Starting circuit, functional module, electronic equipment and accessories thereof

Abstract

The utility model relates to a starting circuit, a functional module, electronic equipment and accessories thereof. The starting circuit comprises an isolation module and a trigger module, the trigger end of the isolation module is connected with the trigger output end of the trigger module; the isolation module is located in a power supply loop through which a power supply provides working power for a power utilization system; the trigger input end of the trigger module is used for being coupled with charged equipment; and the isolation module is used for selectively connecting or disconnecting the power supply loop based on the coupling condition of the trigger input end of the trigger module and the charged equipment. According to the invention, the operation of non-inductive power supply to the charged equipment can be realized, the use convenience and safety are improved, and the risk of false triggering does not exist, so that unnecessary power loss is avoided. And the operation of providing charging power for the charged equipment through non-inductive disconnection can be realized, and extra unnecessary power loss can be avoided through timely power off.

Description

Technical Field

[0001] The present disclosure relates to the field of charging technology, and in particular to a starting circuit, a functional module, an electronic device and accessories thereof. Background Art

[0002] Based on power consumption considerations, if the mobile power supply is not charging the terminal, the mobile power supply is in the off state; if the mobile power supply is connected to the charging port of the terminal, a manual button is required to trigger the mobile power supply to switch to the on state, thereby waking up the mobile power supply to charge the terminal. This is less convenient and there is a problem of false triggering, resulting in additional unnecessary power loss of the mobile power supply. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a starting circuit, a functional module, an electronic device and accessories thereof.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a startup circuit, comprising:

[0005] Isolation module, trigger module;

[0006] The triggering end of the isolation module is connected to the triggering output end of the triggering module;

[0007] The isolation module is in a power supply circuit in which a power source provides working power to a power consumption system;

[0008] The trigger input terminal of the trigger module is used to couple with the charged device;

[0009] The isolation module is used to selectively open or close the power supply circuit based on the coupling condition between the trigger input terminal of the trigger module and the charged device.

[0010] Optionally, the isolation module includes: an isolation subcircuit;

[0011] The first end of the isolation subcircuit is configured as a voltage input end of the isolation module, and the voltage input end is used to couple with the positive electrode of the power supply;

[0012] The second end of the isolation subcircuit is configured as a trigger end of the isolation module;

[0013] The third end of the isolation sub-circuit is configured as a voltage output end of the isolation module, and the voltage output end is used to be coupled to the power consumption system.

[0014] Optionally, the isolation sub-circuit includes: a MOS tube Q1;

[0015] The source of the MOS transistor Q1 is configured as the first end of the isolation sub-circuit, the gate of the MOS transistor Q1 is configured as the second end of the isolation sub-circuit, and the drain of the MOS transistor Q1 is configured as the third end of the isolation sub-circuit.

[0016] Optionally, the trigger module includes: a voltage bias subcircuit and a current bias subcircuit;

[0017] The first end of the voltage bias subcircuit is configured as a voltage input end of the trigger module, and the voltage input end of the trigger module is connected to the positive electrode of the power supply;

[0018] After the second end of the voltage bias subcircuit is connected to the first end of the current bias subcircuit, it is constructed as the trigger output end of the trigger module;

[0019] The second terminal of the current bias subcircuit is configured as the trigger input terminal of the trigger module.

[0020] Optionally, the trigger module includes: a trigger subcircuit;

[0021] The signal input end of the trigger subcircuit is coupled to the power button, and the signal output end of the trigger subcircuit is connected to the second end of the current bias subcircuit.

[0022] Optionally, the trigger subcircuit includes: a transistor Q2, a resistor R3 and a resistor R4;

[0023] The collector of the transistor Q2 is constructed as the signal output end of the trigger subcircuit, the base of the transistor Q2 is connected to the first end of the resistor R3 and the first end of the resistor R4, and the emitter of the transistor Q2 and the second end of the resistor R4 are both grounded;

[0024] The second end of the resistor R3 is configured as a signal input end of the trigger subcircuit.

[0025] Optionally, the voltage bias subcircuit includes: a resistor R1;

[0026] The first end of the resistor R1 is configured as a first end of the voltage bias subcircuit, and the second end of the resistor R1 is configured as a second end of the voltage bias subcircuit.

[0027] Optionally, the current bias subcircuit includes: a resistor R2;

[0028] The first end of the resistor R2 is configured as the first end of the current bias subcircuit, and the second end of the resistor R2 is configured as the second end of the current bias subcircuit.

[0029] Optionally, the trigger input terminal of the trigger module is used to couple with the charged device through multiple ports respectively.

[0030] According to a second aspect of an embodiment of the present disclosure, a functional module is provided, comprising a startup circuit as described in any one of the first aspects.

[0031] According to a third aspect of an embodiment of the present disclosure, an electronic device is provided, comprising the startup circuit described in any one of the first aspect, or the functional module described in the second aspect.

