diode series resistance
91Buck-boost converter — Two different topologies are called buck boost converter. * The inverting topology The output voltage is of the opposite polarity as the input * A Buck (step down) converter followed by a Boost (step up) converter The output voltage is of the… …
92spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …
93Varistor — A 385 volt metal oxide varistor A varistor is an electronic component with a diode like nonlinear current–voltage characteristic. The name is a portmanteau of variable resistor. Varistors are often used to protect circuits against excessive… …
94PHOTOPILES SOLAIRES — Les crises successives du pétrole (avec un prix du baril multiplié par 5 en 1973 pour retomber de moitié en 1981) et l’accroissement continuel de la demande d’énergie dans tous les pays du monde (qui suit une loi inexorablement linéaire en… …
95Amplificateur opérationnel — Pour les articles homonymes, voir Amplificateur. Des amplificateurs opérationnels …
96Montages de base de l'amplificateur opérationnel — La représentation électrique d un amplificateur opérationnel varie suivant les pays Les applications de l amplificateur opérationnel sont divisées en deux grandes catégories suivant la nature de la réaction : Si elle s opère sur l entrée… …
97Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
98Thermostat — This article is about the temperature regulating device. For the French cooking oven temperature scale, see Gas Mark#Other cooking temperature scales. Honeywell s iconic The Round model T87 thermostat, one of which is in the Smithsonian …
99Valve amplifier — A valve amplifier or tube amplifier is a type of electronic amplifier that make use of vacuum tubes instead of solid state semiconductor devices (such as transistors). As any other electronic amplifier they serve to increase the power and/or… …
100Electrical network — For electrical power transmission grids and distribution networks, see Grid (electricity). A simple electric circuit made up of a voltage source and a resistor. Here, V = iR, according to Ohm s Law. An electrical network is an interconnection of… …
