7 Threads found on edaboard.com: Rc Coupled Amplifier Circuit
Ampr/RC coupled amplifier1.htm
Electronic Elementary Questions :: 14.08.2006 06:48 :: my_books :: Replies: 1 :: Views: 9439
Reactance of a capacitor is Xc=1/(2*pi*f*C). It is infinite at f=0Hz and zero at infinite frequency.
At RC coupled amplifiers, in general, we can have different examples. The coupling capacitor and the resistor which follows it and which is grounded form a highpass filter. For passband frequencies it's capacitance should be large enough to presen
Electronic Elementary Questions :: 24.10.2004 13:58 :: Borber :: Replies: 1 :: Views: 1559
I'm an undergraduate trying to figure out my final year project. I have in in mind a hospital communication system.. which connects the doctor,nurse and patients... it should also indicate in the nurse room the bed number and the ward the signal is coming from.. I intend to use a simple but intercom circuit that is based fully on transistors.. i.e
Hobby Circuits and Small Projects Problems :: 04.02.2013 16:22 :: mikkyng :: Replies: 3 :: Views: 457
From my previous op amp building experience (which i post earlier), I know that I need to follow the datasheet, and build my circuit according to the schematics that's shown on the datasheet.
Here's my question tho:
When I was in school, I thought an inverting amp was just an op amp with two resistors, but when i tried to build the inverting am
Electronic Elementary Questions :: 12.12.2006 13:53 :: manofwax :: Replies: 4 :: Views: 2720
You have circuit, you have simulation results. What do you see on the oscillograms?
I see 70MHz gated oscillator.
Analog Circuit Design :: 13.03.2007 11:11 :: Borber :: Replies: 5 :: Views: 920
R1 + C2 = to increase amplifier gain
The LM386 has incorporated a feedback internally, though the gain is set at 20 internally, but it can be raised almost 10 times higher - that is up to 200, just by introducing a resistor and a capacitor across its pin 1 and 8.
Initial gain =15k/(1.35k +0.15k)
Adding R1 the actual Gain= 15k/(R1||1.35k +0.15k
Hobby Circuits and Small Projects Problems :: 03.07.2011 12:34 :: mister_rf :: Replies: 5 :: Views: 1717
AM demodulation : an envelope detector : diode into RC circuit
FM demodulation : cut off slope of bandpass filter converts change in frequency to AM signal and then an envelope detector : diode into RC circuit
Analog Circuit Design :: 28.02.2012 14:19 :: klystron :: Replies: 6 :: Views: 1181