[0032] According to a fourth aspect of an embodiment of the present disclosure, there is provided an accessory for an electronic device, comprising the startup circuit described in any one of the first aspect, or the functional module described in the second aspect.

[0033] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0034] The trigger end of the isolation module in the above-mentioned start-up circuit is connected to the trigger output end of the trigger module; the isolation module is in the power supply circuit in which the power supply provides working power to the power consumption system; the trigger input end of the trigger module is used to couple with the charged device; the isolation module is used to selectively turn on or off the power supply circuit based on the coupling condition between the trigger input end of the trigger module and the charged device, so that the isolation module turns on the power supply circuit to output the power provided by the power supply to the main system, thereby realizing the power-on of the main system and automatically starting to provide power to the charged device. The operation of providing power to the charged device without induction can be realized, which improves the convenience and safety of use, and there is no risk of false triggering, thereby avoiding unnecessary power loss. The isolation module turns on the power supply circuit to stop providing the power provided by the power supply to the main system, and the power provided by the power supply cannot be output to the main system, thereby realizing the power-off of the main system, entering the sleep mode, and automatically stopping the charging power to the charged device. The operation of providing charging power to the charged device without induction can be realized, and timely power off can also avoid additional unnecessary power loss.

[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0037] Figure 1 is a circuit diagram of a startup circuit according to an exemplary embodiment.

[0038] Figure 2 is a circuit diagram of another startup circuit according to an exemplary embodiment.

[0039] Figure 3 It is a schematic diagram of connection pins of a type-c interface according to an exemplary embodiment.

[0040] Figure 4 It is a block diagram of an electronic device according to an exemplary embodiment.

[0041] Reference numerals

[0042] 100 - starting circuit, 101 - isolation module, 1011 - isolation sub-circuit, 102 - trigger module, 1021 - voltage bias sub-circuit, 1022 - current bias sub-circuit, 1023 - trigger sub-circuit. DETAILED DESCRIPTION

[0043] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0044] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0045] In the embodiment of the present disclosure, in order to achieve charging safety and convenience and avoid unnecessary power loss caused by false triggering, a starting circuit is provided. Figure 1 As shown, the startup circuit 100 includes: an isolation module 101 and a trigger module 102 .

[0046] The triggering end of the isolation module 101 is connected to the triggering output end of the triggering module 102 .

[0047] The isolation module 101 is located in a power supply circuit in which a power source provides working power to a power consumption system.

[0048] The trigger input terminal of the trigger module 102 is used to couple with a charged device.

[0049] The isolation module 101 is used to selectively open or close the power supply circuit based on the coupling condition between the trigger input terminal of the trigger module 102 and the charged device.

[0050] In the embodiment of the present disclosure, the isolation module 101 is used to, if the trigger input terminal of the trigger module 102 is successfully coupled with the charged device, turn on the power supply circuit for providing working power to the power system, so as to provide the power VBAT provided by the power supply to the power system, and the power system works based on the power provided by the power supply.

[0051] If the trigger input terminal of the trigger module 102 is disconnected from the charged device, the power supply circuit for providing working power to the power system is disconnected to stop providing the power VBAT provided by the power supply to the power system.

[0052] The power consumption system may be, for example, a main system VSYS of a mobile power supply, or a main system VSYS of a charger, or a main system VSYS of a charging gun.

[0053] In the embodiment of the present disclosure, the power supply circuit in which the isolation module 101 provides working power to the power system can isolate the power supply from the power system, and the trigger module 102 triggers the power supply circuit between the power supply and the power system to be turned on or off. Only when the coupling with the charged device is successful, the trigger module 102 can trigger the isolation module 101 to turn on the power supply circuit between the power supply and the power system, start to supply power to the power system, and the power system then provides power to the charged device, thereby improving charging safety.

[0054] When the coupling with the charged device is disconnected, the trigger module 102 can trigger the isolation module 101 to disconnect the power supply circuit between the power supply and the power consumption system, stop supplying power to the power consumption system, and the power consumption system stops working due to lack of power, and then stops supplying power to the charged device, thereby avoiding additional unnecessary power loss.

[0055] In one possible implementation, the trigger module 102 triggers the isolation module 101 to turn on or off the power supply circuit by detecting whether it is coupled with the ground wire of the charged device. If it is detected that the ground wire coupling with the charged device is successful, that is, for example, the charger is plugged into the charging port of the charged device, or the plug of the mobile power supply is plugged into the charging port of the mobile phone, the isolation module 101 is triggered to turn on the power supply circuit. If it is detected that the ground wire coupling with the charged device is disconnected, that is, for example, the charger is unplugged from the charging port of the charged device, or the plug of the mobile power supply is unplugged from the charging port of the mobile phone, the isolation module 101 is triggered to disconnect the power supply circuit.

