Capacitance determination test equipment capable of rapidly charging and discharging

Abstract

The utility model relates to the technical field of charging equipment, in particular to capacitance measurement test equipment capable of rapidly charging and discharging, which comprises a charging circuit and a discharging circuit, and is characterized in that the charging circuit comprises a temperature detection module and an interface connected with a plurality of elements and a chip U1 to form a complex circuit; the circuit comprises an inductor, a capacitor, a diode, a triode, a light emitting diode and other elements and is used for charging voltage adjustment. Part of the elements are connected with the ground, and part of the elements are connected with different interfaces of the chip U1 and other circuits. The charging circuit is formed integrally and is used for charging voltage adjustment and temperature detection. According to the electric appliance characteristics of each stage of the capacitor core charging process, an instruction is sent to the charger, the charger is notified to change the charging voltage and current, and the charger receives the demand from the charging management system, adjusts the output parameters of the charger in real time, and cooperates with the charging management system to realize rapid charging.

Description

Technical Field

[0001] The utility model relates to the technical field of charging equipment, in particular to a test device capable of quickly charging and discharging capacitance. Background Art

[0002] At present, it usually takes 1 hour for the commonly used vehicle charging equipment on the market to fully charge the vehicle. Once you need to drive the vehicle for a long-distance trip or drive the vehicle home, the waiting time for the car to charge is too long, which can easily lead to a bad experience for the driver and passengers, and thus give up charging the electric vehicle. Based on this, in order to improve the charging speed of existing charging equipment, we designed a fast charging and discharging capacitance measurement test equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a fast charging and discharging capacitor measurement test equipment, which sends instructions to the charger according to the electrical characteristics of each stage of the capacitor core charging process, notifying the charger to change the charging voltage and current, and the charger receives the demand from the charging management system, adjusts the output parameters of the charger in real time, and cooperates with the charging management system to achieve fast charging.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A fast charge and discharge capacitance measurement test device, comprising: a charging circuit and a discharging circuit, wherein the charging circuit comprises: a temperature detection module; an RXD port of the temperature detection module is connected to one end of a diode D4, the other end of the diode D4 is respectively connected to one end of an inductor L8, one end of an inductor L12, and one end of a capacitor C8, the other end of the inductor L12 is connected to an interface 1 of a chip U1, the other end of the inductor L8 is respectively connected to one end of an inductor L2, one end of a capacitor C9, one end of a capacitor C7, one end of an inductor L18, and an emitter of a transistor Q4, the other end of the inductor L2 is connected to one end of a light-emitting diode LED2, the other end of the light-emitting diode LED2 is respectively connected to one end of an inductor L6, One end of the light emitting diode LED3 is connected, the other end of the light emitting diode LED3 is connected to one end of the inductor L7, the other end of the inductor L7 is respectively connected to the other end of the capacitor C8, one end of the capacitor C4, one end of the capacitor C1, the interface 2 of the chip U1, one end of the inductor L9, one end of the inductor L10, the charging voltage adjustment unit, one end of the light emitting diode LED1, and one end of the capacitor C20 and grounded, the other end of the capacitor C4 is connected to the other end of the inductor L6, the other end of the inductor L9 is respectively connected to the other end of the inductor L10, one end of the charging core, and one end of the inductor L1, the other end of the inductor L1 is respectively connected to the other end of the capacitor C1 and the interface 3 of the chip U1, the capacitor C9 The other end is grounded, the other end of the capacitor C7 is respectively connected to one end of the inductor L19 and one end of the diode D7 and is grounded, the other end of the inductor L19 is respectively connected to one end of the capacitor C6 and the other end of the inductor L18, the other end of the capacitor C6 is connected to one end of the inductor L20, the other end of the inductor L20 is respectively connected to the collector of the transistor Q4, one end of the inductor L17, one end of the inductor L22, one end of the inductor L21, and one end of the diode D8, the other end of the diode D7 is connected to the base of the transistor Q4, the other end of the diode D8 is respectively connected to one end of the capacitor C11 and one end of the inductor L24, the other end of the capacitor C11 is connected to one end of the inductor L23, and the inductor L2 The other end of 3 is respectively connected to the other end of the inductor L21 and one end of the capacitor C12, the other end of the capacitor C12 is connected to the other end of the inductor L24 and is grounded, the other end of the inductor L17 is connected to one end of the inductor L14 and the collector of the transistor Q6, the other end of the inductor L14 is connected to one end of the diode D5, the base of the transistor Q6 is connected to one end of the diode D6, the other end of the diode D5 is respectively connected to the other end of the diode D6 and one end of the inductor L13, the other end of the inductor L13 is connected to the collector of the transistor Q1, the base of the transistor Q1 is connected to one end of the inductor L15, the other end of the inductor L15 is respectively connected to one end of the capacitor C10 and one end of the inductor L11,The other end of the inductor L11 is respectively connected to one end of the inductor L16 and the interface 5 of the chip U1, the other end of the inductor L16 is respectively connected to the other end of the capacitor C10 and the emitter of the transistor Q1 and grounded, the emitter of the transistor Q6 is respectively connected to the voltage sampling unit, one end of the diode D3, one end of the capacitor C3, and the other end of the charging core, the voltage sampling unit is connected to the interface 4 of the chip U1, the other end of the diode D3 is connected to the other end of the capacitor C3 and grounded, the inductor L22 is sequentially connected to one end of the diode D9 and the diode D10, the other end of the diode D10 is respectively connected to the The other end is connected to the charging voltage adjustment unit, the charging voltage adjustment unit is connected to the interface 6 of the chip U1, the other end of the capacitor C20 is connected to one end of the inductor L35 and grounded, the other end of the inductor L35 is connected to one end of the diode D17, the other end of the diode D17 is respectively connected to the interface 1 of the chip IC, the operational amplifier, one end of the capacitor C15, and one end of the capacitor C16, the other end of the capacitor C16 is respectively connected to the other end of the capacitor C15, one end of the capacitor C17, and the interface 3 of the chip IC and grounded, the other end of the capacitor C17 is connected to the interface 2 of the chip IC, and the interface 4 of the chip IC is connected to the circuit 2. ,

