CN220381556U - Equipment awakening circuit and equipment - Google Patents
Equipment awakening circuit and equipment Download PDFInfo
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- CN220381556U CN220381556U CN202321715658.1U CN202321715658U CN220381556U CN 220381556 U CN220381556 U CN 220381556U CN 202321715658 U CN202321715658 U CN 202321715658U CN 220381556 U CN220381556 U CN 220381556U
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- 230000002093 peripheral effect Effects 0.000 description 2
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Abstract
The application discloses equipment wake-up circuit and equipment, equipment includes equipment wake-up circuit, battery and main control unit, and wherein equipment wake-up circuit includes: the device comprises a first battery management circuit, a second battery management circuit, a starting control circuit and a wake-up detection circuit; the first battery management circuit is used for acquiring a working voltage signal and a low-power-consumption voltage signal through the battery when the equipment enters a low-power-consumption state, sending the working voltage signal to the starting control circuit and sending the low-power-consumption voltage signal to the main controller; the wake-up detection circuit is used for detecting a voltage wake-up signal and sending the detected voltage wake-up signal to the starting control circuit; the starting control circuit is used for generating a voltage starting signal according to the voltage wake-up signal and sending the voltage starting signal to the second battery management circuit; the second battery management circuit is used for generating a normal working voltage signal according to the voltage starting signal and sending the normal working voltage signal to the main controller.
Description
Technical Field
The application relates to the technical field of wake-up, in particular to a device wake-up circuit and device.
Background
Control systems are included in electronic devices to control the electronic devices to perform various functions. The control system generally comprises a working mode and a low power consumption mode, the control system can be configured to enter the low power consumption mode in certain time periods to reduce power consumption, and the control system is awakened through the awakening circuit when the control system is required to work normally.
In the low power mode, the control system needs to provide an operating voltage for the wake-up circuit, and thus needs to relate to a wake-up circuit with low power consumption to further reduce power consumption.
Disclosure of Invention
The embodiment of the application provides a low-power-consumption device wake-up circuit and device.
The embodiment of the application adopts the following technical scheme:
in a first aspect, an embodiment of the present application provides a device wake-up circuit, including: the device comprises a first battery management circuit, a second battery management circuit, a starting control circuit and a wake-up detection circuit;
the first battery management circuit is respectively connected with a battery, a main controller and the starting control circuit of the equipment, and is used for acquiring a working voltage signal and a low-power-consumption voltage signal through the battery when the equipment enters a low-power-consumption state, sending the working voltage signal to the starting control circuit, providing working voltage for the starting control circuit, sending the low-power-consumption voltage signal to the main controller, and providing low-power-consumption voltage for the main controller;
the wake-up detection circuit is connected with the start-up control circuit and is used for detecting a voltage wake-up signal and sending the detected voltage wake-up signal to the start-up control circuit;
the starting control circuit is also connected with the second battery management circuit and is used for generating a voltage starting signal according to the voltage wake-up signal and sending the voltage starting signal to the second battery management circuit;
the second battery management circuit is also respectively connected with the battery and the main controller and is used for generating a normal working voltage signal according to the voltage starting signal and sending the normal working voltage signal to the main controller so as to provide normal working voltage for the main controller.
In a second aspect, embodiments of the present application further provide an apparatus, including: the device wake-up circuit, a battery and a main controller are connected with the device wake-up circuit.
