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  2. Voltage-controlled resistor - Wikipedia

    en.wikipedia.org/wiki/Voltage-controlled_resistor

    In the circuit on the figure, a non-linearized VCR design, the voltage-controlled resistor, the LSK489C JFET, is used as a programmable voltage divider. The VGS supply sets the level of the output resistance of the JFET. The drain-to-source resistance of the JFET (R DS) and the drain resistor (R 1) form the voltage-divider network. The output ...

  3. Field-effect transistor - Wikipedia

    en.wikipedia.org/wiki/Field-effect_transistor

    The first FET device to be successfully built was the junction field-effect transistor (JFET). [2] A JFET was first patented by Heinrich Welker in 1945. [4] The static induction transistor (SIT), a type of JFET with a short channel, was invented by Japanese engineers Jun-ichi Nishizawa and Y. Watanabe in 1950.

  4. Constant-current diode - Wikipedia

    en.wikipedia.org/wiki/Constant-current_diode

    Electric symbol. A constant-current diode is an electronic device that limits current to a maximal specified value for the device. It is known as a current-limiting diode (CLD) or current-regulating diode (CRD).

  5. Joule thief - Wikipedia

    en.wikipedia.org/wiki/Joule_thief

    The coil consists of a standard ferrite toroid core with two windings of 20 turns each using 0.15 mm (0.006 inch) diameter wire (38 swg) (34-35 AWG). The circuit can utilize an input voltage down to about 0.35 V and can run for weeks using a 1.5 V LR6/AA. The battery voltage is usually 1.5 V. The resistor is ~1 kΩ, 1/4 W.

  6. File:JFET N-Channel Labelled.svg - Wikipedia

    en.wikipedia.org/wiki/File:JFET_N-Channel...

    The following other wikis use this file: Usage on az.wikipedia.org MOY-Tranzistorlar; Yarımkeçirici cihazlar; Usage on ca.wikipedia.org Transistor

  7. JFET - Wikipedia

    en.wikipedia.org/wiki/JFET

    The junction field-effect transistor (JFET) is one of the simplest types of field-effect transistor. [1] JFETs are three-terminal semiconductor devices that can be used as electronically controlled switches or resistors , or to build amplifiers .

  8. File:N-channel JFET common gate.svg - Wikipedia

    en.wikipedia.org/wiki/File:N-channel_JFET_common...

    N-channel JFET common gate amplifier, with minimal external components. Date: ... This W3C-unspecified circuit diagram was created with the Electrical Symbols Library ...

  9. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...