emitter bias
51Resistor–transistor logic — (RTL) is a class of digital circuits built using resistors as the input network and bipolar junction transistors (BJTs) as switching devices. RTL is the earliest class of transistorized digital logic circuit used; other classes include… …
52Zener diode — A Zener diode is a type of diode that permits current in the forward direction like a normal diode, but also in the reverse direction if the voltage is larger than the breakdown voltage known as Zener knee voltage or Zener voltage . The device… …
53Terahertz time-domain spectroscopy — In physics, terahertz time domain spectroscopy (THz TDS) is a spectroscopic technique where a special generation and detection scheme is used to probe material properties with short pulses of terahertz radiation. The generation and detection… …
54Thermophotonics — (often abbreviated as TPX) is a concept for generating usable power from heat which shares some features of thermophotovoltaic(TPV) power generation. A TPX system consists of a light emitting diode (LED) (though other types of emitters are… …
55Return ratio — The return ratio of a dependent source in a linear electrical circuit is the negative of the ratio of the current (voltage) returned to the site of the dependent source to the current (voltage) of a replacement independent source. The terms loop… …
56United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
57Field-effect transistor — FET redirects here. For other uses, see FET (disambiguation). High power N channel field effect transistor The field effect transistor (FET) is a transistor that relies on an electric field to control the shape and hence the conductivity of a… …
58Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
59Gummel plot — In electronics, the Gummel plot is the combined plot of the electric currents I c and I b of a transistor vs. the base emitter voltage, V {be}, on a semi logarithmic scale. This plot is very useful in device characterization because it reflects… …
60Cascode — The cascode is a two stage amplifier composed of a transconductance amplifier followed by a current buffer. Compared to a single amplifier stage, this combination may have one or more of the following advantages: higher input output isolation,… …