[0056] In one possible implementation, the trigger input terminal of the trigger module 102 is connected to the power output terminal, and the power output terminal is used to couple with the ground wire in the power input terminal of the charged device. Therefore, the trigger module 102 can identify whether the charged device has been correctly connected to the charged device by detecting the voltage change between the power output terminal and the ground wire. When the voltage change is detected, the trigger module 102 generates a corresponding trigger signal and sends it to the trigger terminal of the isolation module 101. The trigger signal is used to indicate that the charged device has been correctly connected to the charged device. At this time, the isolation module 101 should turn on the power supply circuit that provides working power to the power system. If the trigger signal is not sent or a disconnect signal is received, it indicates that the charged device is not correctly connected, and the isolation module 101 should remain in a closed state to prevent the power supply from providing power to the main system.

[0057] In the disclosed embodiments, if the electronic device is a charger for a personal computer, a tablet computer, a wearable device, a mobile terminal, etc., the power source may be a power source formed by connecting to the mains and converting the AC mains into DC power. If the electronic device is a mobile power source, the power source may be a battery of the mobile power source. Similarly, if the electronic device is a high-voltage electronic device on a vehicle, the power source may be a power battery, a fuel cell, etc. of the high-voltage electronic device.

[0058] The trigger end of the isolation module is connected to the trigger output end of the trigger module; the isolation module is in the power supply circuit in which the power supply provides working power to the power consumption system; the trigger input end of the trigger module is used to couple with the charged device; the isolation module is used to selectively turn on or off the power supply circuit based on the coupling condition between the trigger input end of the trigger module and the charged device, so that the isolation module turns on the power supply circuit to output the power provided by the power supply to the main system, thereby realizing the power-on of the main system and automatically starting to provide power to the charged device. The operation of providing power to the charged device without induction can be realized, which improves the convenience and safety of use, and there is no risk of false triggering, thereby avoiding unnecessary power loss. The isolation module turns on the power supply circuit to stop providing the power provided by the power supply to the main system, and the power provided by the power supply cannot be output to the main system, thereby realizing the power off of the main system, entering the sleep mode, and automatically stopping the charging power to the charged device. The operation of providing charging power to the charged device without induction can be realized, and timely power off can also avoid additional unnecessary power loss.

[0059] Optionally, continue to see Figure 1 or Figure 2 As shown, the isolation module 101 includes: an isolation subcircuit 1011;

[0060] The first end of the isolation subcircuit 1011 is configured as a voltage input end of the isolation module 101, and the voltage input end is used to couple with the positive electrode of the power supply;

[0061] The second end of the isolation sub-circuit 1011 is configured as a trigger end of the isolation module 101;

[0062] The third end of the isolation sub-circuit 1011 is configured as a voltage output end of the isolation module 101 , and the voltage output end is used to couple with the power consumption system.

[0063] The voltage output terminal may be coupled to the power system by being directly connected to the power input terminal of the power system, or indirectly connected to the power system through, for example, a fuse, a buck-boost circuit, etc.

[0064] In the disclosed embodiment, a relay may be configured in the isolation subcircuit 1011, and then the first end of the relay contact switch and the first end of the coil may be constructed as the voltage input end of the isolation module 101, connected to the power supply. The second end of the relay contact switch is constructed as the voltage output end of the isolation module 101, connected to the power system, and the second end of the coil may be constructed as the trigger end of the isolation module 101. Then, if the power output end is connected to the ground wire in the power input end of the charged device, the coil of the relay forms a current, and under the action of the magnetic field formed by the current, the contact switch of the relay is closed, and the power supply circuit for the power supply to provide power to the power system is turned on, and the power provided by the power supply is provided to the power system, and the power system works based on the power provided by the power supply.

[0065] If the ground connection between the power output end and the power input end of the charged device is disconnected, the coil of the relay cannot form a closed loop, no current flows, the contact switch of the relay is disconnected, and the power supply circuit for the power supply to provide power to the power system is disconnected, thereby stopping the power provided by the power supply to the power system.

[0066] Optionally, continue to see Figure 1 or Figure 2 As shown, the isolation module 101 includes: a MOS tube Q1;

[0067] The source of the MOS transistor Q1 is configured as a first end of the isolation sub-circuit 1011 , the gate of the MOS transistor Q1 is configured as a second end of the isolation sub-circuit 1011 , and the drain of the MOS transistor Q1 is configured as a third end of the isolation sub-circuit 1011 .

[0068] In one possible implementation, see Figure 1 As shown, the trigger module 102 includes: a voltage bias subcircuit 1021 and a current bias subcircuit 1022 .

[0069] The first end of the voltage bias subcircuit 1021 is configured as a voltage input end of the trigger module 102 , and the voltage input end of the trigger module 102 is connected to the positive electrode of the power supply.

