Power management device and method and low-power-consumption electronic equipment
By adopting power management devices in electronic devices and using the cooperation of low-power management circuits and power switch management modules, periodic switching of power modules is realized, solving the problem of high power consumption of standby circuits in the prior art, and realizing the Ultra-low power consumption standby effect.
Patent Information
- Application Number
- CN202411677467.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-02-25
AI Technical Summary
When existing electronic devices realize low-power standby, the main chip is still in power-on state, resulting in power consumption that cannot achieve ultra-low power consumption. Especially in high-process embedded chips, the power consumption of the standby circuit further increases, resulting in standby time. Greatly reduced.
Through a power management device, the device includes a power supply module, a low-power management circuit and a power switch management module. The low-power management circuit generates a low-power indication signal. The power switching management module switches the power supply module back and forth based on a preset switching cycle. Switching state, ultra-low power consumption standby is achieved through charging and discharging of capacitive circuits.
It realizes ultra-low power consumption of equipment standby, significantly reduces power consumption, extends standby time, and meets the low-power consumption needs of higher process requirements.
Smart Images
Figure CN119519361A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of power supply technology, and in particular to a power supply management device and method, and a low-power consumption electronic device. Background Art
[0002] As the world's requirements for green energy saving and environmental protection become increasingly higher, various daily electronic devices, such as TV remote controls, must have low power standby functions.
[0003] When existing electronic devices such as remote controllers achieve low-power standby, the main chip controls most circuits to be powered off and not work, thereby reducing the power consumption of the circuits. However, the main chip is still in a dormant state with power on, so as to receive the power-on command signal. Therefore, the continuous operation of the circuit still consumes a certain amount of power, and ultra-low power standby cannot be achieved. Especially in high-process embedded chips, the power consumption of the standby circuit will be further increased due to the process, resulting in a significant reduction in the standby time. Summary of the invention
[0004] The embodiments of the present disclosure at least provide a power management device and method, and a low-power electronic device, so as to achieve ultra-low power standby by periodically adjusting the power switch state.
[0005] In a first aspect, an embodiment of the present disclosure provides a power management device, comprising: a power module, a low power management circuit and a power switch management module electrically connected in sequence;
[0006] The low power consumption management circuit is used to generate a low power consumption indication signal and transmit the indication signal to the power switch management module;
[0007] The power switch management module is used to respond to the indication signal and switch the switch state of the power module back and forth based on a preset switch cycle, so as to achieve ultra-low power consumption standby by charging and discharging the capacitive circuit.
[0008] In a possible implementation, the power switch management module includes a power switch timer and a power switch management unit that are electrically connected; the power switch timer and the power switch management unit are both electrically connected to the power module, and the low power consumption management circuit is electrically connected to the power switch management unit;
[0009] The power switch management unit is used to generate a control signal for triggering the switch state of the power module in response to the indication signal, and to start the timing function of the power switch timer when turning on or off the power module based on the control signal;
[0010] The power switch timer is used to respond to the control signal and determine whether the first waiting time for turning on the power module is reached under the timing function, or to determine whether the second waiting time for turning off the power module is reached. The first waiting time and the second waiting time together constitute a preset switching cycle.
[0011] In a possible implementation manner, the power switch management unit is further used to:
[0012] When it is determined that the power switch timer reaches the first waiting time according to the first timing function started, switching the power module from the off state to the on state; and
[0013] When it is determined that the power switch timer reaches the second waiting time according to the activated second timing function, the power module is switched from the on state back to the off state.
[0014] In a possible implementation, the power switch management unit includes a state machine;
[0015] The state machine is configured to generate a first control signal for indicating power off based on the indication signal; turn off the power module based on the first control signal, and start the power switch timer to turn on the first timing function of the power module;
[0016] The power switch timer is used to respond to the first control signal, start the first timing function, and trigger a first request signal for indicating power on after the first waiting time is reached. The first request signal is used to instruct the power module to switch from an off state to an on state.
