I
Inspar8r
- Jan 1, 1970
- 0
Hey guys, i have another question for a project in one of my classes.
We have to design and build a power amplifier as part o fthe final
project. Now the rquirements are really basic, in fact, so basic, i
want to do more, which is encouraged.
My question is, using the 741 as an op-amp for my pre-amp circuit, can
i just daisy chain several op-amp circuits???
I want to have the process go as follows:
mono rca input>>stg 1 pre-amp>>active filter (high low and
pass, using a three way switch)>>stg 2 pre-amp>>stg3
pre-amp>>power amplifier>>speaker.
With the setup they require, there only needs to be one pre-amp, and
using a single darlington tansistor, the output power is at a mere
.5W with the pre-amp's Vcc @10V.
When chaining them up, does the output of one pre-amp feed into the
top (-) terminal of the op-amp, and the (+) side goes to ground on
all proceeding op-amps???
On the (+) side of the op-amp, we designed 2 resistors as a voltage
divider to give us 1/2Vcc, do i need to do this for all pre-amps as
well.
Hopefully you guys can follow. I want a relatively usable amplifier.
We have to design and build a power amplifier as part o fthe final
project. Now the rquirements are really basic, in fact, so basic, i
want to do more, which is encouraged.
My question is, using the 741 as an op-amp for my pre-amp circuit, can
i just daisy chain several op-amp circuits???
I want to have the process go as follows:
mono rca input>>stg 1 pre-amp>>active filter (high low and
pass, using a three way switch)>>stg 2 pre-amp>>stg3
pre-amp>>power amplifier>>speaker.
With the setup they require, there only needs to be one pre-amp, and
using a single darlington tansistor, the output power is at a mere
.5W with the pre-amp's Vcc @10V.
When chaining them up, does the output of one pre-amp feed into the
top (-) terminal of the op-amp, and the (+) side goes to ground on
all proceeding op-amps???
On the (+) side of the op-amp, we designed 2 resistors as a voltage
divider to give us 1/2Vcc, do i need to do this for all pre-amps as
well.
Hopefully you guys can follow. I want a relatively usable amplifier.