CN210693486U - Standby activation circuit and electronic equipment - Google Patents
Standby activation circuit and electronic equipment Download PDFInfo
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- CN210693486U CN210693486U CN201921598305.1U CN201921598305U CN210693486U CN 210693486 U CN210693486 U CN 210693486U CN 201921598305 U CN201921598305 U CN 201921598305U CN 210693486 U CN210693486 U CN 210693486U
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Abstract
The utility model discloses a standby activation circuit and electronic equipment, the standby activation circuit comprises a battery pack, a controller, a first voltage conversion circuit, a second voltage conversion circuit, an activation circuit, a signal acquisition circuit, a drive circuit and a system switch; a plurality of output ends of the activation circuit are connected with a plurality of first input ends of the controller; the first output end of the controller is connected with the controlled end of the first voltage conversion circuit; the input end of the first voltage conversion circuit is connected with the positive end of a power supply of the battery pack, and the output end of the first voltage conversion circuit is connected with the power supply end of the controller; the input end of the second voltage conversion circuit is connected with the positive end of the power supply of the battery pack, and the output end of the second voltage conversion circuit is connected with the power supply end of the controller. The technical scheme of the utility model, can adopt multiple activation mode activation battery system.
Description
Technical Field
The utility model relates to a power technical field, in particular to standby activation circuit and electronic equipment.
Background
In a power system, when the system does not work, the power system is often controlled to enter a sleep mode so as to save the power consumption of the system, and after a battery system enters the sleep mode, the system can be recovered to work normally only when the power system is awakened again.
However, the current way of waking up the power system is single, and the single way of waking up limits the application range of the power system.
SUMMERY OF THE UTILITY MODEL
The utility model provides a standby activation circuit and electronic equipment aims at realizing activating power supply system with multiple activation mode.
To achieve the above object, the present invention provides a standby activation circuit, which includes a battery pack, a controller, a first voltage conversion circuit, a second voltage conversion circuit, an activation circuit, an analog front end, and a system switch; wherein the content of the first and second substances,
a plurality of output terminals of the activation circuit are connected with a plurality of first input terminals of the controller; a first output end of the controller is connected with a controlled end of the first voltage conversion circuit;
the input end of the first voltage conversion circuit is connected with the positive power supply end of the battery pack, and the output end of the first voltage conversion circuit is connected with the power supply end of the controller; the input end of the second voltage conversion circuit is connected with the positive power supply end of the battery pack, and the output end of the second voltage conversion circuit is connected with the power supply end of the controller;
a first output end of the analog front end is connected with a second input end of the controller, and a second output end of the analog front end is connected with a controlled end of the system switch; the input end of the system switch is connected with a load, and the output end of the system switch is connected with the negative end of the power supply of the battery pack.
Optionally, the activation circuit includes a switch activation circuit, a charging activation circuit, a communication activation circuit, a load activation circuit, and a fingerprint activation circuit;
the output end of the switch activation circuit, the output end of the charging activation circuit, the output end of the communication activation circuit, the output end of the load activation circuit and the output end of the fingerprint activation circuit are correspondingly connected with a plurality of first input ends of the controller.
Optionally, the switch activation circuit includes a control switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, and a first optical coupler;
one end of the control switch is connected with a first power supply of a system, the other end of the control switch is connected with the first end of the first resistor, and the other end of the control switch is also connected with the first end of the first optical coupler; the second end of the first resistor is connected with the first end of the second resistor, and the second end of the second resistor is grounded;
the second end of the first optical coupler is connected with the first end of the second resistor, the third end of the first optical coupler is connected with the first end of the third resistor, the third end of the first optical coupler is also connected with the first end of the fourth resistor, and the second end of the fourth resistor is grounded; the fourth end of the first optical coupler is connected with a second power supply of the system;
the second end of the third resistor is connected with the first input end of the controller, the second end of the third resistor is further connected with one end of the first capacitor, and the other end of the first capacitor is grounded.
