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1000 Threads found on edaboard.com: Igbt Test Circuit
i need a test circuit for pic16f84a, i found so many ones but only for the pic16f84 . i don't know if they are suitable or not . Regards,
Dear all, I want to set up a circuit for measuring Ciss, Crss and Coss of a MOSFET by using a LCR meter (HP 4284A).I don't know how to set it up because this is the first time for me to design a test circuit. Can anyone help me?
Laser diode test circuit
Any one can offer a test circuit for delta-sigma ADC?? Thanks.
Because the other side is likely "hot" at lethal voltage, and nobody wants to be sued. Not all igbt driver ICs (in fact very few I see) are galvanically isolated. But there should be some isolation, somewhere between the user and the big hurt. Short circuit and overvoltage protection are meant to make the assembly survivable against mo
Hello everyone, Does anyone has idea what is prompt capacitance and how we can measure it.? suppose we have a test circuit consisting of capacitors,switch and wires inductance what would be the approximate prompt capacitance.? Thanks
Im looking to control the large voltage spike coming out of a audi ignition coil using the test circuit I made. See attachment. Im using a transistor NPN common emitter switch and a waveform generator to interrupt the current flow inside the coil. Is this the a good circuit design to demonstrate large voltage spikes from the ignition coil? (...)
hello everyone, i've been trying to simulate gilbert mixer in cadence 0.18um tech... while creating test circuit, i saw 'balun' is used in ref manuals. But balun is not giving proper differential outputs with some common mode voltage level,instead it is producing two entirely positive and negative signals. Does dis serves our purpose or do i n
why we use P channel and N channel MOSFET in igbt driver circuit?cant we use only n channel
Has any one tried simulating igbt with PSpice for accurate power loss and switching characteristics under HARD switching conditions? How accurate the simulation results are?
Hi! I'm trying to test a drive circuit with IR2110 IC for a igbt module but I'm having some problems. The control signal is ok in the HIN and LIN but I'm getting nothing in between HO and VS or between LO and COM. I didn't connect the COM to ground because I'll use a Neutral-Point-Clamped arm and I don't want to make a connection between (...)
Hello everyone, Currently I am studying the switching characteristics of igbt using Pspice simulation. I downloaded the spice model from manufacturer's website (for example, Infineon and International Rectifier) and used the same dynamic test circuit recommended by the product datasheet. I found many simulation results for switching loss (...)
Hi, I am working on a new design and am using IR 2125 high side driver to drive an igbt working with 110V DC Supply. In the circuit I am using, I am not able to protect the igbt during output short circuit. Can somebody pls help
Hi Guys I am trying to use TVS diode for signal line protection. i have build a test circuit in which i am using a bidirectional TVS diode, after a transceiver. VBr of diodes is 12V. When i checked the waveform across load i couldn't see any voltage clamping even at 15v across the diode. Can some one pls help me understanding how to (...)
Hi guys, I'm designing a MOS Rectifier for a RFID like application. I'm about to test some different structures, first of all the four transistor cell. I'm using cadence virtuoso for simulations. The goal is to load the load capacitance Cl with the rectifier. The rectifier gets the input signal over an inductive coupling. You can see my testcircui
hi i have problem to search value of dv/dt of igbt for my system. there many but it not supoort my system where need the high voltage up to 6.5kv. i need it because to design my snubber circuit for igbt. thanks
oh, thanks for ur remind. as to the desaturation diode, i have connected it to the igbt.
Hi, I have developed an Halogen Lamp Driver circuit based on Triac T1235H of ST Microelectronics. This circuit have to work at 220Vac. The gate of the triac is driven from a GPIO pin of STM32L152 microcontroller. The triac firing pulse generated from the STM32L152 is based on ZVC circuit that sense the zero voltage crossing on the main (...)
Dear Friends, I have a TURCK MC13-8B Switching Amplifier (8channel) (catalog : page:3). now this module don't work correctly. how can I test it to find the problem? the status LED blink constantly. I don't know how can I give input to it and test the output also can't find complete datasheet
igbts will be preferably controlled with bipolar gate voltage. If you also want short circuit protection and desaturation detection, a full featured gate driver IC instead of simple IR21xx would be suggested.
I am assigned to design a small SOC chip. There are cpu, memory and some digital/anolog modules are used in it. About test, the desire is: (1) The least test pins are used. (2) The least test time. (3) The smallest area of test circuit. Please help me to find a good solution. Thanks.
hi, i wanna do a test circuit using electrt microphone, so i need: a simple pre amp circuit with resonabilly high gain n not so big? thanks in advance regards
Hi everyone, I have to test a high gain (100dB+) op amp as accurately as possible so I tried the circuit on page 5 of this course : using a nulling amplifier. It is quite widely used over the internet. But couldn't make it work. The high gain of the op amp tested makes
Can anybody suggest that how to find an IC that whether it is working or not before using in our circuit
hi All, Is there anyway to test and make sure a PIC is working (hardware speaking) without considering buying another one ? I mean, i have an old PIC16F84 and i wanted to use it but i can't read/ write it . and Winpic 800 can't detect it anymore. Regards, Hassen.
anybody know how to test LVDS high speed IO? can U share?
