Gate power supply circuit

H - Electricity – 02 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H02M 7/12 (2006.01) H02M 1/08 (2006.01) H03K 17/0814 (2006.01) H03K 17/10 (2006.01)

Patent

CA 2106325

A gate power supply circuit including a switching device and a gate drive circuit connected to the switching device for generating a gate signal to be supplied to a gate of the switching device. The gate power supply circuit further includes a series circuit of a snubber capacitor and a snubber diode connected in parallel with the switching device, and an inductor, a first terminal of which is connected to a connection point of the switching device and the snubber diode. The gate power supply circuit also includes a series circuit of power disposing circuit and a first diode, connected between a series connection point of the snubber capacitor and the snubber diode and a second terminal of the inductor. The gate power supply circuit further includes a series circuit of a power supplying capacitor and a second diode, connected in parallel with the inductor. The gate drive circuit is connected to the power supplying capacitor to receive energy stored in the power supplying capacitor as power source for the gate drive circuit.

L'invention concerne un circuit d'alimentation de grille qui comprend un dispositif de commutation auquel est raccordé un circuit d'attaque de la grille pour générer un signal à envoyer à la grille du dispositif de commutation. Le circuit d'alimentation comporte également un circuit de condensateur d'amortissement monté en série et une diode d'amortissement raccordée en parallèle au dispositif de commutation, de même qu'une bobine d'inductance, dont une borne est raccordée à une connexion du dispositif de commutation et de la diode d'amortissement. Le circuit d'alimentation de la grille comprend aussi un circuit de stockage monté en série et une première diode, raccordés entre un point de connexion en série du condensateur d'amortissement et de la diode d'amortissement et une deuxième borne de la bobine d'inductance. Le circuit d'alimentation de la grille comporte en outre un circuit de condensateur d'alimentation monté en série et une deuxième diode, raccordés en parallèle à la bobine d'inductance. Le circuit d'attaque de la grille est raccordé au condensateur d'alimentation pour recevoir l'énergie stockée dans celui-ci, laquelle sert de source d'alimentation pour le circuit d'attaque de la grille.

LandOfFree

Say what you really think

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

Rating

Gate power supply circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gate power supply circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gate power supply circuit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1417062

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