Current detecting method

Details Current detecting method Current detecting method

1992-07-23

1994-08-23

Voeltz, Emanuel T.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 41, 363132, 318811, H02M 7537

Patent

active

053412869

ABSTRACT:
A current detecting method in a case of effecting the digital current control of a motor by a PWM switching system, wherein the current feedback control time and the PWM period are synchronized, and the current for each of the current taking in PWM periods at a time established with respect to the reference signal for determining the PWM period is detected, so that the influence of the pulsation of the current by the PWM switching system may be reduced, and the performance improvement in the digital current feedback control may be improved.

REFERENCES:
patent: 3569805 (1971-03-01), Hammond
patent: 4377779 (1983-03-01), Plunkett
patent: 4748550 (1988-05-01), Okado
patent: 4772996 (1988-09-01), Hanei et al.
patent: 5079494 (1992-01-01), Reichard

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