Chopper control apparatus

Details Chopper control apparatus Chopper control apparatus

1993-12-14

1996-04-16

Wong, Peter S.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 78, H02M 302

Patent

active

055089070

ABSTRACT:
A chopper control apparatus including a measurement device which measures the mean value of an output magnitude of the chopper, and a regulator which controls the supply of control square-waves for the chopper on the basis of measurement results supplied by the measurement device and a reference magnitude, so as to make the mean value equal to the reference magnitude. The measurement device includes a device which generates a sampling signal having pulses whose positions, relative to the control square-waves, are determined so that the pulses coincide with the output magnitude passing through its mean value. The measurement device further includes a sampling device which samples the output magnitude based on the sampling signal.

REFERENCES:
patent: 3958173 (1976-05-01), Christianson et al.
patent: 4246522 (1981-01-01), Bourke et al.
patent: 4580089 (1986-04-01), Grunsch et al.
patent: 4835454 (1989-05-01), White

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