Battery and control circuit thereof

Abstract

The invention provides a battery and a control circuit thereof. According to the control circuit of the battery, a base electrode of a switch tube is connected with one end of a second resistor and one end of a first resistor, an emitting electrode of the switch tube is connected with a positive electrode of the battery, and a collector electrode of the switch tube is connected with one end of a third resistor and one end of a fourth resistor respectively; the other end of the second resistor is connected with a positive electrode of a first diode, and a negative electrode of the first diode is connected with a positive electrode of a direct-current power output end; the other end of the first resistor is connected with the positive electrode of the battery; the negative electrode of the first diode is connected with a negative electrode of a second diode, a negative electrode of a first voltage stabilizing diode and a negative electrode of a second voltage stabilizing diode, and a positive electrode of the second diode is connected with a positive electrode of a direct-current power input end; and a positive electrode of the first voltage stabilizing diode is connected with one end of a fifth resistor, the second voltage stabilizing diode is connected with one end of a seventh resistor, and the other end of the seventh resistor is connected with one end of an eighth resistor. By means of the battery and the control circuit, the static discharge current is reduced.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a battery and a control circuit thereof. Background technique [0002] The output voltage Vch of the power supply is greater than the voltage Vb of the battery VB. The battery VB is used to control the switching on and off of the AC power supply. The power supply system will not be connected to the AC power supply when there is no load. Only when the positive pole (DC OUT+) of the DC power supply output terminal and the negative pole (DC OUT-) of the DC power supply output terminal are connected to the load, the AC power supply will be turned on to work. In the prior art, an isolation diode is used between the positive pole of the DC power input terminal of the line and the positive pole of the DC power output terminal to isolate the positive pole (DC OUT+) of the battery VB to the DC power output terminal and the negative pole (DC OUT- ), but the output current will g...

AI Technical Summary

Problems solved by technology

In the prior art, an isolation diode is used between the positive pole of the DC power input terminal of the line and the positive pole of the DC power output terminal to isolate the positive pole (DC OUT+) of the battery VB to the DC power output terminal and the negative pole (DC OUT- ), but the output current will produce a voltage drop of about 0.7V when passing through the isolation diode, which is the increase in the internal energy loss of the power supply Plost=0.7xID, thereby reducing the conversion efficiency of the power supply

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