool for today's mobile workers. Consequently, significant advances have been made to allow DC to AC power inverter circuitry to be included in today's portable power chargers. While this allows these handheld chargers to deliver AC power, the approach also includes some drawbacks. For example, the addition of inverter circuitry adds to the size, weight and cost of any power charger that includes such circuitry. None of these factors is inconsiderable for users. Consider that size and weight are important to mobile users who may travel between multiple work locations each day.
[0004] In addition, current office locations often no longer operate with pre-assigned spaces. Instead, they are flexible spaces set up to adapt to a widely varying number of individuals working in the space each day. This can place a greater demand on resource availability because these arrangements typically rely on a greater sharing of portable resources within an office space. For example, mobile workstations, large screen displays, portable lighting, and the other workplace items requiring AC power can be moved throughout the space to suit the differing needs among users each day. The flexibility and adaptability of these workspaces requires that AC power sources be distributed in an adaptable manner. That is, the fixed wiring historically employed in office spaces does not meet the needs of the modern workspace. Further, the AC demands at workstations in these locations can be substantial enough that they exceed the practical limits of portable power chargers that include integral AC. So, while some of today's portable power chargers include an AC output and accessory ports (such as USBs) they place a burden of size, weight and cost on the user and still may not meet the AC requirements of workstations that include AC accessories.
[0005] Various additional approaches are employed in the design of portable power chargers today. Some of these may include USB accessory ports but do not provide any form of AC output. Others include a battery-only portable power charger without any accessory ports. While the power charger can be plugged into a power module that includes an inverter to provide an AC output, the portable power charger lacks any form of USB outlet or other accessory port. This is a substantial limit on functionality that makes it unsuited to the typical mobile users who may work outside of a brick-and-mortar location at various times during the workday.
[0006] Another approach includes a portable charger that includes a battery and USB accessory ports where the portable charger can be plugged into a base station that includes inverter circuitry and an AC output in the form of a receptacle. However, this approach does not provide any other ports in the base station, for example, the base station lacks any USB ports. Further, the base station is large and must be transported on a cart within the workplace. These constraints significantly reduce the flexibility of this approach. For example, a base station is unable to charge a mobile electronic device via USB even with a portable charger plugged into the base station.SUMMARY OF INVENTION
[0007] Therefore there is a need for a system that provides a portable power bank that includes a DC battery and accessory ports in combination with a power base including both inverter circuitry and additional accessory ports. In these embodiments, the power base is configured to receive the portable power bank to generate AC power delivered to one or more conventional AC receptacles included in the power bank. The accessory ports provided in the power base can include multiple USB ports. In further approaches, the accessory ports provided in the power base include an HDMI port to output high-definition digital video that is received at a port included in the power base, for example received at a USB port included in the power base.
[0008] Various of these embodiments provide the power base in a small form factor configured to secure in a convenient location at a workstation. Here, the power base in combination with the power bank providing the power source delivers greater functionality than prior approaches because the system includes all the ports and forms of power required by users. That is, while the power base is separate from the battery included in the power bank a user need only connect the power bank to the power base and then connect the devices to the receptacle and ports included in the power base. This can greatly simplify the connections for the user and provide a much cleaner workspace that eliminates the clutter of wiring that is often found at today's workstations.
[0009] Further, although described with reference to office use, embodiments illustrated and described herein can be advantageously employed in hospitals and other healthcare facilities, for example, at medical workstations. That is, a power base including an AC outlet and accessory ports can be located at a movable table, workstation, video screen and / or lighting array in a healthcare facility. When this item of healthcare mobile facility-equipment is not in use, the power base remains empty but available. Power stations are located at convenient locations in the healthcare facility where they are used to maintain a charge on power banks. The power banks are provided in a handheld form factor and can be employed by healthcare staff to be carried across the facility and connect to user's mobile electronic devices for charging and data communication. They are placed back in the power station for recharging and use by others when they are not otherwise needed by a particular user. When healthcare staff accesses one of the items of healthcare mobile facility-equipment for use, they retrieve a power bank from the power station and connect the power bank to the power base located at the selected item of healthcare mobile facility-equipment. Here, they provide AC power and accessory ports with AC ports providing a location to plug-in computers, monitors and lighting while the accessory ports are available to power portable electronic devices such as smartphones and tablet computers. A significant advantage of this approach is that it provides complete freedom of movement of an item of healthcare mobile facility-equipment across a medical office, treatment facility or larger healthcare facility campus.
[0010] In some embodiments, each power base is designed to receive a single power bank. According to other embodiments, each power base is designed to receive two power banks. In each of these embodiments, a wired connection between the power bank and the circuitry included in the power base is completed when a power bank is received by the power base. According to some embodiments in which the power base can receive multiple power banks, the system includes a “hot swap” capability. That is, a first power bank that has a low charge can be replaced by a second power bank that is fully charged while the AC power outlet and accessory outlets are drawing power without any interruption in the power being supplied to the AC-powered equipment or DC powered equipped connected to the AC power outlet and the accessory outlet (s) , respectively.
[0011] According to one aspect, a system includes a power bank with a form factor that provides an overall size, an overall shape and an overall weight that permits the power bank to be held in a single hand, and a power base. In some embodiments, the power bank includes a power bank housing configured to be held in a single hand, a rechargeable battery located in the power bank housing, and a USB-C port accessible from an exterior of the power bank housing and configured for a bi-directional transfer of data and power with an external electronic system. According to one embodiment, the USB-C port is suitable for providing charging power from the rechargeable battery to the external electronic system via a temporary wired connection between the USB-C port and the external electronic system. In some embodiments, the power base includes a power base housing configured to receive at least one power bank, and circuitry housed within the power base housing. In various embodiments, the circuitry includes a DC input, an AC output, at least one DC output, an AC power outlet coupled to the AC output, and a power conversion circuit coupled to the AC output, each of the AC power outlet and the at least one DC output accessible from an exterior of the power base housing. In these embodiments, the rechargeable battery included in the at least one power bank is coupled to the DC input to provide DC power to the power conversion circuit when the at least one power bank is received by the power base, the power conversion circuit configured to convert DC power received at the DC input to AC power delivered to the AC power outlet. In some embodiments, the at least one DC output includes a USB port configured to provide charging power from the rechargeable battery to an external electronic system via the power base.
[0012] According to another aspect, a method is provided for a delivery of single phase AC power with a modular power base that includes a plurality of USB ports and inverter circuitry coupled to an AC power outlet. In some embodiments, the method includes providing a power bank with a form factor that provides an overall size, an overall shape and an overall weight that permits the power bank to be held in a single hand. The power bank includes: a power bank housing configured to be held in the single hand, a rechargeable battery located in the power bank housing, a USB-C port accessible from an exterior of the power bank housing and configured for a bi-directional transfer of data and power with an external electronic system, the USB-C port suitable for providing charging power from the rechargeable battery to the external electronic system via a temporary wired connection between the USB-C port and the external electronic system. The method further includes providing a power base including a housing configured to receive at least one power bank, and power conversion circuitry housed within the power base housing, the power conversion circuitry configured to convert DC power received from the rechargeable battery to AC power delivered to the AC power outlet, the power base housing is provided in a form factor that provides an overall size, an overall shape and an overall weight that permits the power base to be held in a single hand, the plurality of USB ports configured to provide charging power from the rechargeable battery to the external electronic system via the power base.
[0013] As used herein, the term “facility equipment” means equipment that remains in a host facility, a brick-and-mortar location. One of ordinary skill in the art based on the disclosure provided herein will recognize that facility equipment can include portable equipment and stationary equipment, and further that facility equipment can include equipment that requires a source of electrical power and equipment that does not require electricity. For example, a rolling desktop is a piece of facility equipment as is a fixed-location workstation that includes integral lighting that requires a source of AC power for operation. Examples of moveable facility equipment that requires electricity include AV carts, rolling workstations with integral lighting and / or monitor (s) , and movable lighting as just a few examples. One of ordinary skill in the art based on the disclosure provided herein will also recognize, that personal electronic devices such as smart phones and tablet computers are not facility equipment.
[0014] As used herein, the term “wired connection” means an electrical connection that is made between a first hardware element and a second hardware element with a direct physical connection between conductors included in the first hardware element and conductors included in the second hardware element. One of ordinary skill in the art based on the disclosure provided herein will recognize that a USB connection completed between a first electronic device and a second electronic device provides a wired connection between the first electronic device and the second electronic device. One of ordinary skill in the art based on the disclosure provided herein will also recognize that a wireless inductive coupling does not provide a wired connection between the two hardware elements that are inductively coupled, wirelessly.BRIEF DESCRIPTION OF DRAWINGS
[0015] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures is represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. In the drawings:
[0016] FIG. 1 illustrates a system level block diagram of a power bank in accordance with one embodiment;
[0017] FIG. 2 illustrates a system level block diagram of a power base in accordance with one embodiment;
[0018] FIG. 3 illustrates a perspective view of a power station in accordance with one embodiment;
[0019] FIG. 4 illustrates a system including a power bank and a power base in accordance with one embodiment;
[0020] FIG. 5 illustrates a system including a power base configured to receive multiple power banks in accordance with one embodiment;
[0021] FIG. 6 illustrates a system including dual-receptacle power base in accordance with one embodiment;
[0022] FIGS. 7A-7C illustrate views of a power bank and a power base in accordance with one embodiment;
[0023] FIG. 8 illustrates systems including power bases configured for workplace integration in accordance with various embodiments;
[0024] FIG. 9 illustrates an office workstation including a system in accordance with one embodiment;
[0025] FIG. 10 illustrates facility equipment including a system in accordance with one embodiment;
[0026] FIG. 11 illustrates an item of healthcare mobile facility-equipment including a system in accordance with one embodiment; and
[0027] FIG. 12 illustrates a network operating environment for operation of systems that include combinations of power banks and power bases deployed together in accordance with one embodiment.DETAILED DESCRIPTION
[0028] This invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including, ” “comprising, ” or “having, ” “containing” , “involving” , and variations thereof herein, is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.