[0070] After the second end of the voltage bias subcircuit 1021 is connected to the first end of the current bias subcircuit 1022 , it is constructed as the trigger output end of the trigger module 102 .

[0071] The second end of the current bias subcircuit 1022 is configured as the trigger input end of the trigger module 102 .

[0072] The voltage bias subcircuit 1021 can provide the bias voltage required by the isolation module 101, limit the current flowing through the isolation module 101, and prevent the current from being too large and damaging the circuit components. The current bias subcircuit 1022 can provide the required bias current to trigger the isolation module 101 to turn on or off the power circuit of the power supply to the main system.

[0073] Among them, when the power output terminal is physically connected to the ground wire in the power input terminal of the charged device, the voltage at the second end of the current bias subcircuit 1022 changes, that is, the voltage decreases, and the voltage of the trigger module 102 decreases, triggering the isolation module 101 to turn on the power supply to the power circuit of the main system. At the same time, the voltage bias subcircuit 1021 provides the bias voltage required by the isolation module 101 to prevent the current from being too large and damaging the circuit components. When the power output terminal is physically disconnected from the ground wire in the power input terminal of the charged device, the voltage at the second end of the current bias subcircuit 1022 is restored, that is, the voltage increases, the voltage of the trigger module 102 is restored, the isolation module 101 is not triggered, and the power supply to the power circuit of the main system is disconnected. At the same time, the voltage bias subcircuit 1021 also returns to the previous voltage.

[0074] In the embodiment of the present disclosure, the voltage bias subcircuit 1021 generates a stable voltage signal, and the current bias subcircuit 1022 is mainly responsible for converting the voltage signal into a current signal, thereby realizing the trigger control of the isolation module 101 .

[0075] In an exemplary embodiment, the first end of the voltage bias subcircuit 1021 is configured as a voltage input end of the trigger module 102 and connected to the positive pole of the power supply for receiving the power supply voltage. The voltage bias subcircuit 1021 can use a constant voltage source circuit to generate a stable voltage signal, for example, it can be composed of a voltage regulator diode and a resistor. When the power supply voltage is normal, the voltage regulator diode distributes the voltage to the resistor to generate a stable voltage signal. This stable voltage signal will be sent to the current bias subcircuit 1022. After the second end of the voltage bias subcircuit 1021 is connected to the first end of the current bias subcircuit 1022, it is configured as the trigger output end of the trigger module 102. The current bias subcircuit can use a current switch circuit to realize the conversion and control of the voltage signal, for example, it can be composed of a MOS tube or other controllable switch devices. When the electronic device is connected to the charged device, the current flows through the current bias subcircuit. This current flows through the second end of the current bias subcircuit, that is, the trigger input end of the trigger module 102, forming a current loop, so that the second end of the current bias subcircuit generates a current signal. This current signal will keep the current switch device in the on state, so that the trigger end of the isolation module 101 receives the trigger signal, and then the circuit for providing power to the main system is turned on. If the ground connection between the power output end of the electronic device and the power input end of the charged device is disconnected, the current circuit will be cut off, so that the current switch device is turned off, so that the trigger end of the isolation module 101 loses the trigger signal, and then the circuit for providing power to the main system is cut off.

[0076] In summary, the voltage bias subcircuit 1021 and the current bias subcircuit 1022 of the trigger module 102 jointly realize the detection and control of the connection status between the electronic device and the charged device, thereby ensuring that the electronic device only provides power to the main system when the charging device is correctly connected, thereby improving charging safety.

[0077] In one possible implementation, see Figure 2 As shown, the trigger module 102 includes a trigger sub-circuit 1023 .

[0078] The signal input end of the trigger subcircuit 1023 is coupled to the power button of the electronic device, and the signal output end of the trigger subcircuit 1023 is connected to the second end of the current bias subcircuit 1022 .

[0079] In the embodiment of the present disclosure, when the power button is pressed, the trigger subcircuit 1023 triggers the current bias subcircuit 1022 to generate current, which causes the current switch device in the current bias subcircuit 1022 to remain in the on state, so that the trigger end of the isolation module 101 receives the trigger signal, and then the circuit for power supply to the main system is turned on. If the ground connection between the power output end of the electronic device and the power input end of the charged device is disconnected, or the power button is reset, the current circuit will be cut off, so that the current switch device is turned off, so that the trigger end of the isolation module 101 loses the trigger signal, and then the circuit for power supply to the main system is cut off.

[0080] In this way, when the power output terminal of the electronic device is connected to the charging port of the charged device, the start circuit 100 will detect the connection state and automatically start charging. Alternatively, charging can be started by pressing the power button manually.

[0081] In one possible implementation, see Figure 2 As shown, the trigger sub-circuit 1023 includes: a transistor Q2, a resistor R3 and a resistor R4.

