Patent ID: 11916497
Assignee: HORSTMANN SYSTEMS CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A control circuit for controlling a single-phase AC motor, comprising:
a quadrature oscillator configured to output a first sinusoidal signal and a second sinusoidal signal, the first sinusoidal signal and the second sinusoidal signal being out of phase; and
first circuitry configured to convert the first sinusoidal signal to a first sine voltage for a main winding of the single-phase AC motor; and
second circuitry configured to convert the second sinusoidal signal to a second sine voltage for an auxiliary winding of the single-phase AC motor,
wherein the first circuitry comprises:
a first modulator configured to generate a first pulsing voltage based on the first sinusoidal signal; and
third circuitry configured to output the first sine voltage based on the first pulsing voltage,

wherein the second circuitry comprises:
a second modulator configured to generate a second pulsing voltage based on the second sinusoidal signal; and
fourth circuitry configured to output the second sine voltage based on the second pulsing voltage,

wherein the third circuitry comprises:
a first bridge configured to generate a third pulsing voltage using the first pulsing voltage as an input; and
a first filter configured to convert the third pulsing voltage to the first sine voltage, and

wherein the fourth circuitry comprises:
a second bridge configured to generate a fourth pulsing voltage using the second pulsing voltage as an input; and
a second filter configured to convert the fourth pulsing voltage to the second sine voltage.