Optionally, the charging activation circuit includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor, and a second optical coupler;
the first end of the fifth resistor is connected with the positive end of a power supply of external charging equipment, the second end of the fifth resistor is connected with the first end of the sixth resistor, and the second end of the sixth resistor is connected with the negative end of the power supply of the charging equipment;
the first end of the second optical coupler is connected with the positive power supply end of the charging equipment, the second end of the second optical coupler is connected with the first end of the sixth resistor, the third end of the second optical coupler is connected with the first end of the seventh resistor, the third end of the second optical coupler is further connected with the first end of the eighth resistor, the second end of the eighth resistor is grounded, and the fourth end of the second optical coupler is connected with the second power supply of the system;
the second end of the seventh resistor is connected with the first input end of the controller, the second end of the seventh resistor is further connected with one end of the second capacitor, and the other end of the second capacitor is grounded.
Optionally, the communication activation circuit includes a first data line, a second data line, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a third capacitor, and a third optical coupler;
a first end of the ninth resistor is connected with the first data line, a second end of the ninth resistor is connected with a first end of the tenth resistor, and a second end of the tenth resistor is connected with the second data line;
the first end of the third optical coupler is connected with the first data line, the second end of the third optical coupler is connected with the first end of the tenth resistor, the third end of the third optical coupler is connected with the first end of the eleventh resistor, the third end of the third optical coupler is further connected with the first end of the twelfth resistor, the second end of the twelfth resistor is grounded, and the fourth end of the third optical coupler is connected with a second power supply of a system;
the second end of the eleventh resistor is connected with the first input end of the controller, the second end of the eleventh resistor is further connected with one end of the third capacitor, and the other end of the third capacitor is grounded.
Optionally, the load activation circuit includes a thirteenth resistor, a diode, a first transient diode, a second transient diode, a first electronic switch, and a second electronic switch;
a first end of the thirteenth resistor is connected with an external load, a second end of the thirteenth resistor is connected with an anode of the diode, and a cathode of the diode is connected with a cathode of the first transient diode;
the anode of the first transient diode is connected with the controlled end of the first electronic switch, the anode of the first transient diode is also connected with the controlled end of the second electronic switch, the anode of the first transient diode is also connected with the cathode of the second transient diode, and the anode of the second transient diode is grounded;
the input end of the first electronic switch is connected with a second power supply of the system, the output end of the first electronic switch is connected with the first input end of the controller, the output end of the first electronic switch is further connected with the input end of the second electronic switch, and the output end of the second electronic switch is grounded.
Optionally, the first electronic switch is an N-MOS transistor, and the second electronic switch is a P-MOS transistor.
Optionally, the fingerprint activation circuit includes a fingerprint module, a fourteenth resistor, and a fourth capacitor;
the input end of the fingerprint module is connected with an external fingerprint device, the power end of the fingerprint module is connected with a second power supply of the system, the power end of the fingerprint module is also connected with one end of the fourth capacitor, and the other end of the fourth capacitor is grounded; the output end of the fingerprint module is connected with the first input end of the controller, the output end of the fingerprint module is further connected with the first end of the fourteenth resistor, and the second end of the fourteenth resistor is grounded.
Optionally, the first voltage conversion circuit is a DC-DC converter, and the second voltage conversion circuit is a linear voltage stabilizing circuit.
To achieve the above object, the present invention also provides an electronic device, which includes the standby activation circuit as described in any one of the above items.
The technical scheme of the utility model, when the system got into standby mode, the first voltage conversion circuit shutdown of controller control to make each circuit module stop work in the system, not producing the consumption, and under standby mode, provide the electric current of low-power consumption by second voltage conversion circuit for the controller, so set up, in order to reach the purpose that reduces the system power consumption, improve the stand-by time of group battery. When the controller receives an activation signal output by the activation circuit, the controller controls the first voltage conversion circuit to start operation so as to enable the system to recover normal work, at the moment, the analog front end collects the state information of the battery pack and transmits the collected state information of the battery pack to the controller for analysis processing, and if the analysis result shows that the state information of the battery pack does not accord with the preset condition, the analog front end controls the system switch to be switched off so as to enable the whole system to be in a broken circuit state and achieve the purpose of protecting the system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 block diagram of an embodiment of a standby activation circuit of the present invention;
fig. 2 is a block diagram of another embodiment of the standby activation circuit of the present invention;
FIG. 3 is a circuit diagram of an embodiment of the switch activation circuit of FIG. 2;
FIG. 4 is a circuit diagram of an embodiment of the charge activation circuit of FIG. 2;
FIG. 5 is a circuit diagram of an embodiment of the communication activation circuit of FIG. 2;
FIG. 6 is a circuit diagram of an embodiment of the load activation circuit of FIG. 2;
FIG. 7 is a circuit diagram of an embodiment of the fingerprint activation circuit shown in FIG. 2.
