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Impedance Matching
Impedance Matching

... Reflected power results when the load impedance is not matched to the generator’s requirements. Load power is the amount of power that is actually delivered to the load; in most cases, this is accepted as being equal to the forward power minus the reflected power. Some generators accurately measure ...
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SIGC16T120C IGBT Chip in NPT-technology

... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Inf ...
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High-Voltage Circuit Breakers

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Communication Tests and Measurements

... conditions, but power measurements are far more common at higher frequencies, particularly microwave. In testing and troubleshooting communication equipment, you will still use a dc voltmeter to check power supplies and other dc conditions. There are also occasions when measurement of RF, that is, a ...
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Current Tunable Quadrature Oscillator Using Only CCCDBAs and Grounded Capacitors
Current Tunable Quadrature Oscillator Using Only CCCDBAs and Grounded Capacitors

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... Where S(ω) = power spectrum and R(τ) = autocorrelation function For the (digital) autocorrelation function estimation, the digitized signal is delayed in a number of discrete steps, and the delayed samples are multiplied with an un-delayed version of the same signal. The products from the multiplica ...
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low voltage transformers

... Transformers up to 35 KVA shall be no more than 40 decibels. Transformers 36 KVA or more shall be a minimum of 5 decibels below NEMA standards per unit. Transformers shall be provided with vibration dampers consisting of Korfund spring loaded shock mounts and Elastorib sheeting. Size and number of s ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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