[0006] Optionally, the charging voltage adjustment unit includes: a transistor Q3, an inductor L25, an inductor L26, an inductor L27, an inductor L28, a capacitor C5 and a capacitor C13, the other end of the inductor L7 is respectively connected to the other end of the capacitor C8, one end of the capacitor C4, one end of the capacitor C1, the interface 2 of the chip U1, one end of the inductor L9, one end of the inductor L10, one end of the inductor L25, one end of the capacitor C5, one end of the capacitor C13, the emitter of the transistor Q3, one end of the light emitting diode LED1, and the end of the capacitor C20. One end of the diode D10 is connected and grounded, the other end of the diode D10 is respectively connected to the other end of the light emitting diode LED1 and the collector of the transistor Q3, the base of the transistor Q3 is connected to one end of the inductor L28, the other end of the inductor L28 is respectively connected to the other end of the capacitor C13 and one end of the inductor L27, the other end of the inductor L27 is respectively connected to one end of the inductor L26 and the other end of the capacitor C5, the other end of the inductor L26 is respectively connected to the other end of the inductor L25 and the interface 6 of the chip U1.

[0007] Optionally, the voltage sampling unit includes: inductor L3, inductor L4, inductor L5, and capacitor C2. The other end of the inductor L16 is respectively connected to the other end of the capacitor C10 and the emitter of the transistor Q1 and is grounded. The emitter of the transistor Q6 is respectively connected to one end of the inductor L4, one end of the diode D3, one end of the capacitor C3, and the other end of the charging core. The other end of the inductor L4 is respectively connected to one end of the inductor L3 and one end of the inductor L5. The other end of the inductor L3 is respectively connected to one end of the capacitor C2 and the interface 4 of the chip U1. The other end of the capacitor C2 is connected to the other end of the inductor L5 and is grounded.