The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect: the equipment wake-up circuit comprises a first battery management circuit, a second battery management circuit, a starting control circuit and a wake-up detection circuit, wherein the first battery management circuit and the second battery management circuit are conventional battery management circuits, power consumption components are fewer, energy consumption is lower, the starting control circuit and the wake-up detection circuit are mainly used for signal transmission, corresponding circuit elements are mainly power consumption elements such as diodes and triodes, and the diodes and the triodes in the circuit are in a cut-off state when the main controller enters a low power consumption mode, so that power consumption of the equipment wake-up circuit can be reduced, and the purpose of saving equipment power consumption is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a schematic structural diagram of a wake-up circuit of a device in an embodiment of the present application;
FIG. 2 is a schematic circuit diagram of a start control circuit and a wake-up detection circuit according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a chip of a host controller according to an embodiment of the present application;
FIG. 4 is a schematic circuit diagram of a first battery management circuit according to an embodiment of the present application;
FIG. 5 is a schematic circuit diagram of a second battery management circuit according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
An embodiment of the present application provides a device wake-up circuit, as shown in fig. 1, and provides a schematic structural diagram of the device wake-up circuit in the embodiment of the present application, where the device wake-up circuit includes: the device comprises a first battery management circuit, a second battery management circuit, a starting control circuit and a wake-up detection circuit;
the first battery management circuit is respectively connected with a battery of the equipment, the main controller and the starting control circuit and is used for acquiring a working voltage signal and a low-power-consumption voltage signal through the battery when the equipment enters a low-power-consumption state, sending the working voltage signal to the starting control circuit, providing working voltage for the starting control circuit, sending the low-power-consumption voltage signal to the main controller and providing low-power-consumption voltage for the main controller;
the wake-up detection circuit is connected with the start-up control circuit and is used for detecting a voltage wake-up signal and sending the detected voltage wake-up signal to the start-up control circuit;
the starting control circuit is also connected with the second battery management circuit and is used for generating a voltage starting signal according to the voltage wake-up signal and sending the voltage starting signal to the second battery management circuit;
the second battery management circuit is also respectively connected with the battery and the main controller and is used for generating a normal working voltage signal according to the voltage starting signal and sending the normal working voltage signal to the main controller so as to provide the main controller with the normal working voltage.
The functional module of the device running in the low power consumption mode may be configured according to the user requirement, in some scenarios, in the low power consumption mode, the battery only provides voltages for the clock pin (for example, pin 21 of the MCU chip shown in fig. 3) and the device wake-up circuit of the main controller, and the normal operating voltage of the main controller includes, for example, vcc_3v3 voltage required by the MCU chip shown in fig. 3, for example, vcc_3v3 voltage required by pins 7, 13, 32, and 64.
In some embodiments of the present application, the wake-up detection circuit comprises at least one wake-up detection leg and a wake-up decision circuit, wherein the wake-up detection leg comprises at least one of a device interface wake-up leg, a key wake-up leg, and a sensor wake-up leg;
each wake-up detection branch is connected with the wake-up decision circuit and is used for detecting wake-up signals of different types and sending the detected wake-up signals to the wake-up decision circuit;
the wake-up decision circuit is connected with the start-up control circuit and is used for generating the voltage wake-up signal according to the wake-up signal and sending the voltage wake-up signal to the start-up control circuit when receiving a type of wake-up signal.
As shown IN fig. 2, the device interface wake-up branch includes a fourth diode D4 and a fourth resistor R4, where an anode terminal of the fourth diode D4 is connected to the device interface charge_in, a cathode terminal of the fourth diode D4 is connected to one end of the fourth resistor R4, and another end of the fourth resistor R4 is connected to the wake-up decision circuit, for example, connected to a base of the second triode IN fig. 2.
The key wake-up branch includes a fifth diode D5, where an anode terminal of the fifth diode D5 is connected to the device key S1, and a cathode terminal of the fifth diode D5 is connected to the wake-up decision circuit, for example, to a base of the second triode in fig. 2. The device button S1 is here also connected to the main controller via a fifth resistor R5, for example to the vcc_3v3 port of the MCU chip shown in fig. 3. The fourth resistor R4 and the fifth resistor R5 are current limiting resistors.
The sensor wake-up branch circuit comprises a third triode Q3, wherein the base electrode of the third triode Q3 is connected with the output end VOUT of the sensor, the emitter electrode of the third triode Q3 is connected with the main controller, for example, the output end VOCs_3V3 port of the MCU chip shown in fig. 3, and the collector electrode of the third triode Q3 is connected with the wake-up judging circuit, for example, the base electrode of the second triode shown in fig. 2. In practical applications, the output VOUT of the sensor is also connected to the main controller, for example, to the hall_power_key pin of the MCU chip shown in fig. 3.
In this embodiment, the device interface, the device key and the sensor may be set according to application requirements, for example, the USB interface is used as the device interface of this embodiment, so when the USB interface is plugged into the USB device, a wake-up signal is generated to switch the host controller from the low power mode to the normal working mode; the equipment case is, for example, a power key, so that when the power key is pressed, a wake-up signal is generated to switch the main controller from a low-power mode to a normal working mode; the sensor may be a hall sensor, such that when the hall sensor outputs an electromagnetic signal, a wake-up signal will be generated to switch the main controller from a low power mode to a normal operating mode.
