Jul 28, 2008 #1 S saleheen Member level 3 Joined Mar 8, 2008 Messages 59 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,633 How do I design an unity buffer (non-inverting) using a transistor(2N3904) ? The input comes from an amplitude modulation circuit with carrier frequency of 40kHz. Therefore, the bandwidth should also be considered.
How do I design an unity buffer (non-inverting) using a transistor(2N3904) ? The input comes from an amplitude modulation circuit with carrier frequency of 40kHz. Therefore, the bandwidth should also be considered.
Jul 29, 2008 #2 R ricklin Member level 4 Joined Feb 20, 2006 Messages 78 Helped 9 Reputation 18 Reaction score 0 Trophy points 1,286 Activity points 1,717 Only 1 transistor?? A simply emitter follower will fulfill the job, if you don't care the DC shift and a small gain loss.
Only 1 transistor?? A simply emitter follower will fulfill the job, if you don't care the DC shift and a small gain loss.
Jul 29, 2008 #3 S saleheen Member level 3 Joined Mar 8, 2008 Messages 59 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,633 I need high bandwidth..
Jul 29, 2008 #4 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,910 Helped 1,753 Reputation 3,512 Reaction score 1,364 Trophy points 1,393 Location Germany Activity points 40,403 What means "high" ? 1 MHz ? 100 MHz ? Only one transistor allowed ? One or two power supplies with which value(s) ?
What means "high" ? 1 MHz ? 100 MHz ? Only one transistor allowed ? One or two power supplies with which value(s) ?
Jul 30, 2008 #5 R ricklin Member level 4 Joined Feb 20, 2006 Messages 78 Helped 9 Reputation 18 Reaction score 0 Trophy points 1,286 Activity points 1,717 I think you need to detail your spec too. For one transistor and same power, emitter follower almost the highest bandwidth.
I think you need to detail your spec too. For one transistor and same power, emitter follower almost the highest bandwidth.