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  2. Negative resistance - Wikipedia

    en.wikipedia.org/wiki/Negative_resistance

    In general, a negative differential resistance is a two-terminal component which can amplify, 2 7 converting DC power applied to its terminals to AC output power to amplify an AC signal applied to the same terminals. 8 9 They are used in electronic oscillators and amplifiers, 10 particularly at microwave frequencies.

  3. Domino logic - Wikipedia

    en.wikipedia.org/wiki/Domino_logic

    Domino logic. General domino logic implementation, with the pull-down network symbolising a network of NMOS transistors. [1] Domino logic is a CMOS -based evolution of dynamic logic techniques consisting of a dynamic logic gate cascaded into a static CMOS inverter. [2] The term derives from the fact that in domino logic, each stage ripples the ...

  4. CMOS - Wikipedia

    en.wikipedia.org/wiki/CMOS

    CMOS inverter (a NOT logic gate). Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", / s iː m ɑː s /, /-ɒ s /) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. [1]

  5. Liquid-crystal display - Wikipedia

    en.wikipedia.org/wiki/Liquid-crystal_display

    A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly [1] but instead use a backlight or reflector to produce images in color or monochrome.

  6. Light-emitting diode physics - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode_physics

    A LED is a long-lived light source, but certain mechanisms can cause slow loss of efficiency of the device or sudden failure. The wavelength of the light emitted is a function of the band gap of the semiconductor material used; materials such as gallium arsenide , and others , with various trace doping elements , are used to produce different ...

  7. PMOS logic - Wikipedia

    en.wikipedia.org/wiki/PMOS_logic

    PMOS clock IC, 1974. PMOS or pMOS logic (from p-channel metal–oxide–semiconductor) is a family of digital circuits based on p-channel, enhancement mode metal–oxide–semiconductor field-effect transistors (MOSFETs). In the late 1960s and early 1970s, PMOS logic was the dominant semiconductor technology for large-scale integrated circuits ...

  8. LED circuit - Wikipedia

    en.wikipedia.org/wiki/LED_circuit

    In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED. The voltage drop across a lit LED is approximately constant over a wide range of ...

  9. Emitter-coupled logic - Wikipedia

    en.wikipedia.org/wiki/Emitter-coupled_logic

    Low-voltage positive emitter-coupled logic (LVPECL) is a power-optimized version of PECL, using a positive 3.3 V instead of 5 V supply. PECL and LVPECL are differential-signaling systems and are mainly used in high-speed and clock-distribution circuits. A common misconception is that PECL devices are slightly different from ECL devices.