Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1999-02-02
2000-02-29
Berhane, Adolf Deneke
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 21, H02M 542, H02M 3335
Patent
active
060317485
ABSTRACT:
Power saving circuit of a power factor adjusting type, including a rectifying and smoothing part for rectifying, and smoothing an AC power into a DC voltage, a transformer connected to an output terminal on the rectifying and smoothing part for boosting the DC voltage to a level in proportion to a winding ratio thereof, a plurality of field effect transistors each connected to the rectifying and smoothing part and a ground terminal of the transformer for switching the DC voltage, and a voltage cutting off part connected to a gate terminal of the field effect transistor and a rectified voltage output terminal on the transformer for cutting off voltage generation in a primary winding and a secondary winding by means of photocoupler on reception of a control signal in a DPM mode, whereby complying with the standards both of the U.S.A and the Europe for a DPM mode by reducing a power consumption in the primary winding of a transformer in a DPM mode of a monitor and allowing the circuit to be produced at a low cost because no additional serve power is required for the DPM mode.
REFERENCES:
patent: 5465039 (1995-11-01), Narita et al.
patent: 5519286 (1996-05-01), Rodrigues et al.
patent: 5565761 (1996-10-01), Hwang
patent: 5581453 (1996-12-01), Ueta et al.
patent: 5774347 (1998-06-01), Nakanishi
patent: 5910891 (1999-06-01), Jo
Berhane Adolf Deneke
LG Electronics Inc.
LandOfFree
Power saving circuit of power factor adjusting type 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 saving circuit of power factor adjusting type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power saving circuit of power factor adjusting type will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-688792