Battery chargers for different power sources

Abstract

The charger may determine a type of power source coupled to the charger and adjust power from the power source based on the determined type of power source.

Description

[0001] This application is a divisional application of Chinese patent application 201580020052.8, filed on April 9, 2015, with the invention name “Battery charger for different power sources”. Technical Field

[0002] Embodiments may relate to a battery charger for an electronic device. Background Art

[0003] Power supply and battery life are factors that may affect the user experience of electronic devices such as mobile terminals.Electronic devices may be powered by a direct current (DC) power source or, alternatively, by an alternative power source (or alternative energy source). BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Arrangements and embodiments will be described in detail with reference to the following drawings, in which like reference numerals refer to like elements, and in which:

[0005] Figure 1 is a diagram of a charging system and an electronic device according to an exemplary arrangement;

[0006] Figure 2 is a diagram of components for charging a battery of an electronic device according to an exemplary embodiment;

[0007] Figure 3A is a graph showing characteristics of a DC power supply;

[0008] Figure 3B is a graph showing characteristics of an alternative power source;

[0009] Figure 4 is a diagram of a battery charger and other components according to an exemplary embodiment;

[0010] Figure 5A illustrates different modes of power control according to an exemplary embodiment; and

[0011] Figure 5B shows different scenarios of relative power levels between a power source and a load according to an exemplary embodiment;

[0012] Figure 6 An electronic device according to an exemplary embodiment is shown; and

[0013] Figure 7 An electronic system according to an exemplary embodiment is shown. DETAILED DESCRIPTION

[0014] In the following detailed description, similar marks and characters may be used to designate the same, corresponding and / or similar components in different figures. In addition, in the following detailed description, exemplary sizes / models / values / ranges may be given, although the embodiments are not limited to the same sizes / models / values / ranges. Specific details are set forth herein to facilitate description of exemplary embodiments, but it is apparent to those skilled in the art that these embodiments may be practiced without these specific details.

[0015] An electronic device (e.g., a mobile device) may utilize a power source (or power supply) to power the electronic device. The power source may be, for example, a direct current (DC) power source, an alternating current (AC) power source, or an alternative power source (or alternative energy source). Other types of power sources may also be provided. The following description may relate to an electronic device; however, the description may also relate to an electronic system.

[0016] An electronic device may be any one of a mobile terminal, a mobile device, a mobile computing platform, a mobile platform, a laptop computer, a tablet computer, an ultra-mobile personal computer, a mobile Internet device, a smart phone, a personal digital assistant, a display device, a television (TV), etc.

[0017] Figure 1 A charging system and electronic device according to an exemplary arrangement are shown. Other arrangements may also be provided.

[0018] More specifically, Figure 1 A first arrangement is shown in which the electronic device 50 may be powered by an alternative power source 20 . Figure 1 A second arrangement is also shown, in which the electronic device 50 can be powered by the DC power supply 30. The electronic device can be different depending on the type of power supply used to power the electronic device. In other words, the electronic device can be powered by a specific type of power supply.

[0019] An alternative power processing unit 10 (or a functional block of impedance matching and voltage regulation) may be used when the electronic device 50 is powered by an alternative power source 20. In an alternative, the DC power source 30 may be directly coupled to the electronic device 50 (without using an alternative power processing unit) to provide a DC voltage (or power).

[0020] Figure 1 An alternative power processing unit 10 is shown external to electronic device 50. However, alternative power processing unit 10 may be part of (ie, internal to) electronic device 50.

[0021] The alternative power source 20 may be any of solar energy, mechanical energy (such as via wind), photovoltaic (PV) energy, thermal energy, radio frequency (RF) energy, vibration energy, biomechanical energy, fuel cells, and / or any other power source.

[0022] The alternative power source 20 may provide power (or energy) to the alternative power processing unit 10. As an example, the alternative power source 20 may provide input power (or input energy) to a maximum power point tracking (MPPT) device. The MPPT device may be a device for dynamically tuning the output impedance of a connected power source (or energy source) so that the output power of the power source is optimized and / or the maximum available power (e.g., from a harvester) is output and transmitted to the load.

[0023] The MPPT can provide power (or voltage) to the voltage regulator based at least in part on the power provided by the alternative power source 20. The voltage regulator can provide a regulator output voltage to the electronic device 50.

[0024] like Figure 1 As shown in FIG. 5 , the electronic device 50 may include a battery charger 52, a voltage regulator (VR) 54, a load 56, and a battery 58 (e.g., at a battery port). The electronic device 50 may include other components, which may or may not be part of the load 56. Additional components may include, but are not limited to, a processor, a display, a speaker (or an audio output device), a wireless communication device, a camera, a memory (or a storage device), a microphone, etc. Other components and / or fewer components may also be provided.

