A linear amplifier is an electronic circuit whose output is proportional to its input, but capable of delivering more power into a load. The term usually...

usually MOSFETs) operate as electronic switches, and not as linear gain devices as in other amplifiers. They operate by rapidly switching back and forth between...

An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or...

efficiency, linearity and other characteristics. Broadly, as you go up the alphabet, the amplifiers become more efficient but less linear, and the reduced...

An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output...

signal the amplifier (transistor or vacuum tube) where current is conducting. Class-A, class-AB and class-B are considered the linear amplifier classes in...

Phase Linear was an audio equipment manufacturer founded by Bob Carver and Steve Johnston in 1970. While primarily known as a power amplifier company...

steep and approximately linear, a properly-biased CMOS inverter digital logic gate may be used as a high-gain analog linear amplifier or even combined to...

which it differs from an ideal linear amplifier by more than 1 dB. So a larger 1-dB compression point means that the amplifier can produce larger outputs...

A log amplifier, which may spell log as logarithmic or logarithm and which may abbreviate amplifier as amp or be termed as a converter, is an electronic...

A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Low to medium...

linear equipment is a high fidelity audio amplifier, which must amplify a signal without changing its waveform. Others are linear filters, and linear...

a standard operational amplifier outputs a voltage. The OTA is usually used "open-loop"; without negative feedback in linear applications. This is possible...

The Williamson amplifier is a four-stage, push-pull, Class A triode-output valve audio power amplifier designed by D. T. N. Williamson during World War...

In electronics, a buffer amplifier is a unity gain amplifier that copies a signal from one circuit to another while transforming its electrical impedance...

reduces distortion. Most audio amplifiers are linear amplifiers operating in class AB. Until the 1970s, most amplifiers used vacuum tubes. During the 1970s...

Palace. In June 1937, Blumlein patented what is now known as the Ultra-Linear amplifier (US Patent 2,218,902, dated 5 June 1937). A deceptively simple design...

noise and linearity, among others listed in this article. Figures of merit are important for determining the suitability of a particular amplifier for an...

for weakly nonlinear systems and devices, for example receivers, linear amplifiers and mixers. It is based on the idea that the device nonlinearity can...

trades gain for higher linearity (reducing distortion) and can provide other benefits. If not designed correctly, amplifiers with negative feedback can...

when the circuit design allows. In simple configurations, such as linear amplifiers, a CFA can be used in place of a VFA with no circuit modifications...

the linear phase-invariant amplifier. The linear amplifier has an advantage over the multi-mode amplifier: if several modes of a linear amplifier are...

transimpedance amplifier (TIA) is a current to voltage converter, almost exclusively implemented with one or more operational amplifiers. The TIA can be...

In signal processing, linearizers are electronic circuits which improve the non-linear behaviour of amplifiers to increase efficiency and maximum output...

of the term "Ultra Linear" to the conditions where the dynamic plate characteristic curves are most linear". The "QUAD II" amplifier from QUAD uses a circuit...

Electric product line, the eponymous electronic device was operated as a linear amplifier with a driver which was modulated. In the 50,000-watt implementation...

electrical circuit consisting of resistors, capacitors, inductors and linear amplifiers. Linear time-invariant system theory is also used in image processing...

A push–pull amplifier is a type of electronic circuit that uses a pair of active devices that alternately supply current to, or absorb current from, a...

This article illustrates some typical operational amplifier applications. Operational amplifiers are optimised for use with negative feedback, and this...

A valve audio amplifier (UK) or vacuum tube audio amplifier (US) is a valve amplifier used for sound reinforcement, sound recording and reproduction....