[0029] Referring to FIG. 1, a system level block diagram of a power bank 102 is illustrated in accordance with one embodiment. According to various embodiments, the power bank 102 includes a battery 105, a controller 106 (for example, a microcontroller or other processor) and a memory 108. In general, the power bank 102 operates as a combination charging source for electronic devices and a media hub. According to these embodiments, the power bank 102 includes a variety of ports including some that support media hub functionality. According to the illustrated embodiment, the power bank 102 includes a bi-directional USB port 112, an HDMI port 114, a plurality of additional USB-C ports 120, and a user interface 124. Depending on the embodiment, the power bank 102 optionally includes either or both of an inductive charger 126 and a wireless communication system 128, shown in phantom in FIG. 1.
[0030] In further embodiments, additional elements can optionally be included in the power bank 102 to provide added functionality. As illustrated in FIG. 1, these optional elements include a memory card reader 116, a USB-A port 121, and a DC port 122.
[0031] The power bank 102 includes one or more communication buses to connect the various components included in the power bank 102 to the controller 106, the memory 108 and / or one another as required by the application. The communication buses can be used for the communication of instructions / commands and data between the illustrated components and between the illustrated components and other components included in the device depending on the embodiment.
[0032] The power bank 102 includes one or more power buses to connect the different charging ports (for example, the USB ports 112, 120, 121 and the DC port 122) to the battery 105. As described herein, these can include separate power buses that supply charging output power at different voltages and / or different maximum wattages. Depending on the embodiment, one or more of these ports can also be employed to provide charging power to the battery 105 from an external source of power. In addition, in embodiments that include the inductive charger 126, the inductive charger is connected to the battery 105.
[0033] According to the illustrated embodiment, the power bank 102 provides DC power to the different charging ports. Unlike some devices, the power bank 102 does not include an inverter employed to convert DC power provided from the battery 105 to AC output power. As described herein, the systems in which the power bank 102 is employed instead advantageously include power bases with an inverter to supply AC power to a conventional AC outlet included in the power base. These power banks can be distributed in a facility where they are available for use. These power banks are not self-powered, instead they are used by connecting the power bank 102 to the power base to provide a DC power source that supplies DC power to the inverter included in the power base.
[0034] Depending on the embodiment, the controller 106 can be a standalone component (for example, a microprocessor) or included in a microcontroller. In various embodiments, the controller 106 and the memory 108 are each included in a microcontroller where, for example, the memory 106 can include either or both of RAM and ROM. In a further embodiment, the memory 108 also includes memory external to microcontroller. In other embodiments, the controller 106 can be included in a microprocessor.
[0035] The memory 108 is configured to store software instructions in accordance with various embodiments. In one embodiment, the memory 108 is included in the controller 106. In another embodiment, the memory 108 includes both memory internal to the controller 106 and memory external to the controller 106. In various embodiments, the memory 108 can include non-volatile memory, for example, EEPROM.
[0036] Depending on the embodiment, the battery 105 can include one or more batteries, for example, rechargeable lithium batteries. In various embodiments, the battery 105 and other elements included in power bank 102 are located in a sealed housing. According to one embodiment, the battery 105 is removable from the power bank 102, for example, to allow a freshly charged battery to be installed in place of an existing battery housed in the power bank 102. According to these embodiments, the battery 105 is included in a removable battery pack.
[0037] According to some embodiments, the battery 105 is sized to deliver sufficient power to charge any devices employed by end users while also having sufficient power to supply any of the equipment typically found at a facility or other location, for example, an office or conference center, that is, to supply AC power to various forms of facility equipment. The end user devices can include conventional portable electronic devices such as smart phones, tablet computers and laptops, and cameras typically charged by a portable power bank. The facility equipment can include equipment such as TVs, large monitors, lighting and sound systems that are available for use at the location. The battery 105 is advantageously sized to meet the power requirements of all these devices while also being suitable for inclusion in a power bank 102 that is in a portable, hand-held form factor. According to one embodiment, the battery 105 has a power storage capacity of between 275-300 Watt-hours and a maximum output of 230-250 Watts. Applicant finds that the battery 105 including these ratings does deliver sufficient power for use with the above-described equipment, while also having a small enough form factor to be included in a power bank that weighs less than five pounds. In each of the embodiments described herein, dimensions in the form of a length, a width and a height, respectively, of the housing of the power bank 102 enclosing the system elements illustrated in FIG. 1 each are less than ten inches. In one embodiment, the battery 105 is rated at 288 Watt-hours with a 250 Watt max output.
[0038] In some embodiments, the bi-directional USB port 112 includes a USB-C port that is rated to deliver 100W of charging power or greater when charging an external electronic device. According to one embodiment, the USB port 112 is rated to deliver a maximum of 140W of charging power. In further embodiments, the USB port 112 is also rated to receive up to a maximum of 100W of power from the external source of power to recharge the battery 105. According to some of these embodiments, the USB 112 is a USB-C port including USB-Power Delivery (PD) technology for fast charging. In a further embodiment, the USB port 112 includes a capacity of 240 Watts of power. According to embodiments, the USB port 112 can supply power at any of the following nominal voltage levels: 20V, 15V, 9V and 5V.
[0039] In various embodiments, the USB port 112 is configured for a bi-directional transfer of both power and data. For example, any of the embodiments described in the immediately preceding paragraph can include bi-directional data transfer capabilities. For example, because a USB cable includes separate conductors for power and data, respectively, the USB port 112 can be employed for the simultaneous transfer of power and data between the power bank 102 and an external electronic device connected to the USB port 112. As is described in greater detail below the data transfer capabilities can include both conventional “USB data” and other “non-USB data. ” According to some embodiments, the USB port 112 includes an alternate mode for a communication of high-definition digital video and multi-channel digital audio. In one embodiment, the USB port 112 includes a USB-C port with an alternate mode for a communication of high-definition digital video and multi-channel digital audio. In these embodiments, a connected external electronic device such as a laptop can operate as either a host to provide charging power to the power bank or as an external electronic device to receive power from the power bank all via the USB port 112.
[0040] According to these embodiments, the controller 106 obtains the external device information of each external device that is connected to the USB ports 112, 120. In operation, the controller 106 controls operation of the power bank to transfer data between external devices connected to the USB ports 112, 120 while also charging the devices. For example, the controller 106 can control the power bank 102 to transmit data to an external device connected to the USB port 112 with the data first being received from an external device connected to the USB ports 120. Where a connected external device requires charging, the control module 106 can control the power bank 102 to charge and transmit data to an external device via the USB port 112.
[0041] According to some embodiments, the power bank 102 can include a plurality of bi-directional USB-C charging ports that also include data transfer capabilities. The power bank 102 can also include a plurality of additional USB ports depending on the embodiment. According to the illustrated embodiment, the plurality of additional USB ports 120 includes each of USB1 and USB2 that are included in the power bank 102. Depending on the embodiment, these ports can have dual charging and data transmission capabilities or be limited to charging only. According to these later embodiments, the plurality of USB ports 120 are configured solely for charging external electronic devices. In one embodiment, the power bank 102 includes a total of four USB-C ports including at least one bi-directional USB port among the USB port 112 and the additional USB ports 120 where two of the USB ports are each rated for a 100 Watt output and two of the USB ports are each rated for a 45 Watt output. According to this embodiment, at least one of the two 100 Watt-rated USB ports is rated for a 100W input.
[0042] Applicant has recognized that the integration of media hub functionality provided with the inclusion of an HDMI port in the power bank 102 is a substantial previously unrecognized benefit for end users. For example, various embodiments allow the use of the HDMI port 114 to output high-definition digital video that is received at a port included in the power bank, for example received by the USB port 112. For example, a computer connected to the USB port 112 configured as a bi-directional USB-C port can directly communicate, via the power bank 102, high-definition digital video and multi-channel digital audio to a display connected to the HDMI port 114 while the computer is simultaneously being charged from the power bank 102 via the USB-C port. Another available option with these connections is to charge the battery 105 included in the power bank 102 via the USB-C connection simultaneously with the communication of high-definition digital video and multi-channel digital audio from the computer to the display. According to one embodiment, the HDMI port 114 is rated for data communication at 4K / 60HZ. According to another embodiment, the HDMI port 114 is rated for data communication at 4K / 30HZ.
[0043] In addition, various embodiments include the memory card reader 116. The memory card reader is provided with a slot that is externally accessible at an exterior surface of the power bank 102. The memory card reader receives a memory card for a transfer of data to / from the card. For example, a data transfer between the memory card and an electronic device connected to a port (for example, the USB port 112) included in the power bank 102. Depending on the embodiment, the memory card reader can be configured to receive at least one of a variety of memory cards, for example, an SD card or a microSD card. Further, the memory card can employ any of the available memory card standards such as SD, SDHC, SDXC, SDUC and microSD, microSDHC, microSDXC, and microSD. According to one embodiment, the memory card reader 116 operates the USB 3.0 standard with data transfer of 100MB / s.
