Patent ID: 11664741

Abstract:
A power-control device comprises an energy-import portion and an energy-export portion. The power-control device may additionally include a general processing and power supply circuit providing linear control of the power-control device's production of power to the load. The energy-import portion is coupled between a VLINE terminal and a load terminal, and is capable of importing energy to the load terminal during a first portion and a third portion of an alternating voltage VAC waveform. The energy-export portion is coupled between the load terminal and a NEU terminal, and is capable of exporting energy from the load terminal during a second portion and a fourth portion of the alternating voltage VAC waveform. The first, second, third and fourth portions of the alternating voltage VAC waveform are equal to a period of the alternating voltage VAC waveform and respectively are consecutive during the period of the alternating voltage VAC waveform. The power-control device provides variable power control to the load terminal in response to a variable on/off time of a PWM control signal.