[0082] The collector of the transistor Q2 is constructed as the signal output end of the trigger subcircuit 1023, the base of the transistor Q2 is connected to the first end of the resistor R3 and the first end of the resistor R4, and the emitter of the transistor Q2 and the second end of the resistor R4 are both grounded.

[0083] The second end of the resistor R3 is configured as a signal input end of the trigger sub-circuit 1023 .

[0084] In the embodiment of the present disclosure, the transistor Q2 may be an NPN transistor, which has a current amplification function. The resistor R3 and the resistor R4 are two voltage-dividing resistors, which are used to provide a suitable bias voltage for the transistor Q2.

[0085] See also Figure 2 As shown, the second end of the resistor R3 is connected to the PS HOLDPowerSupply Hold pin in the power button of the mobile power supply. When the mobile power supply is not powered on, if the power button PS HOLDPower Supply Hold is in the off state, that is, the power button is not pressed, there is no voltage at the second end of the resistor R3. At this time, the base voltage of the transistor Q2 is low, causing the transistor Q2 to be turned off. Since the transistor Q2 is turned off, the current bias subcircuit 1022 will not form a current loop, so that the isolation module 101 remains in the off state, disconnecting the loop for the power supply to provide power to the main system.

[0086] Furthermore, when the power button is pressed, the second end of the resistor R3 obtains a voltage. After the voltage is divided by the resistor R3 and the resistor R4, it is added to the base of the transistor Q2. When the base voltage is high enough, the transistor Q2 is turned on, and the current bias subcircuit 1022 forms a current loop, so that the isolation module 101 remains in the on state, and the power supply is turned on to provide power to the main system.

[0087] In this way, when the power output terminal of the electronic device is connected to the charging port of the charged device, the start circuit 100 will detect the connection state and automatically start charging. Alternatively, charging can be started by pressing the power button manually.

[0088] In one possible implementation, see Figure 1 or Figure 2 As shown, the voltage bias subcircuit 1021 includes: a resistor R1.

[0089] The first end of the resistor R1 is configured as the first end of the voltage bias sub-circuit 1021 , and the second end of the resistor R1 is configured as the second end of the voltage bias sub-circuit 1021 .

[0090] In one possible implementation, see Figure 1 or Figure 2 As shown, the current bias subcircuit 1022 includes: a resistor R2.

[0091] The first end of the resistor R2 is configured as the first end of the current bias sub-circuit 1022 , and the second end of the resistor R2 is configured as the second end of the current bias sub-circuit 1022 .

[0092] In a possible implementation, the trigger input terminal of the trigger module 102 is connected to a part of the ground terminals in the power output terminal of the electronic device.

[0093] In the embodiments of the present disclosure, see Figure 2 As shown, the gate of the MOS tube Q1 is connected to the first end of the resistor R2, the source of the MOS tube Q1 can be connected to the positive electrode of the battery of the mobile power supply, and the drain of the MOS tube Q1 can be coupled to the power system.

[0094] The drain of the MOS tube Q1 is connected to the input voltage VSYS pin of the power system, and the source of the MOS tube Q1 can be connected to the positive battery VBAT of the mobile power source.

[0095] The gate of the MOS transistor Q1 is connected to the source of the MOS transistor Q1 through the resistor R1.

[0096] The second end of the resistor R2 is connected to a part of the grounding component in the power output end. The grounding component connected to the second end of the resistor R2 can be connected to the ground wire in the charging port when coupled to the charging port of the charged device.

[0097] In the embodiment of the present disclosure, the second end of the resistor R2 is connected to a part of the grounding components in the power output terminal, rather than to all of the grounding components in the power output terminal. A part of the grounding components in the power output terminal is connected to the second end of the resistor R2, and another part of the grounding components in the power output terminal is connected to the negative electrode of the battery or the common grounding terminal, so as to ensure that the grounding component connected to the second end of the resistor R2 is coupled to the charging port of the charged device, and the grounding terminal of the charged device can be well grounded.

[0098] In the embodiment of the present disclosure, by coupling with the charging port of the charged device, the gate voltage of the MOS tube Q1 is adjusted, and the MOS tube Q1 can be turned on and off, thereby selectively turning on or off the power supply circuit.

[0099] The resistor R1 and the resistor R2 provide bias voltage and current for the MOS tube Q1 respectively. The resistor R1 is connected between the gate and the source of the MOS tube Q1, and can be used to provide the bias voltage required by the gate. The resistor R2 is connected between the gate of the MOS tube Q1 and a part of the grounded component at the power output end, and is used to provide the bias current required by the gate.

