High Power Soft—switching IGBT DC—DC Converter

High Power Soft – switching IGBT DC – DC Converter

A soft-switching topology for high power buck converter is proposed. Zero-current turn-on and zero-voltage turn-off is achieved without auxiliary switches. All active switches in the converter transmit power to the load equally. Converter control is simple despite four active switches. Converter operation is described and DC analysis is carried out. All operation modes are identified. The condi...

Step up dcdc converter pdf

High Frequency Behavior of High Power IGBT Modules

Sharp voltage gradients act as a stimulus for high power IGBT modules, which can exhibit a potentially instable high frequency behaviour. In effect, they can act as a radio frequency (RF) amplifier and under certain operating conditions the interaction between the device and the control or the external circuit can cause self-sustaining oscillations or the enhancement of the unevenness in curren...

Pressure contact IGBT , the ideal switch for high power applications

Abstract Models and experimental data are used to predict the performance of large area pressure contact IGBTs, offering ratings equivalent to the largest power conventional technology devices. Differences in the electromechanical characteristics of pressure contact devices, when compared to substrate mounted devices, are reviewed and how these influence the potential performance of devices wit...

Current Sharing and Redistribution in High Power IGBT Modules

The Insulated Gate Bipolar Transistor (IGBT) is now the favoured power semiconductor device for most medium power applications. One major difficulty with current IGBT manufacturing technologies is the inability to produce chips rated at more than 100 amps both reliably and cost-effectively. To achieve higher current ratings, a number of chips are connected in parallel to form a module; up to 32...