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Questions tagged [igbt]

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

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1 answer
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IGBT with double emitter

I have this circuit in the photo that has two transistors that appear to be IGBT, but they have two complementary emitters, and apparently the floating collector. What component is this, I tried to ...
Delfino's user avatar
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6 votes
3 answers
730 views

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 ...
pouya nosratkhah's user avatar
0 votes
1 answer
61 views

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\...
Simone's user avatar
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-1 votes
1 answer
71 views

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 ...
Duyen Nguyen's user avatar
0 votes
3 answers
51 views

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 ...
Sudhanva Gokhale's user avatar
1 vote
1 answer
53 views

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 ...
Qiu Junpeng's user avatar
0 votes
0 answers
28 views

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 ...
solartec's user avatar
1 vote
0 answers
70 views

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 ...
HiPeng's user avatar
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0 votes
0 answers
128 views

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 ...
Andrew123's user avatar
  • 101
6 votes
4 answers
733 views

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 ...
Maple's user avatar
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2 votes
1 answer
117 views

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 ...
Борат Сагдиев's user avatar
0 votes
0 answers
159 views

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 ...
kall gakr's user avatar
0 votes
1 answer
91 views

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? ...
Nyxeria's user avatar
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0 answers
50 views

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 ...
Alison's user avatar
  • 347
0 votes
1 answer
94 views

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 ...
Thomas Hirsch's user avatar
0 votes
0 answers
77 views

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 ...
samuel mattio's user avatar
1 vote
1 answer
383 views

Can I control IGBT linearly with gate voltage?

I want to make a dummy load using IGBT. Is it possible to control the Ice (collector to emitter current) using the gate voltage? It would be really great if it is possible to explain the answer. The ...
Nithin's user avatar
  • 142
1 vote
0 answers
60 views

THT power transistor clamp mounting

I have a question regarding mounting THT power transistors (TO220, TO247...). I am building a output full bridge for a welder and I thought about not using PCB at all for the power terminals (D,S). It'...
tomstr21's user avatar
0 votes
2 answers
91 views

How do you size a resistor when the current and voltage flowing through it are impulsive?

Given a 33 Ω resistor, I need to size the power it can handle. The resistor is in series between a pin where a SPWM voltage is applied and the gate of an IGBT. In the following photo: blue is the ...
matteo morawski's user avatar
0 votes
0 answers
59 views

Half-Bridge inverter with IR2110, high side control signal diverges

I am designing a single-phase half-bridge inverter with SPWM modulation on LTSpice, the SPWM control signal is 10 kHz and the reference sine wave is 50 Hz. Initially the simulation seems to work, but ...
matteo morawski's user avatar
1 vote
3 answers
219 views

Why does the boost converter I made not produce an output voltage that matches the simulation I did?

First, this boost converter uses open-loop control. Second, the gate driver for the MOSFET IRF540, TLP250 IGBT driver as a high side MOSFET/IGBT driver is isolated. Third, the specifications of the ...
Handpras's user avatar
2 votes
1 answer
104 views

Looking for help identifying IGBT [closed]

This was in my DC stick welder. There are two but they're both blown up. This one has some readable letters on it still. I can find many similar ones but none match the bottom number. Any help is ...
Federico's user avatar
0 votes
0 answers
71 views

About Intelligent Power Modules for H-Bridge Configuration

For some days I have been searching for some kind of compact, easy to use and well powered modules that can be drive BDC motor using H-bridge configuration which gate trigger signal from MCU will be ...
qwertyqwq's user avatar
2 votes
1 answer
128 views

IGBT driver circuit protection confusion

I was reading a paper regarding the IGBT driver circuit based on M57962AL IC. I haven't found better information regarding the use of this IC in the datasheet therefore I had to read this. I am ...
kam1212's user avatar
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1 vote
0 answers
89 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 ...
MerOz's user avatar
  • 21
4 votes
1 answer
206 views

What kind of component this is (ST e3 ZOM Y734)?

please help to identify following electronic component from the image: It is clearly seen all symbols: ST e3 ZOM Y734 So it's definitely "STMicroelectronics&...
lol lol's user avatar
  • 145
1 vote
0 answers
64 views

RC Snubber Design Hint for 3 phase AC-AC PWM Chopper

Im trying to design a 3 phase Ac-Ac Pwm Chopper, I'm having difficulty designing the snubber network for the mentioned topology. Now I tried testing this circuit on bench , with my IGBT snubber values ...
Owais Ahmed's user avatar
0 votes
1 answer
72 views

Are the full bridge rectifier on a IGBT pack switching, fast or Schottky diodes? [closed]

In a skiip24nab126 IGBT pack for motor VVF drives: are the 3 phase full bridge rectifier diodes fast Schottky or switching or just normal / common diodes like 1N4007? Does the rectifier need to switch ...
DiegoJR's user avatar
0 votes
2 answers
542 views

IGBT H-Bridge Inverter

I am busy trying to repair a IGBT H-Bridge inverter that forms part of an AC spot welder. The problem I am having is that it works perfectly with a resistive load, but when I connect the step down ...
Marius Botha's user avatar
1 vote
0 answers
75 views

What is IC marked `40D12BI`?

What is the IC in the picture?
HNLinh's user avatar
  • 173
0 votes
0 answers
65 views

How do I make the circuit to sense the collector current for the FAN1100-F085?