[0017] In one possible implementation,
[0018] The state machine is further configured to generate a second control signal for indicating power on based on the first request signal; turn on the power module based on the second control signal, and start the power switch timer to turn off the second timing function of the power module;
[0019] The power switch timer is used to respond to the second control signal, start the second timing function, and trigger the second request signal for indicating power off after the second waiting time is reached. The second request signal is used to instruct the power module to switch from the on state to the off state.
[0020] In one possible implementation,
[0021] The state machine is further used to generate a third control signal for indicating power off based on the second request signal, and the third control signal is used to turn off the power module and start the first timing function of the power switch timer to turn on the power module.
[0022] In a possible implementation, the power module includes a voltage conversion circuit;
[0023] The voltage conversion circuit is used to access an external voltage and perform voltage conversion on the external voltage to obtain a converted voltage.
[0024] In a possible implementation manner, the voltage conversion circuit is electrically connected to the low power consumption management circuit;
[0025] The voltage conversion circuit is used to output the converted voltage to the low power management circuit or other core circuits in response to the power module being in an on state.
[0026] In a second aspect, the present disclosure further provides a power management method, using the power management device described in any one of the first aspect and various embodiments thereof, the method comprising:
[0027] Generate a low power consumption indication signal through a low power consumption management circuit, and transmit the indication signal to a power switch management module;
[0028] The power switch management module responds to the indication signal and switches the switch state of the power module back and forth based on a preset switch cycle, so as to realize ultra-low power consumption standby by charging and discharging the capacitive circuit.
[0029] In a third aspect, the present disclosure further provides a low-power electronic device, comprising a power management device as described in any one of the first aspect and various embodiments thereof.
[0030] The above-mentioned power management device and method, as well as low-power electronic equipment, are adopted, and its power management device includes a power module, a low-power management circuit and a power switch management module which are electrically connected in sequence. When the low-power management circuit generates a low-power indication signal, the power switch management module can respond to this indication signal and switch the switching state of the power module back and forth based on a preset switching cycle. That is, the applied capacitive circuit can be charged and discharged through the periodic switching of the power module, and the power supply needs to be turned on only during a short charging period, while the power released by the capacitive circuit is consumed during the discharge period. The overall power consumption of the power supply is significantly reduced, thereby realizing ultra-low power consumption equipment standby.
[0031] Other advantages of the present disclosure will be explained in more detail in conjunction with the following description and drawings.
[0032] It should be understood that the above description is only an overview of the technical solution of the present disclosure, so that the technical means of the present disclosure can be generally understood and then implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are specifically described below with examples. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used together with the specification to illustrate the technical solutions of the present disclosure. It should be understood that the drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope of protection. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. Moreover, the same reference numerals are used to represent the same components throughout the drawings. In the drawings:
[0034] Figure 1 A schematic diagram of a power management device provided by an embodiment of the present disclosure is shown;
[0035] Figure 2 A schematic diagram of an application of a power management device provided by an embodiment of the present disclosure is shown;
[0036] Figure 3 An application flow chart of a power management device provided by an embodiment of the present disclosure is shown;
[0037] Figure 4 A flow chart of a power management method provided by an embodiment of the present disclosure is shown.
[0038] Illustration Description:
[0039] 11-power module; 22-low power management circuit; 33-voltage switch management module; 111-voltage conversion circuit; 331-power switch timer; 332-voltage switch management unit. DETAILED DESCRIPTION
[0040] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0041] In the description of the embodiments of the present disclosure, it should be understood that terms such as "including" or "having" are intended to indicate the presence of the disclosed features, numbers, steps, behaviors, components, parts, or a combination thereof in the specification, and do not exclude the possibility of the presence of one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof.
[0042] Unless otherwise specified, “ / ” means or. For example, A / B can mean A or B. The “and / or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.
[0043] The terms "first", "second", etc. are used only to distinguish the same or similar technical features for the convenience of description, and should not be understood as indicating or implying the relative importance or quantity of these technical features. Thus, the features defined by "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the term "plurality" means two or more than two.
