voltage-controlled negative resistance
41Electronic circuit — The die from an Intel 8742, an 8 bit microcontroller that includes a CPU, 128 bytes of RAM, 2048 bytes of EPROM, and I/O in the same chip …
42Electronic component — Various components An electronic component is a basic electronic element and may be available in a discrete form having two or more electrical terminals (or leads). These are intended to be connected together, usually by soldering to a printed… …
43optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
44Zener 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… …
45List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …
46Unijunction transistor — Unijunction transistors Circuit symbol A unijun …
47Insulin — This article is about the insulin protein. For uses of insulin in treating diabetes, see insulin therapy. Not to be confused with inulin. Insulin Computer generated image of six insulin molecules assembled in a hexamer, highlighting the threefold …
48Sallen–Key filter — A Sallen–Key filter is a type of active filter, particularly valued for its simplicity. The circuit produces a 2 pole (12 dB/octave) lowpass or highpass response using two resistors, two capacitors and (usually) a unity gain buffer amplifier.… …
49All-pass filter — An all pass filter is an electronic filter that passes all frequencies equally, but changes the phase relationship between various frequencies. It does this by varying its propagation delay with frequency. Generally, the filter is described by… …
50Organic electronics — Melanin voltage controlled switch, an active organic polymer electronic device from 1974. In Smithsonian collection[1] Organic electronics, plastic electronics or polymer electronics, is a branch of electronics dealing with conductive polymers,… …