[0025] The battery charger 52 may receive an input voltage (or input power). Figure 1 It is shown that the battery charger 52 may receive power from the alternative power source 10 (for use in place of the power source 20), or the battery charger 52 may receive power from the DC power source 30. The battery charger 52 may also receive power from other types of power sources.

[0026] For example, the battery charger 52 may provide an output voltage to the voltage regulator 54. The voltage regulator 54 (of the electronic device 50) may provide an output voltage to the load 56. The voltage regulator 54 may provide the load 56 with a regulated output voltage.

[0027] The battery charger 52 may also (or alternatively) provide an output voltage to the battery 58 (provided at a battery port of the electronic device 50). The battery 58 may be charged by the voltage received from the battery charger 52.

[0028] The battery charger 52 may also provide an output voltage to a load 56 (via a voltage regulator 54 ) and / or a battery 58 .

[0029] Figure 1 The use of an alternative power source (or alternative energy source) is shown. However, the power received and the output voltage from the alternative power source 20 may be unstable.

[0030] Figure 1 It is shown that different power supplies can be used to power different types of electronic devices. However, the electronic device may be incompatible with the dedicated power supply and require an alternative output voltage that is regulated within a certain percentage of the nominal value. In addition, the power level of the power source or energy source (or power supply) must be large enough to charge the battery and power the load. However, the specific requirements of the power source (or power supply) may make the alternative power source incompatible with different types of electronic devices.

[0031] For example, in at least one arrangement, a hybrid power delivery system may be provided to enable an electronic device (e.g., a mobile platform) to be powered using either a DC power source or an alternative power source. In at least one arrangement, multiple battery chargers may be provided on a platform having multiple power inputs.

[0032] Embodiments may provide a control mechanism (or control scheme) on power conversion distribution. Embodiments may provide a single power conversion. Embodiments may provide performance requirements of both device / system (workload, charging) and power supply (power regulation).

[0033] Figure 2 is an illustration of components for charging a battery of an electronic device according to an exemplary embodiment. Other embodiments and configurations may also be provided.

[0034] Figure 2 A power source 22 (or power supply), a battery charger 60, a load 56 (device or system), and a battery 58 (e.g., in a battery port) are shown. For example, the power source 22 ( Figure 2 ) can represent any of a number of different power sources such as a direct current (DC) power source and / or an alternative power source.

[0035] The battery charger 60 can perform various functions, which will be described below with respect to any of a number of different power sources.The battery charger 60 can be used with any of a number of different power sources.

[0036] The load 56 may be an electronic device load (or an electronic system load). The load 56 and the battery 58 may correspond to Figure 1 The load and battery shown in .

[0037] In at least one embodiment, the battery charger 60, the load 56, and the battery 58 can all be considered part of the electronic device (or electronic system). The battery charger 60 can also be separate from (or external to) the electronic device (or electronic system).

[0038] Embodiments may provide only a single power conversion stage, which has one or more feedback controls. A control logic unit (or control algorithm) may dynamically adapt to the power characteristics of the power supply and the load demand. Power distribution and partitioning may be self-configured and optimized, even with different types of power supplies (such as DC power supplies or alternative power supplies).

[0039] Embodiments may increase power conversion efficiency by using a single power stage instead of multiple power stages.

[0040] Embodiments may provide a single power stage (in hardware) by combining two different functions, namely power handling and voltage regulation. This is better than an arrangement with cascaded power conversion.

[0041] Embodiments may provide one of multiple operating modes (or states) based on power demand, battery charge state, and / or different scenarios of different power supplies. Electronic device / system operating parameters may be determined based on the applications during operation (using software / firmware).

[0042] Embodiments may utilize an adaptive control algorithm (and / or utilize a logic unit, at least a part of which is hardware) to provide critical performance requirements from a power supply (such as impedance tuning), a battery (such as a charging curve), and / or a device / system load during operation.

[0043] Embodiments may power a load (system or device) and / or charge a battery regardless of the type of power supply connected to the electronic device, and thus rely only on the power output of the power supply. A control mechanism (or control algorithm) may dynamically adapt to the power supply type, such as the non-linear current-voltage (I-V) curve of a fixed DC voltage source or an alternative energy source (such as energy harvested from photovoltaic voltage (PV)). For example, the output voltage may be controlled or regulated at the device / system load or the battery. Thus, both power handling and battery charging may be implemented by the battery charger 60( Figure 2 as shown in). Thus, the battery charger 60 may be referred to as a universal battery charger and / or a general-purpose battery charger.