[0044] Applicant has recognized that the integration of media hub functionality provided with the inclusion of a memory card reader in the power bank 102 is a substantial previously unrecognized benefit for end users. For example, memory cards are often used by action cameras, DSLR cameras and drones to store photos and videos captured by these devices. These same end-user devices also require recharging of their internal rechargeable batteries. The card reader 116 gives a user the ability to connect a computer to the USB port 112, the end-user device to another port for recharging. The memory card of the end-user device is removed from the end user-device and inserted in the memory card reader 116. In this configuration, the photos and videos stored on the memory card can be directly transferred to the computer while the end-user device (action cameras, DSLR cameras and drones) is simultaneously charged by the power bank 102. In addition, the computer can also be charged simultaneously via the USB port 112, if needed.
[0045] Depending on the embodiment, the power bank 102 can include any of a variety of USB ports to support charging of and / or data communication with peripheral devices. While a variety of legacy USB connector formats can be included, the illustrated embodiment includes the USB-A port 121 because USB-A is the most frequently utilized legacy format. The USB-A port 121 has dual charging and data transmission capabilities. According to other embodiments, the USB-A port is configured solely for charging external electronic devices. In any of the preceding embodiments, the USB-A port 121 can operate with the quick charge 3.0 (QC3.0) standard to deliver better charging performance. These embodiments can include a built-in smart charging integrated circuit that auto detects a connection to an external electronic device and charges the device at an optimal charging rate.
[0046] According to some embodiments, the power bank 102 is a pass-through device for data. That is, data that is received at the USB port 112 or another port, for example, the HDMI port 114 or the memory card reader 116 (if included) is passed directly to another one of the ports for output to a connected peripheral. According to another embodiment, all or a portion of the data that is received by the power bank 102 at a first port is temporarily stored in the memory 108 during the process of transferring data to a peripheral connected to a second port.
[0047] In embodiments that include the DC port 122, the port 122 is a bidirectional port suitable for connection to an external electronic device to supply charging power from the battery 105 in the power bank 102 to the electronic device while also being suitable for connection to an external source of DC power for a supply of charging power from the external source of power to the power bank 102 to recharge the battery 105. According to one embodiment, the DC port 122 is configured as a female connection for a conventional barrel jack. In various embodiments, an output of the DC port is adjustable using the user interface 124. These features can be employed by a user to adjust the voltage level to control a rate of charging of the connected electronic device.
[0048] The user interface 124 can vary depending on the embodiment. According to one embodiment, the user interface 124 includes a display (for example, an OLED) to provide information concerning the operational status of the power bank 102. The user interface 124 can also include one or more push buttons or other form of selector that is employed to navigate within the display. According to one embodiment, the user interface provides information concerning a temperature of the battery 105, the current power draw on the battery 105, and the amount of power remaining available from the battery 105. In some embodiments, the user interface includes a user configurable menu. This allows the user to establish the navigation through the features available via the display. In some embodiments, the output voltage of one or more of the charging ports is adjustable via the user interface 124. Where the power bank 102 includes a wireless communication system 128, the user interface 124 can also be employed to monitor a status of wireless communication (i.e., whether the wireless communication system 128 is successfully paired with a corresponding portable electronic device) .
[0049] According to one embodiment, the optional wireless communication system 128 provides for local wireless communication via BLUETOOTH communication and / or long-distance communication, for example, via cellular and / or satellite communication networks. According to one embodiment, the communication system 128 provides BLUETOOTH communication suitable for transmission of information between the power bank 102 and a portable electronic device (for example, a mobile phone, tablet, etc. ) located proximate to the power bank.
[0050] Referring to FIG. 2, a system level block diagram of a power base 230 is illustrated in accordance with some embodiments. According to various embodiments, the power base 230 includes a first power bank receptacle 232, an inverter 234, an AC power outlet 235, a controller 236, a memory 238 and USB ports 240. Optionally and depending on the embodiment, the power base 230 can include one or more of a second power bank receptacle 242, a bi-directional USB port 244 and an HDMI port 246 each illustrated in phantom in FIG. 2.
[0051] In general, some embodiments, upon receipt of a power bank 102 in the receptacle 232, the power base 230 operate as a combination AC power source and source of DC power for charging electronic devices. The combined system formed by the portable power bank 102 and the power base 230 provides a robust / dynamic source of operating and / or charging power for AC and DC powered portable electronic devices, and AC operating power for facility equipment. That is, both the AC power and the DC power delivered by the power base 230 can be used for both charging and powering the connected equipment and devices. Advantageously, a strategic distribution of power bases 230 at a facility provides reliable AC power while eliminating the need to install wiring for AC power circuits throughout the facility.
[0052] As is illustrated and described herein, the power bank receptacles 232, 242 include a physical location for the power base 230 to receive a power bank. A power base 230 that includes a single power base receptacle (for example, only the first power bank receptacle 232) is configured to receive one power base at a time. A power base 230 that includes two power bank receptacles (for example, both the first power bank receptacle 232 and the second power bank receptacle 242) is configured to receive two power bases at once. Each power bank receptacle 232, 242 includes an electrical connector suitable to couple with a corresponding electrical connector included in a power bank. A wired connection between the power base 230 and the power bank (s) 102 is completed when they are received in the corresponding power bank receptacle.
[0053] The inverter circuitry is included in the power base 230 to convert DC power received from a power bank 102 to AC power. The inverter circuitry can include electronic components that operate to create an AC wave waveform from the DC power that is received. Operation of the electronic switches (for example, transistors) and other elements included in the inverter circuitry is controlled by the controller 236.
[0054] Depending on the embodiment, the controller 236 can be a standalone component (for example, a microprocessor) or included in a microcontroller. In various embodiments, the controller 236 and the memory 238 are included in a microcontroller. According to another embodiment, the controller 236 is included in the microcontroller along with memory 238 including either or both of RAM and ROM. In a further embodiment, the memory 238 also includes memory external to microcontroller. In other embodiments, the processor can be included in a microprocessor.
[0055] The memory 238 is configured to store software instructions in accordance with various embodiments. In one embodiment, the memory 238 is included in the controller 236. In another embodiment, the memory 108 includes both memory internal to the controller 236 and memory external to the controller 236. In various embodiments, the memory 238 can include non-volatile memory, for example, EEPROM. The memory 238 can store the programs that when executed by the controller 236 operate the circuitry included in the power base 230 to provide DC charging output to the USB ports 240 and AC power to the AC power outlet 235. Additional operations can be performed when the programs are executed by the controller 236. For example, the power level of the power bank (s) 102 received by the power base 230 can be monitored.
[0056] According to the illustrated embodiment, the power base 230 includes each of the two USB ports, USB1 and USB2, in the USB ports 240. The quantity of USB ports 240 included in the power base 230 can be increased in various embodiments. Depending on the embodiment, these ports can have dual charging and data transmission capabilities, or be limited to charging only. According to these later embodiments, the plurality of USB ports 240 are configured solely for charging external electronic devices. In alternate embodiments, the power base 230 includes at least one bi-directional USB port among the USB ports 240. In these embodiments, the bi-directional USB port is configured for a bi-directional transfer of both power and data. In one embodiment, all the USB ports 240 are USB-C ports, while in another embodiment other types of USB ports are provided either alone or in combination with USB-C ports. The power rating of the USB ports 240 can vary depending on the embodiment. For example, the USB ports 240 can include 100 Watt-rated USB ports and / or USB ports having a lower power rating such as 45 Watts or 60 Watts as two examples.
[0057] As described above with reference to the power bank 102, Applicant has recognized that the integration of media hub functionality provided with the inclusion of an HDMI port in small form factor power systems provides a substantial previously unrecognized benefit for end users. For example, some embodiments allow the use of the HDMI port 246 included in the power base 230. This can allow the power base 230 to output high-definition digital video that is received at a port included in the power base 230, for example received by a USB port 240. For example, this can allow a high-definition digital video and multi-channel digital audio to be transmitted from a device connected to one of the USB ports 240 to a display connected to the HDMI port 246 while the computer is simultaneously being charged with power from the power bank 102 received in the power receptacle 232 via a USB port included in the power base 230. According to one embodiment, the HDMI port 114 is rated for data communication at 4K / 60HZ. According to another embodiment, the HDMI port 114 is rated for data communication at 4K / 30HZ. In each of the embodiments described herein, dimensions in the form of a length, a width and a height, respectively, of the housing of the power base 230 enclosing the system elements illustrated in FIG. 2 each are no greater than twelve inches.
[0058] Systems including the power banks 102 and power bases 230 are effectively employed in groups orr “fleets” of power banks 102 that can be deployed in combination with power bases 230 that are distributed at various locations within a facility. In many applications, the power bases 230 can be included in portable equipment located in the facility. As some examples, the power base 230 can be affixed to: a portable workstation in a shared office; a mobile stand or cart for a large display or monitor at a conference center; and a medical cart at a health care facility. The power bases 230 can also be located at fixed locations within these same facilities, for example, at stationary workstations or desks in an office; at tables in a conference center; and at fixed workstation locations in a healthcare facility. These systems benefit with the use of one or more charging locations in the facility where multiple power banks 102 can simultaneously be connected to charging station to recharge their internal batteries 105.
