Electronic transformer

Abstract

The invention relates to an electronic transformer, which is characterized by comprising that a power supply is respectively electrically connected with a capacitance voltage-reducing regulated power supply and a high voltage rectification direct current working power supply, the capacitance voltage-reducing regulated power supply is electrically connected with a pulse-width modulation (PWM) wave integrated circuit, the PWM wave integrated circuit is electrically connected with a high-frequency driving transformer circuit, the high-frequency driving transformer circuit is electrically connected with a switching transformer circuit, the switching transformer circuit is respectively electrically connected with the high voltage rectification direct current working power supply, a high-frequency rectification circuit, a current sensor and a temperature switching circuit, the current sensor and the temperature switching circuit are electrically connected with the PWM wave integrated circuit, the high-frequency rectification circuit is respectively electrically connected with a load and a voltage stabilizing regulating circuit, and the voltage stabilizing regulating circuit is electrically connected with the PWM wave integrated circuit. The electronic transformer has the advantages of being high in working frequency which ranges from 20KHZ / s to 150KHZ / s, stable in working performance, few in circuit component, low in cost, small in volume, complete in protection function, high in reliability, wide in voltage, current and power ranges and the like.

Description

technical field [0001] The invention relates to a transformer, which is an electronic transformer. Background technique [0002] Transformers are widely used power transformation equipment. The existing mechanical transformers are mainly composed of coils wound on iron cores. The iron cores are large in size and weight, have large energy consumption, low power factor, and are not easy to transport, install and use; The current various switching power supplies (that is, electronic transformers) are also power transformation equipment, which can also convert AC power into DC voltage, and then use electronic devices to convert frequency, adjust width, etc., and then rectify and filter the converted high-frequency voltage, etc., to transform the required voltage. the DC voltage. However, there are complex circuits and high costs. Some are limited by the conditional device circuit and cannot work at high power and high current; Small and light in weight, there are still large v...

AI Technical Summary

Problems solved by technology

We know that under the condition of constant power and input voltage, the higher the operating frequency, the smaller the size of the transformer, and the thyristor switch circuit is doomed to have high power and high current output, but it cannot be reduced. size and cost reduction

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