The single-chip microcomputer control 3-phases full controlled trigger system design
Abstract
The application of electronic technology has deep into the agricultural economic construction, transportation, space technology, national defense modernization, medical, environmental protection, and People's Daily life in all areas, enter the new century power electronic technology, so more widely in power electronic technology research is more important. In recent years, more and more application in the national power electronics industry, some advanced technologies of the country, after processing of electric power electronic technology has reached more than half the total energy.
This paper mainly introduces the MCU based on MCS - 51 series three-phase AT89C52 chip controlled rectifier bridge type all control circuit and the circuit principle of trigger circuit and control circuit and software consists of senior programming language C51. Specific operation by frequency voltage transformer in the three-phase after under control chip at different moments of the pulse signal to control the SCR silicon rectifier is corresponding to load power DC. The control mode is the main advantages of high stability and reliability of output waveform characteristics of strong anti-jamming. Trigger circuit structure is simple, flexible control, temperature, control accuracy can be compensated by software, can adjust arbitrarily limits have won the wide recognition. And in many industrial control will get to good use.
Keywords: thyrister MCS - 51 single-chip Microcontroller triggering Angle synchronous signal