High frequency heating system and method thereof

Details High frequency heating system and method thereof High frequency heating system and method thereof

1990-01-05

1991-02-12

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055M, 363 21, 363 97, H05B 668, H02M 7537

Patent

active

049926373

ABSTRACT:
A high frequency heating method includes the steps of controlling a closing period of a switching circuit on the basis of a specified magnetron output value and setting the closing period thereof to a predetermined value. A high frequency heating system includes a heating output control circuit for controlling the closing period thereof on the basis of the specified magnetron output value and an initial output limit circuit for controlling the closing period thereof to a predetermined value.

REFERENCES:
patent: 3392309 (1968-07-01), Hickman
patent: 4777575 (1988-10-01), Yamato et al.
patent: 4866589 (1989-09-01), Satoo et al.
patent: 4866590 (1989-09-01), Odaka et al.
patent: 4931609 (1990-06-01), Aoki
patent: 4933830 (1990-06-01), Sato et al.

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