Voltage detection type inverter power supply for charging based on overvoltage protection circuit

Abstract

The invention discloses a charging voltage detection type inverter power supply based on an overvoltage protection circuit, which is characterized in that it mainly consists of a control chip U2, a transformer T, a diode rectifier U1, a bidirectional switch S, a storage battery J, and a bidirectional switch S. The overvoltage protection circuit connected to the b contact, the polar capacitor C1, the polar capacitor C13, the polar capacitor C12, the polar capacitor C11, and the voltage detection circuit are respectively connected to the CHRG1 pin, CHRG2 pin and PROG of the control chip U2 It is composed of a step-up adjustment circuit connected to the pins, and a non-linear amplifier circuit connected with the step-up adjustment circuit and the a contact of the bidirectional switch S and the inductance coil of the primary side of the transformer T respectively. The invention can eliminate or suppress the interference surge in the output current, effectively improve the ability of the invention to suppress the pulsation of the output current, and keep the output current stable.

Description

technical field [0001] The invention relates to a charging power supply, in particular to a charging voltage detection type inverter power supply based on an overvoltage protection circuit. Background technique [0002] Charging power rectifying device used for battery charging. In the early days, the AC motor-DC generator set, also known as the rotary unit, was used as the charging power source. After the 1960s, this charging power source was replaced by the charging power source composed of electronic devices. However, the existing charging power supply composed of electronic devices often adopts double transformers, which makes the cost of the charging power composed of electronic devices relatively high; the output power of the charging power composed of such electronic devices is also very low, resulting in poor load capacity; and, The existing charging power supply composed of electronic devices has poor ability to suppress output current pulsation, and has the proble...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of low output power and unstable output voltage of the existing charging power supply composed of electronic devices, and provide a voltage detection type inverter power supply for charging based on an overvoltage protection circuit

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