[0008] Optionally, the circuit 2 includes: a diode D12, a diode D13, a diode D14, a diode D15, a diode D16, a capacitor C14, a capacitor C18, a capacitor C19, an inductor L29, an inductor L30, an inductor L31, an inductor L32, an inductor L33, an inductor L34, and a power amplifier F2; the interface 4 of the chip IC is respectively connected to one end of the diode D12 and one end of the inductor L29, the other end of the inductor L29 is respectively connected to one end of the capacitor C14, one end of the inductor L30, one end of the diode D13, one end of the diode D14, and one end of the capacitor C19, and the other end of the diode D12 is respectively connected to one end of the inductor L29. One end is respectively connected to the other end of the inductor L30 and the other end of the capacitor C14, the other end of the capacitor C19 is respectively connected to one end of the diode D15 and one end of the diode D16 and grounded, the other end of the diode D13 is respectively connected to the other end of the diode D15, the capacitor C18, one end of the inductor L33, and one end of the inductor L34, the other end of the inductor L33 is respectively connected to the other end of the inductor L34 and the power amplifier F2, the other end of the diode D14 is respectively connected to the other end of the diode D16, one end of the inductor L31, and one end of the inductor L32, and the other end of the inductor L31 is connected to the other end of the inductor L32.

[0009] Optionally, the diode D3, diode D4, diode D5, diode D6, diode D7, diode D8, diode D9, diode D10, diode D12, diode D13, diode D14, diode D15, diode D16, and diode D17 are all voltage-stabilizing diodes.

[0010] Optionally, the discharge circuit includes: a load, a capacitor C21, and a switch; one end of the capacitor C21 is connected to one end of the load, the other end of the load is connected to one end of the switch, and the other end of the switch is connected to the other end of the capacitor C21.

[0011] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0012] The utility model sends instructions to the charger according to the electrical characteristics of each stage of the capacitor core charging process, notifying the charger to change the charging voltage and current, and the charger receives the demand from the charging management system, adjusts the output parameters of the charger in real time, and cooperates with the charging management system to achieve fast charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A circuit schematic diagram of a charging circuit provided by the utility model;

