Amplifier power is a circuit of
electronics that is used to strengthen the power (or energy in
general). In the field of audio, amplifier will amplify the sound
signal (which has been expressed in the form of electric current) on
the input it into electric current is stronger at the output. The
amount of strengthening is often known by the term gain. Value of the
gain is expressed as a function of frequency is called the transfer
So the gain is the result of the power output (Pout)
and power at the input to its function in the form of frequency. The
size of the gain, (G) is usually the Decibel (dB).
2N3055 Power Amplifier
2N3055 Power Amplifier . The optimal supply voltage is around 30V, but
this amp work from 24 to 32V. The maximal input voltage is around 0.8 -
1V. As you can see, in this design the components have a big tolerance,
so you can build it almost of the components, which you find at home.
The and transistors can be any NPN type power transistor, but do not
use Darlington types. The output power is around 150 Watt.
Skema Rangkaian 2N3055 Power Amplifier
capacitor C1 regulates the low frequencies (bass), as the capacitance grows, the low frequncies are getting louder.
capacitor C2 regulates the higher frequencies (treble), as the capacitance grows, the higher frequencies are getting quiter.
is a class B amplifier, this means, that a current must flow through
the end transistors, even if there is no signal on the input. This
current can be regulated with the 500Ω trimmer resistor. As this
current incrases, the sound of the amplifier gets better, but the end
transistors are more heating. But if this current decrases, the
transistors are not heating so much, but the sound gets worse.