CN115986902A - Power saving device and electronic equipment - Google Patents
Power saving device and electronic equipment Download PDFInfo
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- CN115986902A CN115986902A CN202211663674.0A CN202211663674A CN115986902A CN 115986902 A CN115986902 A CN 115986902A CN 202211663674 A CN202211663674 A CN 202211663674A CN 115986902 A CN115986902 A CN 115986902A
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Abstract
The invention provides a power saving device and an electronic device, comprising: the system comprises an automatic control module, a voltage conversion module and an embedded control module which are electrically connected with each other; the embedded control module is configured to provide a first electric signal to the self-locking control module when receiving a shutdown signal, so that the self-locking control module can control the low-voltage-difference power supply of the voltage conversion module to be kept on, and the voltage reduction switch power supply is kept off, and the problems that in the prior art, an electronic device provided with an energy storage unit is in a shutdown state and consumes a large amount of power and a large amount of current are solved.
Description
Technical Field
The present invention relates to the field of electronic power, and in particular, to a power saving device and an electronic apparatus.
Background
At present, mobile electronic devices on the market include mobile phones, notebooks, tablet computers, POS machines and the like, all have built-in batteries, and as long as the batteries are in the electronic devices, there will be microcirculation of circuits, so that the electric quantity will still be lost, specifically, when the electronic devices are in a shutdown state, the power consumption current of the batteries is in a milliampere (mA) level, and the power consumption current is large.
In view of this, the present application is presented.
Disclosure of Invention
The invention discloses a power saving device and electronic equipment, and aims to solve the problem that the electronic equipment provided with an energy storage unit in the prior art is in a shutdown state and consumes a large amount of current.
A first embodiment of the present invention provides a power saving device, including: the system comprises an automatic lock control module, a voltage conversion module and an embedded control module which are electrically connected with each other;
the embedded control module is configured to provide a first electric signal to the self-locking control module when receiving a shutdown signal, so that the self-locking control module can control the low-dropout power supply of the voltage conversion module to be kept on and the step-down switch power supply to be kept off.
Preferably, the input end of the voltage conversion module is electrically connected with a power supply;
the low-dropout power supply of the voltage conversion module is configured to provide an auxiliary voltage to the self-locking control module when a shutdown signal is received.
Preferably, the step-down switching power supply of the voltage conversion module is configured to provide an operating voltage to the self-locking control module and the embedded control module when the electronic device is operated.
Preferably, the self-locking control module comprises a starting-up input logic unit and a self-locking logic input unit;
the startup input logic unit is configured to provide a second electric signal to the buck switching power supply when a startup signal is received, so that the buck switching power supply provides operating voltage to the self-locking control module and the embedded control module;
the self-locking logic input unit is configured to receive a self-locking signal of the embedded control module so as to continuously provide a second electric signal to the buck switching power supply.
Preferably, the embedded control module comprises a startup output logic unit and a self-locking logic output unit;
the power-on output logic unit is configured to receive a fourth electric signal of the power-on input logic unit and control the electronic equipment to realize power-on based on the fourth electric signal;
the self-locking logic output unit is configured to provide a self-locking signal to the self-locking logic input unit after the step-down switching power supply provides the operating voltage, so that the self-locking logic input unit can control the step-down switching power supply to continuously provide the operating voltage.
Preferably, when the embedded control module receives a shutdown signal, the self-locking logic output unit provides a first electrical signal to the self-locking logic input unit, so that the self-locking logic input unit can control the step-down switching power supply to stop providing the operating voltage.
A second embodiment of the present invention provides an electronic device, including the power saving device as described in any one of the above.
Based on the power saving device and the electronic equipment provided by the invention, the power saving device is provided with the self-locking control module, the voltage conversion module and the embedded control module which are electrically connected with each other, wherein the embedded control module provides a first electric signal to the self-locking control module by receiving a shutdown signal of a physical key or a shutdown signal of software, so that the self-locking control module can control a low-voltage-difference power supply of the voltage conversion module to be kept on and a voltage-reducing switch power supply to be kept off, the problems of larger power consumption current when the electronic equipment provided with an energy storage unit is in a shutdown state in the prior art are solved, and meanwhile, the normal power supply of the electronic equipment in the operation process can be ensured.
Drawings
Fig. 1 is a block diagram of a power saving device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at ...or "when ...or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
In the embodiments, the references to "first \ second" are merely to distinguish similar objects and do not represent a specific ordering for the objects, and it is to be understood that "first \ second" may be interchanged with a specific order or sequence, where permitted. It should be understood that "first \ second" distinct objects may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced in sequences other than those illustrated or described herein.
