High-power switching circuit

Abstract

The invention provides a high-power switching circuit comprising an input power source (100), a multivibrator (101), a voltage doubling circuit (102), a switch control circuit (103), and a power switch (104). The input power source (100) consists of a first input power source and a second input power source; the first input power source provides a first input voltage and the second input power source provides a second input voltage; and the first input voltage value and the second input voltage value are not equal. The multivibrator (101) outputs a square wave to the voltage doubling circuit (102), wherein the amplitude of the square wave is equal to the voltage value of the first input voltage. The voltage doubling circuit (102) outputs a voltage-doubling voltage to the switch control circuit (103) under the effect of the square wave and the first input voltage, wherein the voltage value is one doubling the first input voltage value. After turning off a switch K1, the switch control circuit (103) outputs the voltage-doubling voltage to the power switch (104). The power switch (104) outputs a first operating voltage and a second operating voltage under the effect of the first input voltage and the second input voltage.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a switch circuit, in particular to a high-power switch circuit. Background technique [0002] A high-power switching circuit refers to a control circuit that has two states of "on" and "off" in a high-current loop. With the vigorous development of the entire electronics industry and the continuous advancement of electronic technology, the application of high-power switching circuits is becoming more and more extensive. [0003] In the high-power switching circuit of the prior art, due to design defects or unreasonable driving, etc., the high-power switching circuit of the prior art has low withstand voltage, high power consumption, easy to generate heat, and slow response speed of the switch, resulting in the switching circuit Low output efficiency, low power, large voltage drop, large volume, unstable operation, and even burnt circuit components. Contents of the i...

AI Technical Summary

Problems solved by technology

[0003] In the high-power switching circuit of the prior art, due to design defects or unreasonable driving, etc., the high-power switching circuit of the prior art has low withstand voltage, high power consumption, easy to generate heat, and slow response speed of the switch, resulting in the switching circuit Low output efficiency, low power, large voltage drop, large volume, unstable operation, and even burnt circuit components

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