The invention relates to a power supply charging device capable of adjusting voltage and current in a wide range. The power supply charging device comprises a rectification filter circuit, a DC-DC conversion circuit, a filter circuit, a voltage and current sampling circuit, a feedback amplification circuit, a switch control circuit, a master control MCU chip and an independent power supply circuit, wherein an output end of the rectification filter circuit is connected with an input end of the DC-DC conversion circuit, and an output end of the DC-DC conversion circuit is connected with an input end of the filter circuit; an output end of the filter circuit is connected with an input end of the voltage and current sampling circuit, an output end of the voltage and current sampling circuit is connected with a sampling input end of the feedback amplification circuit, an output end of the feedback amplification circuit is connected with an input end of the switch control circuit, and an output end of the switch control circuit is connected with a control end of the DC-DC conversion circuit; an output end of the independent power supply circuit is connected with a power end of the switch control circuit; and a PWM input end of the feedback amplification circuit is connected with the master control MCU chip. According to the power supply charging device, different voltage or current outputs can be configured so as to adapt to batteries of various models.
本发明涉及一种宽范围可调压调流的电源充电装置,包括整流滤波电路、DC‑DC变换电路、滤波电路、电压电流取样电路、反馈放大电路、开关控制电路、主控MCU芯片和独立供电电路;整流滤波电路的输出端连接DC‑DC变换电路的输入端,DC‑DC变换电路的输出端连接滤波电路的输入端;滤波电路的输出端连接电压电流取样电路的输入端,电压电流取样电路的输出端连接反馈放大电路的取样输入端,反馈放大电路的输出端连接开关控制电路的输入端,开关控制电路的输出端连接DC‑DC变换电路的控制端;独立供电电路的输出端连接开关控制电路的电源端;反馈放大电路的PWM输入端与主控MCU芯片连接。本发明能够配置不同的电压或电流输出,以便适应多种型号的电池。
Power supply charging device capable of adjusting voltage and current in wide range
一种宽范围可调压调流的电源充电装置
2021-05-14
Patent
Electronic Resource
Chinese
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