Stabilized power converter having quantized duty cycle

Details Stabilized power converter having quantized duty cycle Stabilized power converter having quantized duty cycle

H - Electricity

02

M

H02M 3/157 (2006.01) H02M 3/158 (2006.01) H02M 1/00 (2006.01)

Patent

CA 2162947

A multi-slice power converter (10) employs a digital circuit (22) to generate phase-delayed pulse width modulated (PWM) signals, which results in the duty cycle of the PWM signals having only a certain number of possible values. The quantization of the duty cycle is shown to result in two types of instabilities which are unique to power converters having a digital control loop, in addition to the conventional analog-type of instabilities. This invention provides novel methods and apparatus for stabilizing the digital control loop of the power converter through the use of a periodic dither signal having a frequency that is less than the PWM frequency and greater than a bandwidth frequency of the converter. The dither signal functions to effectively increase the number of possible duty cycles by a factor given by the ratio of the dither frequency to the bandwidth frequency.

Affiliated with

Also associated with

Rating

Stabilized power converter having quantized duty cycle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilized power converter having quantized duty cycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilized power converter having quantized duty cycle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1998636