I am trying to design an ignition coil driver using the FAN1100-F085 IC and a ISL9V3040x3ST−F085C IGBT. I am having trouble understanding the datasheet when it comes to the current sensing. It says to ...
Struner's user avatar
1 vote
0 answers
86 views

Gate resistor of an IGBT

I have trouble choosing an IGBT gate driver for PMSM motor control application. We are planning to use a custom inverter with a custom PCB that has the FS150R12N2T7_B15 module. We do not know the ...
Αλεξανδρος Πικραμενος's user avatar
0 votes
1 answer
103 views

What is the effect of the dc link capacitor "rated ripple current" on the drain current of switching elements?

While using a capacitor with 2.3A rated ripple current as a dc link capacitor in the circuit (as shown in the picture below "Cd") I used, I replaced it with one with 2.8A rated ripple ...
Multicharger's user avatar
2 votes
2 answers
164 views

Confusion about IGBT safe operating area

I have a pair of IXXH110N65C4 IGBTs in a stacked configuration: It appears from the datasheet that the transistors can switch a current of 600A on and off, with a pulse length of up to 1ms (at 25c ...
Drew's user avatar
  • 7,119
0 votes
1 answer
156 views

Induction cooktop tripping breaker (the IGBT was just repaced) [closed]

I have replaced the burned IGBT + added a new thermal paste, and it worked fine for about 10 minutes on the lower power setting, but when I turned it up to max it failed after a few seconds. I haven't ...
Tomáš Pilný's user avatar
1 vote
1 answer
98 views

Need help driving my IGBT (Toshiba MG300Q1US)

I have the IGBT above with no driver because I thought I could control with arduino, relay, and separate power supply. I bought this device from eBay and it doesn’t turn off so Im not sure if it’s ...
Chauncy's user avatar
  • 13
0 votes
1 answer
2k views

SCR based rectifier vs IGBT based rectifier

I am wondering what is the difference in performance of rectifiers when used with SCR and IGBT. I searched on internet but all i can find is that IGBT is voltage triggered and SCR is current pulse ...
Pankit Shah's user avatar
2 votes
1 answer
143 views

Residue voltage due to gate driver leakage current

I want to reduce the leakage current of a gate driver driving an IGBT as I have some residual voltage on the high voltage line LV for communication is on. The residual voltage on the high voltage line ...
Alison's user avatar
  • 347
2 votes
1 answer
102 views

How to design an accurate high tripping voltage capacitor discharge circuit

We have a system which discharges a capacitor (20 uF) charged to approx. 3kV DC using a spark gap. The principle is simple, when the voltage exceeds a certain value, it jumps the gap (around 0.6 mm) ...
ACBlue's user avatar
  • 75
0 votes
1 answer
44 views

IPM IGBT Module pins

This is a internal circuit of PSS30S71F6and datasheet is attached. I would like to ask you what are Vufs (1) and Vufb (3) pins for? This pins are keep burning for a reason but i haven't figured it out....
wolyure's user avatar
  • 157
1 vote
1 answer
144 views

Review of isolated dual power supply circuit for IGBT gate driver

I need to build an isolated power supply for an IGBT gate driver. +15V, -8V. What I'm trying: I'm using a 1:1.3 transformer and driving it with a 15V square wave. The output voltage is split 1/3, 2/3, ...
Thomas C.'s user avatar
  • 153
0 votes
1 answer
1k views

EGS002 48 to 220 V inverter using IGBTs [closed]

I'm trying to build a 48 to 220 V inverter using IGBTs. The problem is that when I put on a resistive load (1500 W tea kettle) it works fine, but when I put on a inductive/capacitive load (1000 W arc ...
Silvally's user avatar
1 vote
2 answers
398 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 ...
Swiss Gnome's user avatar
1 vote
0 answers
86 views

Can I connect the isolated grounds of multiple DC/DC converters together?

I am working on a project that involves using isolated DC/DC converters to power gate driver ICs that will then switch on/off IGBTs. I have 9 DC/DC converters that will power 9 gate drivers each that ...
Luis's user avatar
  • 41
2 votes
2 answers
2k views

Driving an ignition coil with an IGBT circuit

I'm trying to drive an automotive wasted-spark ignition coil pack using the following circuit which is being driven by a high-side driver at 12 V at the input for a 3 ms dwell duration (IN1 & IN2)....
Joe's user avatar
  • 183
1 vote
1 answer
62 views

What transistors are used in DC-AC part of HVDC?

I know that thyristors are used for rectification, that results in choppy DC. But what about other side of line? How do they convert such high voltage back to AC? Highest voltage IGBT I found is 6.5kV....
Ri Di's user avatar
  • 1,039
0 votes
1 answer
77 views

Impact of reverse conduction on control strategy of PMSM motor

On a three-phase inverter working as a Master Control Unit (MCU) to control a permanent magnet synchronous motor, if we replace the IGBTs with SiC MOSFETs, what could be the possible impact of this ...
Alison's user avatar
  • 347
0 votes
0 answers
163 views

IGBT and SiC MOSFET conduction losses

What is the actual reason behind IGBTs having lesser conduction losses than SiC MOSFETs? For the same application, I can see that an IGBT having the same power rating exhibits 10 times more switching ...
Alison's user avatar
  • 347
1 vote
1 answer
337 views

Spikes on IGBT's turn-on waveforms

Here are the ideal IGBT turn-on waveforms and the actual waveforms from my own gate driver. What causes the spikes on the actual waveforms at t0? Idealized gate turn-on waveforms IGBT Turn-on ...
hossein valizadeh's user avatar
2 votes
1 answer
377 views

Why does a MOSFET or IGBT's surge current rating stop increasing with decreasing pulse width beyond a point, unlike thyristors?

Thyristor The surge current rating of a thyristor increases as the width of the pulse decreases. For a single non-repetitive pulse, it's not uncommon for a thyristor to have a surge rating that is 10x ...
比尔盖子's user avatar
  • 7,218

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