In some scenarios of this embodiment, when the wake-up detection circuit includes a device interface wake-up branch, a key wake-up branch, and a sensor wake-up branch, the other end of the fourth resistor R4 is connected to the positive end of the fifth diode D5, and the negative end of the fifth diode D5 is connected to the wake-up decision circuit after being combined with the collector of the third triode. Thus, when one of the three wake-up signals is present, the main controller will wake-up. The three wake-up signals comprise an interface wake-up signal detected by the device interface wake-up branch, a key wake-up signal detected by the key wake-up branch and a sensor wake-up signal detected by the sensor wake-up branch.
In some embodiments of the present application, the wake-up decision circuit includes a second triode Q2, where a collector of the second triode Q2 is connected to the start-up control circuit (i.e. connected to the other end of the third resistor R3 shown in fig. 2), an emitter of the second triode Q2 is grounded GND, and a base of the second triode Q2 and a negative end of the fifth diode D5 are connected to a parallel connection point of the collector of the third triode Q3.
In some embodiments of the present application, the start control circuit includes a first MOS transistor Q1, a first resistor R1, and a third resistor R3, where the first resistor R1 maintains stability of the first MOS transistor Q1 when the second transistor Q2 is not turned on, so that a gate voltage G of the first MOS transistor Q1 is not less than a voltage of the source S, and if the gate voltage G is less than the voltage of the source S in a scene where no wake-up signal is detected, the first MOS transistor Q1 is turned on and false wake-up occurs;
the source electrode S of the first MOS transistor Q1 is connected in parallel with one end of the first resistor R1 and then connected to the first battery management circuit, that is, connected to the VBAT port of the power management chip U1 shown in fig. 4, and the other end of the first resistor R1 is connected in parallel with the gate electrode G of the first MOS transistor Q1;
the grid G of the first MOS tube Q1 is connected with the other end of the first resistor R1 in parallel and then is connected with one end of the third resistor R3, and the other end of the third resistor R3 is connected with the collector electrode of the second triode Q2;
the drain D of the first MOS transistor Q1 is connected to the second battery management circuit, that is, to the VBAT1 port of the power management chip U2 shown in fig. 5.
Optionally, the start control circuit further includes a seventh capacitor C7 and an eighth capacitor C8, where the seventh capacitor C7 and the eighth capacitor C8 are filter capacitors, one end of the seventh capacitor C7 is connected in parallel with the drain D of the first MOS transistor Q1, and the other end of the seventh capacitor C7 is grounded GND;
one end of the eighth capacitor C8 is connected in parallel with the second battery management circuit, that is, connected to the vcc_3v3 port of the power management chip U2 shown in fig. 5, and the other end of the eighth capacitor C8 is grounded.
In some embodiments of the present application, when the wake-up detection circuit includes a key wake-up branch, the device wake-up circuit further includes a keep-alive circuit and a notification circuit;
the notification circuit is respectively connected with the main controller and the key wake-up branch and is used for detecting a key wake-up signal and sending the key wake-up signal to the main controller so that the main controller sends a keep-alive signal to the keep-alive circuit based on the key wake-up signal;
the keep-alive circuit is respectively connected with the main controller and the wake-up decision circuit and is used for receiving a keep-alive signal sent by the main controller and sending the keep-alive signal to the wake-up decision circuit;
and the wake-up decision circuit is used for generating the voltage wake-up signal according to the keep-alive signal and sending the voltage wake-up signal to the starting control circuit.
In some application scenarios of the present embodiment, the notification circuit includes a sixth resistor R6, a seventh resistor R7, and a ninth capacitor C9, and the keep-alive circuit includes a third diode D3;
the positive terminal of the third diode D3 is connected to the MAIN controller, for example, connected to the io_main_power_up pin of the MCU chip shown in fig. 3, and the negative terminal of the third diode D3 is connected to the negative terminal of the fifth diode D5 in parallel and then connected to the wake-UP decision circuit, based on the base connection of the second triode Q2 shown in fig. 2;
one end of the sixth resistor R6 is connected to the device KEY S1, the other end of the sixth resistor R6 is connected in parallel with one end of the seventh resistor R7 and one end of the ninth capacitor C9, and is connected to the main controller after being connected in parallel, for example, to the io_key_power pin of the MCU chip shown in fig. 3, the other end of the seventh resistor R7 is grounded GND, and the other end of the ninth capacitor C9 is grounded GND.