[0044] Embodiments may provide a control mechanism (or control algorithm) that can adjust single-stage power conversion so that the input power from the power supply to the device or system can be optimized while also meeting the device / system performance criteria for power / voltage / current.

[0045] Figure 2 It is shown that the input of the battery charger 60 may be a power supply having a fixed DC output voltage (such as from a DC power supply) or a non-linear (or linear) current-voltage (I-V) curve (such as from an alternative power supply). The power supply may provide limited energy (e.g., P_supply < P_demand) or have excess power capacity.

[0046] Figure 3A shows the characteristics of a DC power supply. For example, Figure 3A A graph of the output voltage (V) of a DC power supply compared to the output current (A) / power (W) is shown. As can be seen, the DC power supply may be a fixed DC voltage. Figure 3A A constant supply voltage of a DC power supply is shown.

[0047] Figure 3B The characteristics of alternative power sources (or power supplies) are shown. For example, Figure 3B The left side graph shows the output voltage (V) versus the output current (A), and Figure 3B The right side graph shows the output voltage (V) versus output power (W). Figure 3A shows a constant voltage supply of DC power, but Figure 3B Different output voltages of alternative power supplies are shown.

[0048] Figure 3B shows that the output current of an alternative power supply can vary with its output voltage. Figure 3A By comparison, this shows the characteristics of a DC power supply that can provide current at any given supply voltage. Figure 3B It is also shown that the alternative power supply can provide a maximum power (Pmax) at a specific voltage and current, which can be defined as its maximum power point (MPP) that depends on the input (light, mechanical motion, radio frequency (RF) energy, etc.), and that the power supplied by the alternative power supply may be severely reduced if the alternative power supply is operated at a voltage or current different from its maximum power point MPP.

[0049] In the previous arrangement, the device / system is connected to a DC power source (or to an AC mains via an AC / DC adapter), and then the electronic device (or system) can be powered sufficiently to simultaneously power the load and charge the battery.

[0050] However, in arrangements where the device / system is connected to an alternative power source, the energy or power capacity of the alternative power source may have a different upper bound. Figure 3B The graph in shows that the PV power can always be below or equal to the maximum power value (eg for solar power). Figure 3B shows the maximum power as P MPP 1. P MPP 2. P MPP 3 and P MPP 4. The power output of the power supply can vary from zero to P based on the operating voltage, load current, etc. MPP (or Pmax). In addition, the nonlinearity of the current-voltage IV of the alternative power supply may require a different design than the DC power supply.

[0051] Embodiments may use a DC power source and / or a variable power source to power an electronic device (eg, a mobile platform).

[0052] Figure 4 is a diagram of a battery charger and other components according to an exemplary embodiment. Other embodiments and configurations may also be provided.

[0053] Figure 4 It is shown that the power source 22 (e.g., a variable power source) can be connected to an electronic device (or electronic system) having a load 56 and a battery 58 using components (e.g., a power converter 106, a pulse width modulation (PWM) device 108 (or a pulse width generator), and a second compensator 104). Embodiments can provide feedback control that is embedded and combined with the power converter 106 and the pulse width modulation device 108. Embodiments can include a first compensator 102 (or a disturbance and observation compensator) and a second compensator 104 (or a PID compensator). These features can perform closed-loop control for stability and regulation, and can also drive circuit performance so that the available power of the load is optimized (e.g., MPPT).

[0054] The battery charger 60 may be provided in an electronic device, such as ( Figure 1 ) electronic device 50. Alternatively, the battery charger 60 may be provided outside the electronic device, for example ( Figure 1 ) electronic device 50.

[0055] Adopt and Figure 2 , the power source 22 can provide power to the battery charger 60. In turn, the battery charger 60 can operate and provide power to the load 56 and / or the battery 58. For example, the power source 22 ( Figure 2 ) can represent any one of a plurality of different power supplies such as direct current (DC) power supply and / or alternative power supply. Power converter 106 can provide a first power to load 56. Power converter 106 can provide a second power to battery 58. The first power can be similar to the second power. Alternatively, the first power can be different from the second power.

[0056] like Figure 4 As shown in FIG. 1 , the battery charger 60 may include a first compensator 102 , a second compensator 104 , a power converter 106 , and a pulse width modulation (PWM) device 108 .

