Driving circuit for motor and power supply

Abstract

The invention relates to a driving circuit for a motor and a power supply. The driving circuit comprises a lightening protection circuit, an EMI filtering circuit, an input rectification circuit, a power factor correction circuit, a first output branch circuit and a second output branch circuit, wherein the first output branch circuit and the second output branch circuit are arranged in parallel;the lightning protection circuit releases and suppresses the energy of a lightning signal when the AC input end is struck by lightning; the EMI filtering circuit performs EMI filtering on an input ACsignal; the input rectification circuit receives the EMI filtered AC signal and carries out rectification to output a DC signal; the power factor correction circuit boosts the DC signal to output a boost signal; the first output branch circuit outputs a first output signal and adjusts the first output signal according to the feedback of the first output signal; and the second output branch circuitoutputs a second output signal and adjusts the second output signal according to the feedback of the second output signal. The driving circuit can provide safe and reliable power supply for the motorand the system, thereby ensuring stable and safe operation of equipment under different environmental conditions.

Description

technical field [0001] The present invention relates to the technical field of driving power supply, and more specifically, relates to a driving circuit and a driving power supply for a motor. Background technique [0002] With the rapid development of artificial intelligence technology, people are beginning to pursue more comfortable and convenient smart living and office environments, and intelligent applications have become an important way to build smart communities, smart offices, and smart cities. Nowadays, face recognition gates can be seen in commercial buildings, corporate headquarters, high-speed rail stations, railway stations, airports, customs, factories, etc. [0003] The use of "face-swiping" gates provides great convenience for people's life, office and travel, strengthens the management of passers-by and public safety, and makes the safety level, working environment and management mode of each occasion all obtained. upgrade. [0004] The gate power supply ...

AI Technical Summary

Problems solved by technology

[0005] As the space and volume of the current gates are getting smaller and smaller, the traditional way of power supply with two power supplies takes up too much space, so the demand for small-sized power supplies is more urgent; in addition, the traditional adapter power supply generally uses a plastic shell, which is relatively Poor heat dissipation leads to an increase in the internal temperature rise of the power supply, which seriously affects the reliability of the power supply. At the same time, the radiated heat increases the temperature rise of the internal environment of the gate, causing potential hidden dangers to the gate

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