Some scaling issues in the active voltage control of IGBT modules for high power applications

Palmer, P.R.; Githiari, A.N.; Leedham, R.J.

doi:10.1109/pesc.1997.616820

Cited by 12 publications

(2 citation statements)

References 7 publications

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“…The active gate drive circuit presented originated in [13] where the rate of the IGBT collector emitter voltage at turn-off is able to track a specified reference voltage signal. This concept is further enhanced by allowing the turn-off and turn-on transition to vary at different rates specified by the gate drive controller circuit [14] as shown in …”

Section: Discussionmentioning

confidence: 99%

Adaptive voltage slew control used to limit the magnitude of broadband conducted noise emissions for buck derived dc-dc converters

Lim

Muir

Finney

et al. 2012

2012 Asia-Pacific Symposium on Electromagnetic Compatibility

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This paper demonstrates the harmonic component limiting effects achieved by varying transformer-based dc-de converter switching device voltage slew rate dVldt. A solution is realised which is practically feasible to lower the conducted harmonic component emission levels to below -lOOdBm by reducing the voltage slew rate of a 3W dc-de converter. Voltage slew rate reduction lowers the harmonic component magnitudes of the trapezoidal waveform at the output of the transformer secondary. A second order LC output filter further reduces harmonic components. The proposed experimental design provides high and low bias voltages to a series of CCD optical arrays for the ESA Gaia satellite. Alternative active gate drive design is also presented to allow adaptive variation of the dVldt, focusing on higher power level applications.I.

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Section: Discussionmentioning

confidence: 99%

Adaptive voltage slew control used to limit the magnitude of broadband conducted noise emissions for buck derived dc-dc converters

Lim

Muir

Finney

et al. 2012

2012 Asia-Pacific Symposium on Electromagnetic Compatibility

View full text Add to dashboard Cite

show abstract

“…To overcome these differences, the reference voltage has a two-step turn-off edge; a step and a ramp. During the step, the gate drive overcomes the non-linearities associated with the IGBT's Miller capacitance and the gate delays [9]. At the end of this step, all the IGBTs are ready to switch off with a predefined dv dt ; the ramp.…”

Section: Introductionmentioning

confidence: 99%

Parameters influencing the performance of an IGBT gate drive

Abu-Khaizaran

Palmer

Wang

2008

2008 IEEE Power Electronics Specialists Conference

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This paper presents an improvement of an IGBT gate drive implementing Active Voltage Control (AVC), and investigates the impact of various parameters affecting its performance. The effects of the bandwidths of various elements and the gains of AVC are shown in simulation and experimentally. Also, the paper proposes connecting a small Active Snubber between the IGBT collector and its gate integrated within the AVC. The effect of this snubber on enhancing the stability of the gate drive is demonstrated. It will be shown that using a wide bandwidth operational amplifier and integrating the Active Snubber within the gate drive reduces the minimum gate resistor required to achieve stability of the controller. Consequently, the response time of the IGBT to control signals is significantly reduced, the switching losses then can be minimised and, hence, the performance of gate drive as whole is improved. This reflects positively on turn-off and turn-on transitions achieving voltage sharing between the IGBTs connected in series to construct a higher voltage switch, making series IGBTs a feasible practice.

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Closed-Loop Gate Drive for High Power IGBTs

Chen

Peng

2009

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition

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Some scaling issues in the active voltage control of IGBT modules for high power applications

Cited by 12 publications

References 7 publications

Adaptive voltage slew control used to limit the magnitude of broadband conducted noise emissions for buck derived dc-dc converters

Adaptive voltage slew control used to limit the magnitude of broadband conducted noise emissions for buck derived dc-dc converters

Parameters influencing the performance of an IGBT gate drive

Closed-Loop Gate Drive for High Power IGBTs

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