The reference numbers illustrate:
| 10 | |
20 | First |
| 30 | Second |
40 | |
| 50 | |
60 | |
| 70 | |
80 | Load(s) |
| 502 | |
501 | |
| 504 | |
503 | Load activation circuit |
| OC1 | First |
505 | Fingerprint activation circuit |
| OC3 | Third optical coupler | OC2 | Second optical coupler |
| VCC | Second power supply | VIN | A first power supply |
| R1～R14 | First to fourteenth resistors | Q1 | First electronic switch |
| C1～C4 | First to fourth capacitors | Q2 | Second electronic switch |
| CAN H | First data line | CAN L | Second data line |
| Charge+ | Power supply positive terminal of charging equipment | Charge- | Power supply negative terminal of charging equipment |
| D1 | Diode with a high-voltage source | Z1 | First transient stateDiode with a high-voltage source |
| Z2 | Second transient diode | S1 | Control switch |
| U1 | Fingerprint module | OUT | Output terminal of activation circuit |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a standby activation circuit.
Referring to fig. 1, a standby activation circuit includes a battery pack 10, a controller 40, a first voltage conversion circuit 20, a second voltage conversion circuit 30, an activation circuit 50, an analog front end 60, and a system switch 70; a plurality of outputs of the activation circuit 50 are connected to a plurality of first inputs of the controller 40; a first output terminal of the controller 40 is connected to the controlled terminal of the first voltage conversion circuit 20; the input end of the first voltage conversion circuit 20 is connected with the positive end of the power supply of the battery pack 10, and the output end of the first voltage conversion circuit 20 is connected with the power supply end of the controller 40; the input end of the second voltage conversion circuit 30 is connected with the positive end of the power supply of the battery pack 10, and the output end of the second voltage conversion circuit 30 is connected with the power supply end of the controller 40; a first output terminal of the analog front end 60 is connected to a second input terminal of the controller 40, and a second output terminal of the analog front end 60 is connected to a controlled terminal of the system switch 70; the input terminal of the system switch 70 is connected to the load 80, and the output terminal of the system switch 70 is connected to the negative terminal of the power supply of the battery pack 10.
The controller 40 can be a microprocessor such as a single chip microcomputer, a DSP and an FPGA; a software program for analyzing and processing the activation signal outputted from the activation circuit 50 and a software program for analyzing and processing the status information of the battery pack 10 collected by the signal collection circuit 60 may be integrated in the controller 40.
The first voltage converting circuit 20 may be a DC-DC converter, for example, a DC-DC converter with an output voltage of 3.3V and an output current of an ampere level, such as a DC-DC converter model BD9G341AEFJ, but is not limited thereto and may be determined according to actual needs. The first voltage conversion circuit 20 is configured to convert the voltage and the current output by the battery pack 10 into suitable voltages and currents, and then supply power to the controller 40 and other circuits, such as an RS485 module, a ROLA module, and the like, so that each module operates normally.
The second voltage converting circuit 30 may be a low-power linear voltage regulator circuit, for example, a linear voltage regulator circuit with an output voltage of 3.3V and an output current of milliampere-volt level. The second voltage conversion circuit 30 is configured to supply power to the controller 40 when the system enters the sleep mode.
The activation circuit 50 at least includes various activation circuits, such as a switch activation circuit 501, a charging activation circuit 502, a communication activation circuit 504, a load activation circuit 503, a fingerprint activation circuit 505, and the like, and is configured to generate an activation signal and output the activation signal to the controller 40 when receiving an activation operation instruction from a user.
The analog front end 60 is configured to collect status information of the battery pack 10, such as a voltage of each string of cells of the battery pack 10, a current flowing through the system switch 70, and a temperature of the battery pack 10, and convert the collected status information of the battery pack 10 into corresponding data to be transmitted to the controller 40. The analog front end 60 is an integrated circuit, and can communicate data with the controller 40 and control the system switch 70 to be turned on or off according to a control command of the controller 40.
The system switch 70 may be various transistor switches, such as a transistor, a MOS transistor, etc.
