CN216312699U - Automatic wake-up circuit and power supply device - Google Patents
Automatic wake-up circuit and power supply device Download PDFInfo
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- CN216312699U CN216312699U CN202121606404.7U CN202121606404U CN216312699U CN 216312699 U CN216312699 U CN 216312699U CN 202121606404 U CN202121606404 U CN 202121606404U CN 216312699 U CN216312699 U CN 216312699U
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Abstract
The utility model discloses an automatic wake-up circuit and a power supply device, wherein an access unit is connected with an external load, an activation unit is used for judging whether a load is accessed or not, a detection unit is used for detecting the connection state of the load in real time, an MCU is used for acquiring and processing signals, and different control effects are realized according to different conditions; when the load is connected to the access unit, the activation unit outputs an activation signal to the MCU, the MCU controls the switch unit to be conducted according to the activation signal, and after the power supply is conducted with the switch unit, the detection unit continuously detects the conduction condition of the power supply and the switch unit and sends a detection signal to the MCU; therefore, the technical effect that the circuit can be automatically awakened to supply power when the load is connected is achieved.
Description
Technical Field
The utility model belongs to the technical field of electronics, and particularly relates to an automatic wake-up circuit and a power supply device.
Background
At present, when an external load is connected with power supply equipment, a wake-up starting process is usually needed, the existing wake-up mode is realized by a specific key or a switch, and other modes are difficult to achieve for realizing transparent wake-up;
therefore, the following problems exist in implementing wake-up by using a key or a switch: 1. when the switch and the key are worn for a long time or structurally faulted, the awakening function can not be normally carried out; 2. in some specific occasions, for example, in a scene that the external load needs to be continuously replaced, the external load needs to be continuously awakened through the switch and the key at each replacement, and the problem of large operation amount exists.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above disadvantages of the prior art, an object of the present invention is to provide an automatic wake-up circuit, which aims to solve the technical problem of inconvenience caused by waking up through a key or a switch.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an auto-wake-up circuit, the auto-wake-up circuit comprising:
the access unit is used for accessing a load;
the activation unit is used for sending an activation signal to the MCU;
the detection unit is used for detecting whether the load is continuously connected;
the switch unit is used for conducting the power supply and the access unit;
the MCU is used for controlling the switch unit;
the input end of the access unit is used for accessing a load, the output end of the access unit is connected with the input end of the detection unit, the output end of the detection unit is connected with the MCU, the first end of the switch unit is connected with the access unit, the second end of the switch unit is connected with the MCU, and the third end of the switch unit is grounded; the output end of the MCU is connected with the switch unit, the detection unit is connected between the power supply and the switch unit, and the output end of the detection unit is connected with the MCU;
when a load is connected to the access unit, the activation unit outputs an activation signal to the MCU, the MCU controls the switch unit to be conducted according to the activation signal, and after the power supply is conducted with the switch unit, the detection unit continuously detects the conduction condition of the power supply and the switch unit and sends a detection signal to the MCU.
The short-circuit protection unit comprises a comparison circuit and a protection circuit, the input end of the comparison circuit is connected with the output end of the detection unit, the first output end of the comparison circuit is connected with the MCU, the second output end of the comparison circuit is connected with the input end of the protection circuit, and the output end of the protection circuit is connected with the switch unit;
the comparison circuit is used for judging whether the current voltage is greater than a preset voltage or not, sending an alarm signal to the MCU when the current voltage is greater than the preset voltage, and outputting a high level to the protection circuit, and the protection circuit closes the switch unit according to the high level.
Further, the comparison circuit comprises a comparator U1A, the in-phase end of the comparator U1A is connected with the output end of the detection unit, the inverting end of the comparator U1A is connected with the MCU, and the output end of the comparator U1A is respectively connected with the short-circuit protection unit and the MCU.
Furthermore, the access unit comprises a plurality of access terminals and first capacitors connected with the access terminals in parallel, each access terminal is provided with a positive access point and a negative access point, two ends of each first capacitor are respectively connected with the positive access point and the negative access point, the positive access points and the negative access points are conducted through loads at the moment when the loads are connected with the access terminals, the first capacitors release instantaneous current, and the current sequentially flows through the input ends of the positive access points, the loads, the negative access points and the activation unit.
