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Patent Searching and Data


Title:
VARIABLE FREQUENCY RATIOMETRIC MULTIPHASE PULSE WIDTH MODULATION GENERATION
Document Type and Number:
WIPO Patent Application WO/2013/048820
Kind Code:
A3
Abstract:
Groups of phase shifted PWM signals are generated that maintain their duty-cycle and phase relationships as a function of the period of the PWM signal frequency. The multiphase PWM signals are generated in a ratio-metric fashion so as to greatly simplify and reduce the computational workload for a processor used in a PWM system. The groups of phase shifted PWM signals may also be synchronized with and automatically scaled to match external synchronization signals.

Inventors:
KRIS BRYAN (US)
Application Number:
PCT/US2012/055897
Publication Date:
July 04, 2013
Filing Date:
September 18, 2012
Export Citation:
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Assignee:
MICROCHIP TECH INC (US)
KRIS BRYAN (US)
International Classes:
G06F1/04; H03K7/08
Foreign References:
US5172115A1992-12-15
US20090002043A12009-01-01
US6658583B12003-12-02
Other References:
See also references of EP 2761756A2
Attorney, Agent or Firm:
SLAYDEN, II, Bruce, W. (401 Congress Ave. Suite 320, Austin TX, US)
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