CN116931967A

CN116931967A - Power supply device, burning connection device and burning system

Info

Publication number: CN116931967A
Application number: CN202210367793.5A
Authority: CN
Inventors: 雷云; 张智锋; 林建平; 张兵
Original assignee: Shenzhen Carku Technology Co Ltd
Current assignee: Shenzhen Carku Technology Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2023-10-24

Abstract

The application provides a power supply device, which comprises an interface circuit, a power supply device and a power supply device, wherein the interface circuit is used for externally connecting a burning system; the protection circuit is connected with the interface circuit; the main control circuit is connected with the energy storage component through the protection circuit; the protection circuit is used for controlling the energy storage component not to start to supply power to the main control circuit according to the first connection state of the interface circuit and the burning system. When the power supply equipment is used for burning, the shell is not required to be disassembled and reworked for burning, and the internal controller of the protection power supply equipment can be burnt under the condition that the internal controller of the protection power supply equipment is protected only by connecting the power supply equipment with the burning equipment through specific burning connecting equipment.

Description

Power supply device, burning connection device and burning system

Technical Field

The present application relates to the field of power technologies, and in particular, to a power device, a recording cable, and a recording system.

Background

On the finished product design of the existing emergency starting power supply or mobile power supply, a charging interface is generally reserved for charging the emergency starting power supply or mobile power supply, if the emergency starting power supply or mobile power supply is required to be updated, even if the emergency starting power supply is turned off, some singlechips in the emergency starting power supply are in a standby state rather than a power-off state, and if the singlechips are directly burnt out, the singlechips are easily burnt out, so that the singlechips cannot be directly burnt out through the interface on the emergency starting power supply or mobile power supply, the internal singlechips are required to be burnt and updated by shell disassembly and reworking, and the updating cost is high.

Disclosure of Invention

The application mainly aims to provide the power supply equipment, which can carry out burning update on a controller in the power supply equipment without disassembling the power supply equipment, and reduce the cost of burning update on the power supply equipment.

In a first aspect, the present application provides a power supply apparatus comprising:

the interface circuit is used for externally connecting a burning system;

the protection circuit is connected with the interface circuit;

the main control circuit is connected with the energy storage component through the protection circuit;

the protection circuit is used for controlling the energy storage component not to start to supply power to the main control circuit according to the first connection state of the interface circuit and the burning system.

In one embodiment, a first signal end of the interface circuit is connected with the protection circuit;

when the interface circuit is in a first connection state connected with the burning system, the first signal end outputs a first electric signal;

the protection circuit is used for controlling the energy storage component not to start power supply to the main control circuit when receiving the first electric signal output by the first signal end.

In an embodiment, when the interface circuit is in the first connection state, the first signal terminal is connected to a ground terminal of the recording system, so that the first signal terminal outputs a low level.

In an embodiment, the interface circuit can also be used to connect to a charging device;

the protection circuit is also used for controlling the energy storage component to start power supply to the main control circuit according to the second connection state of the interface circuit and the charging device.

In an embodiment, when the interface circuit is in a second connection state connected with the charging device, the first signal end of the interface circuit outputs a second electric signal or is suspended, wherein when the interface circuit is in the first connection state, the first signal end outputs a lower signal, and the level of the second electric signal is different from that of the first electric signal;

the protection circuit is used for controlling the energy storage component to start supplying power to the main control circuit when receiving the second electric signal output by the first signal end or when the first signal end is suspended.

In one embodiment, the protection circuit includes a switch control module and a switch module;

the switch control module is connected with the first signal end of the interface circuit and the switch module; the main control circuit is connected with the energy storage component through the switch module;

the switch control module is used for controlling the conduction condition of the switch module according to the electric signal output by the first signal end, so that the protection circuit controls the energy storage component to supply power to the main control circuit.

In an embodiment, the power supply device further comprises a charging circuit; the input end of the charging circuit is connected with the second signal end of the interface circuit; the output end of the charging circuit is connected with the protection circuit, and the control end of the charging circuit is connected with the main control circuit;

the charging circuit is used for adjusting the charging power provided by the charging device to the energy storage component according to the pulse modulation signal output by the main control circuit when the interface circuit and the charging device are in the second state.