[0100] Furthermore, when the trigger input terminal of the trigger module 102 is successfully coupled to the charged device, the grounding component connected to the second end of the resistor R2 is connected to the ground wire in the charging port. In this way, the second end of the resistor R2 is grounded, thereby providing a bias current to the gate of the MOS tube Q1, so that the MOS tube Q1 is turned on. As a result, the power supply circuit between the power supply and the power consumption system is turned on, and the power supply provides working power to the power consumption system. For example, when the start-up circuit is applied to a mobile power supply, the main system of the mobile power supply can control the mobile power supply to provide charging power to the charged device. For example, when the start-up circuit is applied to a charger, the main system of the charger can control the conversion of the mains power to provide power to the charged device.

[0101] Furthermore, when the trigger input terminal of the trigger module 102 is disconnected from the coupling with the charged device, the grounding component connected to the second end of the resistor R2 is disconnected from the ground wire in the charging port. In this way, the second end of the resistor R2 is disconnected from the ground, thereby providing a bias current cutoff for the gate of the MOS tube Q1, so that the MOS tube Q1 is cut off, thereby disconnecting the power supply circuit between the power supply and the power consumption system. For example, when the start-up circuit is applied to a mobile power supply, the main system of the mobile power supply is powered off and stops providing charging power to the charged device. For example, when the start-up circuit is applied to a charger, the main system of the charger is powered off and can stop converting the mains power into power and providing it to the charged device.

[0102] It can be explained that when the MOS tube Q1 is turned on and the power supply loop between the power supply and the power consumption system is turned on, the resistor R1 can limit the current flowing through the MOS tube Q1 to prevent the circuit components from being damaged by excessive current.

[0103] Optionally, the trigger input terminal of the trigger module 102 is used to couple with the charged device through a plurality of ports respectively.

[0104] In the embodiment of the present disclosure, the starting circuit 100 can be connected to multiple power output terminals of the same, partially identical, or completely different connector types, and the multiple power output terminals can all be coupled to the charged device, so as to adapt to charged devices of different interface types and different brands, thereby providing a wider range of applications.

[0105] In the disclosed embodiment, the second end of the resistor R2 in the startup circuit is respectively connected to a part of the grounding components in the power output terminal of each connector type. In this way, no matter which connector type of the power output terminal is used to establish a physical connection with the charged device, the second end of the resistor R2 can be grounded, thereby providing a bias current for the gate of the MOS tube Q1, turning on the MOS tube Q1, and realizing a smooth startup of the mobile power supply.

[0106] For example, when a power output terminal of a type-C connector is used, the second end of the resistor R2 is connected to a portion of the ground line in the USB Type-C connector. When a power output terminal of a Micro USB connector is used, the second end of the resistor R2 is connected to the metal shell in the Micro USB connector. Similarly, when a power output terminal of a Lightning connector is used, the second end of the resistor R2 is connected to the metal shell in the Lightning connector or one of the ground lines.

[0107] The above technical solution can achieve compatibility with power output terminals of multiple connector types, provide a wider range of applications for the mobile power supply, and at the same time ensure stable startup and operation of the mobile power supply.

[0108] Optionally, when a type-C connector type power output terminal is used, the second end of the resistor R2 is connected to a portion of the ground pins 1012 in the type-C type power output terminal.

[0109] Optionally, the second end of the resistor R2 is connected to any of the ground pins 1012 in the type-c power output terminal.

[0110] See also Figure 3 As shown, the second end of the resistor R2 is connected to the A1 ground pin 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A12 ground pin 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the B1 ground pin 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the B12 ground pin 1012 in the type-c power output terminal. In this way, the second end of the resistor R2 is connected to any of the ground pins 1012 in the type-c power output terminal, which can not only trigger the MOS tube Q1 to turn on without induction, and the mobile power supply provides charging power to the charged device, but also ensure that the other ground terminals of the charged device can be grounded normally.

[0111] Optionally, the second end of the resistor R2 is connected to any two of the ground pins 1012 in the type-c power output terminal.

[0112] Continue to see Figure 3 As shown, the second end of the resistor R2 is connected to the A1 and A12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A1 and B1 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the B1 and B12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A12 and B12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A1 and B12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the B1 and A12 ground pins 1012 in the type-c power output terminal. In this way, the second end of the resistor R2 is connected to any two of the ground pins 1012 in the type-c power output end, which can not only trigger the MOS tube Q1 to turn on without induction, and the mobile power supply provides charging power to the charged device, but also ensure that the other grounding ends of the charged device can be grounded normally.

[0113] Optionally, the second end of the resistor R2 is connected to any three ground pins 1012 of the type-c power output terminal.

