Resonant inverter with improved control

Details Resonant inverter with improved control Resonant inverter with improved control

1986-05-27

1987-06-09

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 17, H02P 1320

Patent

active

046725288

ABSTRACT:
A resonant inverter is operated in a manner to provide a substantially constant output voltage to a load. The inverter is controlled using either a frequency control mode or a phase shift control mode. In the frequency control mode, a constant output voltage is maintained through frequency variation of the rectangular wave signal applied to the resonant circuit of the inverter. In the phase shift control mode, constant output voltage is maintained by phase shifting one component signal of the rectangular wave signal relative to another component signal thereof while maintaining constant the frequency of both component signals. Mode switching occurs automatically at the extremities of the operating frequency range of controllable switch means in the resonant inverter.

REFERENCES:
patent: 4276586 (1981-06-01), Boekhorst
patent: 4451041 (1985-09-01), Park et al.
patent: 4535399 (1985-08-01), Szepesi

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