High stable power supply control circuit of electronic communication equipment

Abstract

The invention discloses a high stable power supply control circuit of electronic communication equipment, which comprises a transformer, a rectifier, first to fifth capacitors, a first diode, a second diode, first to fourth resistors, a field effect tube, a triode, a thyristor and a potentiometer; when output voltage is heightened, the potential of a control terminal of the thyristor is increased, the cathode voltage of the thyristor is reduced, and after regulation of the field effect tube, the potential of an emitter of the triode is increased, so the output voltage is stable. When output current is larger than a set value, the triode is stopped, so the output current is limited within the set value to achieve a current stabilizing aim. Compared with prior art, the high stable power supply control circuit has the advantages that the circuit is simple in structure, adopts less electronic elements, and is low in cost and favorable for popularization, particularly, the high stable power supply control circuit is stable in output voltage and guarantees the stable operation of the communication equipment, the communication quality is improved and the circuit has promotion and use values.

Description

Technical field [0001] The invention relates to a power supply for electronic communication equipment, in particular to a high-stability power supply control circuit for electronic communication equipment. Background technique [0002] Electronic communication equipment includes computers, wireless / wireless communication equipment, processing equipment, control equipment and related supporting equipment, facilities and other electronic equipment, which are used for information processing such as information collection, processing, storage, transmission, and retrieval. In technology, the power circuit of electronic communication equipment has a complex structure and uses many electronic components; the cost is high, it is difficult to popularize, and the voltage output is unstable, which affects the quality of communication information. Summary of the invention [0003] The purpose of the present invention is to provide a highly stable power supply control circuit for electronic co...

AI Technical Summary

Problems solved by technology

[0002] Electronic communication equipment includes computers, wireless / wireless communication equipment, processing equipment, control equipment, and related supporting equipment, facilities, etc. In technology, the power circuit structure of electronic communication equipment is complicated, and many electronic components are used; the cost is high, it is difficult to popularize, and the voltage output is unstable, which affects the quality of communication information

Images