Furthermore, the detection unit comprises an acquisition circuit and an amplification circuit, one end of the acquisition circuit is connected between the power supply and the switch unit, the other end of the acquisition circuit is connected with one end of the amplification circuit, and the other end of the amplification circuit is connected with the MCU; the acquisition circuit is used for detecting whether a load is connected or not, if so, a voltage signal is sent to the amplifying circuit, and the amplifying circuit is used for amplifying the voltage signal and outputting the amplified voltage signal to the MCU.
Furthermore, the acquisition circuit comprises a sampling resistor and a voltage drop acquisition circuit, one end of the acquisition circuit is connected between the power supply and the switch unit, the other end of the sampling resistor is grounded, the voltage drop acquisition circuit is connected in parallel with two ends of the sampling resistor, and the output end of the voltage drop acquisition circuit is connected with the input end of the amplification circuit; the voltage drop acquisition circuit is used for acquiring the voltage drop of the acquisition circuit and outputting a voltage signal to the amplification circuit.
Furthermore, the amplifying circuit comprises a first amplifier, a positive phase input end and a direction input end of the first amplifier are connected with an output end of the acquisition circuit, and an output end of the first amplifier is connected with the MCU.
Further, the switch unit includes the MOS pipe, the D utmost point of MOS pipe with the access unit is connected, the G utmost point of MOS pipe with MCU connects, the S utmost point ground connection of MOS pipe.
Further, the activation unit includes a resistor R65, a resistor R25, a diode D10, and a capacitor C21;
the one end of resistance R65 with the access unit is connected, resistance R65's the other end ground connection, resistance R25's one end is inserted resistance R65 with between the access unit, resistance R25's the other end with MCU connects, diode D10's input ground connection, diode D10's output inserts resistance R25 with between the MCU, electric capacity C21's one end with MCU connects, electric capacity C21's the other end ground connection.
An automatic wake-up power supply device comprises a battery, a shell, a main control board and the automatic wake-up circuit, wherein the automatic wake-up circuit is arranged on the main control board, and the battery is connected with the main control board and is arranged in the shell; the shell is characterized by further comprising an external interface, wherein the external interface is used for being connected with external load equipment, the external interface is arranged on the side wall of the shell, and the external interface is connected with the main control board.
Compared with the prior art, the utility model has the beneficial effects that:
the automatic wake-up circuit provided by the utility model is connected with an external load through the access unit, judges whether a load is accessed through the activation unit, detects the connection state of the load in real time through the detection unit, acquires and processes signals through the MCU, and realizes different control effects according to different conditions; when the load is connected to the access unit, the activation unit outputs an activation signal to the MCU, the MCU controls the switch unit to be conducted according to the activation signal, and after the power supply is conducted with the switch unit, the detection unit continuously detects the conduction condition of the power supply and the switch unit and sends a detection signal to the MCU; therefore, the technical effect that the circuit can be automatically awakened to supply power when the load is connected is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic circuit diagram of an auto-wake-up circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an auto-wake-up power supply device according to another embodiment of the present invention.
Description of reference numerals:
1. an access unit; 11. an access terminal; 111. a positive access point; 112. a negative access point; 2. an activation unit; 3. a detection unit; 31. an acquisition circuit; 32. an amplifying circuit; 4. a switch unit; 5. MCU; 6. a power source; 7. a short-circuit protection unit; 71. a comparison circuit; 72. a protection circuit; 8. a battery; 9. A housing; 91. an external interface; 10. a main control panel.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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 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.
Referring to FIG. 1, an embodiment of the present invention provides
An auto-wake-up circuit, the auto-wake-up circuit comprising:
the access unit is used for accessing a load;
the activation unit is used for sending an activation signal to the MCU;
the detection unit is used for detecting whether the load is continuously connected;
the switch unit is used for conducting the power supply and the access unit;
the MCU is used for controlling the switch unit;
the input end of the access unit is used for accessing a load, the output end of the access unit is connected with the input end of the detection unit, the output end of the detection unit is connected with the MCU, the first end of the switch unit is connected with the access unit, the second end of the switch unit is connected with the MCU, and the third end of the switch unit is grounded; the output end of the MCU is connected with the switch unit, the detection unit is connected between the power supply and the switch unit, and the output end of the detection unit is connected with the MCU;
when a load is connected to the access unit, the activation unit outputs an activation signal to the MCU, the MCU controls the switch unit to be conducted according to the activation signal, and after the power supply is conducted with the switch unit, the detection unit continuously detects the conduction condition of the power supply and the switch unit and sends a detection signal to the MCU.
