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This paper proposes a novel improved tweleve-phase with dummy load dimming control for backlight inverter. We adopt six-phase of tweleve-phase PWM dimming to control the brightness of twelve lamps. Each of odd phase can control two lamps. The other six even phases are connected to dummy load without lamp current. Circuit architecture is full bridge phase-shift circuit which can improve the total efficiency...
This paper proposes a novel tweleve-phase PWM dimming control for backlight inverter. We adopt tweleve-phase or six-phase PWM dimming to control the brightness of twelve lamps. Each phase can control one or two lamps. Circuit architecture is full bridge phase-shift circuit which can improve the total efficiency of the driving circuit. From the experimental results for four-phase and six-phase PWM...
This paper proposes a novel control scheme which possesses four-phase PWM dimming control for backlight inverter with triple output lamp currents for each phase. We adopt four-phase PWM dimming control circuit to control the brightness of twelve lamps. Each phase driving circuit can control three lamp currents. Circuit architecture is full bridge phase-shift circuit which can improve the total efficiency...
This paper proposes a novel dimming control scheme which possesses six-phase PWM dimming control for backlight inverter. We adopt six-phase PWM dimming control circuit to control the brightness of twelve lamps. Each phase can control two lamps. Circuit architecture is full bridge circuit which can improve the total efficiency of the driving circuit. Because six-phase PWM dimming inverters consume...
This paper proposes two novel dimming control schemes which possess four-phase or six-phase PWM dimming control for backlight inverter. We adopt four-phase or six-phase PWM dimming control to control the brightness of twelve lamps. Each phase can control four or two lamps. Circuit architecture is full bridge phase-shift circuit which can improve the total efficiency of the driving circuit. Because...
This paper proposes a novel dimming control scheme which possesses six-phase PWM dimming control for backlight inverter. We adopt six-phase PWM dimming control circuit to control the brightness of twelve lamps. Each phase driving circuit can control two lamps. Circuit architecture is full bridge circuit which can improve the total efficiency of driving circuit. Due to single-phase PWM dimming consumes...
This paper proposes a novel control scheme which possesses four-phase PWM dimming control loop for backlight inverter. We adopt four-phase PWM dimming control circuit to control the brightness of twelve lamps. Each phase can control four or two lamps. Circuit architecture is full bridge phase-shift circuit which can improve the total efficiency of the driving circuit. From the experimental results,...
This paper proposes novel high input power factor single-stage single-phase AC/AC converter to give high input power factor and low current distortion on the rectifier side and provide clean and stable AC voltage on the inverter side. The proposed AC/AC converter can not only provide regulation of the output AC voltage magnitude but provide variable output AC voltage frequency. A significant reduction...
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