Volume control circuit

A volume control can be made from just a single potentiometer. A value around 10K should be suitable for most applications. Any signal is measured with reference to 0v. An additional control input.

This can be used as a digital volume controller for audio amplifiers and other applications. If you are tired of adjusting the volume with a normal volume. I suggest this is the remote and touch volume.

This series is the volume of the digital amplifier That is used on or tone control. Here is the simplified schematic drawing for the circuit. I drew the back side of the potentiometers a bit different than they will look to simplify the view.

The function of this automatic volume control circuit is to amplify signals without distorting its dynamic compression. The amplitude differences in the signal are. AVC Automatic Volume Control - AVC – The featured circuit controls a volume line automatically. It delivers an output voltage of approximately volts peak to peak.

This voltage remains relatively constant by input voltages ranging from several hundred milivolts to serveral volts. In this tutorial, I’ll show you how to build a great sounding audio amplifier with the LM3Low Voltage Audio Power Amplifier. I built about a dozen different audio amplifier circuits with the LM3but most of them had way too much noise, popping, and other interference. Finally I found one that sounds great, so I’m going to show you how to build it. Stereo, cascaded traditional volume control , more = better?

This is digital volume control circuit that Can be applied to the normal volume of a power amplifier. When press switch Sadds up the volume and press switch Sto. This circuit allows a user to change or vary the volume to make sounds lower or louder.

This is how any standard volume control works with speakers. A mode-indicator LED output indicates volume or balance control. Five integrated LED drivers indicate volume level or balance settings, depending on the status of the mode indicator. Voltage Controlled Volume circuit his volume control circuit offers an unusual approach to the well-known problem of distortion in active-device attenuators.

This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instea the volume is controlled by pressing UP and DOWN buttons. Note that the configuration described requires a high impedance loa and the passive Better Volume Control cannot be used in this circuit. Used in the manner shown, it is a very similar concept to the better volume control of Figure except it is (in a sense) the same idea in reverse. The block diagram and an application circuit is shown in Fig.

An amplifier that only amplify audio frequency range (typically 20Hz to 20K Hz) and attenuates all other range frequency range is called an audio amplifier. Benchmark has introduced a new analog-to-analog volume control circuit that features a 256-step relay-controlled attenuator and a 16-step relay-controlled boost. Hz (–dB) with the value of 2. This page provides background information to construct controllable attenuators for electronic signals, in particular targetting audio volume control.

Different circuits are shown with their pros and con. You will have a control with the large boosts and cuts of the RCA circuit but one that will drive the balance or volume control directly without an additional tube circuit. Inserting a tone control between preamp and power amp. Digital volume control , Two ladder networks and a buffer each from a volume control with a range of dB.

Circuit diagram of digital volume control unit for LM3There are three tact switches for user inputs. Network R3-Rprovides fine control. They are named UP, DOWN, and SELECT in the circuit diagram.

This Audio Mixer mixes multiple audio inputs to a single audio output, with knobs to control the volume of each channel. My particular build features stereo RCA inputs mixed to stereo RCA output. You could easily alter this design to any combination of jacks that you need.

Figure 1: Attenuator ( Volume Control ) Schematic Notice that the Pole Double Throw (4PDT) switch takes care of both the grounds and the hot leads so that when one source is selecte the control is neatly inserted into the circuit without any ground sharing.