Specifically, the power supply is connected with the access unit, the switch unit is connected between the access unit and the ground, and the power supply can be conducted with the access unit only when the switch is conducted; the access unit is used for connecting an external load, when the external load is connected with the access unit, the access unit and the external load form a loop to generate an instantaneous voltage, the instantaneous voltage can be transmitted to the activation unit, the activation unit is used for detecting the instantaneous voltage of the access unit and transmitting the instantaneous voltage to the MCU, if the MCU detects the instantaneous voltage, the MCU judges that a load is accessed, and controls the switch unit to be conducted, so that the loop conduction between the power supply-the access unit-the load-the switch unit-the ground is realized, and the load is finally supplied with power; wherein the detection unit is arranged between the power supply and the switch unit, when the load is powered, the detection unit also has voltage input, the detection unit collects the voltage input and outputs a corresponding detection signal to the MCU for the MCU to detect the connection state, when the load is disconnected, the detection signal input of the detection unit is terminated, the MCU cannot receive the detection signal, when the MCU does not receive the detection signal after exceeding the preset time, the MCU judges that the load is removed and closes the switch unit, in short, the activation unit is used for generating an activation signal at the moment when the load is connected with the access unit and transmitting the activation signal to the MCU, the MCU opens the switch unit to realize the power supply of the load according to the judgment of the connection of the load by the activation signal, and simultaneously the detection unit collects the voltage signal and transmits the voltage signal to the MCU, so that the MCU can continuously determine the state that the load is connected with the power supply, when the load is removed, namely, the detection unit does not have voltage signal collection, if the MCU cannot acquire the voltage signal of the detection unit, indicating that the load is removed, and closing the switch unit; when finally having realized the load and connecting, the automatic wake-up circuit of this application can awaken the technical effect that the outer load provided the electric energy voluntarily, and when the load removed, the automatic wake-up circuit of this application can automatic disconnection switch unit protection circuit's technical effect.
The short-circuit protection unit comprises a comparison circuit and a protection circuit, wherein the input end of the comparison circuit is connected with the output end of the detection unit, the first output end of the comparison circuit is connected with the MCU, the second output end of the comparison circuit is connected with the input end of the protection circuit, and the output end of the protection circuit is connected with the switch unit;
the comparison circuit is used for judging whether the current voltage is greater than a preset voltage or not, sending an alarm signal to the MCU when the current voltage is greater than the preset voltage, and outputting a high level to the protection circuit, and the protection circuit closes the switch unit according to the high level.
Further, the comparison circuit comprises a comparator U1A, the in-phase end of the comparator U1A is connected with the output end of the detection unit, the inverting end of the comparator U1A is connected with the MCU, and the output end of the comparator U1A is respectively connected with the short-circuit protection unit and the MCU.
Specifically, the comparison circuit comprises a resistor R40, a resistor R42, a resistor R44 and a resistor R38, the resistor R40 is connected between the in-phase end of the comparator U1A and the detection circuit, the resistor R42, the resistor R38 and the resistor R44 are sequentially connected in series, one end of the resistor R42 is connected with the output end of the comparator U1A, one end of the resistor R44 is connected with the MCU, the input voltage of the detection circuit is transmitted to the in-phase end of the comparator U1A through the resistor R40, the inverting end of the comparator U1A inputs a fixed reference voltage through the MCU, and the comparator U1A compares the voltages of the in-phase end and the inverting end; when the load is short-circuited, large current is generated, the detection circuit outputs corresponding large voltage through the large current and transmits the large voltage to the in-phase end of the comparator U1A, when the comparator U1A compares the in-phase end with the anti-phase end, high level is output at the output end and is divided into 2 paths, and the 1 path is transmitted to the MCU through the resistors R38 and R44 and serves as an alarm signal; and the other path of the signal is transmitted to a protection circuit, and the switch unit is turned off through the protection circuit.