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
The invention discloses a power saving device and electronic equipment, and aims to solve the problem that the electronic equipment provided with an energy storage unit in the prior art is in a shutdown state and consumes a large amount of current.
Referring to fig. 1, a power saving device according to a first embodiment of the present invention includes: a self-locking control module 11, a voltage conversion module 10 and an embedded control module 12 which are electrically connected with each other;
the embedded control module 12 is configured to provide a first electrical signal to the self-lock control module 11 when receiving a shutdown signal, so that the self-lock control module 11 can control the low-dropout power supply 101 of the voltage conversion module 10 to be kept on, and the step-down switching power supply 102 to be kept off, thereby ensuring low power consumption of the system and correctly receiving a startup signal.
It should be noted that, in the existing electronic devices, for example, a notebook computer, a tablet computer, a smart phone, a smart watch, a POS machine, or other intelligent terminals, batteries are disposed inside the electronic devices, so that even when the electronic devices are in a power-off state, micro-cycles of circuits still occur, and thus power consumption is still lost.
In this embodiment, configured with embedded control module 12, it can be the singlechip of STM32 series, and it can receive the shutdown signal of electronic equipment physical button or the shutdown signal of software, and it can be based on the shutdown signal to self-locking control module 11 provides first electric signal (for example, low level signal), so that self-locking control module 11 can control buck switch power supply 102 keeps closing, has solved that the electronic equipment that disposes the energy storage unit among the prior art is in the shutdown state, and the great problem of power consumption electric current, and wherein, buck switch power supply 102 is V3P3A, and it is used for providing rated operating voltage to electronic equipment, and low dropout power supply 101 is V3P3_ LDO, and this voltage plays the auxiliary role, and specifically, in this embodiment, low dropout power supply 101 can be in the on state all the time, guarantees that the system low-power consumption can correctly receive the startup signal.
In one possible embodiment of the present invention, the input terminal of the voltage conversion module 10 is electrically connected to a power supply;
the low dropout power supply 101 of the voltage conversion module 10 is configured to provide an auxiliary voltage to the autonomous control module 11 upon receiving a shutdown signal.
It should be noted that the power source (or the energy storage unit or the battery) is the source of the step-down switching power supply 102 and the low dropout power supply 101, wherein the voltage conversion module 10 can be turned on and turned off based on the electrical signal of the self-locking control module 11, in this embodiment, when receiving the shutdown control signal, the auxiliary voltage is provided to the self-locking control module 11, so that the self-locking control module 11 can receive the next startup signal, of course, the auxiliary voltage can also be provided to other components of the electronic device (as shown in the area 1 of fig. 1), and this is not limited specifically here.
In one possible embodiment of the present invention, the buck switching power supply 102 of the voltage conversion module 10 is configured to provide an operating voltage to the self-lock control module 11 and the embedded control module 12 when the electronic device is operating.
It should be noted that, in this embodiment, the buck switching power supply 102 is configured to provide a rated voltage to the self-locking control module 11 and the embedded control module 12 inside the electronic device when the electronic device is turned on (which includes receiving a power-on signal and performing normal operation), and of course, the buck switching power supply 102 also provides a rated voltage to other parts of the electronic component, so that the electronic device can perform normal operation.
In one possible embodiment of the present invention, the self-locking control module 11 includes a power-on input logic unit 111 and a self-locking logic input unit 112;
the power-on input logic unit 111 is configured to provide a second electrical signal to the buck switching power supply 102 when receiving a power-on signal, so that the buck switching power supply 102 provides an operating voltage to the autonomous control module 11 and the embedded control module 12;
the self-locking logic input unit 112 is configured to receive a self-locking signal of the embedded control module 12 to continuously provide a second electrical signal to the buck switching power supply 102.
It should be noted that the power-on input logic unit 111 is configured to receive a power-on signal, where the power-on signal may be a low-level signal received when a physical key is pressed, specifically, in this embodiment, the power-on signal may be a pulse low-level period, and in the pulse low-level period, the power-on signal is configured to turn on the buck switching power supply 102V3P3A, which is used to ensure normal operation of the autonomous control module 11 and the embedded control module 12;
the self-locking logic input unit 112 is configured to receive a self-locking signal generated by the embedded control module 12 when the power supply is turned on, so as to continuously provide the second electrical signal to the buck switching power supply 102, so that the buck switching power supply 102 can continuously provide the operating voltage to the electronic device.