[0114] Continue to see Figure 3 As shown, the second end of the resistor R2 is connected to the A1, B1 and A12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A1, B12 and B1 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the B1, A12 and B12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A1, B1 and B12 ground pins 1012 in the type-c power output terminal, or the second end of the resistor R2 is connected to the A1, A12 and B12 ground pins 1012 in the type-c power output terminal. In this way, the second end of the resistor R2 is connected to any three of the ground pins 1012 in the type-c power output terminal, which can not only trigger the MOS tube Q1 to turn on without induction, and the mobile power supply provides charging power to the charged device, but also the remaining grounding end ensures that the other grounding ends of the charged device can be grounded normally.

[0115] Optionally, when a Lightning connector type power output terminal is used, the second end of the resistor R2 is connected to a metal housing in the Lightning type power output terminal.

[0116] In the above technical solution, the second end of the resistor R2 is connected to the metal shell in the Lightning type power output terminal, and the female socket of Lighting is used as the grounding terminal of the charged device according to the specification design. When the Lightning type power output terminal is physically connected to the Lightning type charging port of the charged device, the power output terminal connected to the second end of the resistor R2 in the power output terminal is connected to the ground wire in the charging port. In this way, the second end of the resistor R2 will be grounded, thereby providing a bias current to the gate of the MOS tube Q1, so that the MOS tube Q1 is turned on. Thereby, the battery of the mobile power supply is electrically connected to the main system, the battery provides working power to the main system, and the main system controls the mobile power supply to provide charging power to the charged device.

[0117] Optionally, when a Micro USB connector type power output terminal is used, the second end of the resistor R2 is connected to a metal housing in the Micro USB type power output terminal.

[0118] In the above technical solution, the second end of the resistor R2 is connected to the metal shell in the Micro USB type power output terminal, and the Micro USB female socket specified in the specification design is used as the grounding terminal of the charged device for grounding. When the Micro USB type power output terminal is physically connected to the Micro USB type charging port of the charged device, the power output terminal connected to the second end of the resistor R2 in the power output terminal is connected to the ground wire in the charging port. In this way, the second end of the resistor R2 will be grounded, thereby providing a bias current for the gate of the MOS tube Q1, so that the MOS tube Q1 is turned on. Thereby, the battery of the mobile power supply is electrically connected to the main system, the battery provides working power to the main system, and the main system controls the mobile power supply to provide charging power to the charged device.

[0119] The embodiment of the present disclosure further provides a functional module, including the startup circuit 100 according to any one of the aforementioned embodiments.

[0120] It can be explained that the functional module can be configured as a chip, a circuit board module, etc. that integrates the startup circuit 100.

[0121] The embodiment of the present disclosure further provides an electronic device, comprising the startup circuit 100 described in any one of the aforementioned embodiments, or the functional module described in the aforementioned embodiments.

[0122] It can be explained that the electronic device can be configured as a charger for, for example, a computer, a mobile phone, an electric vehicle, etc., or it can be a mobile power source.

[0123] The embodiment of the present disclosure further provides an accessory of an electronic device, comprising the starting circuit 100 described in any one of the aforementioned embodiments, or the functional module described in the aforementioned embodiments.

[0124] It can be explained that the accessories of the electronic device can be configured as, for example, an external power bank, a protective case with a charging function, or a keyboard protective case, etc.

[0125] The trigger end of the isolation module in the above-mentioned start-up circuit is connected to the trigger output end of the trigger module; the isolation module is in the power supply circuit in which the power supply provides working power to the power consumption system; the trigger input end of the trigger module is used to couple with the charged device; the isolation module is used to selectively turn on or off the power supply circuit based on the coupling condition between the trigger input end of the trigger module and the charged device, so that the isolation module turns on the power supply circuit to output the power provided by the power supply to the main system, thereby realizing the power-on of the main system and automatically starting to provide power to the charged device. The operation of providing power to the charged device without induction can be realized, which improves the convenience and safety of use, and there is no risk of false triggering, thereby avoiding unnecessary power loss. The isolation module turns on the power supply circuit to stop providing the power provided by the power supply to the main system, and the power provided by the power supply cannot be output to the main system, thereby realizing the power-off of the main system, entering the sleep mode, and automatically stopping the charging power to the charged device. The operation of providing charging power to the charged device without induction can be realized, and timely power off can also avoid additional unnecessary power loss.

[0126] Figure 4 is a block diagram of an electronic device 800 according to an exemplary embodiment. Figure 4 , the electronic device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output interface 812 , a sensor component 814 , and a communication component 816 .

[0127] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations with the display and data communication. The processing component 802 may include one or more processors 820 to execute instructions to provide charging power to the outside or accept charging power provided by an external storage cabinet or an external charging device. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0128] The memory 804 is configured to store various types of data to support operations on the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, and the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0129] The power supply component 806 provides power to the various components of the electronic device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 800.

[0130] The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and a user. In some embodiments, the screen may include a liquid crystal display (LCD).

[0131] The input / output interface 812 provides an interface between the processing component 802 and a peripheral interface module, and the peripheral interface module may be a power button, etc. These buttons may include, but are not limited to: physical buttons or touch buttons.