Specifically, when the system is in the non-standby mode, the first voltage conversion circuit 20 converts the voltage and current output by the battery pack 10 into suitable voltage and current to power the controller 40 and other circuits, for example, to output a voltage of 3.3V, and the current at an ampere level to power the controller 40 and other circuits, such as an RS485 module, a ROLA module, and the like. At this time, the second voltage converting circuit 30 also converts the voltage and the current output by the battery pack 10 into a certain voltage and current to supply power to the controller 40, and since the driving capability of the first voltage converting circuit 20 is much greater than that of the second voltage converting circuit 30, the first voltage converting circuit 20 supplies power to the controller 40 when the first voltage converting circuit 20 and the second voltage converting circuit 30 are both turned on.
When the system enters the standby mode, the controller 40 outputs a control signal to the first voltage converting circuit 20 to control the first voltage converting circuit 20 to stop working, at this time, other circuit modules powered by the first voltage converting circuit 20 also stop working, and the controller 40 provides a very small sleep current by the second voltage converting circuit 30 with ultra-low power consumption. Therefore, in the standby mode, the power consumption of the system is extremely low, the standby time of the battery pack 10 can be greatly prolonged, and the safety of the system is improved.
When the system needs to be woken up, the activation circuit 50 outputs an activation signal to the controller 40, and the activation signal may be a high-level electrical signal or a low-level electrical signal, which may be set according to actual needs. The activation circuit 50 includes one or more activation modes, such as charging activation, data communication activation, key on/off activation, load activation, fingerprint activation, remote activation, etc., and of course, a timing activation may be set in the controller 40 in advance, and may be determined according to actual needs. The controller 40 outputs a control signal to the first voltage conversion circuit 20 to control the first voltage conversion circuit 20 to operate when receiving the activation signal output from the activation circuit 50 or activating an action at a timing set inside the controller 40. After the first voltage conversion circuit 20 is turned on to operate, the first voltage conversion circuit 20 converts the voltage and the current of the battery pack 10 into appropriate voltage and current to supply power to each module of the system, and the system operates normally.
In the normal operation process of the system, the current state information of the battery pack 10 is collected in real time through the simulation front end 60, and the collected state information of the battery pack 10 is converted into corresponding data and then transmitted to the controller 40, so that the controller 40 can analyze and process the data. When the controller 40 calls its internal programs and modules to analyze and process the received data, if the analysis result shows that the state information of the battery pack 10 does not satisfy the preset condition, for example, the current exceeds the preset current, the voltage exceeds the preset voltage, or the temperature exceeds the preset temperature, etc., the controller 40 outputs a control command to the analog front end 60, and the analog front end 60 controls the system switch 70 to be turned off, where the control command may be a high-level control signal or a low-level control signal, and may be set according to the performance of the system switch 70. After the system switch 70 is switched off, the whole system is in an open circuit state, all modules are in a power-off state until the circuit is recovered to be normal, and by the arrangement, the system can be effectively protected, and the safety of the system is improved.
According to the technical scheme of the embodiment, when the system enters the standby mode, the controller 40 controls the first voltage conversion circuit 20 to stop operating, so that each circuit module in the system stops working and does not generate power consumption, and in the standby mode, the second voltage conversion circuit 30 provides low-power-consumption current for the controller 40, so that the power consumption of the system is reduced, and the standby time of the battery pack 10 is prolonged. When the controller 40 receives the activation signal output by the activation circuit 50, the controller 40 controls the first voltage conversion circuit 20 to start operation, so that the system returns to normal operation. At this time, the analog front end 60 collects the state information of the battery pack 10 in real time, and transmits the collected state information to the controller 40 for analysis, if the analysis result shows that the state information of the battery pack 10 does not meet the preset condition, the controller 40 sends a control instruction to the analog front end 60, and the analog front end 60 controls the system switch 70 to be switched off according to the control instruction, so that the whole system is in an open circuit state, and the purpose of protecting the system is achieved.
In one embodiment, referring to fig. 2, the activation circuit 50 includes a switch activation circuit 501, a charging activation circuit 502, a communication activation circuit 504, a load activation circuit 503, and a fingerprint activation circuit 505;
the output terminal of the switch activation circuit 501, the output terminal of the charging activation circuit 502, the output terminal of the communication activation circuit 504, the output terminal of the load activation circuit 503, and the output terminal of the fingerprint activation circuit 505 are connected to a plurality of first input terminals of the controller 40.
