how to get fullwave rectified output 1.4v above x-axis.u r given sine wave input.this has to be done without using any dc source
2006-11-21 19:16:58 · 4 answers · asked by firebolt 2 in Science & Mathematics ➔ Engineering
i mean the whole output is lifted up...ie.the output is not touching x-axis.No distortion (no change of shape or value) to rectified output.only position is changed.
2006-11-23 20:50:26 · update #1
Use the sine wave as 2.8 peak to peak volts to a bridge rectifier. No clamping is possible without dc power source and capacitance.
2006-11-23 05:42:04 · answer #1 · answered by Mathew C 5 · 0⤊ 0⤋
Your question is not clear. All of the full-wave output is above the x-axis. If you mean that the half-sine waves rest on line 1.4v above the x-axis, connect two silicon diodes (each has a forward voltage drop of .7 volts) in series with the negative bridge connection. See this http://img165.imageshack.us/img165/9531/bridgejc4.png
EDIT: There should be a capacitor across the series diodes. It store the voltage and becomes the "battery".
2006-11-22 04:05:27 · answer #2 · answered by gp4rts 7 · 0⤊ 0⤋
I don't entirely understand the question -- what is meant by 1.4 v above x-axis? If you want an output voltage of 1.4 volts, use a resistor to feed DC from a bridge rectifier to two series-connected forward biased silicon diodes; the total voltage across them will be about 1.4 volts.
2006-11-22 03:30:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Diode bridge rectifier ?!
Why need dc sources ?
2006-11-22 03:20:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