Abstrst:Along with the development of frequency converted speed and microcomputer control technology, the Intel 8XC196MC series single chip micrcomputer are applied more and more extensive. 8XC196MC is the most newly sigle chip microcomputer relased by the famous Intel company of American in 1992.It,s one main advantages is it has 1 three mutually Wave Form Generator(WFG), which can expediently produce three rightnesses of symmetry PWM wave forms, suitable for specially feat in communicate the control of electrical engineering, in the meantime, it has function Gao, all of function, the customer uses convenience etc. the characteristics be a particularly high-speed processing ability and to the special application of alternate current, so it necessarily will at our country of intelligence realm control extensively applied, will also bring considerable economic performance.
87C196MC is one of the high performance microprocessors designed specially for the electrical engineering control by Intel company which is put to use in this control chip of speed requlating system ,we make use of the WFG in the internal of the microprocessor which directly produces three-phase modulate wave with the software
The main study contents of This text includes:There detailed expounds the SPWM calculate way controled by single chip microcomputer、The parameter compute of Wave Form Generator、related deposit machine and the establish Of dead time etc.based on 87C196MC. In this foundation top ,finish the software design of the wave generate,and write a integrity procedure.
Keyword: Three-phase Wave Form Generator(WFG) The sine wave pulse width modulation(SPWM) AC electrical machinery Frequency converted speed