Specifically, the output end of each activation circuit is connected to one IO port of the controller 40, that is, the output ends of the plurality of activation circuits are connected to a plurality of IOs of the controller 40. When one or more of the activation circuits receives an activation operation instruction from a user, for example, when the user closes a switch in the switch activation circuit 501, the switch activation circuit generates an activation signal and outputs the activation signal to the controller 40 to wake up the system. By arranging a plurality of activation circuits, a plurality of activation modes are provided for users so as to meet the application of a plurality of practical occasions.
In an embodiment, referring to fig. 3, the switch activation circuit 501 includes a control switch S1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, and a first optocoupler OC 1; one end of the control switch S1 is connected to a first power source VIN of the system, the other end of the control switch S1 is connected to a first end of the first resistor R1, and the other end of the control switch S1 is further connected to a first end of the first optocoupler OC 1; the second end of the first resistor R1 is connected with the first end of the second resistor R2, and the second end of the second resistor R2 is grounded; a second end of the first optocoupler OC1 is connected with a first end of the second resistor R2, a third end of the first optocoupler OC1 is connected with a first end of the third resistor R3, a third end of the first optocoupler OC1 is further connected with a first end of the fourth resistor R4, and a second end of the fourth resistor R4 is grounded; the fourth end of the first optical coupler OC1 is connected with a second power supply VCC of the system; a second terminal of the third resistor R3 is connected to the first input terminal of the controller 40, a second terminal of the third resistor R3 is further connected to one terminal of the first capacitor C1, and the other terminal of the first capacitor C1 is grounded.
Specifically, the output terminal of the switch activation circuit 501 is connected to one of the IO ports of the controller 40, and when the control switch S1 is turned off, the switch activation circuit 504 outputs an electrical signal with a low level to the controller 40, so that the IO port of the controller 40 is at a low level. When a user operates the control switch S1 to close the control switch S1, a forward current flows through the light emitting diode integrated with the first optocoupler OC1, the collector and the emitter of the first optocoupler OC1 are conducted, the switch activation circuit 501 outputs an electrical signal with a high level to the IO port of the controller 40, so that the IO port of the controller 40 changes from a low level to a high level, thereby waking up the controller 40, and the controller 40 further controls the first voltage conversion circuit 20 to start operation, so that the system enters an operating mode from a standby mode.
In an embodiment, referring to fig. 4, the charging activation circuit 502 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second capacitor C2, and a second optocoupler OC 2; a first end of the fifth resistor R5 is connected to a positive power supply terminal, Charge +, of an external charging device, a second end of the fifth resistor R5 is connected to a first end of the sixth resistor R6, and a second end of the sixth resistor R6 is connected to a negative power supply terminal, Charge-; a first end of the second optocoupler OC2 is connected with a positive power supply terminal Charge + of the charging device, a second end of the second optocoupler OC2 is connected with a first end of the sixth resistor R6, a third end of the second optocoupler OC2 is connected with a first end of the seventh resistor R7, a third end of the second optocoupler OC2 is further connected with a first end of the eighth resistor R8, a second end of the eighth resistor R8 is grounded, and a fourth end of the second optocoupler OC2 is connected with a second power supply VCC of the system; a second terminal of the seventh resistor R7 is connected to the first input terminal of the controller 40, a second terminal of the seventh resistor R7 is further connected to one terminal of the second capacitor C2, and the other terminal of the second capacitor C2 is grounded.
Specifically, the output end of the charging activation circuit 502 is connected to one of the IO ports of the controller 40, and when the circuit is not connected to a charging device, such as a charger or a charger, the charging activation circuit 502 outputs a low-level electrical signal to the controller 40, so that the IO port of the controller 40 is at a low level. When the charging activation circuit 502 is connected to an external charging device, a forward current flows through the light emitting diode integrated by the second optocoupler OC2, the collector and the emitter of the second optocoupler OC2 are turned on, the charging activation circuit 502 outputs an electrical signal with a high level to the controller 40, so that the IO port of the controller 40 changes from a low level to a high level, thereby waking up the controller 40, and the controller 40 further controls the first voltage conversion circuit 20 to start operation, so that the system enters an operating mode from a standby mode.
