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实用新型
CN206258563U 一种多功能的锂电池容量测试仪 失效 - 权利终止

一种多功能的锂电池容量测试仪
摘要：
本实用新型公开了多功能的锂电池容量测试仪；包括电源电路、第一、二MCU芯片、D/A模块、二路切换开关、电压跟随器、电压比较器、MOSFET管、继电器开关和显示模块；第一MCU芯片通过串口与上位机连接；串口与第一MCU芯片连接；第一MCU芯片通过D/A模块与二路切换开关连接；二路切换开关依次通过电压跟随器和电压比较强与MOSFET管连接；本实用新型提供的锂电池容量测试仪通过电压跟随器来增加系统的稳定性；电压比较器通过比较功率电阻端的电压和电压跟随器输出端的电压动态地控制MOSFET管的通断，达到对电池进行放电的目的；通过第二MCU芯片产生PWM波对继电器进行通断控制，实现提高锂电池放电实验的精度。
摘要（英）：

The utility model discloses a multi -functional lithium battery capacity tester, including power supply circuit, first, two MCU chips, DA module, two -way change over switch, voltage follower, voltage comparater, MOSFET pipe, relay switch and display module, a MCU chip passes through serial ports and upper computer connection, the serial ports is connected with a MCU chip, a MCU chip passes through the DA module and is connected with two -way change over switch, two -way change over switch loops through voltage follower and the voltage ratio is strong and the MOSFET union coupling, the utility model provides a lithium battery capacity tester comes the stability of add -on system through voltage follower, voltage comparater controls the break -make that MOSFET managed through comparison power discharger resistor's the voltage and the voltage of voltage follower output dynamicly, reaches and carries out exoelectric purpose to the battery, produce the PWM ripples through the 2nd MCU chip and carry out on -off control to the relay, realize improving the precision of lithium battery discharge experiment.

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