[0057] The first compensator 102 may be referred to as a disturbance and observation compensator (or P&O compensator). The second compensator 104 may be a current feedback control compensator. For example, the first compensator 102 may be a circuit or a hardware entity. For example, the second compensator 104 may be a circuit or a hardware entity. The first compensator 102 and / or the second compensator 104 may each be characterized by an algorithm (or software entity) running on a microprocessor, a digital signal processor (DSP), a microcontroller, or a computer. The first compensator 102 and / or the second compensator 104 may include a logic unit, at least a portion of which is hardware.

[0058] The battery charger 60 can provide an adjustable current reference parameter I ref . Adjustable current reference parameter I ref The adjustable current reference parameter I may be generated by the first compensator 102. The adjustable current reference parameter I may be dynamically adjusted in real time based on the operating time value of the input power and the battery capacity. ref .

[0059] The additional element 105 may be a circuit element to connect features (e.g., the first compensator 102 and the second compensator 104) to a battery charger. The battery charger may attempt to regulate the charging current to a given reference value, which may depend, for example, on how much the battery can be charged. The additional element 105 may enable the battery charger to achieve compatibility with alternative power sources with minimal modification.

[0060] As shown, power converter 106 can receive an input voltage V from device 103 IN (or input voltage value) and input current I IN (or input current value). Input voltage V IN and input current I IN The actual real-time measured input voltage and current of the power converter 106 may be obtained. The power converter 106 may receive the pulse width modulation from the pulse width modulation device 108 and provide an output current I battery And the output voltage V out The output power may then be provided to the load 56 and / or the battery 58. Similar powers may be provided to the load 56 and the battery 58. Alternatively, different powers may be provided to the load 56 and the battery 58.

[0061] The power converter 106 may include a DC / DC power stage with a power sensing element. For example, the power converter 106 may include a power converter with buck, boost and / or buck-boost functions because the voltage input from the power source may have a wide range.

[0062] The first compensator 102 may receive (eg, feedback) an output voltage V from the power converter 106. out and output current I battery The first compensator 102 can be based on the output voltage V out and output current I current Changing the Operation Mode of the Battery Charger 60 The first compensator 102 may change the mode of the battery charger 60 .

[0063] PWM device 108 can provide a pulse width modulated signal to power converter 106. The pulse width modulated signal can be used by power converter 106 to adjust the output current I battery and output voltage V out The pulse width modulated signal (or multiple pulse width modulated signals) can drive the switch of the switching converter, for example, to achieve an output voltage V at the output of the power converter 106. out and output current I battery .

[0064] The first compensator 102 may receive an output current I from the power converter 106 battery and output voltage V out Power P IN and the current I flowing into the power converter 106 IN The first compensator 102 can monitor these values ​​to determine corresponding or appropriate operation under the alternative power or energy source. The first compensator 102 can track the maximum power point MPP of the power source. The battery 58 can be based on the output current I battery Charging, output current I battery The current can be controlled so as to satisfy several criteria simultaneously. Embodiments can satisfy the charging profile of a specific battery or battery type while utilizing an alternative power source or harvested energy source.

[0065] Embodiments may control a parameter or characteristic of the output power based on the type of power source coupled to the battery charger 60. For example, the first compensator 102 may output a current reference I ref , which can be continuously adjusted based on the amount of input power from the power source 22. This can achieve an impedance matching (or maximum power point tracking) function when an alternative power source input is provided (such as the power source 22), or can be achieved by a power conversion stage present in the battery charger 60. Thus, multiple power conversions can be provided in a single stage.

[0066] Embodiments may control and manage device / system power allocation, voltage regulation, and / or battery operation to avoid (or reduce) problems associated with power mismatch.

[0067] Figure 5A Different modes of power control according to exemplary embodiments are shown.Other embodiments and configurations may also be provided.

[0068] Figure 5A A graph of voltage versus time (in the lower part of the graph) and a graph of current versus time (in the upper part of the graph) are shown. The time axis (i.e., y-axis) shows the pre-charge time period, the constant current (CC) time period, and the constant voltage (CV) time period. These are the time periods of the battery charger.

[0069] Figure 5A Three different operating states (or modes) of the battery charger are shown to cover different possible power scenarios for the electronic device. Figure 5A A maximum power point tracking (MPPT) operating state, a maximum constant current tracking (MCCT) operating state, and a voltage regulator (VR) operating state are shown. An operating state may also be referred to as a mode.

[0070] The battery charger 60 may be provided in an MPPT (or Maximum Power Point Tracking) mode in order to obtain maximum power from the input power source.

[0071] When the capacity of battery 58 exceeds the pre-charge level but is not yet or close to being fully charged (e.g., less than 90% of full capacity), battery charger 60 may be provided in MCCT (or maximum constant current tracking) mode to perform maximum charging current tracking.

