What is VCE in IGBT?

The VCE represents a collector-emitter voltage drop in the ON state, and is used to calculate the power dissipation loss of the IGBT. The smaller the VCE value, the lower the power dissipation loss. Therefore, it is necessary to design the IGBT to have the smallest VCE value possible.

How do I protect IGBT?

How to protect IGBT from failures and breakdowns ?

1. Tips of soldering irons should be grounded.
2. Devices should never be inserted into or removed from circuits with power.
3. Gate Voltage Rating. Never exceed the gate-voltage rating of VGEM.
4. Gate Termination.
5. Gate Protection.

What is saturation in IGBT?

When an IGBT or MOSFET are fully “on” they are known to be saturated, when they exceed their maximum current ratings they are known to “over saturate” which will eventually cause failure of the device.

What is desaturation IGBT?

During desaturation, the IGBT current and power dissipation rise drastically and the device overheats, possibly to failure. To prevent such damage, desaturation fault detection turns off the IGBT in a controlled manner.

How does VCE protection circuit protect IGBTs?

My IGBTs are 1200V,100A. Vcesat turn off IGBT when Vce reaches to about 8V when current of IGBT rises,but accorcing to Ic-Vce curve of IGBTs at currents 2x to 5x of nominal current Vce become about 4V,so how protection circuit protect IGBT? It beed 8V for protection! Please clear this concept for me.

How to protect IGBT from short circuit protection?

I want to protect IGBT from short circuit protection using Vcesat ,I want to use HCPL-316J optocouplers. My IGBTs are 1200V,100A. Vcesat turn off IGBT when Vce reaches to about 8V when current of IGBT rises,but accorcing to Ic-Vce curve of IGBTs at currents 2x to 5x of nominal current Vce become about 4V,so how protection circuit protect IGBT?

Which is an example of IGBT overcurrent protection?

Examples of IGBT overcurrent protection techniques. Desaturation detection utilizes the IGBT itself as the current measurement component.

Which is the collecter emitter voltage when the IGBT is on?

The collecter-emitter voltage when the IGBT is on is known as the saturation voltage. This graph is the type of thing you want to be looking for in a datasheet as it will tell you the safe operating current with respect to the gate voltage, normally you will run gates at 15V which is normally the last or second to last plot.