[0044] According to research, when existing electronic devices such as remote controllers achieve low-power standby, the main chip controls most circuits to be powered off and not work, thereby reducing the power consumption of the circuits. However, the main chip is still in a dormant state with power on, so as to receive the power-on command signal. Therefore, the continuous operation of the circuit still consumes a certain amount of power, and ultra-low power standby cannot be achieved. Especially in high-process embedded chips, the power consumption of the standby circuit will be further increased due to the process, resulting in a significant reduction in the standby time.
[0045] In order to at least partially solve one or more of the above problems and other potential problems, the present disclosure at least provides a power management device and method, and a low-power electronic device to achieve ultra-low power standby by periodically adjusting the power switch state.
[0046] In order to facilitate understanding of this embodiment, the power management device provided by the embodiment of the present disclosure is first described in detail. Figure 1 , which shows a schematic diagram of a power management device provided by an embodiment of the present disclosure, the device mainly comprises a power module 11, a low power management circuit 22 and a power switch management module 33 which are electrically connected in sequence;
[0047] The low power management circuit 22 is used to generate a low power indication signal and transmit the indication signal to the power switch management module 33;
[0048] The power switch management module 33 is used to respond to the indication signal and switch the switch state of the power module 11 back and forth based on a preset switch cycle to achieve ultra-low power standby by charging and discharging the capacitive circuit.
[0049] In order to facilitate the understanding of the power management device provided by the embodiment of the present disclosure, the application scenario of the device is briefly described below. The power management device here can be applied to any electronic device, such as a TV remote control, especially an electronic device with ultra-low power consumption requirements, such as a system-on-chip (SoC) with a process of less than 40 nanometers (nm), which requires an ultra-low power consumption power management strategy. In addition, it can also be any other related electronic device that requires power management. The embodiment of the present disclosure does not make specific limitations here. Considering the wide application of TV remote controls, the following examples are mostly used as examples of electronic devices such as remote controls.
[0050] In order to meet the low power consumption requirements, the relevant technology can be realized by setting up a low power circuit to trigger the power supply. For example, when the device does not work for a certain period of time, the low power circuit is started to make the power supply sufficient to support the standby state of the device. However, during the operation of the entire low power circuit, the wake-up function needs to be retained at all times, and the long-term retention of this function will continue to consume power, thus failing to meet the ultra-low power device standby requirements such as higher process requirements.
[0051] In order to solve the above problems, the embodiment of the present disclosure provides a power management device that performs periodic switch state switching through the power switch management module 33 to achieve ultra-low power consumption standby.
[0052] The low power management circuit 22 in the power management device here is mainly used to generate a low power indication signal so that the power switch management module 33 can implement periodic switching of the switch state of the power module 11 under the indication signal.
[0053] The low power indication signal may be automatically generated. For example, when it is determined that the remote control is in a standby state without user operation for a long time, the main chip may indicate the standby state to the low power management circuit 22 so as to generate a low power indication signal. In addition, in practical applications, the indication signal here may also be transmitted by other chips (such as the main chip). For example, when it is determined that the remote control is in a standby state, the main chip may generate a low power indication signal and send it to the low power management circuit 22.
[0054] In addition, based on the connection relationship between the power switch management module 33 and the low power management circuit 22, the power switch management module 33 can respond to the indication signal and can switch the switch state of the power module 11 back and forth based on a preset switching cycle.
[0055] The preset switching cycle here includes a first waiting time for turning on the power module 11 and a second waiting time for turning off the power module 11, that is, the two waiting times (the first waiting time and the second waiting time) together constitute a preset switching cycle, and each preset switching cycle corresponds to a round of switching state.
[0056] In actual applications, once the power switch management module 33 responds to the low power indication signal, the power module 11 can switch the switch state for multiple rounds, and in each round of the switch state, a first waiting time for turning on the power module 11 is set, and the power is completely cut off during the first waiting time. In this way, the longer the first waiting time means the less power consumption in the whole round, so the longer the standby time, the more prominent the power saving performance.
[0057] The second waiting time is set to better ensure that the capacitive circuits and components of the electronic device are fully charged, while during the first waiting time, the continuous discharge of the capacitive circuits and components is sufficient to support the standby operation of the entire device.
