Power connection control circuit and device and vehicle

Abstract

The invention relates to a power connection control circuit and device and a vehicle. The power connection control circuit comprises a voltage transformation module, a first switch module and a second switch module. The first switch module is respectively connected with the power supply and the internal power supply; the first switch module is used for conducting under the condition that the power supply voltage of the power supply meets a first voltage range; the second switch module is connected with the power supply and is connected with the internal power supply through the voltage transformation module; and the second switch module is used for conducting under the condition that the power supply voltage of the power supply meets a second voltage range. The power supply voltage of the power supply is detected through the first switch module and the second switch module, the first switch module is switched on when the voltage levels of the power supply and the internal power supply are the same, and the second switch module is switched on when the voltage levels of the power supply and the internal power supply are different, so that the voltage levels of different power supplies can be detected. And different charging loops are adopted to charge the internal power supply, so that the power-on safety of the internal power supply is ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of charging devices, and more particularly to a charging control circuit, a device and a vehicle. Background Art

[0002] With the rapid development of automobile technology, more and more vehicles are beginning to use 48V electrical systems for power supply, which has led to the coexistence of a large number of vehicles with 48V electrical systems and 12V electrical systems. When the voltage level of the electrical system of the pick-up vehicle is not clear, the pick-up vehicle is connected to the vehicle being picked up for charging. If the voltage levels of the electrical systems of the two do not match, the battery of the picked-up vehicle cannot be charged normally, and even causes the battery to explode, resulting in serious safety accidents. Therefore, how to solve the battery charging difficulties and safety issues when using vehicles with different voltage levels for pick-up has become a technical problem that technicians in this field need to solve urgently. Summary of the invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a jump start control circuit, a device and a vehicle.

[0004] The present disclosure provides a jumper control circuit, including: a transformer module, a first switch module, and a second switch module. The first end of the first switch module is connected to a jumper power supply, and the second end of the first switch module is connected to an internal power supply; the first switch module is used to conduct when the supply voltage of the jumper power supply meets a first voltage range; the first end of the second switch module is connected to the jumper power supply, and the second end of the second switch module is connected to the internal power supply through the transformer module; the second switch module is used to conduct when the supply voltage of the jumper power supply meets a second voltage range; wherein the transformer module is used to convert the supply voltage of the jumper power supply into a charging voltage of the internal power supply.

[0005] Optionally, the first switch module includes a first control unit and a first switch unit; the first detection end of the first control unit is electrically connected to the internal power supply, the second detection end of the first control unit is electrically connected to the jumper power supply, the output end of the first control unit is electrically connected to the control end of the first switch unit, the first end of the first switch unit is electrically connected to the jumper power supply, and the second end of the first switch unit is electrically connected to the internal power supply; the first control unit is used to send a conduction signal to the first switch unit when the voltage of the internal power supply is less than the voltage threshold and the supply voltage of the jumper power supply meets the first voltage range.

[0006] Optionally, the first control unit includes: a first Zener diode, a second Zener diode, a third Zener diode, a first N-type transistor, a second N-type transistor, a third N-type transistor, a fourth N-type transistor and a first P-type transistor; the negative terminal of the first Zener diode is electrically connected to the internal power supply, the positive terminal of the first Zener diode is electrically connected to the control terminal of the first N-type transistor, the first terminal of the first N-type transistor is grounded, and the second terminal of the first N-type transistor is electrically connected to the control terminal of the fourth N-type transistor; wherein the reverse breakdown voltage of the first Zener diode is the first voltage; the first voltage is the undervoltage voltage of the internal power supply; the control terminal of the second N-type transistor is electrically connected to the positive terminal of the second Zener diode, the negative terminal of the second Zener diode is electrically connected to the jumper power supply, the first terminal of the second N-type transistor is grounded, and the second terminal of the second N-type transistor is electrically connected to the control terminal of the fourth N-type transistor The two ends are electrically connected to the control end of the first P-type transistor, the first end of the first P-type transistor is electrically connected to the jumper power supply, and the second end of the first P-type transistor is electrically connected to the control end of the fourth N-type transistor; the control end of the third N-type transistor is electrically connected to the positive end of the third zener diode, the negative end of the third zener diode is electrically connected to the second end of the first P-type transistor, the first end of the third N-type transistor is grounded, and the second end of the third N-type transistor is electrically connected to the control end of the fourth N-type transistor; the first end of the fourth N-type transistor is grounded, and the second end of the fourth N-type transistor is electrically connected to the control end of the first switch unit; wherein, the reverse breakdown voltage of the second zener diode is the second voltage, and the reverse breakdown voltage of the third zener diode is the third voltage; the second voltage is the minimum value of the first voltage range, and the third voltage is the maximum value of the first voltage range.

[0007] Optionally, the first switch unit includes a first PMOS tube; the first pole of the first PMOS tube is electrically connected to the jumper power supply, the second pole of the first PMOS tube is electrically connected to the internal power supply, and the gate of the first PMOS tube is connected to the second end of the fourth N-type transistor.

[0008] Optionally, the second switch module includes a second control unit and a second switch unit; the first detection end of the second control unit is electrically connected to the internal power supply, the second detection end of the second control unit is electrically connected to the jumper power supply, the output end of the second control unit is electrically connected to the control end of the second switch unit, the first end of the second switch unit is electrically connected to the jumper power supply, and the second end of the second switch unit is electrically connected to the internal power supply through the transformer module; the second control unit is used to send a conduction signal to the second switch unit when the voltage of the internal power supply is less than the voltage threshold and the supply voltage of the jumper power supply meets the second voltage range.

