2006-06-22 18:02:33 · 3 answers · asked by vix up 1 in Education & Reference ➔ Higher Education (University +)
sin,cos waveform in a.c.
straight line in d.c.
2006-06-22 18:09:27 · answer #1 · answered by Anonymous · 0⤊ 0⤋
There are lots of ways to do this. My suggestion would be to use the astable multivibrator because its operation is easy to understand. I have built these before and they are characterized by two identical transistors and produce alternating flashing lights. You should be able to find lots of circuits if you Google "astable multivibrator" but there is one at Wikipedia. Another circuit uses a PNP and an NPN as a relaxation oscillator. I have found these in the "barricade" flashers near road construction. They are very efficient. See the Bowden link below and look for "Two Transistor LED Flasher".
2016-05-20 12:53:40 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It all depends upon what type of circuit it is. There could be square waves for digital circuits or sine waves for audio circuits. Then there are other special waveforms for specialized circuits.
2006-06-22 18:09:47 · answer #3 · answered by Martin S 7 · 0⤊ 0⤋