Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Output Voltage Harmonics Analysis of NPC Type Three-level Inverter
Authors Kyoung-Min Kwon ; Jaeho Choi ; Gyo-Bum Chung
Page pp.472-480
ISSN 1229-2214
Keywords SVPWM; NPC type 3-level inverter; Double fourier series
Abstract This paper proposes a new multi-output LLC resonant converter by using single control IC, which has the tight-regulated dual output voltage without additional power devices and controller. The proposed converter has master and slave outputs, of which regulations are achieved by the PWM(pulse width modulation) and PFM(pulse frequency modulation), respectively. Different from the conventional dual-output LLC resonant converter, the proposed converter has no additional post-regulators like a boost converter. Therefore, it features a low cost, small size, and high efficiency. To confirm the validity and prove the superiority of proposed converter, simulated and experimental results on a 50” FHD PDP power set prototype are presented.