[0014] Figure 2 The present invention provides a circuit schematic diagram of a discharge circuit. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] like Figure 1As shown, the utility model provides one embodiment thereof: comprising: a charging circuit and a discharging circuit, wherein the charging circuit comprises: a temperature detection module; the RXD port of the temperature detection module is connected to one end of a diode D4, the other end of the diode D4 is respectively connected to one end of an inductor L8, one end of an inductor L12, and one end of a capacitor C8, the other end of the inductor L12 is connected to an interface 1 of a chip U1, the other end of the inductor L8 is respectively connected to one end of an inductor L2, one end of a capacitor C9, one end of a capacitor C7, one end of an inductor L18, and an emitter of a transistor Q4, the other end of the inductor L2 is connected to one end of a light-emitting diode LED2, the other end of the light-emitting diode LED2 is respectively connected to one end of an inductor L6 The first end of the inductor L7 is connected to the first end of the inductor L8, the second end of the inductor L9 is connected to the second end of the inductor L10, the first end of the inductor L11 is connected to the first end of the inductor L12, the second end of the inductor L13 is connected to the second end of the inductor L14, the second end of the inductor L15 is connected to the first end of the inductor L16, the second end of the inductor L9 is connected to the second end of the inductor L10, the first end of the inductor L12 is connected to the second end of the inductor L13, and the second end of the inductor L14 is connected to the first end of the inductor L16. The other end of the capacitor C7 is connected to one end of the inductor L19 and one end of the diode D7 and is grounded. The other end of the inductor L19 is connected to one end of the capacitor C6 and the other end of the inductor L18. The other end of the capacitor C6 is connected to one end of the inductor L20. The other end of the inductor L20 is connected to the collector of the transistor Q4, one end of the inductor L17, one end of the inductor L22, one end of the inductor L21, and one end of the diode D8. The other end of the diode D7 is connected to the base of the transistor Q4. The other end of the diode D8 is connected to one end of the capacitor C11 and one end of the inductor L24. The other end of the capacitor C11 is connected to one end of the inductor L23. The other end of 3 is respectively connected to the other end of the inductor L21 and one end of the capacitor C12, the other end of the capacitor C12 is connected to the other end of the inductor L24 and is grounded, the other end of the inductor L17 is connected to one end of the inductor L14 and the collector of the transistor Q6, the other end of the inductor L14 is connected to one end of the diode D5, the base of the transistor Q6 is connected to one end of the diode D6, the other end of the diode D5 is respectively connected to the other end of the diode D6 and one end of the inductor L13, the other end of the inductor L13 is connected to the collector of the transistor Q1, the base of the transistor Q1 is connected to one end of the inductor L15, the other end of the inductor L15 is respectively connected to one end of the capacitor C10 and one end of the inductor L11,The other end of the inductor L11 is respectively connected to one end of the inductor L16 and the interface 5 of the chip U1, the other end of the inductor L16 is respectively connected to the other end of the capacitor C10 and the emitter of the transistor Q1 and grounded, the emitter of the transistor Q6 is respectively connected to the voltage sampling unit, one end of the diode D3, one end of the capacitor C3, and the other end of the charging core, the voltage sampling unit is connected to the interface 4 of the chip U1, the other end of the diode D3 is connected to the other end of the capacitor C3 and grounded, the inductor L22 is sequentially connected to one end of the diode D9 and the diode D10, the other end of the diode D10 is respectively connected to the The other end is connected to the charging voltage adjustment unit, the charging voltage adjustment unit is connected to the interface 6 of the chip U1, the other end of the capacitor C20 is connected to one end of the inductor L35 and grounded, the other end of the inductor L35 is connected to one end of the diode D17, the other end of the diode D17 is respectively connected to the interface 1 of the chip IC, the operational amplifier, one end of the capacitor C15, and one end of the capacitor C16, the other end of the capacitor C16 is respectively connected to the other end of the capacitor C15, one end of the capacitor C17, and the interface 3 of the chip IC and grounded, the other end of the capacitor C17 is connected to the interface 2 of the chip IC, and the interface 4 of the chip IC is connected to the circuit 2. ,

[0017] Specifically, the charging voltage adjustment unit includes: a transistor Q3, an inductor L25, an inductor L26, an inductor L27, an inductor L28, a capacitor C5 and a capacitor C13, the other end of the inductor L7 is respectively connected to the other end of the capacitor C8, one end of the capacitor C4, one end of the capacitor C1, the interface 2 of the chip U1, one end of the inductor L9, one end of the inductor L10, one end of the inductor L25, one end of the capacitor C5, one end of the capacitor C13, the emitter of the transistor Q3, one end of the light emitting diode LED1, and the end of the capacitor C20. One end of the diode D10 is connected and grounded, the other end of the diode D10 is respectively connected to the other end of the light emitting diode LED1 and the collector of the transistor Q3, the base of the transistor Q3 is connected to one end of the inductor L28, the other end of the inductor L28 is respectively connected to the other end of the capacitor C13 and one end of the inductor L27, the other end of the inductor L27 is respectively connected to one end of the inductor L26 and the other end of the capacitor C5, the other end of the inductor L26 is respectively connected to the other end of the inductor L25 and the interface 6 of the chip U1.