In an embodiment, the power supply device comprises a portable chargeable and dischargeable power supply device.

In an embodiment, the master control circuit comprises a programmable device, and a programming port of the programmable device is connected with the interface circuit.

In a second aspect, the present application provides a burn-in connection apparatus, including a first interface, a second interface, a first path, and a second path; the first interface is used for connecting with power supply equipment, and the second interface is used for connecting with burning equipment;

the first path is connected with the first interface and the second interface, and is used for the burning device to burn data to the main control circuit of the power supply device;

the second path is connected with the first interface and is used for transmitting a first electric signal to the first interface.

In an embodiment, the second path is connected to a ground, and the first electrical signal is a low level signal.

In an embodiment, the recording connection device includes a ground terminal, and the second path is connected to the ground terminal; or (b)

The second path is connected with the grounding end of the burning device through the second interface.

In a third aspect, the present application provides a recording system, including a recording device and a recording connection device as described above, where the recording device is configured to connect to the power supply device as described above through the recording connection device, so as to record the power supply device.

The application provides a power supply device, which comprises an interface circuit, a power supply device and a power supply device, wherein the interface circuit is used for externally connecting a burning system; the protection circuit is connected with the interface circuit; the main control circuit is connected with the energy storage component through the protection circuit; the protection circuit is used for controlling the energy storage component not to start to supply power to the main control circuit according to the first connection state of the interface circuit and the burning system. When the power supply equipment is used for burning, the shell is not required to be disassembled and reworked for burning, and the special burning connection equipment is only required to be used for connecting the power supply equipment and the burning equipment, so that the internal singlechip/controller of the protection power supply equipment can be burned under the condition of protecting the internal singlechip/controller of the power supply equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic block diagram of a power supply device according to an embodiment of the present application;

FIG. 2 is a schematic block diagram of a power supply device according to an embodiment of the present application;

FIG. 3 is a schematic block diagram of a circuit structure provided by the embodiment of FIG. 2;

FIG. 4 is a schematic block diagram of a circuit configuration provided by the embodiment of FIG. 2;

FIG. 5 is a schematic circuit diagram of another embodiment provided by an example of the present application;

fig. 6 is a schematic diagram of a structure of a current detection circuit according to an embodiment of the application.

Reference numerals illustrate:

10. a main control circuit; 20. a protection circuit; 21. a switch control module; 22. a switch module;

30. an interface circuit; 40. an energy storage assembly; 50. a charging circuit; 60. a current detection circuit;

61. and the voltage dividing module.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1, fig. 1 is a schematic block diagram of a circuit device according to an embodiment of the present application.

As shown in fig. 1, the power supply device includes a main control circuit 10, a protection circuit 20, an interface circuit 30 and an energy storage component 40, wherein the interface circuit 30 is used for externally connecting a burning system; the protection circuit 20 is connected with the interface circuit 30, and the main control circuit 10 is connected with the energy storage component 40 through the protection circuit 20, so that the energy storage component 40 can supply power to the main control circuit 10.

Examples of power supply devices include a vehicle emergency start power supply, an outdoor energy storage power supply, an electric tool (e.g., an inflation pump, a vacuum cleaner, a car washer, an electric wrench, etc.), a heating device, a blower, or the like. The energy storage assembly 40 may include a super capacitor and/or a battery.

When the power supply device needs to be burned, the power supply device can be connected with the burning system through the interface circuit 30, and at this time, the protection circuit 20 controls the energy storage component 40 not to start supplying power to the main control circuit 10 according to the first connection state of the interface circuit 30 and the burning system, so that the power supply to the main control circuit 10 in the power supply device can be turned off, and therefore, when the burning system burns the controller of the main control circuit 10 in the power supply device, the controller is in a power-off state.

The controller may include a micro-control unit (Microcontroller Unit; MCU), or other programmable device that may implement control functions.