[0009] Optionally, the second control unit includes: a fourth Zener diode, a fifth Zener diode, a sixth Zener diode, a fifth N-type transistor, a sixth N-type transistor, a seventh N-type transistor, an eighth N-type transistor and a second P-type transistor; the negative terminal of the fourth Zener diode is electrically connected to the internal power supply, the positive terminal of the fourth Zener diode is electrically connected to the control terminal of the fifth N-type transistor, the first terminal of the fifth N-type transistor is grounded, and the second terminal of the fifth N-type transistor is electrically connected to the control terminal of the eighth N-type transistor; wherein the reverse breakdown voltage of the fourth Zener diode is the first voltage; the first voltage is the undervoltage voltage of the internal power supply; the control terminal of the sixth N-type transistor is electrically connected to the positive terminal of the fifth Zener diode, the negative terminal of the fifth Zener diode is electrically connected to the jumper power supply, the first terminal of the sixth N-type transistor is grounded, and the second terminal of the sixth N-type transistor is electrically connected to the jumper power supply. The two ends are electrically connected to the control end of the second P-type transistor, the first end of the second P-type transistor is electrically connected to the jumper power supply, and the second end of the second P-type transistor is electrically connected to the control end of the eighth N-type transistor; the control end of the seventh N-type transistor is electrically connected to the positive end of the sixth voltage-regulating diode, the negative end of the sixth voltage-regulating diode is electrically connected to the second end of the second P-type transistor, the first end of the seventh N-type transistor is grounded, and the second end of the seventh N-type transistor is electrically connected to the control end of the eighth N-type transistor; the first end of the eighth N-type transistor is grounded, and the second end of the eighth N-type transistor is electrically connected to the control end of the second switch unit; wherein, the reverse breakdown voltage of the fifth voltage-regulating diode is the fourth voltage, and the reverse breakdown voltage of the sixth voltage-regulating diode is the fifth voltage; the fourth voltage is the minimum value of the second voltage range, and the fifth voltage is the maximum value of the second voltage range.

[0010] Optionally, the second switch unit includes a second PMOS tube; the first pole of the second PMOS tube is electrically connected to the jumper power supply, the second pole of the second PMOS tube is electrically connected to the internal power supply through the transformer module, and the gate of the second PMOS tube is connected to the second end of the eighth N-type transistor.

[0011] Optionally, the jump-start control circuit also includes a voltage acquisition module; the transformer module includes a first transformer unit, a third control unit and a second transformer unit; the first end of the first transformer unit is electrically connected to the internal power supply, the second end of the first transformer unit is electrically connected to the power load and the third control unit, the first end of the first transformer unit is also electrically connected to the first switch module, and the second end of the first transformer unit is also electrically connected to the second switch module; the internal power supply is electrically connected to the third control unit through the second transformer unit, and the third control unit is electrically connected to the voltage acquisition module. When the second switch module is turned on, the third control unit is used to receive the supply voltage of the jump-start power supply and send a boost control instruction to the first transformer unit; the first transformer unit is used to convert the supply voltage of the jump-start power supply into a charging voltage of the internal power supply based on the boost control instruction; when the first switch module is turned on, the third control unit is used to receive the supply voltage provided by the internal power supply through the second transformer unit, and send a step-down control instruction to the first transformer unit; the first transformer unit is used to convert the power supply voltage of the internal power supply into a load voltage of the power load based on the step-down control instruction.

[0012] The present disclosure also provides a jumper control device, comprising any jumper control circuit as described above.

[0013] The present disclosure also provides a vehicle, comprising the jump-start control device as described above.

[0014] The present disclosure provides a jump-start control circuit, device and vehicle, wherein the jump-start control circuit includes a transformer module, a first switch module and a second switch module. After the jump-start power supply is connected, the first switch module and the second switch module detect the supply voltage of the jump-start power supply. When it is detected that the supply voltage of the jump-start power supply meets the first voltage range, it is determined that the supply voltage of the jump-start power supply is the same as the voltage level of the charging voltage of the internal power supply, so the first switch module is turned on, so that the jump-start power supply is connected to the internal power supply, and the charging of the internal power supply by the jump-start power supply is realized. When it is detected that the supply voltage of the jump-start power supply meets the second voltage range, it is determined that the supply voltage of the jump-start power supply is different from the voltage level of the charging voltage of the internal power supply, so the second switch module is turned on, and the jump-start power supply is connected to the transformer module, so that the supply voltage of the jump-start power supply is converted by the transformer module and then output to the internal power supply, thereby realizing the charging of the internal power supply. In the present disclosure, when the supply voltage of the external jump-start power supply is the same as the voltage level of the charging voltage of the internal power supply, the internal power supply can be directly charged by the first switch module that is turned on, and when the supply voltage of the jump-start power supply is different from the voltage level of the charging voltage of the internal power supply, the supply voltage provided by the jump-start power supply can be output to the transformer module through the second switch module that is turned on, and then the transformer module converts the supply voltage of the jump-start power supply into a voltage with the same voltage level as the charging voltage of the internal power supply, and outputs it to the internal power supply to charge the internal power supply. Thus, the present disclosure realizes that when the voltage level of the jump-start power supply is unclear, the supply voltage of the jump-start power supply is detected and turned on respectively by the first switch module and the second switch module, thereby realizing that different charging circuits are used to charge the internal power supply for different voltage levels of the jump-start power supply, thereby ensuring the jump-start safety of the internal power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the structure of a jumper control circuit provided in an embodiment of the present disclosure.

[0017] Figure 2 A schematic diagram of the structure of another jumper control circuit provided in an embodiment of the present disclosure.

[0018] Figure 3 A schematic diagram of the structure of another jumper control circuit provided in an embodiment of the present disclosure.

[0019] Figure 4A schematic diagram of the structure of another jumper control circuit provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of various aspects of the application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented when some details in these specific details are not needed. The following description of the embodiments is only to provide a better understanding of the application by illustrating the example of the application.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0022] Figure 1 A schematic diagram of a jumper control circuit provided in an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the jumper control circuit includes: a transformer module 100, a first switch module 200 and a second switch module 300. The first end 201 of the first switch module 200 is connected to the jumper power supply 410, and the second end 202 of the first switch module 200 is connected to the internal power supply 420; the first switch module 200 is used to conduct when the supply voltage of the jumper power supply 410 meets the first voltage range. The first end 301 of the second switch module 300 is connected to the jumper power supply 410, and the second end 302 of the second switch module 300 is connected to the internal power supply 420 through the transformer module 100; the second switch module 300 is used to conduct when the supply voltage of the jumper power supply 410 meets the second voltage range. Among them, the transformer module 100 is used to convert the supply voltage of the jumper power supply 410 into the charging voltage of the internal power supply 420.

[0023] Specifically, after the jump power supply 410 is connected, the first switch module 200 and the second switch module 300 simultaneously detect the supply voltage of the jump power supply 410. When it is detected that the supply voltage of the jump power supply 410 meets the first voltage range, it is determined that the supply voltage of the jump power supply 410 is the same as the voltage level of the charging voltage of the internal power supply 420. At this time, the second switch module 300 remains turned off, and the first switch module 200 is turned on, so that the jump power supply 410 is connected to the internal power supply 420, so that the jump power supply 410 charges the internal power supply 420. The first switch module 200 also detects the internal voltage of the internal power supply 420. When the internal voltage of the internal power supply 420 is greater than the power-deficient voltage, it is determined that the internal power supply 420 has completed charging, and the first switch module 200 is turned off to stop the jump power supply 410 from charging the internal power supply 420.

