| 摘要 |
FIELD: electric engineering. ^ SUBSTANCE: device contains pulse-duration modulator, transformer, rectifier, filter and device for comparing to input signal, in parallel to phase winding of engine, primary winding of transformer is connected, one of output windings of which through rectifier and filter is connected to emitter circuit of transistor, and another one, through rectifier - to base of this transistor. Collector of transistor through filter is connected to one of inputs of comparison device, output of which is connected to input of pulse-duration modulator. ^ EFFECT: decreased power consumption, improved control characteristics. ^ 4 dwg |
