Questions tagged [igbt]

Insulated-gate bipolar transistor, voltage-driven power transistor with fast switching times

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9
votes
4answers
1k views

IGBT ratings, I don't understand how this is possible

I found the IXGX400N30A3 at Digikey. The datasheet says the device is rated for 400A @ 25C, 1200A @ 25C for 1ms, with a voltage rating of 300V and PD of 1000W. Really? This TO-264 package can ...
0
votes
3answers
410 views

Resistor values for a Voltage- Controlled Current Source Circuit

simulate this circuit – Schematic created using CircuitLab Hi Folks, During my bachelor thesis, I am learning IGBT gate driver cricuits. I am struggling with understanding the following ...
14
votes
2answers
3k views

IGBT vs. Power MOSFET for switching applications. Where to draw the line?

For lower breakdown voltages, a power MOSFET is clearly the device to go for, in view of its higher efficiency, higher commutation speed and lower price. Where should the line be drawn, upwards of ...
9
votes
6answers
20k views

What caused this IGBT failure?

I connected the circuit below, a transistorized ignition circuit, and it worked for a couple minutes, then it stopped working (engine quit, wouldn't restart). When it stopped working, I couldn't feel ...
4
votes
3answers
9k views

IGBT as a switch

I've searched over the net on this issue but found no answers. In your own experience or thought, is it possible to use igbt as a switch? If yes, please provide schematic as an example. EDIT: This ...
0
votes
2answers
874 views

Why this pair of IGBT's died silently?

Before some days I have taken a look at circuit which controls AC current's frequency. That circuit was a VFD which looks like: simulate this circuit – Schematic created using CircuitLab But ...
1
vote
2answers
728 views

What transistor or combination of transistors should I use to make a fully controllable AC switch?

Suppose I want to switch AC. I want to control (allow, prevent, or interrupt) current flow in either direction. SCRs won't do because I want to interrupt current, and I don't recall seeing many IGBTs ...