[0024] When the first switch module 200 and the second switch module 300 detect that the supply voltage of the jump power supply 410 meets the second voltage range, it is determined that the supply voltage of the jump power supply 410 is different from the voltage level of the charging voltage of the internal power supply 420. At this time, the first switch module 200 remains in the off state, and the second switch module 300 is turned on to connect the jump power supply 410 with the transformer module 100, so that the supply voltage of the jump power supply 410 is converted by the transformer module 100 into a voltage with the same voltage level as the charging voltage of the internal power supply 420, and then output to the internal power supply 420, thereby realizing that the jump power supply 410 charges the internal power supply 420 through the transformer module 100. The second switch module 300 also detects the internal voltage of the internal power supply 420. When the internal voltage of the internal power supply 420 is greater than the power-deficient voltage, it is determined that the internal power supply 420 has completed charging, and the second switch module 300 is turned off to stop charging the internal power supply 420. When the supply voltage of the jump power source 410 does not meet the first voltage range or the second voltage range, it is determined that the supply voltage of the jump power source 410 cannot charge the internal power source 420, and the first switch module 200 and the second switch module 300 both remain in the disconnected state.

[0025] The present disclosure detects the supply voltage of the jump-start power supply 410 through the first switch module 200 and the second switch module 300. When the supply voltage of the external jump-start power supply 410 is the same as the voltage level of the charging voltage of the internal power supply 420, the internal power supply 420 can be directly charged through the turned-on first switch module 200. When the supply voltage of the jump-start power supply 410 is different from the voltage level of the charging voltage of the internal power supply 420, the supply voltage provided by the jump-start power supply 410 can be output to the transformer module 100 through the turned-on second switch module 300, and then the transformer module 100 converts the supply voltage of the jump-start power supply 410 into a voltage with the same voltage level as the charging voltage of the internal power supply 420, and outputs it to the internal power supply 420 to charge the internal power supply 420. Therefore, the present disclosure realizes that when the voltage level of the jump-start power supply 410 is unclear, the supply voltage of the jump-start power supply 410 is detected and turned on respectively by the first switch module 200 and the second switch module 300, thereby realizing that different charging circuits are used to charge the internal power supply 420 for different voltage levels of the jump-start power supply 410, thereby ensuring the jump-starting safety of the internal power supply 420.

[0026] In some embodiments, the first switch module includes a first control unit and a first switch unit; the first detection end of the first control unit is electrically connected to the internal power supply, the second detection end of the first control unit is electrically connected to the jumper power supply, the output end of the first control unit is electrically connected to the control end of the first switch unit, the first end of the first switch unit is electrically connected to the jumper power supply, and the second end of the first switch unit is electrically connected to the internal power supply; the first control unit is used to send a conduction signal to the first switch unit when the voltage of the internal power supply is less than the voltage threshold and the supply voltage of the jumper power supply meets the first voltage range.

[0027] Specifically, the first control unit detects the internal voltage of the internal power supply through the first detection end. When the internal voltage is greater than the voltage threshold, it is determined that the internal power supply is not low-power, so there is no need for the jumper power supply to charge it. Even if the power supply voltage of the jumper power supply meets the first voltage range, the first control unit will not send a conduction signal to the first switch unit. When the internal voltage of the internal power supply is less than the voltage threshold, it is determined that the internal power supply has a low-power problem. The first control unit continues to detect the power supply voltage of the jumper power supply. When the power supply voltage of the jumper power supply meets the first voltage range, it is determined that the power supply voltage of the jumper power supply is the same voltage level as the charging voltage of the internal power supply. The first control unit sends a conduction signal to the first switch unit to connect the jumper power supply to the internal power supply. As a result, the present disclosure realizes that when the voltage level of the jumper power supply is the same as that of the internal power supply, the first control unit directly turns on the first switch unit, so that the jumper power supply directly charges the internal power supply.

[0028] In some embodiments, Figure 2 A schematic diagram of a structure of another jumper control circuit provided in an embodiment of the present disclosure is shown in FIG. Figure 2 As shown, the first control unit includes: a first Zener diode D1, a second Zener diode D2, a third Zener diode D3, a first N-type transistor Q1, a second N-type transistor Q2, a third N-type transistor Q3, a fourth N-type transistor Q4 and a first P-type transistor Q5.

[0029] Exemplarily, the first N-type transistor Q1 , the second N-type transistor Q2 , the third N-type transistor Q3 , and the fourth N-type transistor Q4 may be NPN-type transistors, and the first P-type transistor Q5 may be a PNP-type transistor.

[0030] It should be noted that the first N-type transistor Q1, the second N-type transistor Q2, the third N-type transistor Q3, the fourth N-type transistor Q4 and the first P-type transistor Q5 may also be other devices that can realize switching functions, such as MOS transistors, and are not specifically limited here.

[0031] The negative terminal of the first voltage zener diode D1 is electrically connected to the internal power supply 420, the positive terminal of the first voltage zener diode D1 is electrically connected to the control terminal of the first N-type transistor Q1, the first terminal of the first N-type transistor Q1 is grounded, and the second terminal of the first N-type transistor Q1 is electrically connected to the control terminal of the fourth N-type transistor Q4; wherein, the reverse breakdown voltage of the first voltage zener diode D1 is the first voltage; the first voltage is the undervoltage voltage of the internal power supply 420.

[0032] The control end of the second N-type transistor Q2 is electrically connected to the positive end of the second zener diode D2, the negative end of the second zener diode D2 is electrically connected to the jumper power supply 410, the first end of the second N-type transistor Q2 is grounded, the second end of the second N-type transistor Q2 is electrically connected to the control end of the first P-type transistor Q5, the first end of the first P-type transistor Q5 is electrically connected to the jumper power supply 410, and the second end of the first P-type transistor Q5 is electrically connected to the control end of the fourth N-type transistor Q4; the control end of the third N-type transistor Q3 is electrically connected to the positive end of the third zener diode D3, the negative end of the third zener diode D3 is electrically connected to the second end of the first P-type transistor Q5, the first end of the third N-type transistor Q3 is grounded, and the second end of the third N-type transistor Q3 is electrically connected to the control end of the fourth N-type transistor Q4; the first end of the fourth N-type transistor Q4 is grounded, and the second end of the fourth N-type transistor Q4 is electrically connected to the control end of the first switch unit 210.

