Technology Industry
Industry: Email Alert RSS FeedSingle-chip interleaved PWM controllers for high output current isolated power supplies.(Power Sources & Conditioning Devices)
ECN-Electronic Component News, November, 2003
Texas Instruments has introduced what is said to be the industry's first single-chip, interleaved pulse-width modulation (PWM) controllers for 50A to 100A high current power supplies in off-line and DC/DC converters used in computer servers, telecom, datacom and consumer systems such as plasma display products. The UCC28220 and UCC28221 peak current-mode controllers use advanced interleaving techniques to control two isolated power stages to maximize power density, reduce output current ripple and improve transient response. The devices, available in either interleaved forward or interleaved fly-back isolated topologies, integrate two PWM channels operating at 180[degrees] out of phase to control one high current output. In addition, the controllers provide programmable...
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