Switching mode power supply incorporating power line filter

Details Switching mode power supply incorporating power line filter Switching mode power supply incorporating power line filter

2005-03-15

2005-03-15

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

Starting circuits

C363S050000, C363S044000

Reexamination Certificate

active

06867575

ABSTRACT:
There is disclosed a switching mode power supply with a reduced EMI effect, comprising a rectifier for converting an AC power supplied by an AC power source into a rectified DC power, a transformer coupled to the rectifier for inputting the DC power from a primary winding and inducing a rectified power to a secondary winding through the primary winding, a switch unit connected in series with the primary winding for converting the DC power supplied to the primary winding into AC power by on/off operations, an output voltage feedback control circuit for providing pulses to drive the switch unit by controlling a switching duty cycle of the switching unit, and a power line filter including a unidirectional current-limiting device such as a diode for reducing differential mode noise appearing between a live supply line and a neutral line from the alternating current power source.

REFERENCES:
patent: 5179362 (1993-01-01), Okochi et al.
patent: 6181084 (2001-01-01), Lau
patent: 6489755 (2002-12-01), Boudreaux et al.
patent: 6538906 (2003-03-01), Ke et al.
patent: 6577512 (2003-06-01), Tripathi et al.
patent: 6597075 (2003-07-01), Goodrich, II
patent: 6697269 (2004-02-01), Kwon

Affiliated with

Also associated with

Rating

Switching mode power supply incorporating power line filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3407286