[0058] It should be noted that the first waiting time should not be set too long or too short, and the same is true for the second waiting time. The first waiting time here is usually set to be smaller than the second waiting time. For example, the first waiting time is set to tens of seconds, while the second waiting time is set to tens of microseconds. It can be determined in combination with different application devices and actual needs of users, and is not specifically limited here.
[0059] In order to better implement the periodic switching of the power module 11, the power switch management module 33 in the embodiment of the present disclosure includes a power switch timer 331 and a power switch management unit 332 electrically connected, such as Figure 1 As shown, where:
[0060] The power switch management unit 332 is used to generate a control signal for triggering the switch state of the power module 11 in response to the indication signal, and to start the timing function of the power switch timer 331 when turning on or off the power module 11 based on the control signal;
[0061] The power switch timer 331 is used to respond to the control signal and determine whether the first waiting time for turning on the power module 11 is reached under the timing function, or determine whether the second waiting time for turning off the power module 11 is reached.
[0062] In the embodiment of the present disclosure, if the power switch management unit 332 determines that the power switch timer 331 reaches the first waiting time according to the first timing function started, the power module 11 is switched from the off state to the on state; if the power switch management unit 332 determines that the power switch timer 331 reaches the second waiting time according to the second timing function started, the power module 11 is switched back from the on state to the off state.
[0063] In summary, based on the coordinated setting of the power switch timer 331 and the power switch management unit 332, the periodic switching of the power module 11 can be realized. In practical applications, once the device enters the standby state, the power switch management unit 332 can respond to the low power indication signal issued by the low power management circuit 22, and then cooperate with the timing function of the power switch timer 331 to realize the opening of a specific duration or the closing of a specific duration, and switch back and forth between opening and closing, thereby realizing ultra-low power consumption device standby.
[0064] In order to further understand the logical implementation process of the above power switch management, we will now combine Figure 2 Provide an example.
[0065] like Figure 2 As shown, the power switch timer 331 and the power switch management unit 332 are both electrically connected to the power module 11 , and the low power management circuit 22 is electrically connected to the power switch management unit 332 .
[0066] The low power management circuit 22 here generates a low power indication signal C. After receiving the low power indication signal C generated by the low power management circuit 22, the power switch management unit 332 outputs the power module 11 control signal D to turn off the power module 11. At this time, the power switch timer 331 will start timing, and trigger the power on request signal A after the timing is reached; after receiving the event trigger signal A, the power switch management unit 332 will immediately output the power module 11 control signal D to turn on the power module 11. At this time, the power switch timer 331 will start timing, and trigger the power off request signal B after the timing is reached.
[0067] After receiving the event trigger signal B, the power switch management unit 332 will immediately output the power module 11 control signal D to turn off the power module 11. In this way, in the standby state, the ultra-low power standby is achieved by repeatedly switching on and off the power module 11 to charge and discharge the circuit.
[0068] It can be known that the power module 11 in the embodiment of the present disclosure is used to receive the power module 11 control signal from the power switch management unit 332. The input of the power module 11 comes from an external power supply and is output to the chip core or the low power management circuit 22 after voltage conversion. The power switch management unit 332 is responsible for managing the switch of the power module 11, that is, whether the power module 11 needs to output the voltage required by the core.
[0069] The power switch timer 331 here has an input of the output signal D of the power switch management unit 332. The timer is started according to the instruction of the power switch management unit 332. After reaching the on / off time, the on / off timing achievement indication signals A and B are output respectively. The on time (corresponding to the first waiting time) and the off time (corresponding to the second waiting time) can be preset by the system according to the actual test situation. The power switch management unit 332 has an input of the low power indication signal C output by the low power management circuit 22, and the on / off timing achievement indication signals A and B output by the power switch timer 331. The power module 11 control signal D is generated according to these three signals.
[0070] The low power management circuit 22 has a system low power command as input, and outputs a low power indication signal C after receiving the low power command issued by the system. The power switch management unit 332 performs a power switch control operation after receiving the low power indication signal C.
[0071] It should be noted that in the embodiment of the present disclosure, in order to ensure the normal wake-up of related circuits in the standby state, the power supply of the low power management circuit 22 can be provided by the power module 11, and the operating voltage of the low power management circuit 22 needs to be ensured to be within the normal operating voltage range.