Taking the controller as an MCU for example, it will be appreciated that when the power supply device is not operating, the controller within the power supply device is in a standby state rather than a power-off state, and thus the protection circuit 20 defaults to allowing the energy storage component 40 to supply power to the main control circuit 10, including but not limited to the power supply device being in a standby state, a normal operating state, a charging state, etc. If the controller in the power supply device is in the non-power-off state, the controller is not allowed to burn, so that the controller needs to be powered off in order to meet the requirement that the controller can realize the on-line burning function.

Specifically, the energy storage component 40 supplies power to the main control circuit 10 through the protection circuit 20, and when the power supply device needs to perform burning, the protection circuit 20 can be disconnected according to the first connection state of the interface circuit 30 of the power supply device and the burning system, so as to realize that the energy storage component 40 cannot supply power to the main control circuit 10.

In some embodiments, the first signal terminal of the interface circuit 30 is connected to the protection circuit 20, and outputs a first electrical signal when the interface circuit 30 is connected to the recording system; the protection circuit 20 is configured to control the energy storage component 40 not to start supplying power to the main control circuit 10 when receiving the first electrical signal output by the first signal terminal.

The interface circuit 30 further includes a first signal terminal, wherein the first signal terminal is connected to the protection circuit 20, so that when the interface circuit 30 is in a first connection state connected to the recording system, a first electrical signal is output to the protection circuit 20 through the first signal terminal, and the protection circuit 20 is disconnected when receiving the first electrical signal, so as to control the energy storage component 40 not to start the power supply to the main control circuit 10.

In some embodiments, when the interface circuit 30 is in the first connection state, the first signal terminal is connected to the ground terminal of the recording system, so that the first signal terminal outputs a low level.

For example, if the interface circuit 30 is in the first connection state connected to the recording system, the first signal terminal may be considered to be connected to the ground terminal, specifically, may be connected to the ground terminal of the recording system, so as to output a low level at the first signal terminal. When the protection circuit 20 receives the low level output by the first signal terminal, the energy storage component 40 is controlled not to start power supply to the main control circuit 10.

Specifically, the protection circuit 20 is turned off when receiving the low level output by the first signal terminal, so that the energy storage component 40 cannot supply power to the main control circuit 10.

In some embodiments, the interface circuit 30 can also be used to interface with a charging device; the protection circuit 20 is further configured to control the energy storage component 40 to turn on the power supply to the main control circuit 10 according to the second connection state of the interface circuit 30 and the charging device.

It can be appreciated that when the power supply device needs to perform the recording, the interface circuit 30 of the power supply device can be used to externally connect the recording system; when the burning is completed or the burning is not needed, the interface circuit 30 of the power supply device can be used for externally connecting a charging device or a load, so that the power supply device is charged by electric energy provided by the charging device externally connected with the interface circuit 30 or the energy storage component 40 of the power supply device supplies power to the externally connected load through the interface circuit 30, and the charging or power supply of the power supply device is realized.

Illustratively, when the interface circuit 30 of the power supply apparatus is in the second connection state connected to the charging device, the protection circuit 20 controls the energy storage component 40 to start supplying power to the main control circuit 10, so that the main control circuit 10 controls the working state of the circuits in the power supply apparatus.

It will be appreciated that the protection circuit 20 will also control the energy storage assembly 40 to switch on the power supply to the main control circuit 10 when the interface circuit 30 of the power supply device is in the third connection state with the connection of the load.

In some embodiments, when the interface circuit 30 is in the second connection state connected to the charging device, the first signal end of the interface circuit 30 outputs the second electrical signal or is suspended, wherein when the interface circuit 30 is in the first connection state connected to the recording system, the first signal end outputs the first electrical signal, and the first electrical signal and the second electrical signal are different.

For example, when the interface circuit 30 is connected to the charging device, the first signal end may be a signal received by the charging device to output the second electrical signal, or may be suspended, and it may be understood that the protection circuit 20 controls the energy storage component 40 to start supplying power to the main control circuit 10 when the first signal end outputs the second electrical signal or the first signal end is suspended.