[0033] The reverse breakdown voltage of the second zener diode D2 is the second voltage, and the reverse breakdown voltage of the third zener diode D3 is the third voltage; the second voltage is the minimum value of the first voltage range, and the third voltage is the maximum value of the first voltage range.

[0034] Specifically, the control end of the first N-type transistor Q1 is also grounded through the first pull-down resistor R1, the control end of the second N-type transistor Q2 is also grounded through the second pull-down resistor R2, the control end of the third N-type transistor Q3 is also grounded through the third pull-down resistor R3, and the control end of the fourth N-type transistor Q4 is also electrically connected to the second end of the first P-type transistor Q5 through the first current limiting resistor R4.

[0035] When the internal voltage of the internal power supply 420 is greater than or equal to the first voltage, the voltage across the first voltage zener diode D1 reaches the reverse breakdown voltage of the first voltage zener diode D1, and the first voltage zener diode D1 is turned on. At this time, the control end of the first N-type transistor Q1 receives a high-level signal and is turned on. The control end of the fourth N-type transistor Q4 is grounded through the turned-on first N-type transistor Q1. Therefore, no matter how other transistors are turned on or off, the fourth N-type transistor Q4 remains in the off state, and the first switch unit 210 does not receive a turn-on signal. This achieves that when the internal voltage of the internal power supply 420 is greater than or equal to the first voltage, that is, when the internal power supply 420 is not depleted, the first switch unit 210 will not be turned on. As a result, when the internal power supply 420 is not depleted, the jumper power supply 410 will not turn on the first switch unit 210 to supply power to the internal power supply 420, or after the jumper power supply 410 completes charging for the internal power supply 420, the first switch unit 210 is turned off and stops charging the internal power supply 420.

[0036] When the supply voltage of the jump power supply 410 is less than the second voltage or greater than the third voltage, that is, the supply voltage of the jump power supply 410 does not meet the first voltage range. When the internal voltage of the internal power supply 420 is less than the first voltage, the first voltage zener diode D1 is not turned on, the control end of the first N-type transistor Q1 is grounded through the first pull-down resistor R1, and the first N-type transistor Q1 remains in the off state. When the supply voltage of the jump power supply 410 is less than the second voltage, the voltage across the second voltage zener diode D2 does not reach the reverse breakdown voltage, the second voltage zener diode D2 is not turned on, the control end of the second N-type transistor Q2 is grounded through the second pull-down resistor R2, the second N-type transistor Q2 remains in the off state, and the first P-type transistor Q5 also remains in the off state, the branch where the third voltage zener diode D3 is located is not turned on, and the third N-type transistor Q3 remains in the off state. At this time, there is no signal access to the control end of the fourth N-type transistor Q4, the fourth N-type transistor Q4 remains in the off state, and the first switch unit 210 does not receive the turn-on signal.

[0037] When the supply voltage of the jumper power supply 410 is greater than the third voltage, the voltage across the second Zener diode D2 reaches the reverse breakdown voltage, the second Zener diode D2 is turned on, the control end of the second N-type transistor Q2 is connected to the jumper power supply 410 to receive a high-level signal, the second N-type transistor Q2 is turned on, the control end of the first P-type transistor Q5 is grounded through the turned-on second N-type transistor Q2, the first P-type transistor Q5 is turned on, the third Zener diode D3 is connected to the jumper power supply 410, the voltage across the third Zener diode D3 reaches the reverse breakdown voltage, and the third Zener diode D 3 is turned on, the control end of the third N-type transistor Q3 is connected to the jump power supply 410, and the third N-type transistor Q3 is turned on. At this time, the control end of the fourth N-type transistor Q4 is directly grounded through the turned-on third N-type transistor Q3, so that the control end of the fourth N-type transistor Q4 receives a low-level signal through the turned-on third N-type transistor Q3, instead of receiving a high-level signal provided by the jump power supply 410 through the first current limiting resistor R4. The control end of the fourth N-type transistor Q4 remains in a disconnected state according to the received low-level signal, and the first switch unit 210 will not receive a turn-on signal. Therefore, when the supply voltage of the jump power supply 410 does not meet the first voltage range, it is determined that the supply voltage of the jump power supply 410 cannot charge the internal power supply 420, and the first switch module 200 remains in a disconnected state.

[0038] When the supply voltage of the jump power source 410 is greater than the second voltage and less than the third voltage, that is, the supply voltage of the jump power source 410 satisfies the first voltage range, when the internal voltage of the internal power source 420 is less than the first voltage, the first voltage zener diode D1 is not turned on, the control terminal of the first N-type transistor Q1 is grounded through the first pull-down resistor R1, and the first N-type transistor Q1 remains in the off state. When the supply voltage of the jump power supply 410 is greater than the second voltage and less than the third voltage, the voltage across the second voltage zener diode D2 reaches the reverse breakdown voltage, the second voltage zener diode D2 is turned on, the control end of the second N-type transistor Q2 is connected to the jump power supply 410, the control end of the second N-type transistor Q2 receives a high level and is turned on, the control end of the first P-type transistor Q5 is grounded through the turned-on second N-type transistor Q2, the first P-type transistor Q5 is turned on, the third voltage zener diode D3 is connected to the jump power supply 410, the voltage across the third voltage zener diode D3 does not reach the reverse breakdown voltage, the third voltage zener diode D3 is not turned on, then the control end of the third N-type transistor Q3 is grounded through the third pull-down resistor R3, and the third N-type transistor Q3 remains in the off state according to the received low level signal. At this time, the control end of the fourth N-type transistor Q4 is connected to the jump power supply 410 through the first current limiting resistor R4, and the fourth N-type transistor Q4 is turned on according to the received high level, so that the first switch unit 210 receives the turn-on signal and is turned on. Therefore, the present disclosure realizes that when the voltage level of the jumper power source 410 and the internal power source 420 is the same, the on-off control of the first switch unit is realized through the hardware circuit, so that the rapid control of the charging and disconnection process of the internal power source 420 can be realized. When the internal power source 420 is fully charged, or the supply voltage of the jumper power source 410 is abnormal, the charging of the internal power source 420 can be quickly cut off by utilizing the properties of the hardware circuit, thereby maintaining the charging safety of the internal power source 420.

[0039] In some embodiments, see Figure 2 The first switch unit 210 includes a first PMOS transistor Q6. A first electrode of the first PMOS transistor Q6 is electrically connected to the jumper power supply 410, a second electrode of the first PMOS transistor Q6 is electrically connected to the internal power supply 420, and a gate of the first PMOS transistor Q6 is electrically connected to the second end of the fourth N-type transistor Q4.

