| Voltage Controlled Amplifier |
Article Index for Voltage |
Information AboutVoltage Controlled Amplifier |
|
They have many applications, including Audio Level Compression , Synthesizers , and Amplitude Modulation . A crude example is a Typical Inverting Op-amp configuration with a Light-dependent Resistor (LDR) in the feedback loop. The gain of the amplifier then depends on the light falling on the LDR, which is can be provided by an LED (an Optocouple ). The gain of the amplifier is then controllable by the current through the LED. This is the type of circuit used in "optical" Audio Compressor s. EXTERNAL LINKS |