Charging device with automatic circuit switching-on and switching-off function

Abstract

The invention discloses a charging device with an automatic circuit switching-on and switching-off function. The device comprises a power-off control circuit, a transformer, a charging circuit, a charging interface and a load interface. The charging circuit maintains normal output of electric energy for the charging interface and the load interface, and the power-off control circuit automaticallypowers off the charging circuit when detecting that the voltage or current of the charging circuit is small. The charging circuit is simple in structure and good in safety performance, and automatic power-off power supply can be achieved. When the voltage or current of the charging circuit is small, namely elements on the circuit are in a standby state, the charging circuit is automatically powered off, power consumption is reduced, and energy is saved. Meanwhile, the rechargeable battery is further arranged and monitors whether a load is connected or not through the load control circuit, whenthe load is connected, the rechargeable battery automatically charges the load, and the automatic connection function of the circuit is achieved.

Description

technical field [0001] The invention relates to the technical field of charging devices, in particular to a charging device with automatic switching on and off of a circuit. Background technique [0002] With the popularity of household appliances and the wide application of office automation, more and more products have a standby function. Although the standby function can save us time and facilitate our quick use of electrical appliances, the standby function also wastes a lot of energy. According to statistics, my country's standby energy consumption accounts for about 10% of China's household power consumption, so reducing standby power consumption not only means saving electricity expenses, but also is more conducive to environmental protection. Although currently there are charging devices with relatively small standby power consumption, they still have standby power consumption, resulting in energy waste. In addition, the current charging device has a single function....

AI Technical Summary

Problems solved by technology

[0002] With the popularity of household appliances and the wide application of office automation, more and more products have a standby function. Although the standby function can save us time and facilitate our quick use of electrical appliances, the standby function also wastes a lot of energy. According to statistics, my country's standby energy consumption accounts for about 10% of China's household power consumption, so reducing standby power consumption not only means saving electricity expenses, but also is more conducive to environmental protection

Although there are currently charging devices with relatively low standby power consumption, they still have standby power consumption, resulting in energy waste

In addition, the current charging device has a single function

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