[0072] When the total available power from the input source is less than or greater than the load demand and / or charging current, the battery charger 60 can be provided in a voltage regulation (VR) mode to facilitate situations where operation must maintain a low threshold voltage for the electronic device (i.e., battery trickle charging). In this example, the power balance between the power source and the load can be monitored, evaluated, and adjusted to improve performance and maintain system stability and controllability.

[0073] Figure 5B Different schemes of relative power levels between a power supply (or power source) and a load according to exemplary embodiments are shown. Other embodiments and configurations may also be provided. For example, different schemes relate to the power levels of the power source and the load.

[0074] exist Figure 5B In each of the graphs, a graph of power transfer and supply versus time is shown. In the upper graph, P MPP is greater than the maximum power demand from the load Pload,max. In the middle diagram, Pload,max is greater than P MPP, which is greater than the minimum power consumed by the load during this period, Pload,min. In the lower figure, Pmpp is less than Pload,min. Figure 5B The conditions shown in show the possibility that the control logic unit (or circuit) can adapt the input and output power to maintain the appropriate voltage for supplying the load while still maintaining optimized power transfer and battery charging.

[0075] The following may involve algorithms executed based on the battery charger 60 .

[0076] B=(I in _k+1 in _k)

[0077] XOR(P in _k+1>P in _k)

[0078] XOR((I_ battery _k+1>I_max)

[0079] OR(V_out_k+1>V_max))

[0080] If B = 1, I ref _k+1=Iref_k+ΔI, then increase the current and control variable;

[0081] If B=0, Iref_k+1=Iref_k-ΔI, then the current and control variable are reduced.

[0082] As in the equation described above, B can represent a Boolean value. In the equation: k, k+I can indicate a sequence value; l in Can represent the current of the input power supply; P in V_out may represent the power of the input power source; V_out may represent the voltage output of the battery charger; and I_battery may represent the charge (+) or discharge (-) current from the battery.

[0083] The maximum charging current I_max and the maximum voltage V_max may be adjusted during battery charger operation based on the battery state (and energy capacity).

[0084] In the above equation, ΔI may represent a current step, which may be a fixed value or a variable value.

[0085] As an example, when the electronic device shows that the battery charging current and voltage are kept below their limits (I_ Battery max ), (V out <V max ) while the input current decreases (I in ​​_k+1 in _k) and the increase in input power (P in _k+I>P in _k), then the battery charger (or control logic unit) can reduce I ref In another example, when the electronic device (or system) is not drawing current and its battery is nearly fully charged, and the input alternative power source can provide excess power, the control logic unit (or circuit) can change the value of Iref to the trickle charge current of the battery. Therefore, the battery can operate at a controllable and relatively low input current in a specific pre-charge mode.

[0086] Figure 6 An electronic device according to an exemplary embodiment is shown. Other embodiments and configurations may also be provided.

[0087] More specifically, Figure 6 An electronic device 200 is shown, which may include any of the features, elements, and operations discussed above. Figure 6 The electronic device 200 shown in FIG. 1 may correspond in whole or in part to Figure 1 The electronic device 50 shown in FIG. 1 and / or features of other figures may also be provided. More or fewer components may also be provided.

[0088] Figure 6 It is shown that electronic device 200 may include battery 210 , processor 220 , display 230 , speaker 240 , wireless communication device 250 , camera 260 , flash storage device 270 , memory 280 , microphone 290 , and battery charger 295 .

[0089] Processor 220 may perform the operations discussed above by using instructions received (eg, via a computer-readable medium).

[0090] Figure 6 The battery charger 295 is shown to be internal to the electronic device 200. However, the battery charger 295 may also be provided external to the electronic device 200. The battery charger 295 may perform the operations discussed above (in relation to the battery charger described above).

[0091] Figure 7 An electronic device according to an exemplary embodiment is shown. Other embodiments and configurations may also be provided.

[0092] More specifically, Figure 7 ​System 300 is shown, including a processor 305, a power supply 310, and a memory 320 (which may be, for example, a random access memory). For example, processor 305 may include an arithmetic logic unit 312 and an internal cache memory 304. Processor 305 may perform the operations discussed above using instructions received (e.g., via a computer-readable medium).

[0093] System 300 may also include a graphical interface 330, a chipset 340, a cache memory 350, a network interface 360, and a wireless communication unit 370, which may be incorporated into the network interface. Alternatively or additionally, a communication unit 380 may be coupled to processor 305 and there may be a direct connection between memory 320 and processor 305.