[0059] Referring now to FIG. 3, a system 300 is illustrated including a plurality of power banks 303 and a power station 350. The power station 350 includes a housing 352 and a plurality of slots, for example, the slot 354. A single power bank 302 is shown adjacent to the power station 350 after removal from the slot 354. In FIG. 3, each of the slots is shown in receipt of a power bank 302 except for the slot 354. The slot 354 is representative of the plurality of slots included in the power station 354, when empty. Each slot is configured to receive the power bank 302 or any one of the plurality of power banks 303 (or others that do not appear in the figure) . When a power bank is received within the slot an electrical connection is completed between the power conversion circuitry included in the power station and the circuitry included in the power bank. That is, an electrical connector included in the power station 350 couples to an electrical connector included in an end face of the power bank. In the illustrated embodiment, each slot defines a generally square shaped opening that corresponds to the shape of the power bank 302 when viewed in profile from either end.
[0060] The power station 350 includes an electrical connection (for example, a cord and plug) such that it can be plugged into a wall outlet at the facility where the power bank-power base systems are deployed. The power station 350 includes power conversion circuit that is employed to convert power received by the power station 350, for example, from 120VAC to the DC voltages employed to charge the plurality of power banks 303. In some embodiments, the power station 350 has a capacity to convert the AC input power to at least 60 Watts of DC output power that is used to charge each of the plurality of power banks 303 that are plugged into a slot. According to the illustrated embodiment, the power station 350 includes five slots to permit a re-charging of up to five power banks, together.
[0061] The power station 350 also includes an electronic system including a processor and memory. The memory is configured to store software instructions in accordance with various embodiments. The processor executes the software instructions to control operation of the power station for charging and monitoring the condition of the plurality of power banks 303. According to these embodiments the electronic system includes power management circuitry that operates to monitor the power that is supplied to the individual power banks and manage operation of the power station 350 to adjust the charging voltage and current to optimize the speed of the charge and the health of the plurality of power banks 303. In other embodiments, power received from a DC power source (for example, a solar panel) is managed and converted to a different DC output employed to charge the power banks 303.
[0062] In various embodiments, the processor included in the power station 350 controls operation of a smart power station 350 device that includes the power bank monitoring and power management operations with communication functionality to provide a remote fleet manager with data to assist in remotely tracking usage, monitoring a condition of the individual power banks 102, 302, 303 and controlling access to the power banks in various embodiments. According to these embodiments, an electronic system included in the power station 350 includes a wireless communication system. Depending on the embodiment, the wireless communication system includes a system for local wireless communication via BLUETOOTH communication and / or long-distance communication, for example, via cellular and / or satellite communication networks.
[0063] Referring now to FIG. 4, a power system 400 including a power bank 402 and a power base 430 is illustrated in accordance with one embodiment. The power base 430 includes a housing 460 including a body 462 and a receptacle 432. According to the illustrated embodiment, an AC power outlet 435 and USB ports 440 and are also included in the body 462. The power base 430 included in the power system 400 includes a single receptacle 432 and is configured to receive a single power bank. According to the illustrated embodiment, the receptacle 432 extends at a right angle to the body 462. This provides the housing 460 with an overall L-shape when viewed in profile.
[0064] As described above, the USB ports 440 can include USB-C ports that are employed to provide a charging connection for external electronic devices. Further, these USB ports 440 can be included either alone or in combination with one or more ports designed to provide different types of connections. For example, type USB-A ports can be included in combination with USB-C ports. Although not illustrated in FIG. 4, others of the optional connections can be provided in the power base 430 including one or more bi-directional USB ports and an HDMI port as two examples.
[0065] FIG. 4 illustrates a user interface 424 and a plurality of additional USB ports 420 included in the power bank 402. In this embodiment, the user interface 424 is in a face located at a first end of the power bank 402. The plurality of additional USB ports 420 are located adjacent the first end. A second end of the power bank 402 opposite the first end is shown inserted within the receptacle 432.
[0066] In operation, the second end of the power bank 402 is received within the receptacle 432 to complete an electrical connection between circuitry included in the power bank 402 and circuitry included in power base 430. These connections include a connection of the battery 105 included in the power bank 402 to an input to the inverter circuitry 234 included in the power base 430. This also connects the battery 105 included in the power bank 402 to the inputs of the USB ports 440 in the power base 430. In each case, the power supplied to the outlet 435 and the ports 440, respectively, is controlled by operation of the circuitry included in the power base 430. For example, operation of the circuitry included in the power base 430 can selectively complete connections that activate the AC output provided to the AC power outlet 435 and / or the DC output provided to the USB ports 440.
[0067] In addition, Applicant has also realized the advantages of a small form factor power base adapted to receive multiple power banks where both DC and AC output power can be supplied from any of the power bases when a power bank is temporarily connected to the power base. That is, power interruptions are avoided when the first of two batteries is depleted because a second battery is available. This is especially important with AC powered facility equipment because such equipment (for example, lighting, TVs or other displays) generally is not equipped with any power storage. Consequently, operation of this facility equipment is interrupted and the equipment shuts down when a power outage occurs. This contrasts with electronic devices such as smart phones, tablet computers and laptop computers which do include an internal battery.
[0068] Referring now to FIG. 5, a power system 500 includes a power base 530 configured to receive two power banks including a first power bank 502A and a second power bank 502B, at the same time. According to this embodiment, the power base 530 includes a housing 564 with a body 562, a first receptacle 532 and a second receptacle 542. According to the illustrated embodiment, an AC power outlet 535 and USB ports 540 and are included in the body 562. According to the illustrated embodiment, the first receptacle 532 extends at a right angle from a first side of the body 562 and the second receptacle 542 extends at a right angle from a second side of the body 562 where the second side is opposite the first side. This provides the housing 564 with an overall upside-down T-shape when viewed in profile.
[0069] The AC power outlet 535 and the USB ports 540 included in the power base 530 can be configured as described above for various embodiments of the power base 430. In addition, others of the optional connections provided in the power base 530 can include one or more bi-directional USB ports and an HDMI port as two examples.
[0070] In FIG. 5, the first power bank 502A is received within the first receptacle 532 in the same orientation as the power bank 402 is received with the receptacle 432 included in the power bank 430 of FIG. 4. This places the user interface and the plurality of additional ports in the same orientation when viewed in the first power bank 502A of FIG. 5 as they are when viewed in the power bank 402 of FIG. 4. However, the second power bank 502B is received within the second receptacle 542 rotated 180 degrees opposite relative to the orientation of the first power bank 502A. That is, they each have the first end including the user interface facing upward but are otherwise in a reverse orientation (rotated 180 degrees about the longitudinal axis, from one another) . This places the first power bank 502A and the second power bank 502B back-to-back with one another, separated by the body 562 as illustrated in FIG. 5.
[0071] In this orientation, a group of ports 545 is visible on a side of the second power bank 502B that is opposite the side on which the USB ports are located (for example, the USB ports included in the second power bank 502B that correspond to the USB ports 520 included in the first power bank 502A and visible in FIG. 5) . Depending on the embodiment, these ports can include additional USB-C ports, bi-directional USB-C ports for a simultaneous transmission of data during power transfer, USB-A ports and HDMI ports either alone or in combination with one another as some examples.
[0072] In operation, the second end of the first power bank 502A is received within the first receptacle 532 and the second end of the second power bank 502B is received within the second receptacle 542. A receipt of the first power bank 502A completes an electrical connection between circuitry included in the first power bank 502A and circuitry included in power base 530. Similarly, a receipt of the second power bank 502A completes an electrical connection between circuitry included in the second power bank 502A and circuitry included in power base 530.
[0073] The power base 530 can operate with either a single power bank connected to it at either one of the receptacles 532, 542, or with a power bank 502A, 502B received in each receptacle 532, 542. When the power base 530 is connected to a single power bank, connections to the power bank are completed with external devices and equipment via any of the USB ports 540, the group of ports 545, and / or the AC power outlet 535, respectively. For example, when a piece of external equipment plugged into the AC power outlet 535 requires power, the power is drawn from the battery 105 included in the power bank that is connected to the power base 530. The DC power supplied by the battery 105 is converted to AC power by the inverter 234 and supplied to the AC power outlet 535. The controller 236 controls operation of the inverter circuitry such that the power bank 230 delivers an AC output at the correct voltage and frequency.
[0074] More specifically, when a power bank 502A and / or 502B is received within one of the receptacles 532, 542, an electrical connection is also established between circuitry included in the power bank 502A, 502B and inverter circuitry included in power base 530, for example, connecting the battery 105 included in the power bank (s) 502A, 502B to an input to the inverter circuitry 234 included in the power base 530. This also connects the battery 105 included in the power bank 502A, 502B to the inputs of the USB ports 540 in the power base 530. In each case, the power supplied to the AC power outlet 535 and the ports 540, 545 respectively, is controlled by operation of the circuitry included in the power base 530. For example, operation of the circuitry included in the power base 530 can selectively complete connections that activate the AC output provided to the AC power outlet 535 and / or the DC output provided to the USB ports 540 and additional ports 545.