Therefore, when the equipment awakening circuit wakes UP the MAIN controller through the equipment key, the type of the awakening signal is sent to the MAIN controller through the notification circuit, and therefore the MAIN controller can send the keep-alive signal through the IO_MAIN_POWER_UP pin when being awakened by the key awakening signal, so that the second diode D3 is conducted, the base voltage of the second triode Q2 is increased, the conducting state of the second triode Q2 is kept, the first MOS tube Q1 is kept in the conducting state, and the second battery management circuit U2 can continuously provide the VCC_3V3 voltage signal for the MAIN controller MCU.
In some embodiments of the present application, the first battery management circuit and the second battery management circuit may be implemented by a battery management chip in the prior art, for example, the first battery management circuit includes a battery management chip U1 shown in fig. 4, the battery management chip U1 may further include some peripheral elements, such as a first capacitor C1, a second capacitor C2, a third capacitor C3, and a first diode D1, where an input Vin of the battery management chip U1 is connected to a battery of the device, and an output Vout is connected to a vcc_3v3 pin of the MCU chip shown in fig. 3
For example, the second battery management circuit includes the battery management chip U2 shown in fig. 5, where the battery management chip U2 may further include some peripheral components, such as a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, and a second diode D2, where the input Vin of the battery management chip U2 is connected to the battery of the device, and the output Vout is connected to the vcc_3v3 pin of the MCU chip shown in fig. 3.
Based on the device wake-up circuit provided in the above embodiment, when no wake-up signal is detected by the three wake-up detection branches, the second transistor Q2 is in an off state, and the corresponding first MOS transistor Q1 is in an off state.
When any one of the three wake-up detection branches detects a wake-up signal, for example, the key wake-up branch detects a case wake-up signal, the fifth diode D5 is turned on, so that the second triode Q2 is converted from the off state to the on state, and the first MOS tube Q1 is converted from the off state to the on state.
The embodiment of the application also provides a device, as shown in fig. 6, and provides a schematic structural diagram of the device in the embodiment of the application, where the device includes: the device wake-up circuit is the device wake-up circuit in the above embodiment, and the specific circuit structure and function of the device wake-up circuit refer to the foregoing and will not be described herein.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (10)
1. A device wake-up circuit, the device wake-up circuit comprising: the device comprises a first battery management circuit, a second battery management circuit, a starting control circuit and a wake-up detection circuit;
the first battery management circuit is respectively connected with a battery, a main controller and the starting control circuit of the equipment, and is used for acquiring a working voltage signal and a low-power-consumption voltage signal through the battery when the equipment enters a low-power-consumption state, sending the working voltage signal to the starting control circuit, providing working voltage for the starting control circuit, sending the low-power-consumption voltage signal to the main controller, and providing low-power-consumption voltage for the main controller;
the wake-up detection circuit is connected with the start-up control circuit and is used for detecting a voltage wake-up signal and sending the detected voltage wake-up signal to the start-up control circuit;
the starting control circuit is also connected with the second battery management circuit and is used for generating a voltage starting signal according to the voltage wake-up signal and sending the voltage starting signal to the second battery management circuit;
the second battery management circuit is also respectively connected with the battery and the main controller and is used for generating a normal working voltage signal according to the voltage starting signal and sending the normal working voltage signal to the main controller so as to provide normal working voltage for the main controller.
2. The device wake-up circuit of claim 1 wherein the wake-up detection circuit comprises at least one wake-up detection leg and a wake-up decision circuit, the wake-up detection leg comprising at least one of a device interface wake-up leg, a key wake-up leg, and a sensor wake-up leg;
each wake-up detection branch is connected with the wake-up decision circuit and is used for detecting wake-up signals of different types and sending the detected wake-up signals to the wake-up decision circuit;
the wake-up decision circuit is connected with the start-up control circuit and is used for generating the voltage wake-up signal according to the wake-up signal and sending the voltage wake-up signal to the start-up control circuit when receiving a type of wake-up signal.
3. The device wake-up circuit of claim 2 wherein the device interface wake-up leg comprises a fourth diode and a fourth resistor, the positive terminal of the fourth diode being connected to the device interface, the negative terminal of the fourth diode being connected to one terminal of the fourth resistor, the other terminal of the fourth resistor being connected to the wake-up decision circuit;
the key wake-up branch comprises a fifth diode, the positive end of the fifth diode is connected with a device key, and the negative end of the fifth diode is connected with the wake-up decision circuit;
the sensor wake-up branch circuit comprises a third triode, wherein the base electrode of the third triode is connected with the output end of the sensor, the emitter electrode of the third triode is connected with the main controller, and the collector electrode of the third triode is connected with the wake-up decision circuit.