[0094] Processor 305 may be a central processing unit, a microprocessor, or any other type of processing or computing circuit, and may be included on a chip die with all or any combination of the remaining features, or one or more of the remaining features may be electrically coupled to the microprocessor die via known connections and interfaces. In addition, the connections shown are merely illustrative, as other connections may exist between the depicted elements, or between multiple elements, for example depending on the chip platform, functionality, or application requirements.

[0095] In at least one embodiment, a computer readable medium (or machine readable medium) may store a program for controlling a circuit or logic unit of a battery charger. The program may be stored in a system memory, which may be internal or external to the electronic device, for example. In at least one embodiment, the program may be part of a control algorithm for controlling the operation of the battery charger.

[0096] The instructions or codes executed by the processor may be provided to the memory, for example, from a machine-readable medium, or provided to an external storage device via a remote connection (e.g., over a network via an antenna and / or a network interface) that provides access to one or more electronically readable media, etc. The machine-readable medium may include any mechanism that provides (i.e., stores and / or transmits) information in a machine (e.g., computer) readable form. For example, the machine-readable medium may include a random access memory (RAM), a read-only memory (ROM), a magnetic or optical storage medium, a flash memory storage device, an electrical, optical, acoustic or other form of propagation signal (e.g., a carrier wave, an infrared signal, a digital signal), etc. In alternative embodiments, hard-wired circuits may be used in place of or in combination with instructions or coding, and therefore, the embodiments are not limited to any specific combination of hardware circuitry and software instructions.

[0097] The program may include codes or instructions for executing any operations or functions performed in the embodiments previously discussed above.

[0098] Example 1 is an electronic device including a charger that determines a type of power source coupled to the charger and adjusts power from the power source based on the determined type of power source.

[0099] In Example 2, the subject matter of Example 1 can optionally include the charger changing an impedance of the power based on the determined power source type.

[0100] In Example 3, the subject matter of Example 1 can optionally include the charger performing power processing on the power based on the determined power source type.

[0101] In Example 4, the subject matter of Example 1 can optionally include the charger determining a specific mode of the charger.

[0102] In Example 5, the subject matter of Example 1 and Example 4 may optionally include that the specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

[0103] In Example 6, the subject matter of Examples 1 and 4 can optionally include the charger determining a specific mode of the charger based on the power demand.

[0104] In Example 7, the subject matter of Examples 1 and 4 may optionally include: the charger determining a specific mode of the charger based on a state of battery charging.

[0105] In Example 8, the subject matter of Example 1 can optionally include that the type of power source is a direct current (DC) power source or an alternative power source.

[0106] In Example 9, the subject matter of Examples 1 and 8 can optionally include that the alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source, or a fuel cell.

[0107] Example 10 is an electronic device including: a logic unit, at least a portion of which is hardware, the logic unit determines a type of power source, and adjusts power from the power source based on the determined type of power source.

[0108] In Example 11, the subject matter of Example 10 can optionally include the logic unit changing an impedance of the power based on the determined power source type.

[0109] In Example 12, the subject matter of Example 10 may optionally include the logic unit performing power processing of the power based on the determined power source type.

[0110] In Example 13, the subject matter of Example 10 may optionally include: the logic unit determining the specific mode.

[0111] In Example 14, the subject matter of Examples 10 and 13 may optionally include that the specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

[0112] In Example 15, the subject matter of Examples 10 and 13 may optionally include the logic unit determining the specific mode based on power demand.

[0113] In Example 16, the subject matter of Examples 10 and 13 may optionally include: the logic unit determining the specific mode based on a state of battery charging.

[0114] In Example 17, the subject matter of Example 10 can optionally include that the type of power source is a direct current (DC) power source or an alternative power source.

[0115] In Example 18, the subject matter of Examples 10 and 17 can optionally include that the alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source, or a fuel cell.

[0116] Example 19 is an electronic system including: a load, a processor for performing operations on the load, a battery port for accommodating a battery, and a charger that determines a power source type and adjusts power from the power source based on the determined power source type.

[0117] In Example 20, the subject matter of Example 19 can optionally include the charger providing power to the load.

[0118] In Example 21, the subject matter of Example 19 can optionally include: the charger providing power to the battery.

[0119] In Example 22, the subject matter of Example 19 can optionally include the charger changing an impedance of the power based on the determined power source type.

[0120] In Example 23, the subject matter of Example 19 can optionally include the charger performing power processing on the power based on the determined power source type.

[0121] In Example 24, the subject matter of Example 19 can optionally include the charger determining a specific mode of the charger.

