2006-06-22 12:06:20 · 2 answers · asked by JK6969 1 in Consumer Electronics ➔ Other - Electronics
Power is proportional to the square of the voltage, and so is power gain.
The square root of 15 is 3.873, which is the voltage gain.
2006-06-22 12:31:40 · answer #1 · answered by dmb06851 7 · 0⤊ 0⤋
this in all fairness meaningless with no circuit. many times the amplifier is carried out as a voltage amplifier, with a cutting-edge amplifier following to improve the means. the present amplifier point makes use of emitter followers, so the voltage earnings is a million. The voltage amplifier has to grant adequate cutting-edge tocontinual the present amplifiers. those are many times carried out extra or much less comparable to an op-amp, with extra voltage (maybe) and cutting-edge. there is conventional DC comments to stabilise the DC working ingredient, and conventional AC comments to stabilise the AC earnings. The output is a voltage source, like an op-amp. probably with a 15V furnish the sinewave output voltage would be approximately 13V p-p and that's 4.6V RMS. the means is as a result V^2/R = 2.66W, and so the present is 0.578A RMS or 0.82A height. layout for output cutting-edge of 1A or extra. maximum could use a 3A transitor pair like the BD139/BD140. the 1st link is an incredibly user-friendly occasion, for a 10W amplifier. the 2d link is a miles better occasion to your needs. i opt to propose you simulate the layout.
2017-01-02 04:00:56 · answer #2 · answered by ? 4 · 0⤊ 0⤋