The switching unit comprises a triode Q14, a triode Q11, a triode Q17, a resistor R47, a resistor R37, a resistor R43, a resistor 50, a resistor R34 and a capacitor C17, wherein the triode Q14 and the triode Q17 are NPN triodes, and the triode Q11 is a PNP triode; the base electrode of the triode Q14 is connected with the output end of the comparison circuit, the emitter electrode of the triode Q14 is grounded, the collector electrode of the triode Q14 is connected with the base electrode of the triode Q11, the emitter electrode of the triode Q11 is connected with the MCU, the collector electrode of the triode Q11 is connected with the base electrode of the triode Q17, the emitter electrode of the triode Q17 is grounded, and the collector electrode of the triode Q17 is connected with the switching power supply; the resistor R47 is connected between the base of the triode Q14 and the ground, the capacitor C17 is connected between the base of the triode Q14 and the ground, the resistor R37 is connected between the collector of the triode Q14 and the base of the triode Q11, the resistor R43 is connected between the collector of the triode Q11 and the base of the triode Q17, the resistor R50 is connected between the base of the triode Q17 and the ground, and the resistor R34 is connected between the triode Q17 and the switching unit; high level signal is input through the comparison circuit, and then drive triode Q14, triode Q11, triode Q17 jointly do the pain, finally reach the purpose of closing the switch unit, make the technical effect of load disconnection, the effectual automatic awakening circuit of this application disconnection load when the load short circuit of having protected realizes the effect of protection safety.
Furthermore, the access unit comprises a plurality of access terminals and first capacitors connected with the access terminals in parallel, each access terminal is provided with a positive access point and a negative access point, two ends of each first capacitor are respectively connected with the positive access point and the negative access point, the positive access points and the negative access points are conducted through loads at the moment when the loads are connected with the access terminals, the first capacitors release instantaneous current, and the current sequentially flows through the input ends of the positive access points, the loads, the negative access points and the activation unit.
Specifically, a plurality of access terminals are connected in parallel, positive access points of the access terminals are all connected with a power supply, negative access points of the access terminals are all connected with a switch unit, a first capacitor is a polar capacitor, the positive electrodes are connected with the power supply, and the negative electrodes are connected with the negative access points of the access terminals; the access unit further comprises a reverse flow prevention unit, the reverse flow prevention unit comprises a diode D3 and a diode D4, a diode D3 is connected with a diode D4 in parallel, input ends of a diode D3 and a diode D4 are both connected with a negative pole access point of the access terminal, and output ends of a diode D3 and a diode D4 are both connected with the activation unit, so that reverse flow of load fault current is prevented from flowing from the activation unit to the access terminal, and a protection effect of the access terminal is achieved.
Furthermore, the detection unit comprises an acquisition circuit and an amplification circuit, one end of the acquisition circuit is connected between the power supply and the switch unit, the other end of the acquisition circuit is connected with one end of the amplification circuit, and the other end of the amplification circuit is connected with the MCU; the acquisition circuit is used for detecting whether a load is connected or not, if so, a voltage signal is sent to the amplifying circuit, and the amplifying circuit is used for amplifying the voltage signal and outputting the amplified voltage signal to the MCU.
Furthermore, the acquisition circuit comprises a sampling resistor and a voltage drop acquisition circuit, one end of the acquisition circuit is connected between the power supply and the switch unit, the other end of the sampling resistor is grounded, the voltage drop acquisition circuit is connected in parallel with two ends of the sampling resistor, and the output end of the voltage drop acquisition circuit is connected with the input end of the amplification circuit; the voltage drop acquisition circuit is used for acquiring the voltage drop of the acquisition circuit and outputting a voltage signal to the amplification circuit.
Furthermore, the amplifying circuit comprises a first amplifier, a positive phase input end and a direction input end of the first amplifier are connected with an output end of the acquisition circuit, and an output end of the first amplifier is connected with the MCU.
