phase switching

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• Phase (waves) — Phase in waves is the fraction of a wave cycle which has elapsed relative to an arbitrary point.[1] Contents 1 Formula 2 Phase shift 3 Phase difference …   Wikipedia

• Phase fired controllers — Phase control (PFC), also called phase cutting, is a method of pulse width modulation (PWM) for power limiting, applied to AC voltages. It works by modulating a thyristor, SCR, triac, thyratron, or other such gated diode like devices into and out …   Wikipedia

• Phase compensation — is the correction of phase error (i.e., the difference between the actually needed phase and the obtained phase). A phase compensation is required to obtain stability in an opamp. A capacitor/RC network is usually used in the phase compensation… …   Wikipedia

• Phase-change random access memory — (Abk.: PCRAM oder PRAM, in einer speziellen Ausführung auch „Ovonics Unified Memory“, OUM, oder „chalcogenide RAM“, C RAM) ist ein neuartiger nicht flüchtiger Speicher in der Elektronik (Stand 2009). Das Wirkprinzip des Speichers ist die Änderung …   Deutsch Wikipedia

• Phase variation — is an immune evasion technique employed by various types of bacteria, including Salmonella species. It involves the switching of surface antigens, to evade specific adaptive immune system responses. Salmonella use this technique to switch between …   Wikipedia

• Phase-change memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile …   Wikipedia

• 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

• Phase shift module — A phase shifter is a microwave network which provides a controllable phase shift of the RF signal [Microwave Solid State Circuit Design, 2nd Ed., by Inder Bahl and Prakash Bhartia, John Wiley Sons, 2003 (Chapter 12)‏] [RF MEMS Theory, Design and… …   Wikipedia

• Phase of play — Phases of play are parts of a chess problem which happen, as it were, concurrently rather than consecutively.Each problem has at least one phase: the post key play or actual play ; that is, the play after the key (the first move which leads to… …   Wikipedia

• Phase switch — A phase switch is a device used to increase the discrimination and sensitivity of an interferometer, especially at radio frequencies; an extra half wave path difference is switched in, at well defined frequency, between the two interfering signal …   Wikipedia

• Noncovalent solid-phase organic synthesis — or NC SPOS is a form of Solid phase synthesis whereby the organic substrate is bonded to the solid phase not by a covalent bond but by other chemical interactions. This bond may consist of an induced dipole interaction between a hydrophobic… …   Wikipedia