Solid state ac switch with self-synchronizing means for...

Details Solid state ac switch with self-synchronizing means for... Solid state ac switch with self-synchronizing means for...

H - Electricity

03

K

H03K 17/00 (2006.01) H02M 5/293 (2006.01) H03K 17/687 (2006.01)

Patent

CA 2203050

A solid state power switching circuit for alternating current loads, in which operating power for the circuit is diverted from the switched current during power stealing intervals self-synchronized with the alternating current waveform. During periods in which current to the load is commanded, a load current switch is maintained in a low impedance state except for the duration of a short power stealing interval each half-cycle of the supplied alternating current. Self-synchronization is achieved with a current detector which senses whether or not the magnitude of the current diverted during each power stealing interval exceeds a current threshold, and pulse generator logic which shifts the power stealing intervals in time relative to the alternating current waveform in response to the previously sensed current magnitude.

L'invention est un circuit de commutation d'alimentation à semi-conducteur pour les charges à courant alternatif. Le courant d'alimentation du circuit est détourné du courant commuté durant des intervalles de détournement de courant autosynchronisé avec la forme d'onde du courant alternatif. Durant les périodes où le courant transmis à la charge est contrôlé, le commutateur de courant de charge est maintenu dans un état de basse impédance, sauf durant un bref intervalle de détournement de courant à chaque demi-cycle du courant alternatif fourni. L'autosynchronisation est exécutée par un détecteur de courant qui détermine si l'intensité du courant détourné durant chaque intervalle de détournement dépasse un certain seuil, et par un circuit logique générateur d'impulsions qui déplace les intervalles de détournement dans le temps par rapport à la forme d'onde du courant alternatif selon l'intensité du courant détecté précédemment.

Affiliated with

Also associated with

Rating

Solid state ac switch with self-synchronizing means for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid state ac switch with self-synchronizing means for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid state ac switch with self-synchronizing means for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1500644