H - Electricity – 02 – P
Patent
H - Electricity
02
P
318/108
H02P 7/52 (1980.01)
Patent
CA 1186726
ABSTRACT OF THE DISCLOSURE The specification describes an inverter circuit for operating a speed-controllable asynchronous motor, wherein the voltage and frequency are substantially proportional until the nominal frequency has been reached at nominal voltage, comprising an inverter, a desired value emitter, a D.C. voltage supply with a voltage regulator which sets the voltage depending on the desired value, and a freqency regulator which causes the frequency to follow depending on the voltage.
378473
Beierholm Hans M.
Henriksen Niels J.
Danfoss A/s
Macrae & Co.
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