In a possible embodiment of the present invention, the embedded control module 12 includes a power-on output logic unit 121 and a self-locking logic output unit 122;
the power-on output logic unit 121 is configured to receive the fourth electrical signal of the power-on input logic unit 111, and control the electronic device to implement power on based on the fourth electrical signal;
the latching logic output unit 122 is configured to provide a latching signal to the latching logic input unit 112 after the buck switching power supply 102 provides the operating voltage, so that the latching logic input unit 112 can control the buck switching power supply 102 to continuously provide the operating voltage.
It should be noted that the power-on output logic unit 121 is configured to receive feedback of the power-on input logic unit 111 based on the power-on signal, specifically, in this embodiment, when the power-on input logic unit receives a low level period of the pulse, the power-on input logic unit generates a feedback signal to the power-on output logic unit 121, so that the power-on output logic unit 121 provides a fourth electrical signal to control the electronic device to implement power on.
In one possible embodiment of the present invention, when the embedded control module 12 receives a shutdown signal, the self-locking logic output unit 122 provides a first electrical signal to the self-locking logic input unit 112, so that the self-locking logic input unit 112 can control the buck switching power supply 102 to stop providing the operating voltage.
Referring to fig. 1, the following explains the working procedure of the present invention in detail:
the low dropout power supply 101 in the voltage conversion module 10 provides basic power supply for the whole power saving circuit, wherein VBATA (1) supplies power to the battery, which is the source of the low dropout power supply 101 of the V3P3_ LDO (2), the power supply range is shown in a dotted line box in the area, and the voltage of the V3P3_ LDO (2) plays an auxiliary role; meanwhile, VBATA (1) supplies power to a battery, and is also the source of voltage 3P3A (5), and the voltage 3P3A (5) plays a key role in starting and running of the system.
A. When the LOCK is started, a PWRBTN (3) signal of the start input logic unit 111 in the self-LOCK control module 11 inputs a low pulse, during a low level period of the pulse, the start input logic enables a V3P3A _ EN (4) signal to output a high level, so that the voltage of the buck switch POWER supply 1023p3a (5) in the voltage conversion module 10 is turned on, and the voltage of the 3p3a (5) is supplied to the embedded control module 12 and starts to work, the auto-LOCK output logic unit in the embedded control module 12 judges that the signal is the start logic by detecting a POWER _ STATE (6) signal, outputs an EC _ PWR _ LOCK (7) signal as a high level to LOCK a V3P3A _ EN (4) signal of the auto-LOCK input logic unit of the self-LOCK control module 11 as a high level, and ensures that the voltage of the buck switch POWER supply 3p3a (5) in the voltage conversion module 10 is turned on, so that the POWER supply of the embedded control module 12 is ensured. Then, the EC _ PWRBTN _ I _ N (8) signal of the power-on input logic unit 111 in the self-lock control module 11 outputs a low pulse including a low level, and then the PCH _ PWRBTN _ I _ N (9) signal of the power-on output logic unit 121 of the embedded control module 12 outputs a low pulse, thereby realizing a normal power-on process and normal operation of the system.
B. When the self-locking control module operates, the self-locking output logic unit in the embedded control module 12 LOCKs EC _ PWR _ LOCK (7) signal output to be high level, and the V3P3A _ EN (4) signal output to unlock the self-locking input logic unit of the self-locking control module 11 is high level, so that the voltage of the buck switch power supply 1023p3a (5) in the voltage conversion module 10 is ensured to be turned on, and the voltage of the power supply 3p3a (5) of the embedded control module 12 is ensured.
C. When the system is shut down, the self-locking output logic in the embedded control module 12 unlocks EC _ PWR _ LOCK (7) signal output to be low level, so that the voltage of the buck switch power supply 1023p3a (5) in the voltage conversion module 10 is turned off, and the voltage of the power supply 3p3a (5) of the embedded controller module is turned off, so that the system can realize a low-power-consumption shutdown state below 300 microamperes (uA) of current, and a power saving function is realized.
A second embodiment of the present invention provides an electronic device, including the power saving apparatus as described in any of the above.
