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Article: Simple circuit allows long PWM soft starts.
- Article from:
- EDN
- Article date:
- February 1, 2007
CopyrightCOPYRIGHT 2007 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Robert N Buono, Aeolian Audio LLC, Bloomfield, NJ
Edited by Brad Thompson and Fran Granville
Available from multiple sources, the UC384X family of current-mode, PWM (pulse-width-modulated) power-supply controllers offers good performance and has spawned a variety of similar ICs. All members of the UC384X family and its variants share a common characteristic--an internal voltage-error amplifier that provides a current-limited output. Designated as the COMP pin, the amplifier's output provides a convenient connection for applying compensation to ensure overall feedback-loop stability. In addition, the COMP pin allows attachment of shutdown and ...