[0075] When both the first power bank 502A and the second power bank 502B are connected to the power base 530, the controller 236 controls a process whereby one of the two power banks 502A, 502B is selected to provide power to any of the USB ports 540 and / or the AC power outlet 535. While operating in this mode, the remaining power bank is not used but instead can provide backup to the power bank whose battery 105 is currently being relied upon to supply power to any external devices and equipment connected to the USB ports 540, the group of ports 545, and / or the AC power outlet 535. For example, the controller 236 can receive separate inputs from the connected power banks 502A, 502B concerning a capacity of their respective batteries.
[0076] The controller 236 controls operation of circuitry included in the power base 530 such that power is drawn from only one of the power banks 502A, 502B as selected by the controller 236 (the selected power bank referred to here as the “active power bank” with the alternate power bank referred to as the “standby power bank” ) . By continually monitoring the capacity of the active power bank, the power base 530 can determine when the power required by the external devices / equipment should be supplied from the standby power bank that is currently docked in the power base 530, instead. For example, an output voltage of the battery 105 included in the active power bank may reach a low-level threshold that prompts the controller 236 to operate the power bank circuitry to begin drawing power from the battery included in the standby power bank and stop drawing power from the battery included in the previously active power bank. In various embodiments, the controller 236 completes this operation without any interruption in the power supplied to the USB ports 540, the group of ports 545, and / or the AC power outlet 535.
[0077] According to various embodiments, the dual-receptacle power base 530 as illustrated in FIG. 5 allows for a hot-swap functionality in the power system 500. That is, a user can provide power to their external devices / equipment with only a single power bank received by the power base 530. When the battery in the power bank reaches a low-level threshold, the user can be prompted to employ a different power bank. The timing of the prompt is such that the user has some advanced notice to allow them to place a second power bank in the empty receptacle that is available in the power base 530. For example, the user can pick up a fully charged power bank from a power station in the facility in which they are located and install it in the open receptacle before removing the previously active power bank for return to a power station for recharging.
[0078] In some embodiments, the power system 500 prompts the user when a power bank has a low battery level. For example, the threshold can be established based on the voltage of the battery. According to these embodiments, a low voltage level threshold is established that provides some margin between the current battery output level and the battery level at which the power bank cannot supply rated power output. In one embodiment, the battery level monitoring is performed by the power bank 502A, 502B in which the battery is located. In another embodiment, the battery level monitoring is performed by the power base 530 in which the battery is located. Different types of notifications or alerts can be provided depending on the embodiment. These can include illumination, audible or tactile notifications in various embodiments. For example, either or both of the power bank 502A, 502B and the power base 530 can include an LED that illuminates or blinks to inform the user that a low voltage level threshold has been reached.
[0079] According to various embodiments, the USB ports 440, 540 included in the power base 530 are employed to provide DC charging power to external devices that are connected to these ports. According to some embodiments, the controller 236 included in the power base 530 obtains the external device information of each connected external device. The controller 236 also obtains the demand of each external device that is connected to the USB ports 420, 520 and controls operation of the power base to provide charging power from a selected one of the connected power banks 502A or 502B to the connected external devices.
[0080] According to further embodiments, one or more of the USB ports 420, 520 optionally can transmit data to and from a connected external device in addition to providing charging power to the connected devices. According to these embodiments, the controller 236 obtains the external device information of each external device that is connected to the USB ports 420, 520 equipped with data transfer capabilities. In operation, the controller 236 controls operation of the power base to transfer data between external devices connected to the USB ports 420, 520 while also charging the devices. For example, the controller 236 can control the power base 430, 530 to: transmit data to an external device connected to a first of the USB ports 420, 520 with the data first being received from an external device connected to a second of the USB ports 420, 520. Where a connected external device requires charging, the control module 236 can control the power base 430, 530 to charge and transmit data to an external device via a selected USB port 420, 520. The ability of the power base to provide data transmission in combination with power charging in the same port adds greatly to the convenience of the user.
[0081] Although the power bases 430, 530 are illustrated as including a single AC power outlet, power bases can include a multiple AC power outlets in some embodiments. For example, in one embodiment, the power bases 430, 530 can include two AC power outlets with including a first AC power outlet 435, 535 as illustrated and a second AC power outlet located on a side of the body 462, 562 located opposite the side on which the first AC power outlet 435, 535 is located. According to another embodiment, the power bases 430, 530 include a duplex AC power outlet.
[0082] Referring now to FIG. 6, a dual-receptacle power base 530 is illustrated with a first power bank 502A received by the power base 530 and a second power bank 502B removed from the power base 530. This view exposes the second receptacle 542 to illustrate some of the features included in the receptacles 532, 542. In general, the receptacles 532, 542 are in the form of a cup (or a “well” ) that is defined by a first side wall 565, a second side wall 566, a third side wall 567, a floor 568 and a panel 569. According to a further embodiment, the panel includes rails, tracks or other features configured to engage a corresponding structure on a side of the power banks to align the power bank when installed in the receptacles 532, 542. According to the illustrated embodiment, the panel 569 is formed from a portion of the body 562. The first side wall 565 and the second side wall 566 extend in a direction perpendicular to the panel 569, parallel to one another. The third side wall 567 extends parallel to the surface formed by the panel 569 and with opposite ends of the third side wall 567 meeting distal ends of the first side wall 565 and the second side wall 566, respectively. In the illustrated embodiment, the floor 568 spans across the entirety of the region at the bottom of the receptacle 542. An electrical connector, not illustrated, is accessible and faces upward through the floor 568. According to these embodiments, the electrical connector in the receptacle 542 is positioned to engage with a corresponding electrical connector located in a face of the power bank opposite the face in which the user interface (for example, the user interface 424) is located. The two connectors complete a wired electrical connection between the power bank and the power base with the power bank received within the receptacle.
[0083] Referring now to FIGS. 7A-7C, additional views are illustrated to show some of the above-described features in greater detail with reference to a power bank 402 and a single-receptacle power base 430. FIG. 7A illustrates a plan view of a second end of a power bank viewed with the power bank 402 laying on its side. The second end being located opposite the first end in which the user interface 424 is located. The second end includes a generally planar surface 425 that includes an opening in which an electrical connector 427 is located.
[0084] FIG. 7B illustrates a top view of the power base 430. This provides another view of the receptacle 432 including a first side wall 465, a second side wall 466 and a third side wall 467. The panel 469 formed by a vertical surface of the body 462 is also illustrated. A floor 468 is also illustrated spanning the region between the bottom of the side walls 465, 466, 467 and the bottom of the panel 469. The floor 468 includes an opening in which an electrical connector 429 is located. The top view provided in FIG. 7B also shows the top surface 431 of the body 462. According to the illustrated embodiment, the top surface 431 is a planar surface that includes an opening in which a switch 433 is located.
[0085] FIG. 7C illustrates a rear isometric view of the power base 430. This illustrates the rear surface 437 of the body 462. As is described in greater detail with reference to FIG. 8, the rear surface 437 can be attached to different structures to conveniently locate the power base 430 within an environment. In general, either the bottom surface of the power base 430 is set on a flat surface for use or otherwise attached to structure where it is used. For example, the power base 430 can be attached to a vertical surface using an adhesive attachment to the rear surface 437 or using fasteners to secure the rear surface 437 to a vertical surface or other vertical element, for example, a vertical post included in the work area (adesk leg, a light stanchion, etc. ) . According to one embodiment, the rear surface 437 includes a keyhole slot designed to engage with a wall mounted fastener. In another embodiment, the rear surface 437 is secured to an adjustable fastening system. The adjustable fastening system can allow a secure attachment (even if temporary) of the power base 430 to a wide variety of structures including panels and shelves.
[0086] As described above, the elements of the receptacle 432 and the panel 469 form the cup or well into which a power bank 402 is inserted. To provide a wired electrical connection between the power bank 402 and the power base 430, the second end of the power bank 402 is inserted within the well. The connector 427 included in the power bank 402 couples to the corresponding electrical connector 429 included in the power base 430. In various embodiments, the connectors 427, 429 are multipin connectors. Power supplied by the battery can be used to begin charging any connected device, including devices that operate from the AC receptacle once the electrical connection is made. As described above in greater detail, the DC power supplied by the battery in the power bank is converted to AC power delivered to the AC power outlet by the inverter circuit included in the power base 430.
[0087] The relatively small form factor, substantial power capacity and additional functionality provided by the systems 400, 500 make them suitable for a wide range of locations and facilities. Applicant finds that the systems 400, 500 can be advantageously deployed in a variety of different ways to seamlessly integrate with existing infrastructure. Referring now to FIG. 8, a variety of different mounting options are illustrated in various embodiments. For ease of reference, a single structure 870 is illustrated. FIG. 8 illustrates portions of the structure 870 including a horizontal shelf 872 and a vertical panel 874. The horizontal shelf 872 includes a top surface 875 including an opening 876. The vertical panel 874 includes a vertical surface 877. From right to left the different embodiments are identified as 8A-8E.
