PWM converter apparatus

Details PWM converter apparatus PWM converter apparatus

1990-05-07

1991-07-23

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 37, 363 80, 363127, H02M 768

Patent

active

050348744

ABSTRACT:
A PWM converter apparatus having phase detection means including an error detection protection device for outputting an estimate value as a present phase signal when a phase signal in each computation cycle deviates for a predetermined value or more from the estimate value obtained according to the former phase signal, the frequency of a power voltage, and a computation cycle.

REFERENCES:
patent: 3551778 (1970-12-01), Ekstrom
patent: 4652770 (1987-03-01), Kumano
patent: 4749932 (1988-06-01), Yonemoto
patent: 4816985 (1989-03-01), Tanahashi
patent: 4847744 (1989-07-01), Araki

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