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1 PROBLEM SET-6 (Direct Current Circuits) 1-(a
1 PROBLEM SET-6 (Direct Current Circuits) 1-(a

... 17- In Figure, suppose the switch has been closed for a time sufficiently long for the capacitor to become fully charged. Find (a) the steady-state current in each resistor and (b) the charge Q on the capacitor. (c) The switch is now opened at t = 0. Write an equation for the current IR2 through R2 ...
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S.C., D.M. Otten, T.A. Keim, and D.J. Perreault, “Design and Evaluation of a 42 V Automotive Alternator with Integrated Switched-Mode Rectifier,” 2007 IEEE Vehicle Power and Propulsion Conference , September 2007, pp. 250 – 258
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... C255 resonate at 27 MHz on the output of Q223. This output is fed into the gate of JFET mixer Q201. The source of Q201 is fed with local oscillator signal by Q206. The 10.200 MHz IF output of Q201 is fed through a delay network, consisting of L211, L214, C296, C297 and C258. The delay network is req ...
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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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