[0088] Referring to a first embodiment illustrated at 8A, the dual-receptacle power base system 500 is illustrated including a first power bank 502A, a second power bank 502B and the power base 530. According to this embodiment, the power system 500 is placed on a top surface of the horizontal shelf 872. This type of installation is easily accomplished given the size, weight and form factor of the power system 500. That is, each of the power banks 502A, 502B and the power base 530 can be carried by hand either separately or together with the system configured as shown in FIG. 8, embodiment 8A. For example, in operation, the power base 530 can be placed on the flat surface available at a workstation. It can remain there idle when a user is not working at the workstation. A user arriving to use the workstation can bring a fully charged power bank from a local power station and insert the power bank into either of the receptacles 532, 542. This immediately makes charging power available for electronic devices and facility equipment that is being used at the workstation. Electronic devices such as smartphones, tablet computers and some laptop computers that include a USB power input can be charged and / or run with power from a power bank installed in the power system 500. Facility equipment such as display screens, TV monitors or other equipment that operates on AC power can be directly connected to the power system 500 via the AC power outlet included in the power system 500. At any time, the user can place a second power bank in the available receptacle as a source of backup power for the connected devices and equipment or to allow immediate removal of the power bank that was originally connected in the power system 500. For example, the user may know that the first power bank should be returned to a local power station for recharging. This hot-swap capability results in charging and operational power remaining present on the USB ports and AC power outlet even as the power bank is removed.
[0089] Referring to a second embodiment illustrated at 8B, a single power base system 400 is illustrated including a power bank 402, and the power base 430. According to this embodiment, the system 400 is placed on the top surface 875 of the horizontal shelf 872 as previously described with reference to the first embodiment. Although the mounting options as shown in 8A and 8B are identical, operation of the embodiment illustrated at 8B differs from the embodiments illustrated at 8A because only a single power bank 402 can be received by and connected with the power base 430. This requires that the user momentarily remove the power bank from the system and replace it when needed. The replacement results in a momentary loss of charging power (and / or operational power) for any devices or equipment that are connected to the USB ports or the AC power outlet.
[0090] Referring to a third embodiment illustrated at 8C, the horizontal shelf 872 includes an opening 875 in which the system 400 is set. This partially recesses the system 400 beneath the top surface 875 of the horizontal shelf 872. In particular, a lower portion of the system 400 is located beneath the top surface 875. According to the illustrated embodiment, the AC power outlet is positioned higher in the body of the power base 430 to allow it to remain accessible above the top surface of the horizontal shelf 872. Although this approach is shown with the opening 875 that is sized to receive a system 400 that includes a single power bank in the power base, other embodiments can be configured with the opening 875 sized to receive a dual-receptacle power base system 500.
[0091] Referring now to a fourth embodiment illustrated at 8D, a mounting bracket 878 is employed to attach the power base 430 to the horizontal shelf 872. According to the illustrated embodiment, the mounting bracket 878 is attached to the rear side of the body 462. The mounting bracket 878 includes a fastener that extends above the top of the body 462. In the illustrated embodiment, the fastener includes a set of jaws that are separated from one another with a gap that is wide enough such that they can be located on opposite sides of the horizontal shelf 872. In operation, the jaws are adjusted to grip the horizontal shelf 872. In some embodiments, a threaded rod with a handle allows a user to adjust the gap between the jaws by rotating the handle. The gap is narrowed with the fastener in place to allow the fastener to engage the top surface 875 and a bottom surface of the horizontal shelf 872. When the jaws are closed on the shelf 872 the power system 400 is securely suspended from the shelf 872. According to the illustrated embodiment, the system is suspended in a secure manner at a lower elevation than the shelf 872.
[0092] Referring to a fifth embodiment illustrated at 8E, a single power base system 400 is illustrated including a power bank 402, and the power base 430. According to this embodiment, the power system 400 is attached to the vertical surface 877 of the panel 874. The attachment securely attaches a rear surface of the body 462 to the vertical surface. This can be accomplished in a variety of ways depending on the embodiment. For example, the rear surface can be affixed to the vertical surface 877 of the panel 874 using an adhesive or using fasteners such as screws or other threaded fasteners.
[0093] The small form factor and wide range of mounting options for the power base allow it to be integrated into a wide variety of facility equipment. The functionality provided by the power base that permits it to receive a portable source of DC power and convert that to AC power at individual pieces of facility equipment to which the individual power bases are mounted provides a great advantage for all types of host facilities including, for example, campuses, office centers, hotels, conference facilities and healthcare facilities such as hospitals.
[0094] Referring now to FIG. 9, a piece of facility equipment in the form of a mobile workstation 900 including the power system 400 is illustrated. The mobile workstation 900 includes a vertical post (or “stanchion” ) 980 affixed to a base 982 that includes a set of wheels. In the illustrated embodiment, the mobile workstation 900 includes office equipment including a first display 984, a second display 985, a computer 986 and a printer scanner 987. In this embodiment, these individual pieces of office equipment, each operated with AC power, are connected to a power strip (not illustrated) which is affixed to the vertical post. The power strip includes a pigtail power cord 983 that includes a multiprong plug as is conventionally used to plug into an AC power outlet.
[0095] The power system 400 is shown with a power bank 402 received by the power base 430 to provide power to the office equipment used at the mobile workstation 900. In operation, the plug included in the power cord 983 is plugged into the AC power outlet 435 included in the power base 430. Operation of the inverter circuitry included in the power base 430 converts the DC power provided by the power bank 402 into AC power delivered to the AC power outlet 435 to power all the connected office equipment: the first display 984, the second display 985, the computer 986 and the printer scanner 987. In contrast to operation of work stations in conventional facility, the mobile workstation 900 need not be moved to a location proximate a wall outlet before it can be used. Instead, according to the illustrated embodiment, the inclusion of the power system 400 allows the mobile workstation 900 a complete freedom of movement for use at any location in the facility.
[0096] Further, although the mobile workstation 900 is illustrated as a standing workstation, the same approach can be used in embodiments including a seated workstation or desk. In addition, many of the advantages provided by the inclusion of a power system 400 in a mobile workstation are also provided when the power system 400 is included in a stationary workstation. For example, changes in office floor plans and workstation layouts no longer require costly changes to building electrical infrastructure in the form of electrical rewiring. Instead, work locations can be equipped with power bases 202, 430, 530, and the work area can include one or more power stations 350 each with multiple power banks 102, 302, 303, 402. This allows users to arrive in the office, grab a power bank from the power station and go straight to the workstation of their choosing. They can set the power bank (or power banks) in the receptacle (s) and power / charge their equipment and devices. As mentioned above, similar advantages can be provided in a wide range of facilities.
[0097] Referring now to FIG. 10, a piece of facility-equipment in the form of an audiovisual ( “AV” ) cart 1000 including the power system 400 is illustrated. The AV cart 1000 includes a vertical post (or “stanchion” ) 1092 affixed to a base 1094 that includes a set of wheels. In the illustrated embodiment, the AV cart 1000 includes audio visual equipment including a wide screen display 1090 and a media player 1096. While FIG. 10 illustrates a media player in the form of a laptop computer, different media players can be employed in various embodiments. Further, where the display is connected to a remote video source, a local media source may not be required at the AV cart 1000.
[0098] In the illustrated embodiment, the wide screen display 1090, the media player 1096 and any other individual pieces of AV equipment, each operated with AC power, are connected to a power strip (not illustrated) which affixed to the vertical post 1092. Here too, the power strip includes a pigtail power cord 1083 that includes a multiprong plug as is conventionally used to plug into an AC power outlet. The power system 400 is shown with a power bank 402 received by the power base 430 to provide power to the AV equipment used at the AV cart 1000. In operation, the plug included in the power cord 1083 is plugged into the AC power outlet 435 included in the power base 430. The inverter circuitry included in the power base 430 operates as described above to provide AC power delivered to the AC power outlet 435. All the connected AV equipment is then powered from the power system 400. Here too, the mobile AV cart 1000 need not be moved to a location proximate a wall outlet before it can be used. Instead, according to the illustrated embodiment, the inclusion of the power system 400 allows the AV cart 1000 a complete freedom of movement for use at any location in the facility.
[0099] Further, the power system 400 includes a mounting bracket, for example, the mounting bracket 878 illustrated and described with reference to FIG. 8. This permits the power system 400 to be easily attached in a secure but temporary manner suspended beneath the work surface where the media player 1096 is located.
[0100] In a further embodiment, the power base 430 includes media hub functionality provided by, for example, an inclusion of an HDMI port in the power base 430. This functionality can be advantageously employed to transmit video to the wide screen display 1090 from a portable electronic device connected to a USB-C port included in the power base 430 at the same time the portable electronic device is being charged from the power base 430.
[0101] Today’s healthcare facilities such as hospitals, surgical centers and nursing homes, as some examples, are often large facilities with multiple floors and multiple wings. Staff operate most efficiently using medical carts as they make rounds and perform specific patient treatments. The large, spread-out nature of these facilities also lend themselves to advantages provided by embodiments described here. Referring now to FIG. 11, a piece of healthcare facility-equipment in the form of a healthcare cart 1100 including the power system 400 is illustrated. The healthcare cart 1100 includes cabinet 1120 with a base 1122 that includes a set of wheels. In the illustrated embodiment, the cabinet 1120 includes a first set of drawers 1124, a second set of drawers 1126 and a worktop 1128. The drawers, 1124, 1126 are located between two side panels, of which a first side panel 1129 located in the foreground is illustrated. Contents of the drawers 1124, 1126 can vary depending on the types of medical care and treatment with which the healthcare cart 1100 is employed. In general, the drawers can store disposable medical equipment (for example, ointments, swabs, gloves and other personal protective equipment) , medications, and medical hardware such as syringes and forceps. Where the care and treatment regularly include administration of IVs, the healthcare cart 1100 can store various-sized needles and cannulas, blood sampling kits, syringes, vent caps, swabs, IV bags and saline.
