Patent ID: 11864287
Assignee: WANGS ALLIANCE CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. Apparatus comprising:
a voltage conversion circuit configured to generate a digital output based on a dimming level configured to be set on a 0-10 V dimmer that outputs a DC voltage control signal;
a switch that controls, based on the digital output, AC power supplied to a load circuit that is configured to receive AC power;
a microcontroller (“MCU”) in communication with the voltage conversion circuit;
wherein:
the MCU includes:
a first input terminal configured to receive the digital output as a first input; and
an output terminal configured to output a first pulse-width modulated (“PWM”) signal, based on the digital output, to the switch; and

the first PWM signal has a duty cycle that corresponds to the dimming level; and

a voltage detection circuit that is configured to:
output a second PWM signal based on a voltage of the AC power that is input to the voltage detection circuit; and
transmit the second PWM signal to the MCU;
wherein:
the MCU further includes a second input terminal configured to receive, as a second input, the second PWM signal from the voltage detection circuit; and
the first PWM signal is based on the first input and the second input.