In one embodiment, referring to fig. 5, the communication activation circuit 504 includes a first data line CAN H, a second data line CAN L, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a third capacitor C3, and a third optocoupler OC 3; a first end of the ninth resistor R9 is connected to the first data line CAN H, a second end of the ninth resistor R9 is connected to a first end of the tenth resistor R10, and a second end of the tenth resistor R10 is connected to the second data line CAN L; a first end of the third optocoupler OC3 is connected with the first data line CAN H, a second end of the third optocoupler OC3 is connected with a first end of the tenth resistor R10, a third end of the third optocoupler OC3 is connected with a first end of the eleventh resistor R11, a third end of the third optocoupler OC3 is further connected with a first end of the twelfth resistor R12, a second end of the twelfth resistor R12 is grounded, and a fourth end of the third optocoupler OC3 is connected with a second power supply VCC of the system; a second terminal of the eleventh resistor R11 is connected to the first input terminal of the controller 40, a second terminal of the eleventh resistor R11 is further connected to one terminal of the third capacitor C3, and the other terminal of the third capacitor C3 is grounded.
Specifically, when the CAN bus of the communication activation circuit 504 is connected to an external device having a CAN interface, the differential information generated by the access communication enables a forward current to flow through the light emitting diode integrated by the third optocoupler OC3, the collector and the emitter of the third optocoupler OC3 are conducted, the communication activation circuit 504 outputs an electrical signal with a high level to the controller 40, so that the IO port of the controller 40 changes from a low level to a high level, thereby waking up the controller 40, and the controller 40 further controls the first voltage conversion circuit 20 to start operation, so that the system enters the operating mode from the standby mode.
In one embodiment, referring to fig. 6, the load activation circuit 503 includes a thirteenth resistor R13, a diode D1, a first transient diode Z1, a second transient diode Z2, a first electronic switch Q1, and a second electronic switch Q2; a first end of the thirteenth resistor R13 is connected to an external load 80, a second end of the thirteenth resistor R13 is connected to the anode of the diode D1, and the cathode of the diode D1 is connected to the cathode of the first transient diode Z1; the anode of the first transient diode Z1 is connected with the controlled terminal of the first electronic switch Q1, the anode of the first transient diode Z1 is further connected with the controlled terminal of the second electronic switch Q2, the anode of the first transient diode Z1 is further connected with the cathode of the second transient diode Z2, and the anode of the second transient diode Z2 is grounded; the input of the first electronic switch Q1 is connected with the second power VCC of the system, the output of the first electronic switch Q1 is connected with the first input of the controller 40, the output of the first electronic switch Q1 is also connected with the input of the second electronic switch Q2, and the output of the second electronic switch Q2 is grounded.
Specifically, the output end of the load activation circuit 503 is connected to one of the IO ports of the controller 40, when the load activation circuit 503 is not connected to a load, the first electronic switch Q1 is turned off, the second electronic switch Q2 is turned on, and the load activation circuit 503 outputs an electrical signal with a high level to the controller 40, so that the IO port of the controller 40 is at a high level. When the load activation circuit 503 is connected to a load, the first transient diode Z1 is broken down, the second transient diode Z2 stabilizes the voltage to a certain voltage, at this time, the first electronic switch Q1 is turned on, the load activation circuit 503 outputs a low-level electrical signal to the controller 40, so that the IO port of the controller 40 changes from high level to low level, thereby waking up the controller 40, the controller 40 further controls the first voltage conversion circuit 20 to start operation, and the system enters the working mode from the standby mode.
Optionally, the first electronic switch Q1 is an N-MOS transistor, the second electronic switch Q2 is a P-MOS transistor, and the first transient diode Z1 and the second transient diode Z2 are transient diodes with different specifications, so that when a load is connected, the first transient diode Z1 is broken down, and the second transient diode Z2 generates a voltage stabilizing effect.
In one embodiment, referring to fig. 7, the fingerprint activation circuit 505 includes a fingerprint module U1, a fourteenth resistor R14, and a fourth capacitor C4; the input end of the fingerprint module U1 is connected to an external fingerprint device, the power end of the fingerprint module U1 is connected to a second power VCC of the system, the power end of the fingerprint module U1 is further connected to one end of the fourth capacitor C4, and the other end of the fourth capacitor C4 is grounded; an output terminal of the fingerprint module U1 is connected to a first input terminal of the controller 40, an output terminal of the fingerprint module U1 is further connected to a first terminal of the fourteenth resistor R14, and a second terminal of the fourteenth resistor R14 is grounded.