[0102] The variety of AC powered healthcare equipment located on the healthcare cart 1100 can also vary depending on the application. According to the illustrated embodiment, the healthcare cart 1100 hosts a display 1130, a handheld scanner 1132 (for example, a barcode reader) , a first illumination device 1134 and a second illumination device 1136. The preceding provide some examples. However, a wide variety of AC powered medical equipment can be supported by the power system 400. For example, hospital medical systems used for patient diagnosis, treatment and monitoring that operate on single phase AC power can be included in the healthcare cart 1100 in various embodiments.
[0103] In various embodiments, the healthcare cart 1100 includes a power strip located on a side, rear or within the cart 1100. In these embodiments, each piece of medical equipment operated with AC power, is connected to a power strip (not illustrated) . In the illustrated embodiment, this includes the display 1130, the handheld scanner 1132, the first illumination device 1134 and the second illumination device 1136. The power strip includes a pigtail power cord 1138 that includes a multiprong plug as is conventionally used to plug into an AC power outlet.
[0104] The power system 400 is shown with a power bank 402 received by the power base 430 to provide power to the AV equipment used at the healthcare cart 1100. In operation, the plug included in the power cord 1138 is plugged into the AC power outlet 435 included in the power base 430. The inverter circuitry included in the power base 430 operates as described above to provide AC power delivered to the AC power outlet 435. All the connected healthcare equipment is then powered from the power system 400. The mobility required of carts included in healthcare facilities are particularly well suited to the use of the power systems 400, 500 illustrated and described herein. For example, the carts need not be moved to a location proximate to a wall outlet before it can be used. Instead, according to the illustrated embodiment, the inclusion of the power system 400 allows the AV cart 1000 a complete freedom of movement for use at any location in the facility.
[0105] Further, although the embodiments illustrated in FIGS. 9-11 include a single receptacle power system of 400, dual-receptacle power systems 500 can be alternatively employed in any of the illustrated systems. Also, although not described with reference to FIGS. 9-11, DC charging of portable electronic devices can also be provided by the power base in each of these systems.
[0106] Referring now to FIG. 12, a system 1200 is illustrated including a network operating environment for deploying, monitoring and managing power systems in facilities. The power systems include small form factor power bases 1254A-1254D with integral inverter circuitry employed to provide AC power to conventional power outlets included in the power base (for example, as described herein with reference to power bases 230, 430, 530) . The power bases 1254A-1254D are deployed in a facility 1250, for example, on a variety of facility equipment that can include, for example, work desks 1244, AV stations 1246 and portable lighting modules 1248. The DC power supplied to the inverter circuitry is provided by portable power banks 1256A-1256N deployed in power stations 1250A-1250N placed at locations within the facility 1250. Users can retrieve a power bank (s) 1256A-1256N from a power station 1250A-1250N and connect them to a power base 1254A-1254D associated with the selected facility-equipment they intend to use. Additional equipment, for example, transportation equipment 1249 including an attached power base 1254D can also be made available at the facility 1240.
[0107] As described above with reference to the power station 350, each power station 1250A-1250D includes a controller (for example, a processor) and memory that stores software instructions (software code 1259A-1259N) that when executed by the processor control an operation of the charging circuitry, the wireless communication system and power bank monitoring systems that are included in the power station 350.
[0108] In various embodiments, the power bases 1254A-1254D are attached to the individual items of facility equipment 1244 and transportation equipment 1249 using any of the approaches illustrated and described with reference to FIGS. 8-11. Other approaches can be used depending on the embodiment. For example, the power base 1254D included with the scooter 1249 can be placed within a compartment that is protected from the outside environment. In general, the system 1200 conceptually illustrates the advantages described above when the power systems 400, 500 are distributed at scale in a facility. That is, the distribution of small form factor power bases with integral inverter circuitry provides complete freedom of movement of the various items of facility equipment 1242 throughout the facility 1200. The freedom of movement is available without requiring any costly changes to the electrical infrastructure that would otherwise be required to allow the flexibility of equipment operation provided in the system 1200. The approach is enhanced because, in addition to an AC power outlet, each power base 1254A-1254D includes integral ports that can be used to charge portable electronic devices, to transmit data between devices and between devices and equipment. In some embodiments, the power bases also include an HDMI port to transmit the high-definition digital video and multi-channel digital audio. Further, the approach includes high output, small form factor portable power banks including charging and data ports but having a smaller size and weight than is possible where the power bank is also required to directly provide AC power.
[0109] The power bases 1254A-1254D can include one or more single-receptacle power bases and one or more dual-receptacle power bases depending on the embodiment. In each of these embodiments, a wired connection between the power bank 1256A-1256N and the circuitry included in the power base 1254A-1254D is completed when a power bank is received by the power base. The dual-receptacle power bases deployed in the system 1200 provide a “hot swap” capability whereby a first power bank that has a low charge can be replaced by a second power bank that is fully charged while the AC power outlet and accessory outlets are drawing power without any interruption in the power that is supplied to the outlets.
[0110] According to one embodiment, the facility 1240 includes an intranet that provides a wireless communication network within the facility 1240. This can be employed to allow a local system operator to receive information transmitted wirelessly from any or all of the power bases 1254A-1254D, the plurality of power banks 1256A-1256N and / or the power stations 1250A-1250N when these system elements include wireless communication functionality. According to further embodiments, the system 1200 includes a network 1260 that provides for communication between elements of the system 1200 included at the facility 1240 and a suite of enterprise resources 1262 that can be remote from the facility. In various embodiments, the enterprise resources 1262 are utilized by one or more enterprises that deploy the system elements at a facility 1240 that they operate.
[0111] According to the illustrated embodiment, the enterprise resources 1262 includes a management module 1270, a monitoring module 1272, a device activation module 1274 (optionally) , a network interface 1264 a processor 1266 and a memory 1268. The memory 1268 includes at least one program. The enterprise resources can also include an I / O system and data storage (not illustrated) . Depending on the embodiment, the data storage can include any of a relational database, object-oriented database, unstructured database, or another type of database. Further, the data storage can be included in any aspect of a memory system, such as in RAM, ROM or disc, and may also be separately stored on one or more dedicated data servers included in the enterprise resources 1262.
[0112] The enterprise resources 1262 can include additional features and functionality in various embodiments. According to some embodiments, the enterprise resources 1262 include a database configured to store information concerning one or more of the status, location and health of the power bases 1254A-1254D, the plurality of power banks 1256A-1256N and / or the power stations 1250A-1250N.
[0113] Depending on the embodiment, the enterprise resources 1262 can include one or more of a variety of computing devices such as a general-purpose computer such as a PC, a laptop, a tablet computer or other computing device. The enterprise resources 1262 can be hosted on one or more servers accessible to the system operator and the facility 1240 via the network 1260. The network interface 1264 is employed for communication between the network resources 1262 and other elements connected to the network 1260. In some embodiments, these other elements can include end user devices such as desktop computing devices, laptop computing devices and handheld computing devices such as smart phones and tablet computers. Applicant notes that the communication between the pieces of facility equipment 1242 and transportation equipment 1249 is provided by wireless communication systems included in either or both of the power bases 1254A-1254D, and / or the plurality of power banks 1256A-1256N. That is, the communication functionality is provided by elements of the power system 400, 500 and not by the facility equipment (or the transportation equipment) itself.
[0114] Depending on the embodiment, the network 1260 can include any of local-area networks (LANs) , wide area networks (WANs) , wireless communication, wired communication and may include the Internet. According to further embodiments, the communication networks provide access to one or more remote devices, servers, application resource management and / or data storage systems either alone or in combination with the enterprise resources 1262. Communication in the system 1200 can occur using any of Wi-Fi networks, BLUETOOTH communication, cellular networks, satellite communication, Ethernet and peer-to-peer networks. Other communication protocols and topologies can also be implemented as a part of the communication network 1260 in accordance with various embodiments. The communication network 1260 can be any network topology as known to those of ordinary skill in the art capable of supporting the operations described herein.
[0115] In general, the enterprise resources 1262 operate to monitor and manage the power system elements. According to various embodiments, elements of the enterprise resources 1262 are provided as a software application distributed by a resource administrator to an enterprise or operator responsible for providing the portable power system services to the facility. This can be a property owner, a facilities manager or a contract service provider. The functionality can provide the system operator with information including usage statistics, a projected life of the internal battery included in the plurality of power banks 1256A-1256N, a current charge status of the internal battery and a location of the power banks. In some embodiments, the software application is provided as a web application hosted by the system administrator. The application is accessed in real-time via the network 1260 by the operators of portable power system services for the facility 1240. According to these embodiments, an API is provided by the system administrator to the operators to provide the enterprises with web-access to the functionality provided by the management module 1270, the monitoring module 1272 and the device activation module 1274.
[0116] According to one embodiment, the management module 1270 is employed to establish the distribution of the elements of the power systems (the power bases 1254A-1254D, the plurality of power banks 1256A-1256N and / or the power stations 1250A-1250N) , for example, their quantity and locations at an enterprise site. The management module 1270 can deliver the information in a variety of text and graphics format including location maps that are available for display on a graphical user interface (GUI) . The management module 1270 can also operate to aggregate data collected facility-wide concerning the status, location and health of the power bases 1254A-1254D, the plurality of power banks 1256A-1256N and / or the power stations 1250A-1250N. This information can also be presented for display in the GUI of the operators of portable power system services for the facility 1240. As a result, the management module 1270 provides the system operators with a quantified data to allow them to assess the utility and operating condition of the elements included in the portable power system.
