buffer amplifier

(redirected from Voltage follower)

buffer amplifier

[¦bəf·ər ′am·plə‚fī·ər]
(electronics)
An amplifier used after an oscillator or other critical stage to isolate it from the effects of load impedance variations in subsequent stages. Also known as buffer; buffer stage.

buffer amplifier

An analog device that is typically used for impedance matching and signal isolation. For example, a sound card typically uses buffer amps at most of its input and output ports.
References in periodicals archive ?
The voltage follower within the voltage-controlled resistor is designed similar to that in [12], but with MOSFETs only.
For voltage control voltage follower approach is used.
Lee, "Universal voltage-mode filter with three inputs and one output using three current conveyors and one voltage follower," Electronics Letters, vol.
The input stage source follower has been replaced with a flipped voltage follower (FVF) cell.
Given the long-term connection between the battery management system and the 13th cell, we designed a voltage follower based on the op amp, which can improve the input impedance and reduce leakage current, to avoid excessive power consumption.
Output voltage regulation, bandwidth, transient response and noise (40|iVrms) remain independent of output voltage due to the device's unity gain voltage follower architecture.
Development of Single Transistor-Control LDO Based on Flipped Voltage Follower for SoC.
4 [15], where transistors [M.sub.19]-[M.sub.22] and current source [I.sub.C] form a voltage follower stage, which forces the voltage at port X to follow the voltage at port Y, i.e.
Since the input impedance of the proposed circuit is not high, voltage follower is needed while cascading the proposed circuit to the next stages.
5) is implemented with two integrated circuits, the LM393 voltage comparator and the LM358 operational amplifier configured as a voltage follower, also used a 2N5064 SCR and a HG4138 relay supporting up to 15 A in their contacts.
Linear Technology's (Milpitas, CA) LT3082 200 mA PNP low dropout regulator (LDO) features a new architecture using a cur rent reference and voltage follower. Features include:
The second stage is a voltage follower for the load resistor ([R.sub.L]) that works as a current source for the serially connected LEDs.