Illustratively, when the interface circuit 30 is externally empty, the first signal terminal is suspended, and the protection circuit 20 is configured to control the energy storage component 40 to start supplying power to the main control circuit 10 when the first signal terminal is suspended.

Specifically, the protection circuit 20 is turned on when the first signal end outputs the second electrical signal or the first signal end is suspended, so that the energy storage component 40 can supply power to the main control circuit 10 through the protection circuit 20.

Specifically, the level of the first electrical signal is smaller than that of the second electrical signal, so that the protection circuit 20 is disconnected when receiving the first electrical signal output by the first signal end, so as to control the energy storage component 40 not to start the power supply to the main control circuit 10; and is turned on when receiving the second electrical signal output by the first signal end, so as to control the energy storage component 40 to start supplying power to the main control circuit 10.

In some embodiments, as shown in fig. 2, the protection circuit 20 includes a switch control module 21 and a switch module 22; the switch control module 21 is connected with the first signal end and the switch module 22; the main control circuit 10 is connected with the energy storage component 40 through the switch module 22; the switch control module 21 is configured to control the on state of the switch module 22 according to the electrical signal output from the first signal terminal, so that the protection circuit 20 controls the energy storage component 40 to supply power to the main control circuit 10.

The switch control module 21 is for controlling the on state of the switch module 22 according to the electric signal output by the first signal terminal, so as to control the energy storage assembly 40 to supply power to the main control circuit 10.

Specifically, when the switch module 22 is turned on, the power provided by the energy storage component 40 can supply power to the main control circuit 10 through the switch module 22; while when the switch module 22 is turned off, the energy storage assembly 40 cannot provide the power to the main control circuit 10 through the switch module 22, and the main control circuit 10 is in the power-off state.

Illustratively, the switch control module 21 may be connected to a first end of the switch module 22, a second end of the switch module 22 is connected to the energy storage assembly 40, and a third end of the switch module 22 is connected to the master circuit 10, wherein the first end of the switch module 22 may be one of: the control end, the enabling end, the power supply end and the grounding end. So that the switch control module 21 can control the conduction condition of the switch module 22.

The switch control module 21 is for controlling the switch module 22 to be turned off according to a first electrical signal output by the first signal terminal. Specifically, when the interface circuit 30 is in the first connection state connected to the burning system, the first signal end outputs a first electrical signal, and the switch module 22 controls the switch module 22 to be turned off according to the first electrical signal, so that the energy storage component 40 cannot provide electric energy to the main control circuit 10 through the switch module 22; when the interface circuit 30 is in the second connection state with the charging device, the first signal end outputs a second electric signal, and the switch module 22 controls the switch module 22 to be turned on according to the second electric signal, so that the energy storage component 40 can supply power to the main control circuit 10 through the switch module 22, and when the power supply device is connected with the burning system for burning, the controller in the power supply device can be powered off for burning; and when the power supply device does not need to be burned, the energy storage component 40 of the power supply device can supply power to the main control circuit 10.

In some embodiments, as shown in fig. 3, fig. 3 is a partial schematic diagram of the switch module 22, where the switch module 22 includes a protection chip U1, a first current limiting resistor R1, and a first field effect transistor Q1; the first pin of the protection chip U1 is used as the first end of the switch module 22, the gate of the first field effect transistor Q1 is connected to the second pin of the protection chip U1 through the first current limiting resistor R1, the source of the first field effect transistor Q1 is connected to the energy storage component 40, and the drain of the first field effect transistor Q1 is connected to the main control circuit 10.

Illustratively, the switch control module 21 controls the second pin of the protection chip U1 to output the cut-off voltage when receiving the first electrical signal output by the first signal terminal; the first fet Q1 is turned off when the gate receives the off voltage, so that the energy storage component 40 cuts off the power supply to the main control circuit 10.

