Questions tagged [igbt]
Insulated-gate bipolar transistor, voltage-driven power transistor with fast switching times
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IGBTs fail after high current, high voltage switch, despite being lower than absolute maximums mentioned in datasheet
I'm using FGH60N60 IGBT as a switch. The circuit is basically a capacitor-discharging circuit. I have a 10 mF capacitor charged to 310 volts and connected to 2 Ω of load via this IGBT (I connect 4 ...
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Three-phase IGBT inverter - Switching Loss Model
I aim to model the switching losses in a three-phase IGBT inverter controlled using Space Vector Modulation (SVM). I intend to use the approximated formula found in this paper, equal to:
$$P_{sw}={1\...
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Understand about IGBT and MOSFET
I'm studying about IGBT and MOSFET devices but information on the internet is difficult for me to understand, especially for their important properties.
Please help me to summarise this content or ...
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How do I test a MOSFET/IGBT for its maximum current and maximum voltage mentioned in the datasheet practically?
I am using an IGBT from Infineon (IGW25N120H3FKSA1). The datasheet mentions that the absolute maximum ratings for the IGBT are Vce(max) = 1200 V and Ic(max) = 25-50 A (depending on temperature). How ...
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Reconciling High Drain Voltage with Typical V_BE Drop in nMOS+PNP IGBT Configuration
I'm examining two design methodologies for IGBTs (Insulated Gate Bipolar Transistors) and have encountered a puzzling issue regarding the drain voltage in the nMOS part of an nMOS+PNP IGBT ...
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IGBT breakdown with induced transient voltage
I have a circuit with four IGBTs model IXYT25N250CHV up to 2.5 kV for a maximum working voltage of 1.5 kV
Each IGBT is used to charge a capacitor from a photovoltaic (PV) system at different voltage ...
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Induction Cooking Power Stage and EMI Filter Schematic
Recently I am planning to build an induction cooktop using half-bridge resonant topology. For a start, I took a look into ST evaluation board for induction cooking and wondering some part. Here is the ...
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Proper IGBT driver circuit for power inverter
I've examined IGBT driver in inverter in power generator (same model as presented here https://www.youtube.com/watch?v=3owRSqmz2JQ). Inverter topology is H bridge with two chokes in series with 230V ...
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Why gate drivers have series resistors on gates?
Although gate drivers are often used to interface low-voltage logic with high gate thresholds, it is my understanding that their primary function is to ensure fast gate switching by supplying high ...
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Difference between IGBT and FET+BJT
What are the practical differences between a true IGBT and a combination of FET and BJT, apart from a more efficient production and packaging? Can I obtain a device of comparable qualities to IGBT if ...
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Is it possible to make a halfbridge coilgun with high side IGBT and low side SCRs?
In a rather simple coilgun, the problem of freewheeling current from the coil is solved with a diode in parallel with the coil.
The energy of the reverse current is wasted this way and even slows the ...
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IGBT pulse max current
If in datasheet it reads that an IGBT can handle a 1200A current pulse for 1ms, and can operate at 500A max at 25C and 320 at 90C, how would I calculate what kind of pulse can it handle for 2 or 3 ms? ...
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Could an IGBT gate driver be used to drive a SiC MOSFET?
Can we use a single channel HV IGBT gate driver with galvanic isolation which is previously mounted to derive a 1200V IGBT for 800V inverter application? Can the same gate driver drive a 1200V SiC ...
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How to switch a 200 Vpp AC signal @ 2000 Hz in under 1 millisecond?
I want to switch a ~120 V AC signal with a frequency of up to 2000 Hz.
For my application (driving electrolumnescent wire) it is important that the switching duration is not higher than about one ...
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Battery Charger - Design of Circuit
Im Designing a Lead-Acid Battery charger, dont't needed that this charger it's the most sophisticated one.
As you can see in the attached image, It only consist of a power transformer, a ...
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