This is an
audio amplifier that can be used with a small 9 volt Battery
Operated,Current use as little as 5 milliamps.And amplification up to
500 mW.
Which is sufficient to expand the sound from a sound about or the CD Walk Man out to the small speakers clearly.
When entering the power supply 9-volt circuit IC1 number LM386 amplifier IC size is 300-800 mW, Depending on the power supply circuit with,This is from 4-15 volts.
Once entered into the input pin 3,The non inverting pin to amplifier
non-return phase.C1 will be served cut out the noise input to ground.And
C2 increases the rate of amplifier,C2 is to add more value.But if the
C2 Too much distortion (the C2 should not exceed 100uF).The output of
IC1 is out of the pin 5 through C4 coupling audio signals to better and
DC block and not passed to the speaker.For the audio portion will also
be fed back through R2 and C3 to the high frequency response better.
++++++++++++++++++++++++++++++
Next circuit ideals that use LM386 IC.
circuit number LM386 IC is used as the IC, which is popular is that it
has. It is a simple circuit. Less equipment items. Suitable for use or
used in small trials.
The properties of the IC can be used from
4V-12V power supply for low current at 50 mA only. And the frequency
response from 40Hz – 100 kHz rate of expansion of 46 dB and distortion.
Less than 1%.
When entering the power supply light LED1 circuit to tell the
operating environment of the circuit. C6 and C7, with a page filter to
smooth then be entered through one input sound signal.
C1 coupling
signal protection dc voltage noise in circuit to the sound signal that
is transmitted through VR1 for controller level reputation of sound
signal and then sent to the input to pin 3 of IC1.
boost up output at
pin 5 through C5 for protection dc voltage and meet the low frequency
better and send out put speakers. The C4 and R1 is acting eliminate
noise signal out and the pin 1 of IC will have a jumper for. to access
the C3 to boost up rate increase in case the circuit to be used to
boost up signal is very small.
circuit, will help expand the sound small. such as radio, sound out,
including CD WALKMAN. To the more powerful sound.The amplifier circuit
can be up to 7 watts. Enough to use a good listening room.And most
importantly is a very simple circuit.
Operation of the circuit. be Input signal is coupling with the
C1.Passed into the pin 1 of IC1 number LM383. Amplifier output from
the pin 4.Through C3 increase in low frequency stability better, before
leaving to the speaker. The R2 and R3 set the gain 100 times. Which is
calculated from the (R3/R4) +1.The C2 functions help in frequency
response.
audio amplifier that can be used with a small 9 volt Battery
Operated,Current use as little as 5 milliamps.And amplification up to
500 mW.
Which is sufficient to expand the sound from a sound about or the CD Walk Man out to the small speakers clearly.
When entering the power supply 9-volt circuit IC1 number LM386 amplifier IC size is 300-800 mW, Depending on the power supply circuit with,This is from 4-15 volts.
Once entered into the input pin 3,The non inverting pin to amplifier
non-return phase.C1 will be served cut out the noise input to ground.And
C2 increases the rate of amplifier,C2 is to add more value.But if the
C2 Too much distortion (the C2 should not exceed 100uF).The output of
IC1 is out of the pin 5 through C4 coupling audio signals to better and
DC block and not passed to the speaker.For the audio portion will also
be fed back through R2 and C3 to the high frequency response better.
++++++++++++++++++++++++++++++
Next circuit ideals that use LM386 IC.
Amplifier 500 mW with ic LM386N
Thiscircuit number LM386 IC is used as the IC, which is popular is that it
has. It is a simple circuit. Less equipment items. Suitable for use or
used in small trials.
The properties of the IC can be used from
4V-12V power supply for low current at 50 mA only. And the frequency
response from 40Hz – 100 kHz rate of expansion of 46 dB and distortion.
Less than 1%.
When entering the power supply light LED1 circuit to tell the
operating environment of the circuit. C6 and C7, with a page filter to
smooth then be entered through one input sound signal.
C1 coupling
signal protection dc voltage noise in circuit to the sound signal that
is transmitted through VR1 for controller level reputation of sound
signal and then sent to the input to pin 3 of IC1.
boost up output at
pin 5 through C5 for protection dc voltage and meet the low frequency
better and send out put speakers. The C4 and R1 is acting eliminate
noise signal out and the pin 1 of IC will have a jumper for. to access
the C3 to boost up rate increase in case the circuit to be used to
boost up signal is very small.
Small audio amplifier IC 7w using lm383
Thiscircuit, will help expand the sound small. such as radio, sound out,
including CD WALKMAN. To the more powerful sound.The amplifier circuit
can be up to 7 watts. Enough to use a good listening room.And most
importantly is a very simple circuit.
Operation of the circuit. be Input signal is coupling with the
C1.Passed into the pin 1 of IC1 number LM383. Amplifier output from
the pin 4.Through C3 increase in low frequency stability better, before
leaving to the speaker. The R2 and R3 set the gain 100 times. Which is
calculated from the (R3/R4) +1.The C2 functions help in frequency
response.
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