[0072] The power module 11 in the embodiment of the present disclosure mainly includes a voltage conversion circuit 111, such as Figure 1 As shown, the voltage conversion circuit 111 is used to access an external voltage and perform voltage conversion on the external voltage to obtain a converted voltage. In this way, through the electrical connection between the voltage conversion circuit 111 and the low power management circuit 22, the voltage conversion circuit 111 can output the converted voltage to the low power management circuit 22 or other core circuits.
[0073] In practical applications, the power switch management unit 332 mainly includes a state machine, which is composed of a state register and a combinational logic circuit. It can transfer states according to a preset state based on a control signal. What is implemented here is the switching of the switch state of the power module 11.
[0074] In order to further explain the whole process of state switching, the whole process of state switching is specifically described in combination with the state machine and the power switch timer 331.
[0075] First, the state machine generates a first control signal for indicating that the power is turned off based on the low power indication signal, turns off the power module 11 based on the first control signal, and starts the power switch timer 331 to turn on the first timing function of the power module 11; the power switch timer 331 starts the first timing function when successfully responding to the first control signal, and triggers the first request signal for indicating that the power is turned on after reaching the first waiting time, and the first request signal is used to instruct the power module 11 to switch from the off state to the on state.
[0076] Then, the state machine generates a second control signal for indicating that the power is turned on based on the first request signal, turns on the power module 11 based on the second control signal, and starts the second timing function of the power switch timer 331 to turn off the power module 11; when the power switch timer 331 successfully responds to the second control signal, it starts the second timing function, and triggers the second request signal for indicating that the power is turned off after the second waiting time is reached, and the second request signal is used to instruct the power module 11 to switch from the on state to the off state.
[0077] In addition, the state machine can also generate a third control signal for indicating power off based on the second request signal, and the third control signal is used to turn off the power module 11 and start the first timing function of the power switch timer 331 to turn on the power module 11. The third control signal here has the same function as the first control signal, and is a control signal generated at a different time. The "third" here is only used to distinguish different control signals generated at different times, and the control properties of the control signal itself are the same.
[0078] It should be noted that the power module 11 forms a preset switching cycle from the initial off state, to the on state after the first waiting time, and then to the off state after the second waiting time. The power switch control is reciprocated according to the switching cycle until the low power management circuit 22 no longer indicates to enter the standby state, or indicates to enter the normal use state. The above control process is stopped, which significantly reduces power consumption, thereby significantly improving the standby time and meeting the requirements of ultra-low power consumption equipment.
[0079] For the specific settings of the first waiting time and the second waiting time, please refer to the above description and will not be elaborated here.
[0080] In order to facilitate understanding of the power management device provided by the embodiment of the present disclosure, the following can be combined with Figure 3 The specific working process of the power management device is further described as follows:
[0081] like Figure 3As shown, when the low power management circuit generates a low power indication signal, the power switch management unit can be triggered to turn off the power module. At this time, the timer is started, and it is determined whether the first threshold is reached (corresponding to turning on the power module after a first waiting period). When it is determined that the first threshold is reached, the power switch management unit can be triggered to turn on the power module, and it is determined whether the timer reaches the second threshold (corresponding to turning off the power module after a second waiting period), and so on and so forth, thereby achieving an ultra-low power consumption device standby state.
[0082] Based on the power management device provided in the above embodiments, the embodiments of the present disclosure also provide a low-power electronic device, which can be any device with low power consumption requirements, such as various home appliance remote controls, and is not specifically limited here.
[0083] In the description of this specification, the description with reference to the terms "some possible embodiments", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure, and the above terms do not necessarily represent the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0084] Based on the same inventive concept, a power management method corresponding to the power management device is also provided in the embodiment of the present disclosure. Since the principle of solving the problem by the method in the embodiment of the present disclosure is similar to the above-mentioned device in the embodiment of the present disclosure, the implementation of the device can refer to the implementation of the device, and the repeated parts will not be repeated.
