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BP5062A
BP5062A

... Evaluate under actual operating conditions. In the absolute maximum ratings, the reverse peak voltage should be 400V or higher, the average rectifying current should be 1A or higher, and the peak surge current should be 40A or higher. (Full-wave rectification can be used.) Coil for switching regulat ...
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Discussion Question 11B

... If the AC generator weren’t present, our circuit would be a plain old undriven LC circuit with some resistance R thrown in. It would support a nice oscillating current of frequency ω0 = 1/√LC… except the resistor would damp out the oscillations over time. To keep the circuit going, we attach the gen ...
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... Turn the switch ON and unhook the ground. Measure changes in amps and volts. Leave the switch ON and hook the ground back up, disconnect connector C and measure changes in amps and volts. How can you use a voltmeter to locate an open (defective) ground or connection? ...
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... power supply. SCRs convert three phase AC power from a transformer directly to DC. They require huge capacitor banks and large transformers. SCRs are large and powerful and are used for high amp PAC systems but are not well suited for handheld systems. Switchmode. Switchmode power supplies use trans ...
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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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