H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 7/10 (2006.01) H05B 41/28 (2006.01) H02M 1/00 (2006.01)
Patent
CA 2052345
Abstract of the Disclosure In a power supply circuit the AC voltage of a commercial AC power source is full-wave rectified by a diode bridge and equally divided into two halves by a series circuit comprising two capacitors connected to the respective output terminals of the diode bridge. A smoothing capacitor and two field effect transistors which are connected in parallel between the output ter- minals of the diode bridge via inductors operate as a half bridge inverter. The electric energy coming from the capacitors is temporarily stored in the inductors so that they act as so many voltage booster choppers according to the operation of first and second reverse- conducting switches. The input voltage supplied from the diode bridge via a voltage divider circuit and the voltage between the two terminals of the smoothing capacitor obtained by way of a diode, a capacitor and a voltage divider circuit are compared by a comparator circuit. Drive circuits are controlled by a control circuit such that the switching operation of the field effect transistors is terminated when the input voltage from the diode bridge has risen above a predetermined level according to the output of the comparator circuit that represents the result of comparison.
Shimizu Keiichi
Uratani Kazuyuki
Marks & Clerk
Toshiba Lighting & Technology Corporation
LandOfFree
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 Power supply circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply circuit will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2033886