Specifically, the input end of the fingerprint module U1 is connected to an external fingerprint device, and when a fingerprint signal input by the external fingerprint device is not received, the fingerprint module U1 outputs an electrical signal of a low level to the controller 40, so that the IO port of the controller 40 is at a low level. When a user operates the external fingerprint device, the external fingerprint device outputs a fingerprint signal to the fingerprint module U1, and the fingerprint module U1 correspondingly outputs a high-level electrical signal to the controller 40, so that the IO port of the controller 40 changes from a low level to a high level, thereby waking up the controller 40, and the controller 40 further controls the first voltage conversion circuit 20 to start operation, and the system enters a working mode from a standby mode.
The utility model also provides an electronic equipment, electronic equipment includes as above arbitrary the standby activation circuit. The detailed structure of the standby activation circuit can refer to the above embodiments, and is not described herein again; it can be understood that, because the utility model discloses used above-mentioned standby activation circuit among the electronic equipment, consequently, the utility model discloses electronic equipment's embodiment includes all technical scheme of the whole embodiments of above-mentioned standby activation circuit, and the technical effect who reaches is also identical, no longer explains here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A standby activation circuit is characterized by comprising a battery pack, a controller, a first voltage conversion circuit, a second voltage conversion circuit, an activation circuit, an analog front end and a system switch; wherein the content of the first and second substances,
a plurality of output terminals of the activation circuit are connected with a plurality of first input terminals of the controller; a first output end of the controller is connected with a controlled end of the first voltage conversion circuit;
the input end of the first voltage conversion circuit is connected with the positive power supply end of the battery pack, and the output end of the first voltage conversion circuit is connected with the power supply end of the controller; the input end of the second voltage conversion circuit is connected with the positive power supply end of the battery pack, and the output end of the second voltage conversion circuit is connected with the power supply end of the controller;
a first output end of the analog front end is connected with a second input end of the controller, and a second output end of the analog front end is connected with a controlled end of the system switch; the input end of the system switch is connected with a load, and the output end of the system switch is connected with the negative end of the power supply of the battery pack.
2. The standby activation circuit of claim 1, wherein the activation circuit comprises a switch activation circuit, a charging activation circuit, a communication activation circuit, a load activation circuit, and a fingerprint activation circuit;
the output end of the switch activation circuit, the output end of the charging activation circuit, the output end of the communication activation circuit, the output end of the load activation circuit and the output end of the fingerprint activation circuit are correspondingly connected with a plurality of first input ends of the controller.
3. The standby activation circuit of claim 2, wherein the switch activation circuit comprises a control switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, and a first optocoupler;
one end of the control switch is connected with a first power supply of a system, the other end of the control switch is connected with the first end of the first resistor, and the other end of the control switch is also connected with the first end of the first optical coupler; the second end of the first resistor is connected with the first end of the second resistor, and the second end of the second resistor is grounded;
the second end of the first optical coupler is connected with the first end of the second resistor, the third end of the first optical coupler is connected with the first end of the third resistor, the third end of the first optical coupler is also connected with the first end of the fourth resistor, and the second end of the fourth resistor is grounded; the fourth end of the first optical coupler is connected with a second power supply of the system;
the second end of the third resistor is connected with the first input end of the controller, the second end of the third resistor is further connected with one end of the first capacitor, and the other end of the first capacitor is grounded.
4. The standby activation circuit of claim 2, wherein the charge activation circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor, and a second optocoupler;
the first end of the fifth resistor is connected with the positive end of a power supply of external charging equipment, the second end of the fifth resistor is connected with the first end of the sixth resistor, and the second end of the sixth resistor is connected with the negative end of the power supply of the charging equipment;
the first end of the second optical coupler is connected with the positive power supply end of the charging equipment, the second end of the second optical coupler is connected with the first end of the sixth resistor, the third end of the second optical coupler is connected with the first end of the seventh resistor, the third end of the second optical coupler is further connected with the first end of the eighth resistor, the second end of the eighth resistor is grounded, and the fourth end of the second optical coupler is connected with the second power supply of the system;
the second end of the seventh resistor is connected with the first input end of the controller, the second end of the seventh resistor is further connected with one end of the second capacitor, and the other end of the second capacitor is grounded.
