hi all
I am using an IGBT IRGPC50U in my circuit and for this i have designed driver. And i am getting a 5V signal (pulse width 1ms and frequency 25hz) from optical fiber reciever HFBR 2531 and i am amplifing this voltage to 15V using an transistor switch and this 15 is being given to IGBT through push pull circuit. But i am getting around 10us delay from base to collector of amplifying transistor and so from signal to IGBT.
When i simulate this circuit in orcad it was giving less than 1us delay but when i assemble it practically it is giving around 10us delay which is not tolarable.
I have attached my orcad circuit and practical waveform by CRO.
Plz help how can i reduce this delay
Thank you in advance
I am using an IGBT IRGPC50U in my circuit and for this i have designed driver. And i am getting a 5V signal (pulse width 1ms and frequency 25hz) from optical fiber reciever HFBR 2531 and i am amplifing this voltage to 15V using an transistor switch and this 15 is being given to IGBT through push pull circuit. But i am getting around 10us delay from base to collector of amplifying transistor and so from signal to IGBT.
When i simulate this circuit in orcad it was giving less than 1us delay but when i assemble it practically it is giving around 10us delay which is not tolarable.
I have attached my orcad circuit and practical waveform by CRO.
Plz help how can i reduce this delay
Thank you in advance
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