[0040] Specifically, the gate of the first PMOS tube Q6 is electrically connected to the jump power supply 410 through the first pull-up resistor R5. When the fourth N-type transistor Q4 is in the off state, since the gate of the first PMOS tube Q6 is connected to the jump power supply 410 through the first pull-up resistor R5, the gate of the first PMOS tube Q6 receives a high level signal and remains in the off state. When the fourth N-type transistor Q4 is in the on state, the gate of the first PMOS tube Q6 is grounded through the turned-on fourth N-type transistor Q4, and the gate of the first PMOS tube Q6 receives a low level signal as a turn-on signal and turns on. Thus, when the internal voltage of the internal power supply 420 is greater than or equal to the first voltage, that is, when the internal power supply 420 is not depleted, the first PMOS tube Q6 is not turned on. When the supply voltage of the jump power supply 410 is less than the second voltage or greater than the third voltage, that is, when the supply voltage of the jump power supply 410 does not meet the first voltage range, the first PMOS tube Q6 is not turned on. When the supply voltage of the jump power source 410 is greater than the second voltage and less than the third voltage, that is, when the supply voltage of the jump power source 410 meets the first voltage range, the first PMOS transistor Q6 is turned on.

[0041] In some embodiments, the second switch module includes a second control unit and a second switch unit; the first detection end of the second control unit is electrically connected to the internal power supply, the second detection end of the second control unit is electrically connected to the jumper power supply, the output end of the second control unit is electrically connected to the control end of the second switch unit, the first end of the second switch unit is electrically connected to the jumper power supply, and the second end of the second switch unit is electrically connected to the internal power supply through the transformer module; the second control unit is used to send a conduction signal to the second switch unit when the voltage of the internal power supply is less than the voltage threshold and the supply voltage of the jumper power supply meets the second voltage range.

[0042] Specifically, the second control unit detects the internal voltage of the internal power supply through the first detection end. When the internal voltage is greater than the voltage threshold, it is determined that the internal power supply is not low-power, so there is no need for the jumper power supply to charge it. Even if the power supply voltage of the jumper power supply meets the second voltage range, the second control unit will not send a conduction signal to the second switch unit. When the internal voltage of the internal power supply is less than the voltage threshold, it is determined that the internal power supply has a low-power problem. The second control unit continues to detect the power supply voltage of the jumper power supply. When the power supply voltage of the jumper power supply meets the second voltage range, it is determined that the power supply voltage of the jumper power supply is different from the voltage level of the charging voltage of the internal power supply. The second control unit sends a conduction signal to the second switch unit so that the second switch unit connects the jumper power supply to the transformer module. The transformer module converts the power supply voltage of the jumper power supply into a voltage with the same voltage level as the charging voltage of the internal power supply, and uses the voltage to charge the internal power supply. Thus, the present disclosure realizes that when the voltage level of the jumper power supply is different from that of the internal power supply, the second control unit turns on the second switch unit so that the jumper power supply charges the internal power supply through the transformer module.

[0043] In some embodiments, Figure 3 A schematic diagram of a structure of another jumper control circuit provided in an embodiment of the present disclosure is shown in FIG. Figure 3 As shown, the second control unit includes: a fourth zener diode D4, a fifth zener diode D5, a sixth zener diode D6, a fifth N-type transistor Q7, a sixth N-type transistor Q8, a seventh N-type transistor Q9, an eighth N-type transistor Q10 and a second P-type transistor Q11.

[0044] Exemplarily, the fifth N-type transistor Q7 , the sixth N-type transistor Q8 , the seventh N-type transistor Q9 , and the eighth N-type transistor Q10 may be NPN-type transistors, and the second P-type transistor Q11 may be a PNP-type transistor.

[0045] It should be noted that the fifth N-type transistor Q7, the sixth N-type transistor Q8, the seventh N-type transistor Q9, the eighth N-type transistor Q10 and the second P-type transistor Q11 may also be other devices that can realize switching functions, such as MOS transistors, and are not specifically limited here.

[0046] The cathode terminal of the fourth voltage zener diode D4 is electrically connected to the internal power supply, the anode terminal of the fourth voltage zener diode D4 is electrically connected to the control terminal of the fifth N-type transistor Q7, the first terminal of the fifth N-type transistor Q7 is grounded, and the second terminal of the fifth N-type transistor Q7 is electrically connected to the control terminal of the eighth N-type transistor Q10; wherein, the reverse breakdown voltage of the fourth voltage zener diode D4 is the first voltage; and the first voltage is the undervoltage voltage of the internal power supply.

[0047] The control end of the sixth N-type transistor Q8 is electrically connected to the positive end of the fifth Zener diode D5, the negative end of the fifth Zener diode D5 is electrically connected to the jumper power supply, the first end of the sixth N-type transistor Q8 is grounded, the second end of the sixth N-type transistor Q8 is electrically connected to the control end of the second P-type transistor Q11, the first end of the second P-type transistor Q11 is electrically connected to the jumper power supply, and the second end of the second P-type transistor Q11 is electrically connected to the control end of the eighth N-type transistor Q10; the control end of the seventh N-type transistor Q9 is electrically connected to the positive end of the sixth Zener diode D6, the negative end of the sixth Zener diode D6 is electrically connected to the second end of the second P-type transistor Q11, the first end of the seventh N-type transistor Q9 is grounded, and the second end of the seventh N-type transistor Q9 is electrically connected to the control end of the eighth N-type transistor Q10; the first end of the eighth N-type transistor Q10 is grounded, and the second end of the eighth N-type transistor Q10 is electrically connected to the control end of the second switch unit 310.

[0048] Among them, the reverse breakdown voltage of the fifth zener diode D5 is the fourth voltage, and the reverse breakdown voltage of the sixth zener diode D6 is the fifth voltage; the fourth voltage is the minimum value of the fourth voltage range, and the fifth voltage is the maximum value of the fourth voltage range.

[0049] Specifically, the control end of the fifth N-type transistor Q7 is also grounded through the fourth pull-down resistor R6, the control end of the sixth N-type transistor Q8 is also grounded through the fifth pull-down resistor R7, the control end of the seventh N-type transistor Q9 is also grounded through the sixth pull-down resistor R8, and the control end of the eighth N-type transistor Q10 is also electrically connected to the second end of the second P-type transistor Q11 through the second current limiting resistor R9.

