Energy conservation type switch power source

Abstract

The invention belongs to the technical field of power source equipment and relates to an energy conservation type switch power source. Power input with electric supply of 220V is connected with a rectification filter circuit. An output end of the rectification filter circuit is connected with a direct current auxiliary source circuit of 5V in parallel. The output end of the rectification filter circuit is respectively connected with a relay and a Boost converter in series. An output tail end of the rectification filter circuit is respectively and electrically connected with a voltage detection circuit, a current detection circuit and an analog to digital (AD) sampling circuit. An output end of the AD sampling circuit is electrically communicated with a central processing unit (CPU) control circuit. An output end of the CPU control circuit is electrically connected with a high-frequency switch circuit with IR2110. A current detection sampling circuit is electrically connected with a drive circuit. The drive circuit is respectively and electrically connected with the Boost converter, the high-frequency switch circuit with IR2110 and the relay. The relay, the Boost converter and the drive circuit are electrically communicated to form a power main circuit. The energy conservation type switch power source is simple in structure, low in power consumption, high in efficiency, low in noise, strong in anti-jamming capability and wide in voltage stabilization range.

Description

Technical field: [0001] The invention belongs to the technical field of power supply equipment, and relates to a switching power supply with low power consumption and high efficiency, in particular to an energy-saving switching power supply. Background technique: [0002] With the wide application of switching power supplies in computers, communications, aerospace, instrumentation and household appliances, etc., people's demand for them is increasing, and higher requirements are put forward for the efficiency, volume, weight and reliability of power supplies. Requirements, switching power supplies have gradually replaced low-efficiency, bulky and heavy linear power supplies in many aspects with their advantages of high efficiency, small size, and light weight. At present, among the switching power supplies on the market, the 100kHz power supply made of bipolar transistors and the 500kHz power supply made of MOSFETs have been put into practical use, but their efficiency is lo...

AI Technical Summary

Problems solved by technology

At present, among the switching power supplies on the market, the 100kHz power supply made of bipolar transistors and the 500kHz power supply made of MOSFETs have been put into practical use, but their efficiency is low, the switching loss is large, the response time is slow, the noise is large, and the output is not enough. Such a switching power supply will not only affect the surrounding electronic equipment, but also greatly reduce the reliability of the power supply itself.

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