[0122] In Example 25, the subject matter of Example 19 and Example 24 may optionally include: the specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

[0123] In Example 26, the subject matter of Examples 19 and 24 can optionally include the charger determining a specific mode of the charger based on the power demand.

[0124] In Example 27, the subject matter of Examples 19 and 24 may optionally include the charger determining a specific mode of the charger based on a state of battery charging.

[0125] In Example 28, the subject matter of Example 19 can optionally include: the type of power supply is a direct current (DC) power supply or an alternative power supply.

[0126] In Example 29, the subject matter of Examples 19 and 28 can optionally include: the alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source, or a fuel cell.

[0127] Example 30 is an electronic device comprising: a first module for determining a type of power source coupled to an electronic device; and a second module for adjusting power from the power source based on the determined type of power source.

[0128] In Example 31, the subject matter of Example 30 can optionally include the second module changing an impedance of the power based on the determined power source type.

[0129] In Example 32, the subject matter of Example 30 can optionally include the second module performing power processing of the power based on the determined power source type.

[0130] In Example 33, the subject matter of Example 30 may optionally include: the second module determines the specific mode.

[0131] In Example 34, the subject matter of Examples 30 and 33 may optionally include: the specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

[0132] In Example 35, the subject matter of Examples 30 and 33 may optionally include: the second module determining the specific mode based on the power demand.

[0133] In Example 36, the subject matter of Examples 30 and 33 may optionally include: the second module determining the specific mode based on a state of battery charging.

[0134] In Example 37, the subject matter of Example 30 can optionally include: the type of power supply is a direct current (DC) power supply or an alternative power supply.

[0135] In Example 38, the subject matter of Examples 30 and 37 can optionally include: the alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source, or a fuel cell.

[0136] Example 39 is a machine-readable medium comprising one or more instructions that, when executed, cause a device to perform one or more operations for: determining a power source type, and adjusting power from the power source based on the determined power source type.

[0137] In Example 40, the subject matter of Example 39 can optionally include the one or more instructions adjusting the power by changing an impedance of the power based on the determined power source type.

[0138] In Example 41, the subject matter of Example 39 may optionally include: the one or more instructions adjust the power by performing power processing on the power based on the determined power type.

[0139] In Example 42, the subject matter of Example 39 may optionally include: one or more instructions determining a specific mode when executed.

[0140] In Example 43, the subject matter of Example 39 and Example 42 may optionally include: the specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

[0141] In Example 44, the subject matter of Examples 39 and 42 may optionally include: the one or more instructions determining the particular mode based on the power demand.

[0142] In Example 45, the subject matter of Examples 39 and 42 may optionally include: one or more instructions determining the particular mode based on a state of battery charging.

[0143] In Example 46, the subject matter of Example 39 can optionally include: the type of power supply is a direct current (DC) power supply or an alternative power supply.

[0144] In Example 47, the subject matter of Examples 39 and 46 can optionally include: the alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source, or a fuel cell.

[0145] Example 48 is a method of an electronic device, comprising determining a type of power source coupled to the electronic device; and adjusting power from the power source based on the determined type of power source.

[0146] In Example 49, the subject matter of Example 48 can optionally include adjusting the power comprising changing an impedance of the power based on the determined power source type.

[0147] In Example 50, the subject matter of Example 48 can optionally include that adjusting the power comprises performing power processing on the power based on the determined power source type.

[0148] In Example 51, the subject matter of Example 48 can optionally include determining a specific mode of the charger.

[0149] In Example 52, the subject matter of Examples 48 and 51 may optionally include: the specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

[0150] In Example 53, the subject matter of Examples 48 and 51 may optionally include that determining the specific mode comprises determining the specific mode based on power demand.

[0151] In Example 54, the subject matter of Examples 48 and 51 may optionally include that determining the specific mode comprises determining the specific mode based on a state of battery charging.

[0152] In Example 55, the subject matter of Example 48 can optionally include: the type of power supply is a direct current (DC) power supply or an alternative power supply.

[0153] In Example 56, the subject matter of Examples 48 and 55 can optionally include: the alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source, or a fuel cell.

[0154] Any reference in this specification to "one embodiment," "an embodiment," "exemplary embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. These phrases appearing in multiple places in this specification do not necessarily all refer to the same embodiment. In addition, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the knowledge of those skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments of the embodiment.

[0155] Although the embodiments have been described with reference to a number of illustrative embodiments in the specification, it will be appreciated that many other modifications and embodiments that may be devised by those skilled in the art will fall within the spirit and scope of the principles of the present disclosure. More specifically, various changes and modifications may occur in the arrangement of the component parts and / or subject combination arrangements within the scope of the present disclosure, the drawings and the appended claims. In addition to changes and modifications in the component parts and / or arrangements, the use of alternatives will also be apparent to those skilled in the art.