[0132] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the electronic device 800, the relative positioning of components, such as the display of the electronic device 800, and the sensor assembly 814 can also detect temperature changes of the electronic device 800 or a component of the electronic device 800. In some embodiments, the sensor assembly 814 can also include a pressure sensor or a temperature sensor.

[0133] The communication component 816 is configured to facilitate wired communication between the electronic device 800 and other devices, for example, to communicate with the charged device or an external electronic device in accordance with a charging protocol.

[0134] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to provide external charging power or receive charging power provided by an external storage cabinet or an external charging device.

[0135] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the above instructions can be executed by the processor 820 of the electronic device 800 to provide charging power to the outside or accept charging power provided by an external storage cabinet or an external charging device. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a tape, a floppy disk, an optical data storage device, etc.

[0136] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0137] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A startup circuit (100), characterized in that: include: An isolation module (101) and a trigger module (102); The trigger end of the isolation module (101) is connected to the trigger output end of the trigger module (102); The isolation module (101) is located in a power supply circuit in which a power source provides working power to a power consumption system; The trigger input terminal of the trigger module (102) is used to couple with a charged device; The isolation module (101) is used to selectively switch on or off the power supply circuit based on the coupling condition between the trigger input terminal of the trigger module (102) and the charged device.

2. The starting circuit (100) according to claim 1, characterized in that: The isolation module (101) comprises: an isolation subcircuit (1011); The first end of the isolation subcircuit (1011) is constructed as a voltage input end of the isolation module (101), and the voltage input end is used to couple with the positive pole of the power supply; The second end of the isolation subcircuit (1011) is configured as a trigger end of the isolation module (101); The third end of the isolation subcircuit (1011) is constructed as a voltage output end of the isolation module (101), and the voltage output end is used to couple with the power consumption system.

3. The starting circuit (100) according to claim 2, characterized in that: The isolation sub-circuit (1011) comprises: a MOS tube Q1; The source of the MOS transistor Q1 is configured as the first end of the isolation sub-circuit (1011), the gate of the MOS transistor Q1 is configured as the second end of the isolation sub-circuit (1011), and the drain of the MOS transistor Q1 is configured as the third end of the isolation sub-circuit (1011).

4. The starting circuit (100) according to claim 3, characterized in that: The trigger module (102) comprises: a voltage bias subcircuit (1021) and a current bias subcircuit (1022); The first end of the voltage bias subcircuit (1021) is constructed as a voltage input end of the trigger module (102), and the voltage input end of the trigger module (102) is connected to the positive electrode of the power supply; After the second end of the voltage bias subcircuit (1021) is connected to the first end of the current bias subcircuit (1022), it is constructed as the trigger output end of the trigger module (102); The second end of the current bias subcircuit (1022) is configured as the trigger input end of the trigger module (102).

5. The starting circuit (100) according to claim 4, characterized in that: The trigger module (102) comprises: a trigger subcircuit (1023); The signal input end of the trigger subcircuit (1023) is coupled to a power button, and the signal output end of the trigger subcircuit (1023) is connected to the second end of the current bias subcircuit (1022).

6. The starting circuit (100) according to claim 5, characterized in that: The trigger subcircuit (1023) comprises: a transistor Q2, a resistor R3 and a resistor R4; The collector of the transistor Q2 is constructed as the signal output end of the trigger subcircuit (1023), the base of the transistor Q2 is connected to the first end of the resistor R3 and the first end of the resistor R4, and the emitter of the transistor Q2 and the second end of the resistor R4 are both grounded; The second end of the resistor R3 is configured as a signal input end of the trigger sub-circuit (1023).

7. The starting circuit (100) according to claim 4, characterized in that: The voltage bias subcircuit (1021) comprises: a resistor R1; The first end of the resistor R1 is configured as the first end of the voltage bias subcircuit (1021), and the second end of the resistor R1 is configured as the second end of the voltage bias subcircuit (1021).

8. The starting circuit (100) according to claim 4, characterized in that: The current bias subcircuit (1022) comprises: a resistor R2; The first end of the resistor R2 is configured as the first end of the current bias subcircuit (1022), and the second end of the resistor R2 is configured as the second end of the current bias subcircuit (1022).

9. The starting circuit (100) according to any one of claims 1 to 8, characterized in that: The trigger input end of the trigger module (102) is used to couple with the charged device through a plurality of ports respectively.

10. A functional module, characterized in that: The invention comprises a starting circuit (100) according to any one of claims 1 to 9.

11. An electronic device, characterized in that: It comprises the starting circuit (100) according to any one of claims 1 to 9, or the functional module according to claim 10.

12. An accessory for an electronic device, characterized in that: It comprises the starting circuit (100) according to any one of claims 1 to 9, or the functional module according to claim 10.

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