Magnetron with full wave bridge inverter

Electric heating – Metal heating – Of cylinders

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

363 17, 363 98, H05B 664

Patent

active

050120581

ABSTRACT:
An arrangement for providing power to a cooking magnetron uses a full wave bridge inverter circuit. Four semiconductor switches, pairs of which are switched on and off by a pulse width modulation control circuit provide power to a primary winding of a power transformer. A secondary winding of the power transformer supplies the power to the magnetron. The control circuit switches two of the four transistors on and off by way of an isolated drive circuit such that the control terminals of the semiconductor switches float with respect to the other two semiconductor switches. The control circuit includes pulse width modulation circuitry which provides a control pulse having a width proportional to an input provided across a transconductance amplifier. A signal dependent upon magnetron current is used as part of a feedback loop such that a magnetron current is stabilized against variations due to line voltage changes.

REFERENCES:
patent: 3396342 (1968-08-01), Feinberg
patent: 3495129 (1970-02-01), Donner et al.
patent: 3564384 (1969-01-01), Adler
patent: 3735237 (1973-05-01), Derby
patent: 3969652 (1976-07-01), Herzog
patent: 3973165 (1976-08-01), Hester
patent: 4071812 (1978-01-01), Walker
patent: 4105957 (1978-08-01), Cathell
patent: 4204266 (1980-05-01), Kammiller et al.
patent: 4281372 (1981-07-01), Kornrumpf
patent: 4318165 (1982-03-01), Kornrumpf et al.
patent: 4404623 (1983-09-01), Jourdan
patent: 4408267 (1983-10-01), Pruitt
patent: 4475149 (1984-10-01), Gallios
patent: 4593167 (1986-06-01), Nilssen
patent: 4672159 (1987-06-01), Nilssen
patent: 4680506 (1987-07-01), Nilssen
patent: 4710686 (1987-12-01), Guzik

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Magnetron with full wave bridge inverter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetron with full wave bridge inverter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetron with full wave bridge inverter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-642041

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.