Input-output double-wide-voltage low-power-consumption power supply, electric vehicle electric appliance part and electric vehicle

Abstract

The invention discloses an input-output double-wide-voltage low-power-consumption power supply, an electric vehicle electric appliance part and an electric vehicle. The power supply comprises five resistors, two diodes, two triodes, an inductor, a capacitor and an integrated chip TL431. The triode V1 is connected with an inductor L1, and the other end of the inductor L1 is connected with a power output anode. The filter capacitor C1 is connected to the output port in parallel. The anode of the fly-wheel diode E1 is grounded, and the cathode is connected with the input end of the inductor to form a fly-wheel loop. The TL431 detects the voltage of the output port of the power supply, and controls the switching of the triode V1 through the triode V2, thereby achieving the constant-voltage output. The follow current characteristic and the current slow mutation characteristic of the inductor are utilized, the integrated chip TL431 is used as a voltage control center, and a traditional low-power power supply circuit is greatly optimized. Wide input and output voltage, low power consumption, small ripple, high reliability and low cost are realized. The power supply circuit is adopted in the electric appliance part of the electric vehicle. The electric vehicle is provided with the electric vehicle electric appliance part.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to various electrical components of electric vehicles. Background technique [0002] The "electric vehicle" described in the present invention includes batteries such as electric vehicles, electric buses, electric buses, electric sightseeing cars, electric sweepers, electric forklifts, electric children's vehicles, electric bicycles, electric mopeds, electric motorcycles, electric tricycles, etc. powered vehicles. [0003] All electronic equipment needs a low-power power supply inside, and its input voltage is usually 24V~600V, and most of them use figure 2 The traditional power supply circuit shown in the figure obtains 12V through DC / DC conversion, and then applies multiple power chips such as LM7805, LDO1117-3.3, etc. to obtain 5V, 3.3V, 1.5V, etc. The problems with this conventional power supply circuit are as follows: [0004] 1. High power consumption. fig...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problems of large power consumption, narrow voltage range, high cost, low reliability, poor circuit independence, and large ripple in traditional low-power power supply circuits

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