It can be understood that the switch control module 21 controls the second pin of the protection chip U1 to output the turn-on voltage when receiving the second electrical signal output by the first signal end or when the first signal end is suspended; the first fet Q1 is turned on when the gate receives the turn-on voltage, so that the energy storage device 40 turns on the power supply to the main control circuit 10.

In some embodiments, as shown in fig. 4, fig. 4 is a schematic circuit structure diagram provided by the embodiment of the present application, the switch control module 21 includes a triode Q2, a base electrode of the triode Q2 is connected to the first signal terminal, an emitter electrode of the triode Q2 is connected to the first pin of the protection chip U1, and a collector electrode of the triode Q2 is grounded. The energy storage component 40 is further configured to apply a first voltage to the emitter of the transistor Q2.

For example, when the first signal terminal outputs the first electrical signal, the transistor Q2 is turned off, the emitter of the transistor Q2 is set to a high level, which is equivalent to setting the first pin of the protection chip U1 to a high level; when the first pin is set to a high level, the protection chip U1 outputs a cut-off voltage at the second pin, so that the energy storage assembly 40 cuts off the power supply to the main control circuit 10.

When the first signal end outputs a second electric signal or the first signal end is suspended, the triode Q2 is conducted, the emitter of the triode Q2 is set to be at a low level, and meanwhile, the first pin of the protection chip U1 is also set to be at a low level; and when the first pin is set to be at a low level, the protection chip U1 outputs a turn-on voltage at the second pin, so that the energy storage component 40 starts to supply power to the main control circuit 10.

The triode Q2 in the switch control module 21, the protection chip U1 in the switch module 22 and the first field effect transistor Q1 enable the interface circuit 30 not to start the energy storage component 40 to supply power to the main control circuit 10 when the main control circuit 10 is connected with the burning system, so that the chip in the main control circuit 10 can be burned under the condition that the main control circuit 10 is powered off; and when the interface circuit 30 is externally connected with an empty or connected charging device or a connected load, the energy storage component 40 is started to supply power to the main control circuit 10.

In some embodiments, the power supply device further comprises a charging circuit 50, an input terminal of the charging circuit 50 being connected to the second signal terminal of the interface circuit 30; the output end of the charging circuit 50 is connected with the protection circuit 20, and the control end of the charging circuit 50 is connected with the main control circuit 10.

Illustratively, when the interface circuit 30 is in the second state of connection with the charging device, the energy storage assembly 40 is capable of providing electrical energy to the main control circuit 10, such that the main control circuit 10 outputs a pulse modulated signal to adjust the charging power provided by the charging device to the energy storage assembly 40.

The charging circuit 50 is connected to the energy storage assembly 40 through the protection circuit 20 to avoid overcharging the energy storage assembly 40 by the charging device. Specifically, the protection circuit 20 further includes a second field effect transistor Q3, and a third pin of the protection chip U1 is connected to a gate of the second field effect transistor Q3; the drain electrode of the second field effect tube Q3 is connected with the drain electrode of the first field effect tube Q1, and the source electrode of the second field effect tube Q3 is connected with the output end of the charging circuit 50; the output end of the charging circuit 50 is also connected with a fourth pin of the protection chip U1.

The protection chip U1 detects the electric energy output by the charging circuit 50 through the fourth pin, so that when the electric energy output by the charging circuit 50 is too large, the second fet Q3 can be controlled to be turned off through the third pin, so as to avoid damaging the energy storage component 40 by providing the excessive electric energy to the energy storage component 40.

For example, the charging circuit 50 may also transform the electrical energy provided by the charging device and output the transformed electrical energy to the energy storage assembly 40 to charge the energy storage assembly 40.

In some embodiments, the power supply apparatus further includes a voltage stabilizing circuit, through which the protection circuit 20 is connected to the main control circuit 10, and the voltage stabilizing circuit is configured to provide a constant voltage to the main control circuit 10 according to the electric energy provided by the energy storage component 40 through the protection circuit 20.

