Pulse-width modulation scheme for managing thermal loading of an inverter during stall

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United States of America Patent

PATENT NO 11482923
SERIAL NO

17389867

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Abstract

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A system includes a controller for a DC to AC inverter including a processor configured to execute instructions to perform operations including: generating a first pulse for a first phase of a center-aligned PWM signal to alternately activate a first phase switch of a first switch group of the inverter for a first duration and a first phase switch of a second switch group of the inverter for a second duration within a period of the PWM signal; and generating a second pulse for a second phase of the PWM signal to alternately activate a second phase switch of the first switch group of the inverter for a third duration and a second phase switch of the second switch group of the inverter for a fourth duration within the period of the PWM signal, wherein the second duration is different from the third duration during a stall condition.

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Patent Owner(s)

  • DELPHI TECHNOLOGIES IP LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meyer,, III John William McCordsville, US 2 10

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