Compared with modern designs SETs adopt a minimalist approach, and often have just two stages, a single stage triode voltage amplifier followed by a triode power stage.
22.
In the second case " R S " m " and the Th�venin representation of the source is useful, producing the second form for the gain, typical of voltage amplifiers.
23.
Some of Widlar's designs mentioned by Swanson and Hodgson, like the LM12 power amplifier and the LM10 ultra-low-voltage amplifier introduced in 1978, remain in production in the 21st century.
24.
For example, in an application like this one where voltage is the output, a g-equivalent two-port could be selected for simplicity, as it uses a voltage amplifier in the output port.
25.
Practically speaking, this large of an electric field can only be achieved if the electrode spacing is very small ( ~ O ( 0.1 mm ) ) or if a high-voltage amplifier is available.
26.
Even though the conductive channel formed by gate-to-source voltage no longer connects source to drain during saturation mode, constant-current source rather than as a resistor, and can effectively be used as a voltage amplifier.
27.
In electronics, a "'common base "'( also known as "'grounded-base "') amplifier is one of three basic single-stage bipolar junction transistor ( BJT ) amplifier topologies, typically used as a current buffer or voltage amplifier.
28.
Because this technique creates a very low input offset voltage amplifier, and because this input offset voltage does not change much with time and temperature, these techniques are also called " zero-drift " amplifiers ( because there is no drift in input offset voltage with time and temperature ).
29.
Usually, a voltage amplifier with gain of A _ V = K serves as such a linear network, but also other devices can play this role : a man and a potentiometer in a potentiometric null-balance meter, an electromechanical integrator ( servomechanisms using potentiometric feedback sensors ), etc.
30.
In the case of the voltage amplifier, the output voltage ? " V " out of the feedback network is applied in series and with an opposite polarity to the input voltage " V x " travelling over the loop ( but in respect to ground, the polarities are the same ).