[0050] When the internal voltage of the internal power supply 420 is greater than or equal to the first voltage, the voltage across the fourth voltage zener diode D4 reaches the reverse breakdown voltage of the fourth voltage zener diode D4, and the fourth voltage zener diode D4 is turned on. At this time, the control end of the fifth N-type transistor Q7 receives a high-level signal and turns on, and the control end of the eighth N-type transistor Q10 is grounded through the turned-on fifth N-type transistor Q7. Therefore, no matter how other transistors are turned on or off, the eighth N-type transistor Q10 remains in the off state, and the second switch unit 310 will not receive a turn-on signal. This achieves that when the internal voltage of the internal power supply 420 is greater than or equal to the first voltage, that is, when the internal power supply 420 is not depleted, the second switch unit 310 will not be turned on. As a result, when the internal power supply 420 is not depleted, the jump power supply 410 will not turn on the second switch unit 310 to supply power to the internal power supply 420, or after the jump power supply 410 completes charging for the internal power supply 420, the second switch unit 310 is turned off and stops charging the internal power supply 420.

[0051] When the supply voltage of the jump power supply 410 is less than the fourth voltage or greater than the fifth voltage, that is, the supply voltage of the jump power supply 410 does not meet the first voltage range. When the internal voltage of the internal power supply 420 is less than the first voltage, the fourth voltage zener diode D4 is not turned on, the control end of the fifth N-type transistor Q7 is grounded through the fourth pull-down resistor R6, and the fifth N-type transistor Q7 remains in the off state. When the supply voltage of the jump power supply 410 is less than the fourth voltage, the voltage across the fifth voltage zener diode D5 does not reach the reverse breakdown voltage, the fifth voltage zener diode D5 is not turned on, the control end of the sixth N-type transistor Q8 is grounded through the fifth pull-down resistor R7, the sixth N-type transistor Q8 remains in the off state, the second P-type transistor Q11 also remains in the off state, the branch where the sixth voltage zener diode D6 is located is not turned on, the seventh N-type transistor Q9 remains in the off state, at this time, the control end of the eighth N-type transistor Q10 has no signal access, the eighth N-type transistor Q10 remains in the off state, and the second switch unit 310 does not receive the turn-on signal.

[0052] When the supply voltage of the jump power supply 410 is greater than the fifth voltage, the voltage across the fifth Zener diode D5 reaches the reverse breakdown voltage, the fifth Zener diode D5 is turned on, the control end of the sixth N-type transistor Q8 is connected to the jump power supply 410 to receive a high-level signal, the sixth N-type transistor Q8 is turned on, the control end of the second P-type transistor Q11 is grounded through the turned-on sixth N-type transistor Q8, the second P-type transistor Q11 is turned on, the sixth Zener diode D6 is connected to the jump power supply 410, the voltage across the sixth Zener diode D6 reaches the reverse breakdown voltage, and the sixth Zener diode D6 The control end of the seventh N-type transistor Q9 is connected to the jump power supply 410, and the seventh N-type transistor Q9 is turned on. At this time, the control end of the eighth N-type transistor Q10 is directly grounded through the turned-on seventh N-type transistor Q9, so that the control end of the eighth N-type transistor Q10 receives a low-level signal through the turned-on seventh N-type transistor Q9, instead of receiving a high-level signal provided by the jump power supply 410 through the second current limiting resistor R9. The control end of the eighth N-type transistor Q10 remains disconnected according to the received low-level signal, and the second switch unit 310 will not receive the turn-on signal. Therefore, when the supply voltage of the jump power supply 410 does not meet the first voltage range, it is determined that the supply voltage of the jump power supply 410 cannot charge the internal power supply 420, and the first switch module 200 remains disconnected.

[0053] When the supply voltage of the jump power source 410 is greater than the fourth voltage and less than the fifth voltage, that is, the supply voltage of the jump power source 410 satisfies the first voltage range, when the internal voltage of the internal power source 420 is less than the first voltage, the fourth voltage zener diode D4 is not turned on, the control end of the fifth N-type transistor Q7 is grounded through the fourth pull-down resistor R6, and the fifth N-type transistor Q7 remains in the off state. When the supply voltage of the jump power supply 410 is greater than the fourth voltage and less than the fifth voltage, the voltage across the fifth voltage zener diode D5 reaches the reverse breakdown voltage, the fifth voltage zener diode D5 is turned on, the control end of the sixth N-type transistor Q8 is connected to the jump power supply 410, the control end of the sixth N-type transistor Q8 receives a high level and is turned on, the control end of the second P-type transistor Q11 is grounded through the turned-on sixth N-type transistor Q8, the second P-type transistor Q11 is turned on, the sixth voltage zener diode D6 is connected to the jump power supply 410, the voltage across the sixth voltage zener diode D6 does not reach the reverse breakdown voltage, the sixth voltage zener diode D6 is not turned on, then the control end of the seventh N-type transistor Q9 is grounded through the sixth pull-down resistor R8, and the seventh N-type transistor Q9 remains in the disconnected state according to the received low level signal. At this time, the control end of the eighth N-type transistor Q10 is connected to the jump power supply 410 through the second current limiting resistor R9, and the eighth N-type transistor Q10 is turned on according to the received high level, so that the second switch unit 310 receives the turn-on signal and is turned on. Therefore, the present disclosure realizes that when the voltage level of the jumper power source 410 and the internal power source 420 is the same, the on-off control of the first switch unit is realized through the hardware circuit, so that the rapid control of the charging and disconnection process of the internal power source 420 can be realized. When the internal power source 420 is fully charged, or the supply voltage of the jumper power source 410 is abnormal, the charging of the internal power source 420 can be quickly cut off by utilizing the properties of the hardware circuit, thereby maintaining the charging safety of the internal power source 420.

[0054] In some embodiments, see Figure 3 The second switch unit includes a second PMOS tube; a first electrode of the second PMOS tube Q12 is electrically connected to the jumper power supply 410, a second electrode of the second PMOS tube Q12 is electrically connected to the internal power supply 420 through the transformer module 100, and a gate of the second PMOS tube Q12 is connected to the second end of the eighth N-type transistor Q10.

