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.
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Inventors:
KRIS BRYAN (US)
Application Number:
PCT/US2012/055897
Publication Date:
July 04, 2013
Filing Date:
September 18, 2012
Export Citation:
Assignee:
MICROCHIP TECH INC (US)
KRIS BRYAN (US)
KRIS BRYAN (US)
International Classes:
G06F1/04; H03K7/08
Foreign References:
US5172115A | 1992-12-15 | |||
US20090002043A1 | 2009-01-01 | |||
US6658583B1 | 2003-12-02 |
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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