Claims

1. An electronic device, comprising: A charger, the charger comprising a compensator and a power converter; wherein the charger determines a type of power source coupled to the charger and adjusts power from the power source using the power converter based on the determined type of power source; wherein the compensator receives an output voltage and an output current from the power converter; and The compensator adjusts a mode of the charger based on the output voltage and the output current.

2. The electronic device according to claim 1, wherein: The charger changes the impedance of the power based on the determined type of power source.

3. The electronic device according to claim 1, wherein: The charger performs power processing on the power based on the determined type of power source.

4. The electronic device according to claim 1, wherein: The charger determines a specific mode of the charger.

5. The electronic device according to claim 4, wherein: The specific mode is one of a maximum power point tracking (MPPT) mode, a maximum constant current tracking (MCCT) mode, and a voltage regulator mode.

6. The electronic device according to claim 4, wherein: The charger determines a particular mode of the charger based on power demand.

7. The electronic device according to claim 4, wherein: The charger determines a specific mode of the charger based on a state of battery charging.

8. The electronic device according to claim 1, wherein: The type of power supply is a direct current (DC) power supply or an alternative power supply.

9. The electronic device according to claim 8, wherein: The alternative power source is one of a solar power source, a mechanical power source, a photovoltaic power source, a thermal power source, a radio frequency power source, a vibration power source, a biomechanical power source or a fuel cell.

10. An electronic device comprising: a logic unit, at least a portion of which is hardware, the logic unit comprising a compensator and a power converter; wherein the logic unit determines a type of power source and uses the power converter to adjust power from the power source based on the determined type of power source; wherein the compensator receives an output voltage and an output current from the power converter; and The compensator adjusts a mode of the logic unit based on the output voltage and the output current.

11. The electronic device according to claim 10, wherein: The logic unit changes the impedance of the power based on the determined type of power source.

12. The electronic device according to claim 10, wherein: The logic unit performs power processing on the power based on the determined type of power source.

13. The electronic device according to claim 10, wherein: The logic unit determines a specific mode.

14. An electronic system comprising: load; a processor, the processor performing an operation on the load; a battery port, the battery port receiving a battery; as well as A charger, the charger comprising a compensator and a power converter; wherein the charger determines a type of power source and adjusts power from the power source using the power converter based on the determined type of power source; wherein the compensator receives an output voltage and an output current from the power converter; and The compensator adjusts a mode of the charger based on the output voltage and the output current.

15. The electronic system according to claim 14, wherein: The charger changes the impedance of the power based on the determined type of power source.

16. The electronic system according to claim 14, wherein: The charger performs power processing on the power based on the determined type of power source.

17. The electronic system according to claim 14, wherein: The charger determines a specific mode of the charger.

18. An electronic device comprising: a first module configured to determine a type of power source coupled to the electronic device; as well as a second module, the second module comprising a compensator and a power converter; wherein the second module uses the power converter to adjust power from the power source based on the determined type of the power source; wherein the compensator receives an output voltage and an output current from the power converter; and The compensator adjusts a mode of the electronic device based on the output voltage and the output current.

19. The electronic device according to claim 18, wherein: The second module changes an impedance of the power based on the determined type of power source.

20. The electronic device according to claim 18, wherein: The second module performs power processing on the power based on the determined type of power source.

21. A machine-readable medium comprising one or more instructions that, when executed, cause a device to perform one or more operations for: Determine the type of power supply, and conditioning power from the power source using a power converter based on the determined type of power source; receiving an output voltage and an output current from the power converter through a compensator; A mode of the device is adjusted by the compensator based on the output voltage and the output current.

22. The machine-readable medium of claim 21, wherein: The one or more instructions adjust the power by changing an impedance of the power based on the determined type of power source.

23. The machine-readable medium of claim 21, wherein: The one or more instructions adjust power by performing power processing on the power based on the determined type of power source.

24. A method for an electronic device, comprising: determining a type of power source coupled to the electronic device; as well as conditioning power from the power source using a power converter based on the determined type of power source; receiving an output voltage and an output current from the power converter through a compensator; A mode of the electronic device is adjusted by the compensator based on the output voltage and the output current.

25. The method according to claim 24, wherein: Adjusting the power includes changing an impedance of the power based on the determined type of power source.

26. The method according to claim 24, wherein: Adjusting the power includes performing power processing on the power based on the determined type of power source.

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