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This paper describes the analysis and design of a DC-DC converter topology which is operational at frequencies in the Very High Frequency (VHF) band ranging from 30 MHz-300 MHz. The presented topology, which consists of a class E inverter, class E rectifier, and self-oscillating gate driver, is inherently resonant, and switching losses are greatly reduced by ensuring Zero Voltage Switching (ZVS) of...
This paper is a continuation of previously published paper ldquodirect amplitude modulation (DIRAM)rdquo operating in DC to DC power conversion domain. The DIRAM topology is fully applicable in inverters arena as well, with numbers of distinguished advantages. DIRAM can serve as a foundation stone to a new, high efficiency, high power density generation of inverters.
High Power telecommunication power supply systems consist of a three-phase switch mode rectifier followed by a DC/DC converter to supply loads at 48 VDC. These rectifiers draw significant harmonic currents from the utility, resulting in poor input power factor with high total harmonic distortion (THD). In this paper, a DC power supply based on matrix converter with reduced number of switches is proposed...
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