[0085] See also Figure 4 , which shows a flow chart of a power management method provided by an embodiment of the present disclosure, the method includes the following steps S401-S402:
[0086] S401: Generate a low power consumption indication signal through a low power consumption management circuit, and transmit the indication signal to a power switch management module;
[0087] S402: Responding to the indication signal through the power switch management module, the switch state of the power module is switched back and forth based on a preset switch cycle, so as to realize ultra-low power consumption standby by charging and discharging the capacitive circuit.
[0088] In a possible implementation, the power switch management module includes a power switch timer and a power switch management unit that are electrically connected; the power switch timer and the power switch management unit are both electrically connected to the power module, and the low power management circuit is electrically connected to the power switch management unit; the method includes:
[0089] Responding to the indication signal, the power switch management unit generates a control signal for triggering the switch state of the power module, and, when the power module is turned on or off based on the control signal, starts the timing function of the power switch timer;
[0090] The power switch timer responds to the control signal and determines whether the first waiting time for turning on the power module has been reached under the timing function, or whether the second waiting time for turning off the power module has been reached. The first waiting time and the second waiting time together constitute a preset switching cycle.
[0091] In one possible implementation, the method includes:
[0092] When the power switch management unit determines that the power switch timer reaches the first waiting time according to the first timing function that is started, the power module is switched from the off state to the on state; and when it is determined that the power switch timer reaches the second waiting time according to the second timing function that is started, the power module is switched from the on state back to the off state.
[0093] In a possible implementation, the power switch management unit includes a state machine; and the method includes:
[0094] Generate a first control signal for indicating power off based on the indication signal through the state machine; turn off the power module based on the first control signal, and start the power switch timer to turn on the first timing function of the power module;
[0095] The power switch timer responds to the first control signal, starts the first timing function, and triggers the first request signal for indicating power on after the first waiting time is reached. The first request signal is used to instruct the power module to switch from the off state to the on state.
[0096] In one possible implementation, the method includes:
[0097] Generate a second control signal for indicating power on based on the first request signal through the state machine; turn on the power module based on the second control signal, and start the power switch timer to turn off the second timing function of the power module;
[0098] The power switch timer responds to the second control signal, starts the second timing function, and triggers a second request signal for indicating power off after the second waiting time is reached. The second request signal is used to instruct the power module to switch from the on state to the off state.
[0099] In one possible implementation, the method includes:
[0100] A third control signal for instructing power off is generated by the state machine based on the second request signal. The third control signal is used to turn off the power module and start the power switch timer to turn on the first timing function of the power module.
[0101] In a possible implementation, the power module includes a voltage conversion circuit; and the method includes:
[0102] An external voltage is connected through a voltage conversion circuit, and voltage conversion is performed on the external voltage to obtain a converted voltage.
[0103] In a possible implementation, the voltage conversion circuit is electrically connected to the low power consumption management circuit; the method includes:
[0104] In response to the power module being in an on state, the voltage conversion circuit outputs the converted voltage to the low power management circuit or other core circuits.
[0105] Each embodiment in the present disclosure is described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and computer-readable storage medium embodiments, since they are basically similar to the method embodiments, their descriptions are simplified, and the relevant parts can be referred to the partial description of the method embodiments.
[0106] The apparatus, equipment and computer-readable storage medium provided in the embodiments of the present disclosure correspond one-to-one to the method. Therefore, the apparatus, equipment and computer-readable storage medium also have similar beneficial technical effects as the corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the apparatus, equipment and computer-readable storage medium will not be repeated here.
[0107] It should be understood by those skilled in the art that the embodiments of the present disclosure can be implemented in the form of methods and apparatus (devices or systems), or computer-readable storage media. Therefore, the present disclosure can be implemented in a complete hardware implementation, a complete software implementation, or an implementation that combines software and hardware. Moreover, the present disclosure can be implemented in the form of a computer-readable storage medium implemented on one or more computer-usable storage media (including but not limited to disk storage, read-only compact disk storage (CD-ROM), optical storage, etc.) containing computer-usable program code.
