Electric power voltage control system

Abstract

The invention discloses an electric power voltage control system. The electric power voltage control system includes a filter, a rectification filter circuit, a DC / DC transformation circuit, an auxiliary power supply, an inversion circuit, a driving control circuit and a voltage doubling circuit, wherein the filter is connected with 220V alternating current, the auxiliary power supply and the rectification filter circuit; the rectification filter circuit is also connected with the DC / DC transformation circuit; the DC / DC transformation circuit is also connected with the inversion circuit and the driving control circuit; the inversion circuit is connected with an output terminal Vo through a high-frequency transformer and the voltage doubling circuit successively; and the driving control circuit is also connected with the other end of the auxiliary power supply. The electric power voltage control system can effectively solve the problem that in the background technology, the accuracy is not high and the stability is low by redesigning the whole system and performing optimal design on the DC / DC transformation circuit, and has the advantages of being simple in system structure, being small in volume and being wide in the application range.

Description

technical field [0001] The invention relates to a control system, in particular to a power voltage control system. Background technique [0002] Most electrical equipment needs to work normally at a specified voltage, but in some occasions where the voltage is low, it is necessary to boost the existing voltage. Currently, the simplest boost method on the market is realized by a voltage regulator. Boost, which mainly uses carbon brushes to adjust on the transformer. The disadvantage of this boost method is that when the carbon brushes work for a long time, there will be certain mechanical wear and tear, regular maintenance is required, and there is a certain mechanical failure rate; The relay switching method, the disadvantage of this method is that the output voltage is discontinuous, the precision is not high, and the purpose of high-precision voltage stabilization output cannot be achieved, and there are also cases of wear of the relay contacts. Especially in some flammab...

AI Technical Summary

Problems solved by technology

[0002] Most electrical equipment needs to work normally at a specified voltage, but in some occasions where the voltage is low, it is necessary to boost the existing voltage. Currently, the simplest boost method on the market is realized by a voltage regulator. Boost, which mainly uses carbon brushes to adjust on the transformer. The disadvantage of this boost method is that when the carbon brushes work for a long time, there will be certain mechanical wear and tear, regular maintenance is required, and there is a certain mechanical failure rate; The relay switching method, the disadvantage of this method is that the output voltage is discontinuous, the precision is not high, and the purpose of high-precision voltage stabilization output cannot be achieved, and there are also cases of wear of the relay contacts.

Especially in some flammable and explosive occasions, such as gas stations, etc., there is a contact adjustment method, which is easy to spark and cause a fire, and there are certain hidden dangers to personal and property safety.

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