current waveform
81Amplitude — is the magnitude of change in the oscillating variable, with each oscillation, within an oscillating system. For instance, sound waves are oscillations in atmospheric pressure and their amplitudes are proportional to the change in pressure during …
82Hyperspace (science fiction) — Hyperspace is a fictional plot device sometimes used in science fiction. It is typically described as an alternate region of subspace co existing with our own universe which may be entered using an energy field or other device. Travel in… …
83Bernard Lown — Bernard Lown, M.D. (born June 7, 1921) [http://www.lownfoundation.org/content/view/87/83/ LownFoundation.org Dr. Bernard Lown] is the original developer of the defibrillator and is an internationally known peace activist. He was awarded the 1985… …
84Transformer types — Circuit symbols Transformer with two windings and iron core. Step down or step up transformer. The symbol shows which winding has more turns, but not usually the …
85electric generator — ▪ instrument Introduction also called dynamo, any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers. Generators also produce the… …
86Electrotherapy (cosmetic) — Cosmetic Electrotherapy micro current machine together with a selection of electrodes, made by Silver Fox (China) Cosmetic electrotherapy is a range of beauty treatments that uses low electric currents passed through the skin to produce several… …
87RLC circuit — A series RLC circuit: a resistor, inductor, and a capacitor An RLC circuit (or LCR circuit) is an electrical circuit consisting of a resistor, an inductor, and a capacitor, connected in series or in parallel. The RLC part of the name is due to… …
88Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …
89Audio power — Sound measurements Sound pressure p, SPL Particle velocity v, SVL Particle displacement ξ Sound intensity I, SIL Sound power Pac Sound power level SWL Sound energy Sound energy density …
90Active rectification — is a technique for improving efficiency of Diode Bridge rectifiers. It consists of replacing a diode with a transistor (usually a power MOSFET). Applications In Full Bridge Rectifiers, the voltage drop of a diode (typically around 0.7V for a… …