[0055] Specifically, the gate of the second PMOS tube Q12 is electrically connected to the jump power supply 410 through the second pull-up resistor R10. When the eighth N-type transistor Q10 is in the off state, since the gate of the second PMOS tube Q12 is connected to the jump power supply 410 through the second pull-up resistor R10, the gate of the second PMOS tube Q12 receives a high level signal and remains in the off state. When the eighth N-type transistor Q10 is in the on state, the gate of the second PMOS tube Q12 is grounded through the turned-on eighth N-type transistor Q10, and the gate of the second PMOS tube Q12 receives a low level signal as a turn-on signal and turns on. Thus, when the internal voltage of the internal power supply 420 is greater than or equal to the first voltage, that is, when the internal power supply 420 is not depleted, the second PMOS tube Q12 is not turned on. When the supply voltage of the jump power supply 410 is less than the fourth voltage or greater than the fifth voltage, that is, when the supply voltage of the jump power supply 410 does not meet the second voltage range, the second PMOS tube Q12 is not turned on. When the supply voltage of the jump power source 410 is greater than the fourth voltage and less than the fifth voltage, that is, the supply voltage of the jump power source 410 meets the second voltage range, the second PMOS tube Q12 is turned on.

[0056] In some embodiments, Figure 4 A schematic diagram of a structure of another jumper control circuit provided in an embodiment of the present disclosure is shown in FIG. Figure 4 As shown, the jumper control circuit also includes a voltage acquisition module 500; the transformer module 100 includes a first transformer unit 110, a third control unit 120 and a second transformer unit 130; the first end of the first transformer unit 110 is electrically connected to the internal power supply 420, the second end of the first transformer unit 110 is electrically connected to the power load 430 and the third control unit 120, the first end of the first transformer unit 110 is also electrically connected to the first switch module 200, and the second end of the first transformer unit 110 is also electrically connected to the second switch module 300; the internal power supply 420 is electrically connected to the third control unit 120 through the second transformer unit 130, and the third control unit 120 is electrically connected to the voltage acquisition module 500.

[0057] When the second switch module 300 is turned on, the third control unit 120 is used to receive the supply voltage of the jump power supply 410 and send a boost control instruction to the first transformer unit 110; the first transformer unit 110 is used to convert the supply voltage of the jump power supply 410 into a charging voltage of the internal power supply 420 based on the boost control instruction.

[0058] When the first switch module 200 is turned on, the third control unit 120 is used to receive the power supply voltage provided by the internal power supply 420 through the second transformer unit 130, and send a step-down control instruction to the first transformer unit 110; the first transformer unit 110 is used to convert the power supply voltage of the internal power supply 420 into a load voltage of the power load 430 based on the step-down control instruction.

[0059] Exemplarily, the third control unit 120 is also electrically connected to the control end 203 of the first switch module 200 and the control end 303 of the second switch module 300 through the voltage acquisition module 500. The third control unit 120 can detect the voltage of the control end 230 of the first switch module 200 and the voltage of the control end 303 of the second switch module 300 through the voltage acquisition module 500.

[0060] Take the case where both the first switch module 200 and the second switch module 300 are turned on by low level signals as an example. When the second switch module 300 is turned on, the jumper power supply 410 directly supplies power to the third control unit 120 and the first transformer unit 110 through the turned-on second switch module 300. The third control unit 120 starts after receiving the power supply, and detects the voltage of the control end 230 of the first switch module 200 and the voltage of the control end 303 of the second switch module 300 through the voltage acquisition module 500. Because the second switch module 300 is turned on and the first switch module 200 is turned off at this time, the third control unit 120 detects that the voltage of the control end 303 of the second switch module 300 is 0 according to the voltage acquisition module 500, and determines that the control end 303 of the second switch module 300 is at a low level at this time. The third control unit 120 sends a step-down control instruction to the first transformer unit 110, and the first transformer unit 110 converts the supply voltage of the jumper power supply 410 into the charging voltage of the internal power supply 420 according to the step-down control instruction, so as to realize the charging of the internal power supply 420 by the jumper power supply 410.

[0061] When the first switch module 200 is turned on, the jumper power supply 410 directly supplies power to the internal power supply 420 through the turned-on second switch module 300. At this time, the internal power supply 420 converts the supply voltage of the internal power supply 420 into the power consumption voltage of the third control unit 120 through the second transformer unit 130 to realize power supply to the third control unit 120. The third control unit 120 starts after receiving the power supply, and detects the voltage of the control end 230 of the first switch module 200 and the voltage of the control end 303 of the second switch module 300 through the voltage acquisition module 500. Because the first switch module 200 is turned on and the second switch module 300 is turned off at this time, the third control unit 120 detects that the voltage of the control end 203 of the first switch module 200 is 0 according to the voltage acquisition module 500, and determines that the control end 203 of the first switch module 200 is at a low level at this time. The third control unit 120 sends a boost control instruction to the first transformer unit 110. The first transformer unit 110 converts the power supply voltage of the internal power supply 420 into the load voltage of the power load 430 according to the step-down control instruction, thereby realizing power supply to the power load 430.

[0062] It should be noted that the fact that both the first switch module 200 and the second switch module 300 are turned on by low-level signals is only an example and is not specifically limited here.

[0063] An embodiment of the present disclosure further provides a jumper control device, comprising a jumper control circuit as provided in any of the above embodiments.

[0064] It can be understood that the embodiments of the present disclosure provide a circuit that can achieve the corresponding beneficial effects of any of the jumper control circuits provided in the above-mentioned embodiments, which will not be elaborated here.

[0065] The embodiments of the present disclosure also provide a vehicle, comprising a jump-start control device as provided in the above embodiments.

[0066] It can be understood that the vehicle provided in the embodiment of the present disclosure can achieve the corresponding beneficial effects of the power-on control device provided in the above-mentioned embodiment, which will not be elaborated here.

[0067] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] The above are only specific embodiments of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A jumper control circuit, characterized in that: include: Transformer module; A first switch module, wherein a first end of the first switch module is connected to a jumper power source, and a second end of the first switch module is connected to an internal power source; The first switch module is used to be turned on when the supply voltage of the jumper power supply meets the first voltage range; a second switch module, wherein a first end of the second switch module is connected to the jumper power supply, and a second end of the second switch module is connected to the internal power supply through the transformer module; the second switch module is used to be turned on when the supply voltage of the jumper power supply meets the second voltage range; The voltage conversion module is used to convert the supply voltage of the jump power supply into the charging voltage of the internal power supply.

2. The jumper control circuit according to claim 1, characterized in that: The first switch module includes a first control unit and a first switch unit; The first detection end of the first control unit is electrically connected to the internal power supply, the second detection end of the first control unit is electrically connected to the jumper power supply, the output end of the first control unit is electrically connected to the control end of the first switch unit, the first end of the first switch unit is electrically connected to the jumper power supply, and the second end of the first switch unit is electrically connected to the internal power supply; The first control unit is used for sending a conduction signal to the first switch unit when the voltage of the internal power supply is less than a voltage threshold and the supply voltage of the jumper power supply satisfies a first voltage range.