In some embodiments, as shown in fig. 5, the power supply apparatus further includes a current detection circuit 60, where the current detection circuit 60 is connected between the interface circuit 30 and the main control circuit 10, so that the main control circuit 10 can detect a charging current magnitude of the charging device to the power supply apparatus or a discharging current magnitude of the power supply apparatus to the load when the interface circuit 30 is connected to the charging device or the interface circuit 30 is connected to the load.

For example, if the main control circuit 10 detects that the charging current is excessive when the interface circuit 30 is connected to the charging device, the charging current may be adjusted by outputting a pulse modulation signal to the charging circuit 50 to control the charging power.

The current detection circuit 60 may include a detection resistor connected to the interface circuit 30 and an operational amplifier for measuring a voltage difference across the detection resistor, and thus obtaining an output current.

As shown in fig. 6, fig. 6 is a schematic circuit diagram of a current detection circuit 60, where the current detection circuit 60 includes a first resistor R2, a second resistor R3, a third resistor R4, a fourth resistor R5, a fifth resistor R6, an operational amplifier a, a voltage division module 61, and an operational amplifier B. The first resistor R2 is a detection resistor.

The first end of the first resistor R2 is connected with the interface circuit 30, and the first end of the first resistor R2 is also connected with the negative input end of the operational amplifier A through the second resistor R3; the second end of the first resistor R2 is connected with the positive input end of the operational amplifier A through a third resistor R4, and the second end of the first resistor R2 is also used for grounding; the negative input end of the operational amplifier a is further connected to the output end of the operational amplifier a through a fourth resistor R5, and the output end of the operational amplifier a is further connected to the master control circuit 10, so that the master control circuit 10 can adjust the duty ratio of the pwm signal according to the magnitude of the output detected by the current detection circuit 60.

The positive input end of the operational amplifier A is also connected with the output end of the operational amplifier B through a fifth resistor R6, the negative input end of the operational amplifier B is connected with the output end of the operational amplifier B, and the positive input end of the operational amplifier B is connected with the voltage division end of the voltage division module 61; the first end of the voltage dividing module 61 is connected to the energy storage component 40, so that the energy storage component 40 applies the second voltage to the first end of the voltage dividing module 61, and the second end of the voltage dividing module 61 is grounded.

By way of example, the voltage dividing module 61 and the operational amplifier B provide the third voltage to the fifth resistor R6 to compare the voltages at the other ends of the fourth resistor R5 of the fifth resistor R6, and the comparison result can reflect whether the magnitude of the current flowing through the detecting resistor meets the condition, so as to determine whether the charging current of the interface circuit 30 meets the condition, thereby achieving the purpose of detecting the charging current.

In some embodiments, the master circuit 10 includes a programmable device, and a programming port of the programmable device is connected to the interface circuit 30, so that when the interface circuit 30 is connected to the programming system, the programmable device can be programmed through the programming port.

The on state of the protection circuit 20 is controlled by the electric signal output by the first signal end of the interface circuit 30, so that when the interface circuit 30 is in the first connection state of the connection burning system, the energy storage component 40 in the power supply equipment does not start to supply power to the main control circuit 10, and the programmable device in the main control circuit 10 is in the power-off state, so that the programmable device can be burned through the burning system, the programmable device in the power supply equipment can be burned without the need of disassembling the shell of the power supply equipment, and the burning cost is reduced.

In some embodiments, the power supply device comprises a portable chargeable and dischargeable power supply device. It will be appreciated that the interface circuit 30 of the chargeable and dischargeable power supply device may be connected to a burning system, a charging device or a load, which is not limited herein.

The application also provides a burning connection device, wherein the burning connection device comprises a first interface, a second interface, a first path and a second path.

The first interface is used for connecting with the power supply device, the second interface is used for connecting with the recording device, and the first interface and the second interface are connected through a first path, so that the recording device can record data through the first path to the main control circuit 10 of the power supply device. The second path is connected with the first interface and is used for transmitting the first electric signal to the first interface.

It will be appreciated that after the burn-in connection device is connected to the interface circuit 30 of the power supply device, the first signal terminal in the interface circuit 30 is connected to the second path to receive the first electrical signal transmitted from the second path and transmit the first electrical signal to the protection circuit 20 of the power supply device.