[0108] The present disclosure is described with reference to the flowchart and / or block diagram of the method, device (equipment or system) and computer-readable storage medium according to the embodiment of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, and the combination of the process and / or box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.
[0109] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device, wherein the instruction device implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.
[0110] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.
[0111] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.
[0112] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash memory (Flash RAM). The memory is an example of a computer-readable medium.
[0113] Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be achieved by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer-readable storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory, read-only memory, electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. In addition, although the operations of the disclosed method are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in this specific order, or that all the operations shown must be performed to achieve the desired results. In addition, some steps can be omitted, multiple steps can be combined into one step, and / or one step can be decomposed into multiple sub-steps.
[0114] Although the spirit and principle of the present disclosure have been described above with reference to several specific embodiments, it should be understood that the present disclosure is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined. The present disclosure is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims.
Claims
1. A power management device, characterized in that: include: A power module, a low power management circuit and a power switch management module electrically connected in sequence; The low power consumption management circuit is used to generate a low power consumption indication signal and transmit the indication signal to the power switch management module; The power switch management module is used to respond to the indication signal and switch the switch state of the power module back and forth based on a preset switch cycle, so as to achieve ultra-low power consumption standby by charging and discharging the capacitive circuit.
2. The device according to claim 1, characterized in that The power switch management module includes a power switch timer and a power switch management unit which are electrically connected; the power switch timer and the power switch management unit are both electrically connected to the power module, and the low power consumption management circuit is electrically connected to the power switch management unit; The power switch management unit is used to generate a control signal for triggering the switch state of the power module in response to the indication signal, and to start the timing function of the power switch timer when turning on or off the power module based on the control signal; The power switch timer is used to respond to the control signal and determine whether the first waiting time for turning on the power module is reached under the timing function, or to determine whether the second waiting time for turning off the power module is reached. The first waiting time and the second waiting time together constitute a preset switching cycle.
3. The device according to claim 2, characterized in that The power switch management unit is further used for: When it is determined that the power switch timer reaches the first waiting time according to the first timing function started, switching the power module from the off state to the on state; and When it is determined that the power switch timer reaches the second waiting time according to the activated second timing function, the power module is switched from the on state back to the off state.
4. The device according to claim 2 or 3, characterized in that The power switch management unit includes a state machine; The state machine is configured to generate a first control signal for indicating power off based on the indication signal; turn off the power module based on the first control signal, and start the power switch timer to turn on the first timing function of the power module; The power switch timer is used to respond to the first control signal, start the first timing function, and trigger a first request signal for indicating power on after the first waiting time is reached. The first request signal is used to instruct the power module to switch from an off state to an on state.
5. The device according to claim 4, characterized in that The state machine is further configured to generate a second control signal for indicating power on based on the first request signal; turn on the power module based on the second control signal, and start the power switch timer to turn off the second timing function of the power module; The power switch timer is used to respond to the second control signal, start the second timing function, and trigger the second request signal for indicating power off after the second waiting time is reached. The second request signal is used to instruct the power module to switch from the on state to the off state.
6. The device according to claim 5, characterized in that The state machine is further used to generate a third control signal for indicating power off based on the second request signal, and the third control signal is used to turn off the power module and start the first timing function of the power switch timer to turn on the power module.
7. The device according to any one of claims 1 to 3, characterized in that The power module includes a voltage conversion circuit; The voltage conversion circuit is used to access an external voltage and perform voltage conversion on the external voltage to obtain a converted voltage.
8. The device according to claim 7, characterized in that The voltage conversion circuit is electrically connected to the low power consumption management circuit; The voltage conversion circuit is used to output the converted voltage to the low power management circuit or other core circuits in response to the power module being in an on state.
9. A power management method, characterized in that: Using the power management device according to any one of claims 1 to 8, the method comprises: Generate a low power consumption indication signal through a low power consumption management circuit, and transmit the indication signal to a power switch management module; The power switch management module responds to the indication signal and switches the switch state of the power module back and forth based on a preset switch cycle, so as to realize ultra-low power consumption standby by charging and discharging the capacitive circuit.
10. A low-power electronic device, characterized in that: A power management device comprising any one of claims 1 to 8.