[0018] Specifically, the voltage sampling unit includes: an inductor L3, an inductor L4, an inductor L5, and a capacitor C2. The other end of the inductor L16 is respectively connected to the other end of the capacitor C10 and the emitter of the transistor Q1 and is grounded. The emitter of the transistor Q6 is respectively connected to one end of the inductor L4, one end of the diode D3, one end of the capacitor C3, and the other end of the charging core. The other end of the inductor L4 is respectively connected to one end of the inductor L3 and one end of the inductor L5. The other end of the inductor L3 is respectively connected to one end of the capacitor C2 and the interface 4 of the chip U1. The other end of the capacitor C2 is connected to the other end of the inductor L5 and is grounded.

[0019] In the specific application of this embodiment, the charging device includes a power management device and a charging device. The chip of the power management part is placed in the intelligent terminal, and there is an independent power management chip. The power management chip manages and monitors the entire charging process of the core. The charging of the capacitor core includes several stages: pre-charging stage, constant current charging stage, constant voltage charging stage, and trickle charging stage. The charging management chip sends instructions to the charger according to the electrical characteristics of each stage of the capacitor core charging process, notifying the charger to change the charging voltage and current. The charger receives the demand from the charging management system, adjusts the output parameters of the charger in real time, and cooperates with the charging management system to achieve fast charging. At the same time, negative voltage increment control charging circuit can also be used

[0020] More specifically, the circuit 2 includes: a diode D12, a diode D13, a diode D14, a diode D15, a diode D16, a capacitor C14, a capacitor C18, a capacitor C19, an inductor L29, an inductor L30, an inductor L31, an inductor L32, an inductor L33, an inductor L34, and a power amplifier F2; the interface 4 of the chip IC is respectively connected to one end of the diode D12 and one end of the inductor L29, and the other end of the inductor L29 is respectively connected to one end of the capacitor C14, one end of the inductor L30, one end of the diode D13, one end of the diode D14, and one end of the capacitor C19, and the diode D12 is connected to one end of the inductor L30. The other end is respectively connected to the other end of the inductor L30 and the other end of the capacitor C14. The other end of the capacitor C19 is respectively connected to one end of the diode D15 and one end of the diode D16 and grounded. The other end of the diode D13 is respectively connected to the other end of the diode D15, the capacitor C18, one end of the inductor L33, and one end of the inductor L34. The other end of the inductor L33 is respectively connected to the other end of the inductor L34 and the power amplifier F2. The other end of the diode D14 is respectively connected to the other end of the diode D16, one end of the inductor L31, and one end of the inductor L32. The other end of the inductor L31 is connected to the other end of the inductor L32.

[0021] More specifically, the diode D3, the diode D4, the diode D5, the diode D6, the diode D7, the diode D8, the diode D9, the diode D10, the diode D12, the diode D13, the diode D14, the diode D15, the diode D16, and the diode D17 are all voltage-stabilizing diodes.

[0022] like Figure 2 As shown, the discharge circuit includes: a load, a capacitor C21, and a switch; one end of the capacitor C21 is connected to one end of the load, the other end of the load is connected to one end of the switch, and the other end of the switch is connected to the other end of the capacitor C21.