4. The device wake-up circuit of claim 3 wherein when the wake-up detection circuit includes a device interface wake-up leg, a key wake-up leg, and a sensor wake-up leg, the other end of the fourth resistor is connected to the positive terminal of the fifth diode, and the negative terminal of the fifth diode is connected to the wake-up decision circuit after being combined with the collector of the third triode.
5. The device wake-up circuit of claim 4, wherein the wake-up decision circuit comprises a second transistor having a collector connected to the start-up control circuit, an emitter connected to ground, a base and a negative terminal of the fifth diode connected to a collector parallel connection point of the third transistor.
6. The device wake-up circuit of claim 5, wherein the start-up control circuit comprises a first MOS transistor, a first resistor, and a third resistor;
the source electrode of the first MOS tube is connected with one end of the first resistor in parallel and then connected with the first battery management circuit, and the other end of the first resistor is connected with the grid electrode of the first MOS tube in parallel;
the grid electrode of the first MOS tube is connected with the other end of the first resistor in parallel and then connected with one end of the third resistor, and the other end of the third resistor is the collector electrode of the second triode;
and the drain electrode of the first MOS tube is connected with the second battery management circuit.
7. The device wake-up circuit of claim 6 wherein the start-up control circuit further comprises a seventh capacitor and an eighth capacitor;
one end of the seventh capacitor is connected with the drain electrode of the first MOS tube in parallel, and the other end of the seventh capacitor is grounded;
one end of the eighth capacitor is connected with the second battery management circuit in parallel, and the other end of the eighth capacitor is grounded.
8. The device wake-up circuit of claim 3 wherein when the wake-up detection circuit comprises the key wake-up leg, the device wake-up circuit further comprises a keep-alive circuit and a notification circuit;
the notification circuit is respectively connected with the main controller and the key wake-up branch and is used for detecting a key wake-up signal and sending the key wake-up signal to the main controller so that the main controller sends a keep-alive signal to the keep-alive circuit based on the key wake-up signal;
the keep-alive circuit is respectively connected with the main controller and the wake-up decision circuit and is used for receiving a keep-alive signal sent by the main controller and sending the keep-alive signal to the wake-up decision circuit;
and the wake-up decision circuit is used for generating the voltage wake-up signal according to the keep-alive signal and sending the voltage wake-up signal to the starting control circuit.
9. The device wake-up circuit of claim 8, wherein the notification circuit comprises a sixth resistor, a seventh resistor, and a ninth capacitor, the keep-alive circuit comprising a third diode;
the positive electrode end of the third diode is connected with the main controller, and the negative electrode end of the third diode is connected with the negative electrode end of the fifth diode in parallel and then connected with the wake-up judgment circuit;
one end of the sixth resistor is connected with the equipment key, the other end of the sixth resistor is connected with one end of the seventh resistor and one end of the ninth capacitor in parallel respectively and then connected with the main controller, the other end of the seventh resistor is grounded, and the other end of the ninth capacitor is grounded.
10. An apparatus, characterized in that it comprises: a device wake-up circuit and a battery and a main controller connected to the device wake-up circuit, wherein the device wake-up circuit is a device wake-up circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321715658.1U CN220381556U (en) | 2023-06-30 | 2023-06-30 | Equipment awakening circuit and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321715658.1U CN220381556U (en) | 2023-06-30 | 2023-06-30 | Equipment awakening circuit and equipment |
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| Publication Number | Publication Date |
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| CN220381556U true CN220381556U (en) | 2024-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321715658.1U Active CN220381556U (en) | 2023-06-30 | 2023-06-30 | Equipment awakening circuit and equipment |
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| Country | Link |
|---|---|
| CN (1) | CN220381556U (en) |
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2023
- 2023-06-30 CN CN202321715658.1U patent/CN220381556U/en active Active
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A device wake-up circuit and device Granted publication date: 20240123 Pledgee: Beijiao sub branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: Guangdong Huazhi Beauty Technology Co.,Ltd. Registration number: Y2024980035433 |