[0117] The plurality of power banks 1256A-1256N are docked in the corresponding power station 1250A-1250N, respectively, when they are not being employed by an end user. According to one embodiment, the monitoring module 1272 is employed to provide the enterprise with information concerning one or more of the status, location and health of the plurality of power banks 1256A-1256N. In one embodiment, the monitoring module 1272 provides an indication of whether each of the portable chargers is docked at the power station, or alternatively has been removed by a user. Further embodiments provide information for each of the power banks 1256A-1256N including one or more of usage statistics, a projected life of the internal battery and a current charge status of the internal battery. In embodiments in which power banks 1256A-1256N equipped with GPS are connected to a power base, an operator can employ the monitoring module 1272 to provide the operator with location-based information concerning the item of facility equipment 1242 or transportation equipment 1249.
[0118] In some embodiments, a facility operator can choose to maintain greater control over the activation and use of the plurality of power banks 1256A-1256N. The facility operator that permits ready access to their facilities by the public provides one example where an enterprise may elect to require a formal activation process before a power bank is activated for operation. Operators of private facilities may also be interested in receiving at least a positive identification of the user before a power bank is activated for operation. The activation process can take a variety of forms depending on the embodiment. However, in each of these embodiments, at least one of the power station and the plurality of power banks includes a wireless communication system. In these embodiments, the wireless communication system is employed for communication of an activation signal to the power bank following a receipt of the required credentials and / or collateral from the end user.
[0119] According to one embodiment, the device activation module 1274 is employed to process activation requests received when an end user requests an activation of a power bank for use. Depending on the embodiment, the activation request can include information that uniquely identifies the user, information that uniquely identifies the charger and, where required, collateral provided by the user. In one embodiment, the device activation module 1274 also generates a device activation signal if the user request is approved. In a further embodiment, the device activation module 1274 also communicates messaging to the end user, for example, indicating an approval or denial of a request to activate a power bank.
[0120] According to one embodiment, the device activation module 1274 operates to receive and process user identification and / or authentication information (and collateral if required) in addition to generating the device activation signal. According to various embodiments, the management module 1270 and / or monitoring module 1272 are also integrated into the device activation process. For example, the management module 1270 can be employed to store payment or other account information that is employed to authorize an end user to activate one of the power banks included in the plurality of power banks 1256A-1256N. As another example, the monitoring module 1272 can be employed to monitor location and / or operational status of the power banks when they are in possession of an end user.
[0121] In operation and according to one embodiment, the power stations 1250A-1250N are smart power stations equipped with sophisticated monitoring and wireless communication systems. This can allow a communication of status information including any one of the following types of information, any combination of the following or any combination of the following and other types of information: battery characteristics such as the nominal battery voltage, the battery input current when the battery is being charged, and the battery output voltage when supplying current to a user device; and any of the types of status information described above. In another embodiment, a separate device such as a local tablet computer associated with each of the power stations 1250A-1250N communicates information received from the power station to the enterprise resources 1262 via the network 1260.
[0122] The enterprise resources 1262 including the management module 1270 and the monitoring module 1272 with the network communication functionality allow an enterprise operator to act as a remote manager of a “fleet” of power banks with data to assist in remotely tracking usage, monitoring a condition of the individual power banks and controlling access to the power banks in various embodiments.
[0123] The techniques described above with reference to FIG. 12 may be implemented, for example, in hardware, one or more computer programs tangibly stored on one or more computer-readable media, firmware, or any combination thereof. The techniques described above may be implemented in one or more computer programs executing on (or executable by) a programmable computer including any combination of any number of the following: a processor, a storage medium readable and / or writable by the processor (including, for example, volatile and non-volatile memory and / or storage elements) , an input device, and an output device. Program code may be applied to input entered using the input device to perform the functions described and to generate output using the output device.
[0124] Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be part of this disclosure, and are intended to be within the spirit and scope of the invention. Accordingly, the foregoing description and drawings are by way of example only.
Claims
1.A system comprising:a power bank with a form factor that provides an overall size, an overall shape and an overall weight that permits the power bank to be held in a single hand, the power bank including:a power bank housing configured to be held in the single hand;a rechargeable battery located in the power bank housing; anda USB-C port accessible from an exterior of the power bank housing and configured for a bi-directional transfer of data and power with an external electronic system, the USB-C port suitable for providing charging power from the rechargeable battery to the external electronic system via a temporary wired connection between the USB-C port and the external electronic system; anda power base including:a power base housing configured to receive at least one power bank; andcircuitry housed within the power base housing, the circuitry including a DC input, an AC output, at least one DC output, an AC power outlet coupled to the AC output, and a power conversion circuit coupled to the AC output, each of the AC power outlet and the at least one DC output accessible from an exterior of the power base housing,wherein the power base housing is provided in a form factor that provides an overall size, an overall shape and an overall weight that permits the power base to be held in a single hand;wherein the rechargeable battery included in the at least one power bank is coupled to the DC input to provide DC power to the power conversion circuit when the at least one power bank is received by the power base, the power conversion circuit configured to convert DC power received from the rechargeable battery to AC power delivered to the AC power outlet, andwherein the at least one DC output includes a USB port configured to provide charging power from the rechargeable battery to the external electronic system via the power base.2.The system of claim 1, wherein the power base is configured to receive a plurality of power banks including a first power bank and a second power bank, andwherein, in a first operating mode with each of the first power bank and the second power bank received by the power base, the power conversion circuit included in the power base is configured to receive power from the first power bank with the second power bank available as a backup source of power.3.The system of claim 2, wherein the power base includes a monitoring circuit configured to monitor a power level of the first power bank in the first operating mode, andwherein, in a transfer operation, the power base is configured to automatically switch from the first operating mode to the second operating mode to provide power to the power conversion circuitry from the second power bank when the monitoring circuit detects a low power level of the first power bank.4.The system of claim 3, wherein the system is configured to permit each of: a removal and replacement of the second power bank in the first operating mode without interrupting power provided to the power conversion circuit from the first power bank; and a removal and replacement of the first power bank in the second operating mode without interrupting power provided to the power conversion circuit from the second power bank.5.The system of claim 1, wherein the power bank includes an output port configured to transmit high-definition digital video and multi-channel digital audio received via the USB-C port to an external display device via a single cable connecting the output port to the external display device.6.The system of claim 1, wherein the USB port included in the at least one DC output includes a USB-C port configured for a bi-directional transfer of data and power with an external electronic system.7.The system of claim 1, wherein the power bank includes a memory card reader including a memory card slot accessible at an external surface of the power bank housing for a receipt of a memory card for a transfer of data stored on the memory card to the external electronic system via the USB-C port.8.The system of claim 1, wherein the AC power output includes a single-phase AC output having a magnitude of at least 100VAC.9.A method of delivering single phase AC power with a modular power base that includes a plurality of USB ports and inverter circuitry coupled to an AC power outlet, the method comprising:providing a power bank with a form factor that provides an overall size, an overall shape and an overall weight that permits the power bank to be held in a single hand, the power bank including: a power bank housing configured to be held in the single hand, a rechargeable battery located in the power bank housing, a USB-C port accessible from an exterior of the power bank housing and configured for a bi-directional transfer of data and power with an external electronic system, the USB-C port suitable for providing charging power from the rechargeable battery to the external electronic system via a temporary wired connection between the USB-C port and the external electronic system; andproviding a power base including a housing configured to receive at least one power bank, and power conversion circuitry housed within the power base housing, the power conversion circuitry configured to convert DC power received from the rechargeable battery to AC power delivered to the AC power outlet, the power base housing is provided in a form factor that provides an overall size, an overall shape and an overall weight that permits the power base to be held in a single hand, the plurality of USB ports configured to provide charging power from the rechargeable battery to the external electronic system via the power base.10.The method of claim 9, further comprising:configuring the power base to receive a plurality of power banks including a first power bank and a second power bank, andconfiguring the power base to, in a first operating mode with each of the first power bank and the second power bank received by the power base, receive power from the first power bank with the second power bank available as a backup source of power.11.The method of claim 10, wherein the power base includes a monitoring circuit, and wherein the method further comprises configuring the power base to monitor a power level of the first power bank with the monitoring circuit in the first operating mode, and to automatically switch from the first operating mode to the second operating mode to provide power to the power conversion circuitry from the second power bank when the monitoring circuit detects a low power level of the first power bank.12.The method of claim 11, further comprising configuring the power base to permit each of: a removal and replacement of the second power bank in the first operating mode without interrupting power provided to the power conversion circuit from the first power bank; and a removal and replacement of the first power bank in the second operating mode without interrupting power provided to the power conversion circuit from the second power bank.13.The method of claim 9, further comprising the including an output port in the power bank, the output port configured to transmit high-definition digital video and multi-channel digital audio received via a USB port included in the plurality of USB ports to an external display device via a single cable connecting the output port to the external display device.14.The method of claim 9, wherein a USB port included in the plurality of USB ports includes a USB-C port configured for a bi-directional transfer of data and power with an external electronic system.15.The method of claim 9, wherein the power base includes a memory card slot accessible at an external surface of the power bank housing, and wherein the method further comprises configuring the power base for a transfer of data stored on the memory card to the external electronic system via a USB port included in the plurality of USB ports.16.The method of claim 9, further comprising configuring the power conversion circuitry to provide a single-phase AC output having a magnitude of at least 100VAC to the AC power outlet.