Specifically, the sampling resistor is a resistor R27, the voltage drop acquisition circuit comprises a resistor R28, a resistor R29 and a capacitor C10, the capacitor C10 is connected in parallel with two ends of a resistor R27, the resistor R28 and the resistor R29 are respectively connected with two ends of the resistor R27 connected with the capacitor C10, and two ends of the capacitor C10 are also electrically connected with the amplifier;
the amplifying circuit comprises an amplifier U1B, a positive phase input end and a negative phase input end of an amplifier U1B are connected with two ends of a capacitor C10, and an output end of the amplifier U1B is connected with a resistor R32 in series and then is connected with the MCU;
when a load is connected, current flows through the resistor R27, the voltage drop acquisition circuit acquires the voltage drop of the resistor R27 and sends the voltage drop to the amplification circuit, the input end of the amplifier U1B inputs the voltage drop of the resistor R27, the amplifier U1B amplifies the input voltage and sends the amplified voltage to the MCU, and the MCU judges that the load is connected currently according to an amplification signal of the amplification circuit;
when the load is removed, the voltage drop on the resistor R27 disappears, the amplifier U1B of the amplifying circuit cannot detect the voltage needing to be amplified, so that no voltage is output at the output end of the amplifying circuit, when the MCU continuously detects for 5S, no voltage is input, the MCU judges that the load is disconnected, and the MCU controls the switch to be disconnected, so that the whole circuit enters a dormant state.
Further, the switch unit includes the MOS pipe, the D utmost point of MOS pipe with the access unit is connected, the G utmost point of MOS pipe with MCU connects, the S utmost point ground connection of MOS pipe.
Specifically, the MOS tube is an N-type MOS tube, and the G pole of the MOS tube is also connected with the short-circuit protection unit, so that the MOS tube is controlled to be closed through the short-circuit protection unit when the load is short-circuited.
Further, the activation unit includes a resistor R65, a resistor R25, a diode D10, and a capacitor C21;
the one end of resistance R65 with the access unit is connected, resistance R65's the other end ground connection, resistance R25's one end is inserted resistance R65 with between the access unit, resistance R25's the other end with MCU connects, diode D10's input ground connection, diode D10's output inserts resistance R25 with between the MCU, electric capacity C21's one end with MCU connects, electric capacity C21's the other end ground connection.
Referring to fig. 2, the automatic wake-up power supply device provided in this embodiment includes a battery, a housing, a main control board, and the automatic wake-up circuit, where the automatic wake-up circuit is disposed on the main control board, and the battery is connected with the main control board and installed inside the housing; the shell is characterized by further comprising an external interface, wherein the external interface is used for being connected with external load equipment, the external interface is arranged on the side wall of the shell, and the external interface is connected with the main control board.
Specifically, the casing is including doing procapsid and backshell casing, procapsid and back casing pass through the block and connect, connected modes such as screw connection are all equal, battery and main control board are all installed in the casing, the battery is connected with the main control board, as power input, the external tapping is used for connecting external load equipment, when external load equipment is connected with the external tapping, can supply power for the load immediately through the automatic circuit of awakening up, and the automatic circuit of awakening up when the load removes can the self-closing switch, reduce the energy consumption and prevent the short circuit.
Further, still include the handle, handle and casing swing joint can awaken the removal of power supply unit to the automation through the handle.
It should be noted that other contents of the auto-wake-up circuit disclosed in the present invention can be referred to in the prior art, and are not described herein again.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, it should be noted that the descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An auto-wake-up circuit, the auto-wake-up circuit comprising:
the access unit is used for accessing a load;
the activation unit is used for sending an activation signal to the MCU;
the detection unit is used for detecting whether the load is continuously connected;
the switch unit is used for conducting the power supply and the access unit;
the MCU is used for controlling the switch unit;
the input end of the access unit is used for accessing a load, the output end of the access unit is connected with the input end of the detection unit, the output end of the detection unit is connected with the MCU, the first end of the switch unit is connected with the access unit, the second end of the switch unit is connected with the MCU, and the third end of the switch unit is grounded; the output end of the MCU is connected with the switch unit, the detection unit is connected between the power supply and the switch unit, and the output end of the detection unit is connected with the MCU;
when a load is connected to the access unit, the activation unit outputs an activation signal to the MCU, the MCU controls the switch unit to be conducted according to the activation signal, and after the power supply is conducted with the switch unit, the detection unit continuously detects the conduction condition of the power supply and the switch unit and sends a detection signal to the MCU.
2. The automatic wake-up circuit according to claim 1, further comprising a short-circuit protection unit, wherein the short-circuit protection unit comprises a comparison circuit and a protection circuit, an input terminal of the comparison circuit is connected with an output terminal of the detection unit, a first output terminal of the comparison circuit is connected with the MCU, a second output terminal of the comparison circuit is connected with an input terminal of the protection circuit, and an output terminal of the protection circuit is connected with the switch unit;
the comparison circuit is used for judging whether the current voltage is greater than a preset voltage or not, sending an alarm signal to the MCU when the current voltage is greater than the preset voltage, and outputting a high level to the protection circuit, and the protection circuit closes the switch unit according to the high level.
