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CCNA 1 v3.0
CCNA 1 v3.0

... within a LAN environment? ...
Mohamed Moenes Mohamed Salama _PAPER_03 ESTIMATING
Mohamed Moenes Mohamed Salama _PAPER_03 ESTIMATING

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... Mandatory Discharge of the DUT Since the DC tester charges up the breaker panel to the test voltage, the DUT needs to be discharged before the test is finished. Failing to do this will result in an energized panel. This is specially important if your tester does not have an automatic discharge featu ...
RT8300 - Richtek
RT8300 - Richtek

... The RT8300 provides four channel constant currents with less than 3% differences in output current value among the 4-CH and ICs respectively. The constant current output is adjustable from 5mA to 150mA via an external resistor (RISET). The LED brightness can also be adjusted via the PWMI pin with pu ...
TS12001 - Silicon Labs
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... device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to make changes without further notice and limitation to product information, specifications, and des ...
Bipolar Junction Transistor (BJT) Modeling
Bipolar Junction Transistor (BJT) Modeling

... 1. Simulate the output characteristics (IC versus VCE) of an NPN BJT (2N3904) using PSpice. In so doing, apply a fixed base current IB, i.e., a current source, and sweep the collector voltage from 0 to 10V while the emitter remains grounded. Use the following 5 values for the base current IB: 2µA, 4 ...
CAPACITOR PRESENTATION MATERIALS
CAPACITOR PRESENTATION MATERIALS

... itself over a period due to the expansion and contraction created by the electric heat. FRAKO Capacitor’s spring also acts as an Inductor to suppress the in-rush current which the capacitor will experience during switching ON. ...
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1W Audio Power Amplifier with Shutdown Mode

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University of North Carolina-Charlotte Department of Electrical and Computer Engineering

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... HV Electrode: 5 – 9KV (test kit places a load on HV module so lower readings are expected) HF Electrode: 500 – 800 Vrms (nominal 650 Vrms) Because of loading, the actual voltage present on the electrode screen assembly will be higher when the test kit is not connected. The voltage ranges listed abov ...
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bass extension for surround sound

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Data Sheet - KB Electronics

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MVP D-TEK Multi Voltage Power 9V to 220V AC/DC Vehicle Detector
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... Transformer isolation, lightning and transient protection (1) 20 – 2000 uH Q-factor of 5 or higher Automatic on reset or power up Automatic for environmental changes Height 3.25” (83mm) Width 2.56” (40mm) Length 3.65” (90mm) Extruded Anodized Aluminum 86CP11 11 pin male ...
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... P = i2 R = (Imax sin 2ƒt)2 R where i is the instantaneous current the heating effect produced by an AC current with a maximum value of Imax is not the same as that of a DC current of the same value The maximum current occurs for a small amount of time ...
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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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