3. The jumper control circuit according to claim 2, characterized in that: The first control unit includes: a first voltage regulator diode, a second voltage regulator diode, a third voltage regulator diode, a first N-type transistor, a second N-type transistor, a third N-type transistor, a fourth N-type transistor and a first P-type transistor; The cathode terminal of the first voltage zener diode is electrically connected to the internal power supply, the anode terminal of the first voltage zener diode is electrically connected to the control terminal of the first N-type transistor, the first terminal of the first N-type transistor is grounded, and the second terminal of the first N-type transistor is electrically connected to the control terminal of the fourth N-type transistor; wherein the reverse breakdown voltage of the first voltage zener diode is a first voltage; and the first voltage is a power-loss voltage of the internal power supply; The control end of the second N-type transistor is electrically connected to the positive end of the second voltage-stabilizing diode, the negative end of the second voltage-stabilizing diode is electrically connected to the jumper power supply, the first end of the second N-type transistor is grounded, the second end of the second N-type transistor is electrically connected to the control end of the first P-type transistor, the first end of the first P-type transistor is electrically connected to the jumper power supply, and the second end of the first P-type transistor is electrically connected to the control end of the fourth N-type transistor; the control end of the third N-type transistor is electrically connected to the positive end of the third voltage-stabilizing diode, the negative end of the third voltage-stabilizing diode is electrically connected to the second end of the first P-type transistor, the first end of the third N-type transistor is grounded, and the second end of the third N-type transistor is electrically connected to the control end of the fourth N-type transistor; the first end of the fourth N-type transistor is grounded, and the second end of the fourth N-type transistor is electrically connected to the control end of the first switch unit; Among them, the reverse breakdown voltage of the second zener diode is a second voltage, and the reverse breakdown voltage of the third zener diode is a third voltage; the second voltage is the minimum value of the first voltage range, and the third voltage is the maximum value of the first voltage range.

4. The jumper control circuit according to claim 3, characterized in that: The first switch unit includes a first PMOS tube; The first electrode of the first PMOS tube is electrically connected to the jumper power supply, the second electrode of the first PMOS tube is electrically connected to the internal power supply, and the gate of the first PMOS tube is electrically connected to the second end of the fourth N-type transistor.

5. The jumper control circuit according to claim 1, characterized in that: The second switch module includes a second control unit and a second switch unit; The first detection end of the second control unit is electrically connected to the internal power supply, the second detection end of the second control unit is electrically connected to the jumper power supply, the output end of the second control unit is electrically connected to the control end of the second switch unit, the first end of the second switch unit is electrically connected to the jumper power supply, and the second end of the second switch unit is electrically connected to the internal power supply through the transformer module; The second control unit is used for sending a conduction signal to the second switch unit when the voltage of the internal power supply is less than a voltage threshold and the supply voltage of the jump power supply meets a second voltage range.

6. The jumper control circuit according to claim 5, characterized in that: The second control unit includes: a fourth voltage zener diode, a fifth voltage zener diode, a sixth voltage zener diode, a fifth N-type transistor, a sixth N-type transistor, a seventh N-type transistor, an eighth N-type transistor and a second P-type transistor; The cathode terminal of the fourth voltage zener diode is electrically connected to the internal power supply, the anode terminal of the fourth voltage zener diode is electrically connected to the control terminal of the fifth N-type transistor, the first terminal of the fifth N-type transistor is grounded, and the second terminal of the fifth N-type transistor is electrically connected to the control terminal of the eighth N-type transistor; wherein the reverse breakdown voltage of the fourth voltage zener diode is a first voltage; and the first voltage is a power-deficit voltage of the internal power supply; The control end of the sixth N-type transistor is electrically connected to the positive end of the fifth zener diode, the negative end of the fifth zener diode is electrically connected to the jumper power supply, the first end of the sixth N-type transistor is grounded, the second end of the sixth N-type transistor is electrically connected to the control end of the second P-type transistor, the first end of the second P-type transistor is electrically connected to the jumper power supply, and the second end of the second P-type transistor is electrically connected to the control end of the eighth N-type transistor; the control end of the seventh N-type transistor is electrically connected to the positive end of the sixth zener diode, the negative end of the sixth zener diode is electrically connected to the second end of the second P-type transistor, the first end of the seventh N-type transistor is grounded, and the second end of the seventh N-type transistor is electrically connected to the control end of the eighth N-type transistor; the first end of the eighth N-type transistor is grounded, and the second end of the eighth N-type transistor is electrically connected to the control end of the second switch unit; Among them, the reverse breakdown voltage of the fifth zener diode is a fourth voltage, and the reverse breakdown voltage of the sixth zener diode is a fifth voltage; the fourth voltage is the minimum value of the second voltage range, and the fifth voltage is the maximum value of the second voltage range.

7. The jumper control circuit according to claim 6, characterized in that: The second switch unit includes a second PMOS tube; The first electrode of the second PMOS tube is electrically connected to the jumper power supply, the second electrode of the second PMOS tube is electrically connected to the internal power supply through the transformer module, and the gate of the second PMOS tube is electrically connected to the second end of the eighth N-type transistor.

8. The jumper control circuit according to claim 1, characterized in that: The power-on control circuit also includes a voltage acquisition module; The voltage transformation module includes a first voltage transformation unit, a third control unit and a second voltage transformation unit; The first end of the first transformer unit is electrically connected to the internal power supply, the second end of the first transformer unit is electrically connected to the power load and the third control unit, the first end of the first transformer unit is also electrically connected to the first switch module, and the second end of the first transformer unit is also electrically connected to the second switch module; the internal power supply is electrically connected to the third control unit through the second transformer unit, and the third control unit is electrically connected to the voltage acquisition module; When the second switch module is turned on, the third control unit is used to receive the supply voltage of the jump power supply and send a boost control instruction to the first transformer unit; The first voltage conversion unit is used to convert the supply voltage of the jump power supply into the charging voltage of the internal power supply based on the boost control instruction; When the first switch module is turned on, the third control unit is used to receive the power supply voltage provided by the internal power supply through the second transformer unit, and send a step-down control instruction to the first transformer unit; the first transformer unit is used to convert the power supply voltage of the internal power supply into a load voltage of the power load based on the step-down control instruction.

9. A power-on control device, characterized in that: It comprises a jumper control circuit as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: It comprises the jump-start control device as claimed in claim 9.

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