Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1997-10-27
1999-06-22
Sterrett, Jeffrey
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323272, 363 44, 363 84, G05F 1577
Patent
active
059145889
ABSTRACT:
Various DC/DC converter topologies having improved electromagnetic interference (EMI) characteristics and methods of providing dual DC outputs with such converters. One embodiment of one DC/DC converter having dual, EMI-quiet outputs includes: (1) a first subcircuit, having a series-coupled first switch, first inductor and first capacitor and an output across the first capacitor, coupled between first and second DC input rails, (2) a second subcircuit, having a second switch, second inductor and second capacitor and an output across the second capacitor, coupled between the first and second DC input rails in anti-parallel with the first subcircuit, (3) a first diode coupling a node between the first switch and the first inductor and a node between the second inductor and the second capacitor and (4) a second diode coupling a node between the first inductor and the first capacitor and a second node between the second switch and the second inductor. A further embodiment adds third and fourth series-coupled capacitors coupling the first and second DC input rails and replaces the first and second diodes with: (1) a first converter diode coupling a node between the first switch and the first inductor and a node between the second switch and the second inductor, (2) a first snubber diode coupling a node between the third and fourth capacitors and the node between the first switch and the first inductor and (3) a second snubber diode coupling the node between the third and fourth capacitors and the node between the second switch and the second inductor.
REFERENCES:
patent: 5155430 (1992-10-01), Gulczynski
patent: 5227962 (1993-07-01), Marsh
patent: 5260862 (1993-11-01), Marsh
patent: 5296800 (1994-03-01), Bjorkman et al.
patent: 5412308 (1995-05-01), Brown
patent: 5532577 (1996-07-01), Doluca
patent: 5552695 (1996-09-01), Schwartz
patent: 5677619 (1997-10-01), Doluca
Lucent Technologies - Inc.
Sterrett Jeffrey
LandOfFree
DC/DC converters having dual, EMI-quiet outputs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC/DC converters having dual, EMI-quiet outputs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC/DC converters having dual, EMI-quiet outputs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1710072