Feb 25, 2020
05:58 AM
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Feb 25, 2020
05:58 AM
Hi,
could you please explain the advantage of Kelvin emitter of IGBTs?
Thank you in advance!
could you please explain the advantage of Kelvin emitter of IGBTs?
Thank you in advance!
Solved! Go to Solution.
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Mar 13, 2020
05:01 AM
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Mar 13, 2020
05:01 AM
Hello,
The Kelvin emitter pin connection eliminates the effect of parasitic inductance shared by the gate driver circuit and the main power circuit.
The negative impact of this common-emitter inductance is significantly increased at high switching frequency operation where mainly high di/dt’s are present, increasing the switching losses and generating risky gate voltage spikes that could cause spurious turn-on, and/or destroy the IGBT.
Details of the importance of the Kelvin emitter pin are discussed at length in this application note:
https://www.infineon.com/dgdl/Infineon-Application+Note+TRENCHSTOP%E2%84%A2+5+in+TO-247+4pin-AN-v01_...
Thank you
The Kelvin emitter pin connection eliminates the effect of parasitic inductance shared by the gate driver circuit and the main power circuit.
The negative impact of this common-emitter inductance is significantly increased at high switching frequency operation where mainly high di/dt’s are present, increasing the switching losses and generating risky gate voltage spikes that could cause spurious turn-on, and/or destroy the IGBT.
Details of the importance of the Kelvin emitter pin are discussed at length in this application note:
https://www.infineon.com/dgdl/Infineon-Application+Note+TRENCHSTOP%E2%84%A2+5+in+TO-247+4pin-AN-v01_...
Thank you
1 Reply
Mar 13, 2020
05:01 AM
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Mar 13, 2020
05:01 AM
Hello,
The Kelvin emitter pin connection eliminates the effect of parasitic inductance shared by the gate driver circuit and the main power circuit.
The negative impact of this common-emitter inductance is significantly increased at high switching frequency operation where mainly high di/dt’s are present, increasing the switching losses and generating risky gate voltage spikes that could cause spurious turn-on, and/or destroy the IGBT.
Details of the importance of the Kelvin emitter pin are discussed at length in this application note:
https://www.infineon.com/dgdl/Infineon-Application+Note+TRENCHSTOP%E2%84%A2+5+in+TO-247+4pin-AN-v01_...
Thank you
The Kelvin emitter pin connection eliminates the effect of parasitic inductance shared by the gate driver circuit and the main power circuit.
The negative impact of this common-emitter inductance is significantly increased at high switching frequency operation where mainly high di/dt’s are present, increasing the switching losses and generating risky gate voltage spikes that could cause spurious turn-on, and/or destroy the IGBT.
Details of the importance of the Kelvin emitter pin are discussed at length in this application note:
https://www.infineon.com/dgdl/Infineon-Application+Note+TRENCHSTOP%E2%84%A2+5+in+TO-247+4pin-AN-v01_...
Thank you