DIAGRAM OF MULTI-PHASE ASYNCHRONOUS MOTOR CONNECTION TO DC POWER SUPPLY Russian patent published in 2010 - IPC H02P23/10 H02P1/42 

FIELD: electricity.

SUBSTANCE: diagram of multi-phase asynchronous motor connection to d.c. power supply unit includes parallel resonance LC-circuits as per number of motor windings. Each circuit is formed by capacitor and primary winding of double-wound choke with the secondary winding being inductively coupled with the primary one. Motor winding is connected with the secondary winding. Primary windings of circuit chokes are senquentially coupled with d.c.power supply through controllable switch breaking the circuit in the given intervals. Each resonance circuit having connected motor winding is adjusted so that to have own resonance frequency. The value of resonance frequency from circuit to circuit changes sequentially.

EFFECT: simplified diagram of asynchronous motor connection to power supply unit.

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