3. The automatic wake-up circuit according to claim 2, wherein the comparator circuit comprises a comparator U1A, the in-phase terminal of the comparator U1A is connected to the output terminal of the detection unit, the out-phase terminal of the comparator U1A is connected to the MCU, and the output terminal of the comparator U1A is connected to the short-circuit protection unit and the MCU respectively.
4. The automatic wake-up circuit according to claim 1, wherein the access unit comprises a plurality of access terminals and a first capacitor connected in parallel with the access terminals, each access terminal is provided with a positive access point and a negative access point, two ends of the first capacitor are respectively connected with the positive access point and the negative access point, when a load is connected with the access terminals, the positive access point and the negative access point are conducted through the load, the first capacitor releases an instantaneous current, and the current sequentially flows through the positive access point, the load, the negative access point and the input end of the activation unit.
5. The automatic wake-up circuit according to claim 1, wherein the detection unit comprises an acquisition circuit and an amplification circuit, one end of the acquisition circuit is connected between the power supply and the switch unit, the other end of the acquisition circuit is connected with one end of the amplification circuit, and the other end of the amplification circuit is connected with the MCU; the acquisition circuit is used for detecting whether a load is connected or not, if so, a voltage signal is sent to the amplifying circuit, and the amplifying circuit is used for amplifying the voltage signal and outputting the amplified voltage signal to the MCU.
6. The automatic wake-up circuit according to claim 5, wherein the collecting circuit comprises a sampling resistor and a voltage drop collecting circuit, one end of the collecting circuit is connected between a power supply and the switch unit, the other end of the sampling resistor is grounded, the voltage drop collecting circuit is connected in parallel with two ends of the sampling resistor, and an output end of the voltage drop collecting circuit is connected with an input end of the amplifying circuit; the voltage drop acquisition circuit is used for acquiring the voltage drop of the acquisition circuit and outputting a voltage signal to the amplification circuit.
7. The automatic wake-up circuit according to claim 5, wherein the amplifying circuit comprises a first amplifier, a non-inverting input terminal and a directional input terminal of the first amplifier are connected to the output terminal of the collecting circuit, and an output terminal of the first amplifier is connected to the MCU.
8. The automatic wake-up circuit according to claim 6, wherein the switching unit comprises an MOS transistor, the D pole of the MOS transistor is connected to the access unit, the G pole of the MOS transistor is connected to the MCU, and the S pole of the MOS transistor is grounded.
9. The automatic wake-up circuit according to claim 1, wherein the activation unit comprises a resistor R65, a resistor R25, a diode D10 and a capacitor C21;
the one end of resistance R65 with the access unit is connected, resistance R65's the other end ground connection, resistance R25's one end is inserted resistance R65 with between the access unit, resistance R25's the other end with MCU connects, diode D10's input ground connection, diode D10's output inserts resistance R25 with between the MCU, electric capacity C21's one end with MCU connects, electric capacity C21's the other end ground connection.
10. An automatic wake-up power supply device, which is characterized by comprising a battery, a shell, a main control board and the automatic wake-up circuit of any one of claims 1 to 9, wherein the automatic wake-up circuit is arranged on the main control board, and the battery is connected with the main control board and is arranged in the shell; the shell is characterized by further comprising an external interface, wherein the external interface is used for being connected with external load equipment, the external interface is arranged on the side wall of the shell, and the external interface is connected with the main control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606404.7U CN216312699U (en) | 2021-07-14 | 2021-07-14 | Automatic wake-up circuit and power supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606404.7U CN216312699U (en) | 2021-07-14 | 2021-07-14 | Automatic wake-up circuit and power supply device |
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| CN216312699U true CN216312699U (en) | 2022-04-15 |
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| CN202121606404.7U Active CN216312699U (en) | 2021-07-14 | 2021-07-14 | Automatic wake-up circuit and power supply device |
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| CN (1) | CN216312699U (en) |
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2021
- 2021-07-14 CN CN202121606404.7U patent/CN216312699U/en active Active
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