In some embodiments, one end of the second path is connected to the first interface, the other end is connected to the ground, and the first electrical signal is a low level signal.

It will be appreciated that when the recording connection device is connected to the power supply device, the first signal terminal of the interface circuit 30 is connected to the second path through the first interface, and at this time, the first signal terminal may be considered to be connected to the ground terminal, so that the low level signal can be output at the first signal terminal to control the protection circuit 20.

In some embodiments, the burn-in connection apparatus includes a ground terminal to which the second path is connected; or the second path is connected to the ground terminal of the burning device through the second interface.

It can be appreciated that the recording connection device may include a ground terminal, and the second path is directly connected to the ground terminal of the recording connection device; one end of the second path is connected to the first interface, and the other end of the second path is connected to the second interface, but when the second path is connected to the recording device, the second path is connected to the ground terminal of the recording device through the second interface, so that the second path can be regarded as the ground when the second path is connected to the power supply device through the first interface.

The application also provides a burning system, which comprises burning equipment and burning connection equipment; the specific setting manner of the burning connection device may refer to the corresponding embodiments described in the specification of the present application, and will not be described herein. The programming equipment is connected with the power supply equipment through the programming connection equipment, so that the programmable device in the power supply equipment can be programmed under the condition that the power supply equipment does not need to be disassembled, and the cost of data programming is reduced. It will be appreciated that the programmable device may be, for example, a single chip microcomputer.

In the description of the present application, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different structures of the application. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only preferred embodiments of the present application, and the scope of the present application is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present application are intended to be within the scope of the present application as claimed.

Claims

1. A power supply apparatus, characterized by comprising:

the interface circuit is used for externally connecting a burning system;

the protection circuit is connected with the interface circuit;

2. The power supply apparatus of claim 1, wherein a first signal terminal of the interface circuit is connected to the protection circuit;

3. The power supply apparatus of claim 2, wherein the first signal terminal is connected to a ground terminal of the burning system when the interface circuit is in the first connection state, so that the first signal terminal outputs a low level.

4. The power supply apparatus of claim 1, wherein the interface circuit is further operable to externally connect a charging device;

5. The power supply apparatus according to claim 4, wherein a first signal terminal of the interface circuit outputs a second electric signal or is suspended when the interface circuit is in a second connection state with the charging device, wherein the first signal terminal outputs a first electric signal when the interface circuit is in the first connection state, and a level of the second electric signal is different from the first electric signal;

6. The power supply apparatus according to claim 2 or 4, wherein the protection circuit includes a switch control module and a switch module;

7. The power supply apparatus according to any one of claims 1 to 5, further comprising a charging circuit; the input end of the charging circuit is connected with the second signal end of the interface circuit; the output end of the charging circuit is connected with the protection circuit, and the control end of the charging circuit is connected with the main control circuit;

the charging circuit is used for adjusting the charging power provided by the charging device to the energy storage component according to the pulse modulation signal output by the main control circuit when the interface circuit is in a second state connected with the charging device.

8. The power supply device according to any one of claims 1-5, wherein the power supply device comprises a portable chargeable and dischargeable power supply device.

9. The power supply apparatus of any one of claims 1-5, wherein the master circuit comprises a programmable device, a burn port of the programmable device being connected to the interface circuit.

10. The burning connection device is characterized by comprising a first interface, a second interface, a first path and a second path; the first interface is used for connecting with power supply equipment, and the second interface is used for connecting with burning equipment;

11. The burn period connection apparatus of claim 10, wherein the second path is connected to ground and the first electrical signal is a low level signal.

12. The burn-in connection apparatus of claim 10, wherein the burn-in connection apparatus comprises a ground terminal to which the second path is connected; or (b)

13. A burning system comprising a burning device and a burning connection device according to claim 10, the burning device being configured to connect the power supply device according to any one of claims 1-9 via the burning connection device to burn the power supply device.