Title :
A New Non-isolated ZVZCS Voltage Doubler Rectified Boost-integrated Half-Bridge(VDRBIHB) DC/DC Converter for Digital Car Audio Amplifier Power Supply
Author :
Lee, Byoung-Hee ; Kim, Chong-Eun ; Moon, Gun-Woo
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
A new non-isolated ZVZCS voltage doubler rectified boost-integrated half-bridge(VDRBIHB) DC/DC converter for a digital car audio amplifier power supply is proposed in this paper. By replacing a transformer with two inductors, it shows the smaller size of magnetic components than that of the conventional VDRBIHB converter. Moreover, the improved efficiency of the proposed converter can be obtained due to the reduced conduction and core losses of the magnetic components. As a result, the proposed converter achieves 2% higher efficiency, than the conventional, over the nearly entire load ranges and the magnetic component size and cost are reduced. To confirm the validity and features of the proposed converter, experimental results of a 200 W industrial sample will be presented.
Keywords :
DC-DC power convertors; audio-frequency amplifiers; bridge circuits; power inductors; switching convertors; zero current switching; zero voltage switching; VDRBIHB DC-DC converter; digital car audio amplifier power supply; inductors; magnetic components; nonisolated ZVZCS voltage doubler; rectified boost-integrated half-bridge; Core loss; DC-DC power converters; High power amplifiers; Inductance; Inductors; Magnetic resonance; Power amplifiers; Power supplies; Switching converters; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342009