Hi, I want to test the ac analysis of opamp with Bipolar input stages. I used the big R and big C in the feedback loop to open the feedback for AC analysis.This works only for the CMOS input stages. But bipolar input stages need base currents.. Can anyone help me with the test circuit? Thank you..
Hai, I designed igbt triggering circuit as follows Boost strap cap:220 uf electrostatic boost diode: UN4007 frequency 50hz that means 10ms on period and 10 ms off period. I use only HO pulse for triggering igbt. Supply voltage 30 v DC. Vcc=12v,vdd=12v. load 120Ω ,10 watt resistor. There is no problem during turn on period, (...)
Hi, I want to know how to test the GBW of a real opamp, and how to setup the circuit for this test? Thanks.
hello I m wrking on a prjct involving a 16X1 LCD..Can anyone tell me how can I test the LCD only by using multimeter or some other simple equipments. I dont want to use any programming technique to test it..Please help.. thank u apurv
hi i designed a continuous cmfb circuit as was showed in the attachment but it does now work as i expected its output is 1.56V at the typical corner when i changed everything (any or the transistors) of the cmfb circuit and the ota transistors the output does not change also it oscillates when at the fast corner and the slow corner the cir
Hello all, I never done I/O related works, but I have to design a test circuit which can send 4GHZ clock signal to oscilloscope. So I need helps from you guys. I will land an AC probe on a on-die landing pad, and this probe will be connected to a SMA cable. This cable will be connected to oscilloscope through SMA connector. Anybody tried
This is one of the test circuits given in datasheet of SG3524, with a little modification, mostly insignificant, like changing the value of inductor and using just one BJT instead of 2, as given in datasheet. I am not getting any output there. The expected % volts is not there. The signal out of pin 13 has a duty ratio of almost 0. What could the r
Need to test a. transistor - good or bad and pnp or npn b. diode - good or bad c. continuity pic 16f877a ,lcd display is required 2 switches to select these 3 parameters ie, si and s2 a menu driven c program is required switch s1 is used to view the three parameter and switch s2 selects the parameter for eg: if we want 2 test a d
Hi guys! How to design the circuit to simulate opamp parameters, eg: input offset, CMRR, PSRR, gain, slew rate... There are 2 types: single power supply and 2 power supply, which one should i use? How to decide the components value of resistor, capacitor... if lets say i want to simulate opamp uA741 Your help is greatly appreciated, thank y
hello colleagues test mosfet specification there is big problem becam famous now many bad new mosfet in the market for example IRFP460A it.s Characteristics is Drain to Source Voltage is 500v and Drain Current is 20A BUT WHEN I BOUGHT 4 transistors in akai plasma burned SO FAST AND DAMAGE DRIVER IC.S AND POWER SUPPLY UNIT AFTER REBUILD GET
I need some advice on how to measure open loop gain and phase of an amplifier. I am looking for a practical circuit to use in the lab rather than a Spice circuit. I have attached two circuits. The AVOL_Ideal-Servo is what I believe to be practical for a lab measurement. The reason I am using an ideal amplifier after the DUT is to (...)
How to test a Sidac ? thanks
How to test a Bidirectional Transil diode or (TVS) diode ? thanks
Hello all, I have prepared following circuit and I have troubles with MOSFET driving. circuit info: VDD = 2.8V (two fully charged NiMH AA batteries) NE555N replaced by ST555CN (CMOS, from 2V power supply)
How to test UJT (unijunction transistor) ? thanXxX
How to test this integrated Regulated PWM " SG3524N " ? What does it mean by " shutdown ", " Current Lim + " & " Current Lim - " ? why are they used ? thanks
Hi, all. I made a air-coil inductor. How to test its frequency response, or can anyone give me some advices to do a test circuit? Thanks.
Assuming that the differential gain of the amplifier is Adm, and the common mode gain is Acm. Then,could anybody help me to calculate the circuit's gain? notice: the resistors are 1k ohms and 1M ohms. 73099
Hi , I am trying to develop a system to test the loop-back connection of USB devices? Any idea? Something like this: Regards, Sharon
Dear folks, I have recently brought 7 segment display. But I haven't found any datasheet for the same. when I connected same with 5V it doesn't glow / light well.... it looks very dim, so I tried with 9v and 12v but ended up damaging one segment :cry: I have attached the circuit and pics of 7 segments...please suggest better solution... Wa
I have a chip (SN75451B).I am trying to understand the function of it so that i can built a circuit which shows the function of it.how to test it?i mean i want to give a Square wave to the input and i want to see the output signal.what are the parameters i should consider?
how to know and how to test microcontroller ic is damaged or get burnt.....??
I have designed a driver circuit using HCPL-3120. i think i am getting the output pulses but i am not able to vary the voltage and the pulse width of the output pulses. i am attaching the circuit dig., output voltage and input voltage... if anyone has any idea please reply....
First post here. I'm a beginner in electronics and is just starting out with arduino development. So, I'll power an arduino board and a stepper driver circuit with a lead ackumulator 6V 12Ah. Stepper uses approx. 1300 mA the Arduino more or less nothing in comparison. Both the stepper and the arduino run at 5V regulated. I got the suggestion tha