Battery Charge–Discharge Test System — Basic Components
- Product Description
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The battery charge–discharge testing system comprises a master control unit, charge–discharge power units, a data acquisition unit, a human–machine interface and host‑computer unit, drive and protection circuits, a safety‑protection unit, and an auxiliary power‑supply cooling system. Utilizing a high‑precision, programmable bidirectional power circuit, the equipment performs customizable charge–discharge profiles—such as constant‑current and constant‑voltage modes—and continuously acquires real‑time measurements of voltage, current, temperature, and other parameters, enabling accurate calculation of key performance metrics including battery capacity, internal resistance, charge–discharge efficiency, and cycle life. Discharge energy can be dissipated via resistive loads or fed back to the grid, achieving energy savings while maintaining test accuracy. The system incorporates multiple hardware and software safety safeguards to ensure a stable and reliable testing process.
1. The main control unit consists of a DSP/MCU and associated control circuitry, responsible for executing test programs, performing logical decision-making, managing process steps, and processing data.
2. The core control unit of the charge–discharge power module implements constant‑current (CC) and constant‑voltage (CV) charging and discharging of the battery; regenerative‑type equipment further incorporates an energy‑regeneration and inverter circuit.
3. The data acquisition unit precisely measures battery voltage, current, and temperature, providing the basis for capacity estimation, internal resistance testing, and protection control.
4. Human–machine interaction and the host‑computer unit comprise a touch screen and host‑computer software, which are used to edit test sequences, monitor system status, store data, and generate reports.
5. The drive and drive‑protection circuitry powers the power devices, enabling soft start, charge/discharge switching, and rapid fault shutdown.
6. The safety protection unit features dual hardware and software safeguards, including protection against overvoltage, undervoltage, overcurrent, overheating, reverse polarity, short circuits, and leakage current.
7. The auxiliary power supply and cooling system provide power to the control board and the sampling circuit; the cooling system ensures the equipment operates stably over extended periods.
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Huizhou Jinghui Instrument and Equipment Co., Ltd.
Service Hotline:400-1331-882
No. 13, Jinda Road, Huinan Science and Technology Park, Huizhou City, Guangdong Province
E-mail:jh@jhyq.com
