1. A ZVS PWM Inverter With Active Voltage Clamping Using the Reverse Recovery Energy of the Diodes.
- Author
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Mezaroba, Marcello, Martins, Denizar Cruz, and Barbi, Ivo
- Subjects
- *
MATHEMATICS , *MATHEMATICAL analysis , *PROTOTYPES , *ELECTRIC circuits , *ELECTRONIC circuits , *ELECTRONICS - Abstract
This paper presents a zero-voltage-switching (ZVS) pulsewidth modulated inverter with active voltage clamping using only a single auxiliary switch. The structure is particularly simple and robust. It is very attractive for single-phase high-power applications. Switching losses are reduced due to implementation of the simple active snubber circuit that provides ZVS conditions for all switches, including the auxiliary one. Its main features are: simple modulation strategy, robustness, low weight and volume, low harmonic distortion of the output current and high efficiency. The principle of operation for steady-state conditions, mathematical analysis and experimental results from a laboratory prototype are presented. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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