Questions tagged [igbt]

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

32 questions with no upvoted or accepted answers
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2answers
820 views

IGBT-based capacitor charge transfer and thyristor-based capacitor discharge

simulate this circuit – Schematic created using CircuitLab I am designing a circuit to provide a couple of strong and fast current pulses (~1000 A, more current is better, ~100 us, half-sine) ...
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1answer
31 views

DC Chopper Operation in SMES Design

I'm reading a paper on a superconducting magnetic energy storage (SMES) power control system. One large superconducting inductor (L1 in the figure below) is charged up by a 10kA power supply. Once ...
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0answers
37 views

Ringing issue in high-side IGBT connected transmission line

I am trying to charge a transmission line (Z0=4.4 ohms, propagation delay=1.4 ns) by a HV (1-1000 V, 600 mA) power supply through a 1700 V rated IGBT (S1). The charged transmission line gets ...
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1answer
99 views

high side driver failure

I am having 100% failure rate trying to get this high side driver to operate. The failure happens as soon as the 5v logic signal is turned on. I have had straight shorts from VDD to GND, and I have ...
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3answers
87 views

Question on current sensor sampling

I'm using this current sensor TLI4970-D050T4 located at the emitter leg of a power IGBT. This transistor is being switched at 10 kHz. How do I choose the convenient sampling frequency for the sensor? ...
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0answers
303 views

IGBT failure and protection

I have a 3-phase bridge rectifier (shown below). I am using an IGBT (STGE200NB60S) to limit the inrush current from the capacitors at start up. I also added the NTC thermisters to help with the inrush ...
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0answers
31 views

High Speed Piezoactuator Driver-Unexpected (Low) Voltage Output

I'm working on a project that requires charging and discharging a piezoactuator (150V, 1.5μF) extremely fast, IE total slew time allowed ~50μs (so somewhere around a 11A pulse). My background is in ...
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0answers
86 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 ...
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0answers
377 views

Significant voltage drop across IGBT

I'm using an IGBT in a wireless charger circuit as a swtich to send 'pulses' of power across the gap. I have 14V coming from the mosfet driver and I can see around 5v on the collector. I have the ...
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0answers
114 views

MOSFET Behavior During Pulsed Operation

I am trying to use back-to-back MOSFETs/IGBTs to isolate my pulsed supply from my load. In theory, I will switch on the MOSFETs, and the pulsed supply will be attached directly to the load (but not on ...
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0answers
9 views

Infineon IPOSIM tool for IGBT thermal loss calculations

I used the infineon IPOSIM power tool for simulating a motor drive for my required conditions and got the results for a custom input drive cycle. The results were given as power dissipation per IGBT(...
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0answers
37 views

IGBT confusion with determining Ic

For this IGBT I-V curve say I have a Vge of 10V and no biasing resistor on the collector with 5 Volts being supplied by some supply providing up to x watts. According to this I-V curve this should be ...
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0answers
24 views

Why Dspic304011 Controller's PWM stucks to 50% duty cycle when DC link Voltage is turned onn before the gate votlage turned onn in SPWM inverter.?

I have implemented SPWM inverter that take input from grid (230V AC) and convert this to DC link voltage 320V and this DC link voltage is converter to desire frequency. The gate driver IR2136 is used ...
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117 views

inverter circuit

My inverter only produces about 8 volt output while the supply is as high as 20vdc, what's wrong with my inverter circuit ? ...
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0answers
29 views

Temperature-dependent leakage current in IGBTs

On one hand, the leakage current of power electronics modules such as IGBTs depends on the temperature. On the other hand, the temperature distribution on the IGBT chips is significantly non-uniform ...
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1answer
60 views

1A relay replace by IGBT

Is it possible to use IGBT to replace a relay , previous i use EV-200 (1A relay) to switch DC 600V 500A like the pic below Now i want to use IGBT to replace, but i have no idea about how it be just ...
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159 views

Simulate H Bridge in Pspice

I want to simulate an H-bridge in pspice but it doesn't work and Z3 and Z6 (High side and low side IGBTs) can not drive at the same time. Here is my schematic
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0answers
36 views

IGBT Power Calculation in motor control application

My DC motor's nameplate says: VOLTS: 125 AMPS: 27A HP: 4 HP RPM: 5000 RPM DUTY: CONT. I chose this IGBT IKW50N60DTP to drive the motor with a PWM frequency of 5 kHz using a single-quadrant ...
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1answer
43 views

HO defaults “On” on high side/low side driver

I have an application where I need to drive 2 piezoactuators in a push-pull arrangement (voltage 180deg out of phase with each other) where the charge/discharge time is about 50 microseconds and the ...
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1answer
67 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 ...
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1answer
55 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 (...
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2answers
77 views

Ic-Vge IGBT Curve

In the figure below, presented in the manufacturer datasheet, you can see the Ic-Vge curve of an IGBT device. As mentioned, it has been drawn at Vce=20V. What does this equality mean? Can we have such ...
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1answer
325 views

IGBT contactor design

I found this circuit in an older post. I was thinking about using this in place of a contactor to break under load. The load would be at 500V 300A DC. There would be overcurrent protection in line ...
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0answers
123 views

Why if I change the sample time in Matlab/Simulink modifies results in a huge way?

I'm having trouble with the circuit I'm studying but in order to modify some values, I want to get out this question of my mind. * Example 50e-6 * Example 50e-7 * Example 50e-8 I use a S-Function ...
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0answers
83 views

Why Fault pin of IR2136 gate driver is getting low at high voltage?

I am implementing a variable frequency drive for a three-phase induction motor. I used IGBT module fs25r12w1t4 with gate driver ( three phase, six Channels IR2136). When I increase the voltage, the ...
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1answer
73 views

why fs25r12w1t4 infineon module is burnt out when high current is paassed through it?

I am implementing a VFD for Induction motor drive. I have used fs25r12w1t4 Infineon IGBT module ( 1200v 25A) with gate driver 6ed003l06-f2. It always burnt out when I passed 2A current. What may the ...
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0answers
353 views

Can you drive a logic level IGBT directly from a micro controller?

My question pertains specifically to devices like an EcoSPARK®2 400V, N-Channel Ignition IGBT. I'm investigating the requirements for building an electronic ignition system for a go cart. This would ...
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0answers
172 views

IGBT SOA rating vs. Short Circuit rating

I have an IGBT (with integrated anti-parallel diode; forgive the BJT symbol in the diagram) that is switching an inductive load with a ~300 Vdc supply. The threshold voltage is ~5V and I'm driving it ...
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378 views

Who do IGBT rectifiers have floating gates (unlike MOSFET rectifiers)?

When I search Google Images for "IGBT rectifier", I notice that they all appear to have floating gates. But don't IGBT's have gates like the ones on MOSFET's, in which it's insulated from the other ...
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1answer
32 views

Does a datasheet paramaters of an IGBT gives you a DC , AC rms or an average value

For an example if you look at this datasheet for an IGBT datasheet , It has values for 1) Vces 2) Ic 3) VGes ect. Does these values give you a DC, or AC RMS or an average value?
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3answers
400 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 ...
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0answers
224 views

Can an IGBT overcurrent damage the driver?

We are using an hex IGBT module (datasheet: http://www.microsemi.com/document-portal/doc_view/7751-aptgt150ta60pg-rev2-pdf) which is driven by two separate IGBT drivers, the 2SC0108T2D0-07 (datasheet ...