High-power pulse discharging device
By designing a high-power pulse discharge device including a power supply, a pulse trigger control system and multiple parallel discharge circuits, the problem that the prior art cannot realize nanosecond pulse discharge and large current discharge is solved, and discharge tests with higher accuracy and higher power are achieved.
Patent Information
- Application Number
- CN202421593019.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-08
AI Technical Summary
Existing battery discharge cabinets cannot achieve nanosecond pulse discharge time setting and high current discharge, making it difficult to meet the high power and high frequency pulse discharge test requirements.
A high-power pulse discharge device is designed, including a power supply, a pulse trigger control system, multiple parallel discharge circuits and oscilloscopes. Each discharge circuit includes a high-power MOS tube and an adjustable load resistor, which can realize nanosecond-level pulse discharge time setting and large current discharge.
It realizes a shorter time pulse discharge test and a large current discharge test, which is especially suitable for large current and high frequency pulse discharge tests of large battery packs, meeting the testing needs of higher accuracy and higher power.
Smart Images
Figure CN222882808U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of battery detection, and in particular relates to a high-power pulse discharge device. Background Art
[0002] The battery discharge cabinet commonly used in the prior art has a minimum unit of 100 milliseconds for setting the pulse discharge time, which cannot meet the requirements of accurate pulse discharge testing. In addition, the existing discharge cabinet has a large limitation on the discharge current, which can only reach a maximum of 6A, and cannot achieve high-power and high-frequency pulse discharge testing. Therefore, when encountering pulse testing of large battery packs, the existing technology is difficult to implement. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a high-power pulse discharge device, which can realize nanosecond-level pulse discharge time setting and large-current discharge to meet higher requirements of discharge tests.
[0004] The technical solution adopted by the utility model is: a high-power pulse discharge device, including a power supply, a pulse trigger control system, multiple discharge circuits and an oscilloscope, the discharge circuit includes multiple parallel discharge branches, each discharge branch includes a switch tube and a resistive load connected in sequence, each discharge branch is connected to the pulse trigger control system, and the oscilloscope is connected in parallel with each discharge branch for real-time monitoring of the working voltage waveform of each discharge branch.
[0005] The load of the power supply is an adjustable resistance load. After the power supply is connected to the circuit, the load resistance is adjusted to determine the current value flowing in the circuit. The oscilloscope is connected in parallel to both ends of the power supply. As the pulse control system sends out a pulse waveform to control the high-power MOS tube to turn on and off, two states of no-load voltage and load voltage are formed at both ends of the power supply. This waveform is part of the electrical performance parameters of the power supply.
[0006] In the circuit, there are 3 groups of programmable pulse waveform outputs. The period and width of the pulse are set according to the test requirements. It is a means to simulate the user's use in a complex environment and test the electrical performance of the power supply.
[0007] The beneficial effects of the utility model are:
[0008] The utility model can realize a shorter pulse discharge test and a large current discharge test, and is particularly suitable for large current and high frequency pulse discharge tests of large power supplies. Compared with the prior art, the utility model has significant advantages in pulse time and discharge current, and can meet the needs of higher precision and higher power discharge tests. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a circuit diagram of the utility model. DETAILED DESCRIPTION
[0010] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0011] As shown in the figure, a high-power pulse discharge device includes a power supply, a pulse trigger control system, multiple discharge circuits and an oscilloscope, wherein the power supply is a battery or a battery pack, the discharge circuit includes multiple parallel discharge branches, each discharge branch includes high-power MOS tubes (Q1-1, Q1-2, Q2-1, Q2-2, Q3-1, Q3-2) and high-power load resistors (R1, R2, R3) connected in sequence, and protection circuits (D1-1 and R1-1, D2-1 and R2-1, D3-1 and R3-1), forming three independent discharge branches, each discharge branch is independently controlled by the pulse output by the pulse trigger control system, and the oscilloscope is connected in parallel with the power supply to monitor the changing waveform of the power supply output voltage in real time.
[0012] In the circuit, high-power MOS tubes Q1-1 and Q1-2, Q2-1 and Q2-2, and Q3-1 and Q3-2 form three typical switch circuits, which are turned on or off under the control of the pulse voltage output by the pulse trigger system.
[0013] In the circuit, the high-power load resistors R1, R2, and R3 are adjustable loads, which are connected in series in the switch circuit composed of the power supply and three groups of MOS tubes. By adjusting the value of the resistance, the output current value of the power supply can be determined.
[0014] In the circuit, protection diodes D1-1 and R1-1, D2-1 and R2-1, and D3-1 and R3-1 are connected in series between the pulse trigger control system and the high-power MOS tube to form three adjustment circuits, so that the pulse voltage output by the pulse trigger control system matches the high-power MOS tube and the control pulse is not distorted.
[0015] In the circuit, the pulse trigger control system can realize 3 sets of nanosecond pulse discharge time settings, specifically, can generate 3 sets of pulse square waves with a pulse width of more than 1 millisecond.
[0016] The battery load is a resistance-adjustable load, and the load resistance can be conveniently adjusted during testing, thereby adapting to different test requirements.
[0017] In actual testing, an oscilloscope can be used to display and record the real-time changes in the voltage waveform during the pulse discharge process. This high-power pulse discharge device can achieve shorter pulse discharge tests as well as high-current discharge tests. It is particularly suitable for high-current pulse discharge tests of large battery packs to meet different test requirements.
[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high power pulse discharge device, characterized in that: It includes a power supply, a pulse trigger control system, multiple discharge circuits and an oscilloscope. The discharge circuit includes multiple parallel discharge branches. Each discharge branch includes a switch tube and a resistive load connected in sequence. Each discharge branch is connected to the pulse trigger control system. The oscilloscope is connected in parallel with each discharge branch for real-time monitoring of the working voltage waveform of each discharge branch.
2. A high power pulse discharge device according to claim 1, characterized in that: The battery load is a load with adjustable resistance.