All Questions
Tagged with semiconductors igbt
20
questions
4
votes
2
answers
167
views
What does the cross point of V-I curves mean?
Here you see a V-I graph including many curves achieved under different junction temperatures of an IGBT. As it can be seen there is a cross point where all curves intersect each other. Does it make ...
- 151
3
votes
1
answer
7k
views
Difference between the words 'die' and 'chip' [closed]
In some articles speaking about the IGBT power modules, we can see that the word 'die' has been used for calling the semiconductor component of IGBT device. However, other articles calls it 'chip'. ...
- 151
2
votes
1
answer
851
views
Difference between Vth and Vge?
What is the difference between the threshold voltage (Vth) and gate-emitter voltage (Vge) for IGBT devices?
How can I calculate Vth of an IGBT chip?
- 21
1
vote
2
answers
400
views
RC snubber network not protecting IGBT
I'm working on an electromagnetic accelerator project but I'm having trouble protecting my IGBTs that switch current through the coils. Here's the schematic:
C1 gets charged to around 250 V (In my ...
- 445
1
vote
1
answer
1k
views
Electrical Conductivity of SAC solder
Can anybody help me find the electrical conductivity of SAC 305 (96.5Sn3Ag0.5Cu) solder? It is the most common solder in semiconductor IGBT/MOSFET power switches.
Many thanks and best regards,
- 49
1
vote
1
answer
88
views
Collector current in datasheet Graphs
Here is an example of output characteristics fot IGBT devices, i.e., the "collector current (Ic)-to-collector emitter voltage (Vce)" graph. Can somebody help me find what Ic represents here? ...
- 151
1
vote
1
answer
538
views
Ic and Vce equations of IGBT
I know in IGBTs while operating, parameters Ic (collector current) and Vce (collector-emitter voltage) are Tj (junction temperature) and Vge (gate-emitter voltage) dependent. Is there anything else ...
- 49
1
vote
1
answer
252
views
Calculation of Vce from Ic-Vge Characteristic
We have found the Ic-Vge (collector current vs gate-emitter voltage) characteristic of an IGBT device as shown below at a high Vce (collector-emitter voltage) value (here 20V) from the datasheet (...
- 49
1
vote
1
answer
169
views
Temperature dependance of IGBT max collector current
I have an IGBT (datasheet), that I am using as a switch for a coilgun. How would I calculate the maximum pulse collector current in function of the ambiant temperature and time?
Also, if we're ...
- 111
1
vote
0
answers
91
views
Coupling heatsink RC network to MOSFET's Cauer circuit
I am trying to understand simple RC thermal simulation to analyse the temperature rise in Rohm a 1200 V N-channel SiC MOSFET SCT3040KR.
RC Cauer parameters are as depicted in the LTspice circuit ...
- 21
1
vote
0
answers
73
views
IGBT modelling from datasheet
how to model igbt from the APT150GN120J datasheet.
...
1
vote
0
answers
151
views
Calculation of Rated Power for IGBT Module
For an IGBT module with the following characteristics, how can we calculate the rated power? I mean how much is the rated power for this module?
- 151
1
vote
0
answers
232
views
Unknown logo on FGS25N120ANTD IGBTs. Which semiconductor manufacturer is this?
I bought 5 FGS25N120ANTD IGBTs from my local vendor a while back.
I was unable to identify the manufacturer, based on the logo.
Can somebody help me out?
- 113
1
vote
0
answers
173
views
IGBT chip metalization
Consider an IGBT chip within a power module.
The top surface of the chip is often metalized by aluminum (with approximately 5 microns thickness) to bond some aluminum wires into the chip; I am hazy ...
- 151
1
vote
0
answers
99
views
Failures on underside layers of a chip in IGBT power modules
Does somebody know how I can detect a layer of IGBT modules in which a thermal failure, e.g., voids, cracks, delaminations of solder joints, has taken place?
We know there is fatigue in both solder ...
- 49