AC-DC Conversion by High-frequency Chopper

Resonant DC Link in PWM AC Chopper

This paper proposes a resonant dc link in PWM ac chopper. This can solve the spike problems and also reduce the switching loss. The configuration and PWM pattern of the proposed technique are presented. The simulation results are used to confirm the theory. Keywords—PWM ac chopper and Resonant dc link.

Combined Bidirectional Buck-Boost DC-DC Chopper-Mode Inverters With High-Frequency Link

Multi-Stage DC-AC Converter Based on new DC-DC converter for energy conversion

This paper proposes a multi-stage power generation system suitable for renewable energy sources, which is composed of a DC-DC power converter and a three-phase inverter. The DC-DC power converter is a boost converter to convert the output voltage of the DC source into two voltage sources. The DC-DC converter has two switches operates like a continuous conduction mode. The input current of DC-DC...

A Mechanism of DC-AC Conversion in the Organic Thyristor

1 Department of Applied Physics, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan; E-Mail: [email protected] (T.S.) 2 The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa 277-8581, Japan; E-Mail: [email protected] (H.M.) 3 Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meg...

Pulse Width Modulated Igbt Ac Chopper

A new circuit is presented for three-phase voltage controller (AC chopper) constructed from IGBTs. Traditionally such an equipment contains thyristors as switching elements. All drawbacks of this solution come from its only possible control method: firing control. The new circuit allows Pulse Width Modulation (PWM) control, providing much better properties. A new and advantageous control method...