5. The standby activation circuit of claim 2, wherein the communication activation circuit comprises a first data line, a second data line, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a third capacitor, and a third optocoupler;
a first end of the ninth resistor is connected with the first data line, a second end of the ninth resistor is connected with a first end of the tenth resistor, and a second end of the tenth resistor is connected with the second data line;
the first end of the third optical coupler is connected with the first data line, the second end of the third optical coupler is connected with the first end of the tenth resistor, the third end of the third optical coupler is connected with the first end of the eleventh resistor, the third end of the third optical coupler is further connected with the first end of the twelfth resistor, the second end of the twelfth resistor is grounded, and the fourth end of the third optical coupler is connected with a second power supply of a system;
the second end of the eleventh resistor is connected with the first input end of the controller, the second end of the eleventh resistor is further connected with one end of the third capacitor, and the other end of the third capacitor is grounded.
6. The standby activation circuit of claim 2, wherein the load activation circuit includes a thirteenth resistor, a diode, a first transient diode, a second transient diode, a first electronic switch, and a second electronic switch;
a first end of the thirteenth resistor is connected with an external load, a second end of the thirteenth resistor is connected with an anode of the diode, and a cathode of the diode is connected with a cathode of the first transient diode;
the anode of the first transient diode is connected with the controlled end of the first electronic switch, the anode of the first transient diode is also connected with the controlled end of the second electronic switch, the anode of the first transient diode is also connected with the cathode of the second transient diode, and the anode of the second transient diode is grounded;
the input end of the first electronic switch is connected with a second power supply of the system, the output end of the first electronic switch is connected with the first input end of the controller, the output end of the first electronic switch is further connected with the input end of the second electronic switch, and the output end of the second electronic switch is grounded.
7. The standby activation circuit of claim 6, wherein said first electronic switch is an N-MOS transistor and said second electronic switch is a P-MOS transistor.
8. The standby activation circuit of claim 2, wherein the fingerprint activation circuit includes a fingerprint module, a fourteenth resistor, and a fourth capacitor;
the input end of the fingerprint module is connected with an external fingerprint device, the power end of the fingerprint module is connected with a second power supply of the system, the power end of the fingerprint module is also connected with one end of the fourth capacitor, and the other end of the fourth capacitor is grounded; the output end of the fingerprint module is connected with the first input end of the controller, the output end of the fingerprint module is further connected with the first end of the fourteenth resistor, and the second end of the fourteenth resistor is grounded.
9. The standby activation circuit of claim 1, wherein the first voltage conversion circuit is a DC-DC converter and the second voltage conversion circuit is a linear voltage regulator circuit.
10. An electronic device, characterized in that it comprises a standby activation circuit according to any one of claims 1 to 9.
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| CN201921598305.1U CN210693486U (en) | 2019-09-24 | 2019-09-24 | Standby activation circuit and electronic equipment |
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| CN201921598305.1U CN210693486U (en) | 2019-09-24 | 2019-09-24 | Standby activation circuit and electronic equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865091A (en) * | 2021-02-20 | 2021-05-28 | 阳光电源股份有限公司 | Energy storage system and switching power supply thereof |
| WO2021258367A1 (en) * | 2020-06-24 | 2021-12-30 | 东莞新能安科技有限公司 | Control circuit, battery management system, and electrochemical device |
| CN114142567A (en) * | 2021-12-06 | 2022-03-04 | 珠海冠宇动力电源有限公司 | Battery management circuit and battery device |
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2019
- 2019-09-24 CN CN201921598305.1U patent/CN210693486U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258367A1 (en) * | 2020-06-24 | 2021-12-30 | 东莞新能安科技有限公司 | Control circuit, battery management system, and electrochemical device |
| CN112865091A (en) * | 2021-02-20 | 2021-05-28 | 阳光电源股份有限公司 | Energy storage system and switching power supply thereof |
| US11929614B2 (en) | 2021-02-20 | 2024-03-12 | Sungrow Power Supply Co., Ltd. | Energy storage system and switching power supply thereof |
| CN114142567A (en) * | 2021-12-06 | 2022-03-04 | 珠海冠宇动力电源有限公司 | Battery management circuit and battery device |
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