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I made an amplifier with input from function generator(3V,sine wave,frequency upto 50khz). When i try to get output for 1khz frequency,i get around 1A but when i go for higher frequency like above 5khz,it doesn't work and gives around 200mA. Even the dc power supply to transistor can't be...
Connected multimeter in series with load resistance!! but it gives no output. Still the input+(pin7) is connected to supply voltage(pin 2) and ground(pin 4). I checked the circuit connections multiple times but as soon as i connect power sources, these pins seems to be connected.I connected .1uF...
This circuit doesn't provide 1 A. I get it that it works like voltage follower circuit but i don't get any current in the output,although input is same as output.
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Thanks,yes,floating inputs were the problem. Now my output voltage is same as input by i am getting 0 current...
Thanks for the circuit. I made this circuit and somehow port7 of PIN is connected to port8,2, and 4.(doesnt matter what op Amp i use). They are always connected . As for your question related to application of amplifier, I have to excite a membrane with the amplifier which requires a current of...
1)if i don't use +/-30,my o/ voltage gets clipped.
2)thank you,i got this one.
3)Op Amp is l272, diode is 1N4003 and bjt is TIP 3055(npn)
4)it's 33 mohms,but it would heat my sample too much so i'll add 33 ohms in series
5)its peak to peak
Hello
I am working on audio amplifier for my project.I'll share the image below post.I ran the design on LT Spice. It seems to work while simulating but somehow when i designed it on pcb,it doesn't work. My Op Amp and transistors heat a lot and some ports of my op amp are short circuited. I am...
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