Power supply circuit and power supply system

Details Power supply circuit and power supply system Power supply circuit and power supply system

2007-08-21

2011-10-04

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S056110, C363S142000

Reexamination Certificate

active

08031490

ABSTRACT:
To provide a power supply circuit which can be applied worldwide without using a high withstand voltage switching element and can supply a load device with stable power. A charging section is arranged between a turn-off capacitor and a load coil. The charging section has the anode connected to the positive terminal of a feedback coil and the cathode connected to the cathode of a zener diode. Thus, when a voltage of a commercial power supply is high, the charging section operates, the turn-off capacitor is quickly charged, an on-period of a transistor is shortened, and an excessive voltage is prevented from being applied between the drain and the source of the transistor. At the same time, an output characteristic indicating relationship between the voltage of the commercial power supply and a current flowing in the load device is permitted to be flat.

REFERENCES:
patent: 4633159 (1986-12-01), Sakane et al.
patent: 5771162 (1998-06-01), Kwon
patent: 5835361 (1998-11-01), Fitzgerald
patent: 5995385 (1999-11-01), Shimamura
patent: 6094362 (2000-07-01), Domingo
patent: 6788556 (2004-09-01), Hosotani et al.
patent: 7012816 (2006-03-01), Amei
patent: 2003/0142521 (2003-07-01), Hosotani et al.
patent: 2004/0252526 (2004-12-01), Amei
patent: 1434562 (2003-08-01), None
patent: 2760850 (2006-02-01), None
patent: 61-1228 (1986-01-01), None
patent: 6-284595 (1994-10-01), None
patent: 8-80042 (1996-03-01), None
patent: 10-94685 (1998-04-01), None
patent: 10-98880 (1998-04-01), None
patent: 3267730 (2002-01-01), None
patent: 2003-284264 (2003-10-01), None
patent: 2005-6477 (2005-01-01), None
English language Abstract of 2003-284264, Oct. 3, 2003.
English language Abstract of 2005-6477, Jan. 6, 2005.
English language Abstract of 61-1228, Jan. 7, 1986.
English language Abstract of 10-94685, Apr. 14, 1998.
English language Abstract of 6-284595, Oct. 7, 1994.
English language Abstract of 8-80042, Mar. 22, 1996.
English language Abstract of 10-98880, Apr. 14, 1998.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4256057