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  2. Touch switch - Wikipedia

    en.wikipedia.org/wiki/Touch_switch

    Video demonstrating the operation of a touch-sensitive lamp A touch-sensitive lamp is a combination of a lamp and a touch switch. They act on the principle of body capacitance, activated by human touch rather than a flip, push-button, or other mechanical switch. They are popular as desk and nightstand lamps. Touch-sensitive lamp switches may be ...

  3. Touch-sensitive lamp - Wikipedia

    en.wikipedia.org/wiki/Touch-sensitive_lamp

    Video demonstrating the operation of a touch-sensitive lamp. A touch-sensitive lamp is a combination of a lamp and a touch switch. They act on the principle of body capacitance, activated by human touch rather than a flip, push-button, or other mechanical switch. They are popular as desk and nightstand lamps. Touch-sensitive lamp switches may ...

  4. TL431 - Wikipedia

    en.wikipedia.org/wiki/TL431

    The typical initial deviation of reference voltage from the nominal 2.495 V level is measured in millivolts, the maximum worst-case deviation is measured in tens of millivolts. The circuit can control power transistors directly; combinations of the TL431 with power MOS transistors are used in high efficiency, very low dropout linear regulators.

  5. 2N7000 - Wikipedia

    en.wikipedia.org/wiki/2N7000

    A typical use of these transistors is as a switch for moderate voltages and currents, including as drivers for small lamps, motors, and relays. [1] In switching circuits, these FETs can be used much like bipolar junction transistors, but have some advantages: high input impedance of the insulated gate means almost no gate current is required

  6. List of 4000-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_4000-series...

    The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...

  7. Emitter-coupled logic - Wikipedia

    en.wikipedia.org/wiki/Emitter-coupled_logic

    In electronics, emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family. ECL uses an overdriven bipolar junction transistor (BJT) differential amplifier with single-ended input and limited emitter current to avoid the saturated (fully on) region of operation and the resulting slow turn-off behavior. [ 2 ]

  8. US FDA proposes standardized testing to detect asbestos in ...

    www.aol.com/news/us-fda-proposes-standardized...

    In its proposed rule, the FDA would require manufacturers to test a sample of each batch of a talc-containing cosmetic product for asbestos by using methods such as polarized light and ...

  9. Diode–transistor logic - Wikipedia

    en.wikipedia.org/wiki/Diode–transistor_logic

    Diode–transistor logic (DTL) is a class of digital circuits that is the direct ancestor of transistortransistor logic. It is called so because the logic gating functions AND and OR are performed by diode logic , while logical inversion (NOT) and amplification (providing signal restoration) is performed by a transistor (in contrast with ...