[0023] Capacitors operating below 50V or with a capacity below 1uF can be discharged directly by short-circuiting the two poles of the capacitor with a wire. For larger capacitors, the device principle used in this embodiment is to short-circuit the two ends of the capacitor by connecting high-power and fast-heat-dissipating components in series in the circuit, without causing damage to the capacitor core.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test device capable of rapid charge and discharge capacitance measurement, characterized in that: include: A charging circuit and a discharging circuit, wherein the charging circuit comprises: a temperature detection module; the RXD port of the temperature detection module is connected to one end of a diode D4, the other end of the diode D4 is respectively connected to one end of an inductor L8, one end of an inductor L12, and one end of a capacitor C8, the other end of the inductor L12 is connected to an interface 1 of a chip U1, the other end of the inductor L8 is respectively connected to one end of an inductor L2, one end of a capacitor C9, one end of a capacitor C7, one end of an inductor L18, and an emitter of a transistor Q4, the other end of the inductor L2 is connected to one end of a light-emitting diode LED2, the other end of the light-emitting diode LED2 is respectively connected to one end of an inductor L6 and one end of a light-emitting diode LED3, The other end of the light emitting diode LED3 is connected to one end of the inductor L7, and the other end of the inductor L7 is respectively connected to the other end of the capacitor C8, one end of the capacitor C4, one end of the capacitor C1, the interface 2 of the chip U1, one end of the inductor L9, one end of the inductor L10, the charging voltage adjustment unit, one end of the light emitting diode LED1, and one end of the capacitor C20 and grounded, the other end of the capacitor C4 is connected to the other end of the inductor L6, the other end of the inductor L9 is respectively connected to the other end of the inductor L10, one end of the charging core, and one end of the inductor L1, the other end of the inductor L1 is respectively connected to the other end of the capacitor C1 and the interface 3 of the chip U1, and the other end of the capacitor C9 is grounded. The other end of C7 is respectively connected to one end of the inductor L19 and one end of the diode D7 and is grounded. The other end of the inductor L19 is respectively connected to one end of the capacitor C6 and the other end of the inductor L18. The other end of the capacitor C6 is connected to one end of the inductor L20. The other end of the inductor L20 is respectively connected to the collector of the transistor Q4, one end of the inductor L17, one end of the inductor L22, one end of the inductor L21, and one end of the diode D8. The other end of the diode D7 is connected to the base of the transistor Q4. The other end of the diode D8 is respectively connected to one end of the capacitor C11 and one end of the inductor L24. The other end of the capacitor C11 is connected to one end of the inductor L23. The other end of the inductor L23 The other end of the inductor L21 is connected to the other end of the capacitor C12, the other end of the capacitor C12 is connected to the other end of the inductor L24 and is grounded, the other end of the inductor L17 is connected to one end of the inductor L14 and the collector of the transistor Q6, the other end of the inductor L14 is connected to one end of the diode D5, the base of the transistor Q6 is connected to one end of the diode D6, the other end of the diode D5 is respectively connected to the other end of the diode D6 and one end of the inductor L13, the other end of the inductor L13 is connected to the collector of the transistor Q1, the base of the transistor Q1 is connected to one end of the inductor L15, the other end of the inductor L15 is respectively connected to one end of the capacitor C10 and one end of the inductor L11,The other end of the inductor L11 is respectively connected to one end of the inductor L16 and the interface 5 of the chip U1, the other end of the inductor L16 is respectively connected to the other end of the capacitor C10 and the emitter of the transistor Q1 and grounded, the emitter of the transistor Q6 is respectively connected to the voltage sampling unit, one end of the diode D3, one end of the capacitor C3, and the other end of the charging core, the voltage sampling unit is connected to the interface 4 of the chip U1, the other end of the diode D3 is connected to the other end of the capacitor C3 and grounded, the inductor L22 is sequentially connected to one end of the diode D9 and the diode D10, the other end of the diode D10 is respectively connected to the The other end is connected to the charging voltage adjustment unit, the charging voltage adjustment unit is connected to the interface 6 of the chip U1, the other end of the capacitor C20 is connected to one end of the inductor L35 and grounded, the other end of the inductor L35 is connected to one end of the diode D17, the other end of the diode D17 is respectively connected to the interface 1 of the chip IC, the operational amplifier, one end of the capacitor C15, and one end of the capacitor C16, the other end of the capacitor C16 is respectively connected to the other end of the capacitor C15, one end of the capacitor C17, and the interface 3 of the chip IC and grounded, the other end of the capacitor C17 is connected to the interface 2 of the chip IC, and the interface 4 of the chip IC is connected to the circuit 2. , 2. The fast charge and discharge capacitance test equipment according to claim 1, characterized in that: The charging voltage adjustment unit includes: a transistor Q3, an inductor L25, an inductor L26, an inductor L27, an inductor L28, a capacitor C5 and a capacitor C13, the other end of the inductor L7 is respectively connected to the other end of the capacitor C8, one end of the capacitor C4, one end of the capacitor C1, an interface 2 of the chip U1, one end of the inductor L9, one end of the inductor L10, one end of the inductor L25, one end of the capacitor C5, one end of the capacitor C13, the emitter of the transistor Q3, one end of the light emitting diode LED1, and one end of the capacitor C20. The diode D10 is connected and grounded, the other end of the diode D10 is respectively connected to the other end of the light emitting diode LED1 and the collector of the transistor Q3, the base of the transistor Q3 is connected to one end of the inductor L28, the other end of the inductor L28 is respectively connected to the other end of the capacitor C13 and one end of the inductor L27, the other end of the inductor L27 is respectively connected to one end of the inductor L26 and the other end of the capacitor C5, the other end of the inductor L26 is respectively connected to the other end of the inductor L25 and the interface 6 of the chip U1.

