Patent ID: 11881800
Assignee: KITO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 6:
7. The electric motor-driven hoisting-lowering device control apparatus of claim 1, which is provided with a control power supply circuit including a single-phase voltage doubler circuit supplied as an input with an interphase voltage between two phases of the three-phase alternating-current power supply connected to the supply terminals or a single-phase voltage of the single-phase alternating-current power supply connected to the single-phase alternating-current power supply terminals, the single-phase voltage doubler circuit being configured such that when the single-phase voltage is input thereto, the single-phase voltage doubler circuit doubles the input voltage, thereby making the input voltage equal to the interphase voltage between the two phases of the three-phase alternating-current power supply, and thus making a control circuit block including the microcomputer and the control power supply circuit compatible with three-phase and single-phase applications.