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I have not checked the temperature but if I don’t apply the DC supply across the IGBT it works and don’t give desat condition for long time but as soon as I apply DC supply after few time it gets error after few minutes
hello everyone i have build a desat detection with IGBT driver , i am using this circuit to drive IGBT of 1200v 100A to switch 160 dc to 160 ac.
the circuit works fine till approx 5 minutes.after 5 minutes if the dc supply is on then it unnecessary detects as desaturation.
but if the same...
thanks Kluas,
i have not shown the RC circuit at pin no.3 in schematic instead used a open switch on both ic but it is RC circuit in real.
the dc voltage i am using is 150volts (and is variable).
and as far for the function of microcontroller all i want is that during desaturation my IR2214...
hello all, i have built the dc to ac converter using two ir2214 ic and 1200v rating mosfet,i have connect sy_fault and fault/sd pin to high logic and fault_clear pin to combination of RC to provide high logic for particular microsec and then it provides the low logic to fault_clear pin. till...
i have magnetic design data sheet for transformer and it is built according to that specification only i have also tested transformer at 40khz with input as 100v ac i got 11volt ac at 12v output and i got 144v at 170v output , also i checked mathematically the ratios of primary winding divided...
i checked the working of ic ncp1308 without transformer and connected a bulb at primary where transformer was connected just to check the working of ic the bulb turn on and off for nearly 1 sec repeatably.
after that i connected same transformer again and when i gave supply of 90 vac the...
i have made the circuit from the bridge section thus skipped the EMI filtering part , so it is necessary to build that too?
i have checked my circuit many times it doesnot hold error in soldering or connection also i have made transformer from vendor so i dont know much about its phasing can...
I have made a circuit using the design note- DN06014/D (https://www.onsemi.com/pub/Collateral/DN06014-D.PDF) but the circuit is not working no output at both 12v and 170v.i have traced the circuit three times and connection is all good i dont know where the problem is in the circuit.please help...
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