Power converter with duty ratio quantization

Details Power converter with duty ratio quantization Power converter with duty ratio quantization

H - Electricity

02

M

321/30

H02M 1/14 (2006.01) H02M 3/157 (2006.01) H02M 7/00 (2006.01)

Patent

CA 1313689

- 1- ABSTRACT OF THE DISCLOSURE A discrete proportional-integral-differential controller, driven from a sampling digital error amplifier, is used to generate a quantized duty ratio control signal to provide dynamic output voltage regulation for switching dc- to-dc power converters. The sampling frequency of the digital PID controller is equal to the switching frequency of the power converter, so the digital controller may be used at different switching frequencies without recompensation. Digital techniques are also used to provide output current limiting, soft-start, undervoltage lockout, overvoltage shutdown, and power master-clear indications.

616033

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