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LED VU meter increase

2014-12-23 16:16  
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The circuit will increase the input signal to a voltage signal circuits as much as two times.To affect the audio signal into more valuable.This makes all the transistor amplifier to drive LED is very.And emit light much more.
When raising the power circuit.And the input signal to act through the VR1 to adjust the sound more or less.Then passed to the C1 signal coupling.Then the signal goes into the circuit to add voltage,by the D1 and D2. So D1 and D2, which will make Direct Contact Fire signal into a DC voltage and power split and split positively delete files together.Then filtered to smooth power with C2.The first part of the signal will result to the Q1 R1 bias current expansion work to drive LED1-LED5 to light.The remaining signal is sent through diodes D3, D4 and D5.This will serve to break the sound signal to gradually decrease, respectively. To forward to the transistors Q2-Q4, each level of the signal strength coming.Then expand to the LED current to light the rhythm music.

LED VU meter increase

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