Based on the power saving device and the electronic equipment provided by the invention, the power saving device is provided with the self-locking control module, the voltage conversion module and the embedded control module which are electrically connected with each other, wherein the embedded control module provides a first electric signal to the self-locking control module by receiving a shutdown signal of a physical key or a shutdown signal of software, so that the self-locking control module can control a low-voltage-difference power supply of the voltage conversion module to be kept on and a voltage-reducing switch power supply to be kept off, the problems of larger power consumption current when the electronic equipment provided with an energy storage unit is in a shutdown state in the prior art are solved, and meanwhile, the normal power supply of the electronic equipment in the operation process can be ensured.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An electricity saving device, comprising: the system comprises an automatic lock control module, a voltage conversion module and an embedded control module which are electrically connected with each other;
the embedded control module is configured to provide a first electric signal to the self-locking control module when receiving a shutdown signal, so that the self-locking control module can control the low-dropout power supply of the voltage conversion module to be kept on and the step-down switch power supply to be kept off.
2. The power saving device according to claim 1, wherein the input terminal of the voltage conversion module is electrically connected to a power supply;
the low-dropout power supply of the voltage conversion module is configured to provide an auxiliary voltage to the self-locking control module when a shutdown signal is received.
3. The power saving device according to claim 1, wherein the buck switching power supply of the voltage conversion module is configured to provide an operating voltage to the self-locking control module and the embedded control module when the electronic device is operating.
4. The power saving device according to claim 1, wherein the self-locking control module comprises a power-on input logic unit and a self-locking logic input unit;
the starting-up input logic unit is configured to provide a second electric signal to the voltage-reducing switch power supply when a starting-up signal is received, so that the voltage-reducing switch power supply provides operating voltage to the self-locking control module and the embedded control module;
the self-locking logic input unit is configured to receive a self-locking signal of the embedded control module so as to continuously provide a second electric signal to the buck switching power supply.
5. The power saving device according to claim 4, wherein the embedded control module comprises a power-on output logic unit and a self-locking logic output unit;
the power-on output logic unit is configured to receive a fourth electric signal of the power-on input logic unit and control the electronic equipment to realize power-on based on the fourth electric signal;
the self-locking logic output unit is configured to provide a self-locking signal to the self-locking logic input unit after the operation voltage is provided by the buck switching power supply, so that the self-locking logic input unit can control the buck switching power supply to continuously provide the operation voltage.
6. The power saving device according to claim 5, wherein the embedded control module provides a first electrical signal to the self-locking logic input unit through the self-locking logic output unit when receiving a shutdown signal, so that the self-locking logic input unit can control the buck switching power supply to stop providing the operating voltage.
7. An electronic device, comprising the power saving device as claimed in any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211663674.0A CN115986902B (en) | 2022-12-23 | 2022-12-23 | Electricity-saving device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211663674.0A CN115986902B (en) | 2022-12-23 | 2022-12-23 | Electricity-saving device and electronic equipment |
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| CN115986902A true CN115986902A (en) | 2023-04-18 |
| CN115986902B CN115986902B (en) | 2024-07-02 |
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| US7064531B1 (en) * | 2005-03-31 | 2006-06-20 | Micrel, Inc. | PWM buck regulator with LDO standby mode |
| US20080309167A1 (en) * | 2007-06-12 | 2008-12-18 | Inventec Corporation | Power-saving circuit and method thereof |
| CN206441117U (en) * | 2017-02-21 | 2017-08-25 | 济南浪潮高新科技投资发展有限公司 | It is a kind of to reduce the circuit of tablet personal computer stand-by power consumption |
| CN113629854A (en) * | 2021-09-01 | 2021-11-09 | 上海汇珏网络通信设备股份有限公司 | Lithium battery power supply system with linear dynamic charging current-limiting function for communication equipment |
| CN114301163A (en) * | 2022-01-28 | 2022-04-08 | 上海山科机器人有限公司 | Power management circuit, functional module, autonomous operation device and control system |
| CN114914122A (en) * | 2022-03-31 | 2022-08-16 | 岚图汽车科技有限公司 | Relay control method, system, device and medium |
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2022
- 2022-12-23 CN CN202211663674.0A patent/CN115986902B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7064531B1 (en) * | 2005-03-31 | 2006-06-20 | Micrel, Inc. | PWM buck regulator with LDO standby mode |
| US20080309167A1 (en) * | 2007-06-12 | 2008-12-18 | Inventec Corporation | Power-saving circuit and method thereof |
| CN206441117U (en) * | 2017-02-21 | 2017-08-25 | 济南浪潮高新科技投资发展有限公司 | It is a kind of to reduce the circuit of tablet personal computer stand-by power consumption |
| CN113629854A (en) * | 2021-09-01 | 2021-11-09 | 上海汇珏网络通信设备股份有限公司 | Lithium battery power supply system with linear dynamic charging current-limiting function for communication equipment |
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