3. The fast charge and discharge capacitance measuring test equipment according to claim 2, characterized in that: The voltage sampling unit includes: an inductor L3, an inductor L4, an inductor L5, and a capacitor C2. The other end of the inductor L16 is respectively connected to the other end of the capacitor C10 and the emitter of the transistor Q1 and is grounded. The emitter of the transistor Q6 is respectively connected to one end of the inductor L4, one end of the diode D3, one end of the capacitor C3, and the other end of the charging core. The other end of the inductor L4 is respectively connected to one end of the inductor L3 and one end of the inductor L5. The other end of the inductor L3 is respectively connected to one end of the capacitor C2 and the interface 4 of the chip U1. The other end of the capacitor C2 is connected to the other end of the inductor L5 and is grounded.

4. The fast charge and discharge capacitance measuring test equipment according to claim 3, characterized in that: The circuit 2 includes: a diode D12, a diode D13, a diode D14, a diode D15, a diode D16, a capacitor C14, a capacitor C18, a capacitor C19, an inductor L29, an inductor L30, an inductor L31, an inductor L32, an inductor L33, an inductor L34, and a power amplifier F2; the interface 4 of the chip IC is respectively connected to one end of the diode D12 and one end of the inductor L29, the other end of the inductor L29 is respectively connected to one end of the capacitor C14, one end of the inductor L30, one end of the diode D13, one end of the diode D14, and one end of the capacitor C19, and the other end of the diode D12 is respectively connected to one end of the capacitor C14, one end of the inductor L30, one end of the diode D13, one end of the diode D14, and one end of the capacitor C19. The other end of the capacitor C19 is respectively connected to one end of the diode D15 and one end of the diode D16 and grounded. The other end of the diode D13 is respectively connected to the other end of the diode D15, the capacitor C18, one end of the inductor L33, and one end of the inductor L34. The other end of the inductor L33 is respectively connected to the other end of the inductor L34 and the power amplifier F2. The other end of the diode D14 is respectively connected to the other end of the diode D16, one end of the inductor L31, and one end of the inductor L32. The other end of the inductor L31 is connected to the other end of the inductor L32.

5. The fast charge and discharge capacitance test equipment according to claim 4, characterized in that: The diode D3, diode D4, diode D5, diode D6, diode D7, diode D8, diode D9, diode D10, diode D12, diode D13, diode D14, diode D15, diode D16 and diode D17 are all voltage-stabilizing diodes.

6. The fast charge and discharge capacitance test equipment according to claim 1, characterized in that: The discharge circuit includes: a load, a capacitor C21, and a switch; one end of the capacitor C21 is connected to one end of the load, the other end of the load is connected to one end of the switch, and the other end of the switch is connected to the other end of the capacitor C21.

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