Control unit for static converter

Details Control unit for static converter Control unit for static converter

H - Electricity

02

M

321/48

H02M 1/084 (2006.01) H02M 7/48 (2006.01)

Patent

CA 1142586

ABSTRACT A digital control unit for a static converter contains a binary- coded counter which counts the pulses of an oscillator. The counter outputs are connected to the address inputs of a function memory in which sawtooth or ramp functions are stored. The numbers read out of the function memory are compared in a comparator, with a number determining the drive of the static converter. The result of the comparison and pulses on selected outputs of the counter are linked, in a logic circuit, to form firing pulses for the static converter. The invention is suitable for control units for static converters, in particular for AC control elements and inverters. All expense of adjusting, and all compensation of drift errors is obviated.

336474

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