high-frequency switching

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• Switching amplifier — A switching amplifier or class D amplifier is an electronic amplifier which, in contrast to the active resistance used in linear mode AB class amplifiers, uses switching mode of transistor to regulate power delivery. The amplifier, therefore,… …   Wikipedia

• Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… …   Wikipedia

• Frequency synthesizer — A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie… …   Wikipedia

• High-fructose corn syrup — (HFCS) is any of a group of corn syrups that has undergone enzymatic processing to increase its fructose content, and is then mixed with pure corn syrup (100% glucose), becoming a high fructose corn syrup; the types are: HFCS 90 (mostly for… …   Wikipedia

• High-voltage direct current — HVDC or high voltage, direct current electric power transmission systems contrast with the more common alternating current systems as a means for the bulk transmission of electrical power. The modern form of HVDC transmission uses technology… …   Wikipedia

• High-Definition Multimedia Interface — Infobox connector name=High Definition Multimedia Interface type=Digital audio/video connector logo= caption=HDMI cable and HDMI official logo designer=HDMI Founders design date=December 2002 manufacturer=HDMI Adopters production date=2003… …   Wikipedia

• Frequency changer — A frequency changer or frequency converter is an electronic device that converts alternating current (AC) of one frequency to alternating current of another frequency. The device may also change the voltage, but if it does, that is incidental to… …   Wikipedia

• Frequency Division Multiple Access — Multiplexverfahren (lat. multiplex „vielfach, vielfältig“) sind Methoden zur Signal und Nachrichtenübertragung, bei denen mehrere Signale zusammengefasst (gebündelt) und simultan über ein Medium (Leitung, Kabel oder Funkstrecke) übertragen werden …   Deutsch Wikipedia

• Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …   Wikipedia

• Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… …   Wikipedia

• Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… …   Wikipedia