H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/26
H05B 6/04 (2006.01) H02M 1/08 (2006.01) H02M 5/27 (2006.01) H05B 6/06 (2006.01)
Patent
CA 1104660
ABSTRACT OF THE DISCLOSURE An induction heating apparatus of the invention is provided with a pair of inversely parallel connected thyristors which receives power from a low frequency energy source. Depending on the polarity of the source voltage, one of the thyristors is triggered into con- duction by a control pulse generated in delayed response to a sensed forward bias potential at its anode for the purpose of supplying a forward current to a com- mutating circuit which is tuned to a high frequency in the ultrasonic range, whereupon a backward current is generated. The backward current is commutated through the other thyristor to complete a high frequency oscil- lation. A detector is provided to detect when the magnitude of the backward commutating current reaches a predetermined value for the purpose of terminating the trigger control pulse. The control pulses are sup- plied simultaneously to both thyristors through a pulse transformer which upon termination of the control pulse generates a counterelectromotive force which negatively biases the thyristor which has been conducting during the first half-cycle of each complete oscillation to reduce its turn-off time.
311633
Hamaoka Shigeo
Kiuchi Mitsuyuki
Wakita Hitoshi
Yoshida Hirokazu
Matsushita Electric Industrial Co. Ltd.
Robic Robic & Associes/associates
LandOfFree
Load responsive trigger interval control for induction... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load responsive trigger interval control for induction..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load responsive trigger interval control for induction... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1044775