variable-gain (VGA) or voltage-controlled amplifier (VCA) is an electronic amplifier that varies its gain depending on a control voltage (often abbreviated...
7 KB (909 words) - 00:48, 11 April 2024
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or...
56 KB (7,058 words) - 18:53, 20 June 2024
clear. A voltage buffer amplifier is used to transform a voltage signal with high output impedance from a first circuit into an identical voltage with low...
14 KB (1,806 words) - 16:32, 24 January 2024
considered to be a voltage controlled amplifier. Obvious applications would be for electronic volume control and automatic gain control (AGC). Although analog...
7 KB (881 words) - 21:43, 24 May 2024
transconductance amplifier (OTA) is an amplifier that outputs a current proportional to its input voltage. Thus, it is a voltage controlled current source...
9 KB (1,033 words) - 11:59, 28 August 2024
equalization/tone-control circuits or (b) construct oscillators. The gain of the amplifier with feedback is derived below in the case of a voltage amplifier with voltage...
54 KB (6,754 words) - 11:16, 3 May 2024
differential amplifier is a type of electronic amplifier that amplifies the difference between two input voltages but suppresses any voltage common to the...
27 KB (3,791 words) - 00:57, 10 August 2024
Non-linear filter Self oscillation Subtractive synthesis Voltage-controlled amplifier Voltage-controlled oscillator Trevor J. Pinch, Frank Trocco (2002). Analog...
4 KB (446 words) - 05:18, 18 March 2024
Transconductance (redirect from Transconductance amplifier)
transconductance to be controlled. A transresistance amplifier outputs a voltage proportional to its input current. The transresistance amplifier is often referred...
10 KB (1,155 words) - 09:50, 20 August 2024
An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output...
78 KB (10,193 words) - 16:56, 18 August 2024
A class-D amplifier or switching amplifier is an electronic amplifier in which the amplifying devices (transistors, usually MOSFETs) operate as electronic...
16 KB (2,086 words) - 01:18, 17 August 2024
power amplifier classes are letter symbols applied to different power amplifier types. The class gives a broad indication of an amplifier's characteristics...
34 KB (5,104 words) - 07:50, 7 September 2024
Dbx (company) (section Voltage controlled amplifier)
inventions of David Blackmer and dbx are the Blackmer gain cell (a voltage controlled amplifier for professional audio) and the dbx RMS detector. The original...
8 KB (716 words) - 18:27, 22 July 2024
(CCVS). Transimpedance amplifier, an ideal current controlled voltage source (CCVS) Norton amplifier, a current controlled voltage source (CCVS) with a...
8 KB (1,124 words) - 21:05, 20 September 2022
voltage-controlled oscillators, voltage-controlled filters, voltage-controlled amplifiers and envelope generators. The first modular synthesizer was developed...
20 KB (2,529 words) - 17:54, 14 November 2023
Synthesizer (section Voltage-controlled amplifiers)
Company built the Novachord, a large instrument powered by 72 voltage-controlled amplifiers and 146 vacuum tubes. In 1948, the Canadian engineer Hugh Le...
54 KB (5,200 words) - 22:33, 17 August 2024
A voltage-controlled oscillator (VCO) is an electronic oscillator whose oscillation frequency is controlled by a voltage input. The applied input voltage...
16 KB (1,884 words) - 20:50, 16 July 2024
signs. Saturable reactor amplifiers were used for control of power to industrial furnaces. Magnetic amplifiers as variable AC voltage controllers have been...
21 KB (2,586 words) - 21:19, 8 February 2024
satisfy certain requirements. The operational amplifier must have large open-loop signal gain (voltage gain of 200,000 is obtained in early integrated...
30 KB (4,278 words) - 14:38, 25 July 2024
of the output voltage can be significantly increased by using a differential amplifier, possibly implemented as an operational amplifier: In this case...
30 KB (4,244 words) - 10:10, 10 September 2024
Blackmer gain cell (category Transistor amplifiers)
Blackmer gain cell is an audio frequency voltage-controlled amplifier (VCA) circuit with an exponential control law. It was invented and patented by David...
31 KB (3,831 words) - 23:47, 6 September 2024
A voltage-controlled resistor (VCR) is a three-terminal active device with one input port and two output ports. The input-port voltage controls the value...
24 KB (3,080 words) - 21:26, 15 May 2023
analog synthesizer circuits like voltage controlled oscillators, voltage controlled filters, and voltage controlled amplifiers. While both an OTA and an op-amp...
3 KB (229 words) - 14:58, 23 March 2024
Common emitter (redirect from Common emitter amplifier)
common-emitter amplifier is one of three basic single-stage bipolar-junction-transistor (BJT) amplifier topologies, typically used as a voltage amplifier. It offers...
13 KB (1,536 words) - 21:40, 18 December 2023
holding voltage, the operational amplifier generates an "error signal", that is the difference between the command potential and the actual voltage of the...
26 KB (3,681 words) - 06:30, 11 January 2024
low pass, an AR envelope generator with switchable sustain, a voltage controlled amplifier, and a white noise generator. It also features a 32–step monophonic...
3 KB (206 words) - 06:37, 3 January 2022
components, consisting only of a voltage-controlled oscillator, voltage-controlled filter, a voltage-controlled amplifier and a low-frequency oscillator...
36 KB (3,242 words) - 22:23, 30 January 2024
the two amplifier outputs, bridging the output terminals. This doubles the available voltage swing at the load compared with the same amplifier used without...
15 KB (2,066 words) - 02:37, 1 September 2024
An error amplifier is most commonly encountered in feedback unidirectional voltage control circuits, where the sampled output voltage of the circuit under...
2 KB (222 words) - 00:24, 22 January 2022
A log amplifier, also known as logarithmic amplifier or logarithm amplifier or log amp, is an amplifier for which the output voltage Vout is K times the...
6 KB (807 words) - 08:51, 30 July 2024