Tim Leishman

Previous Article in this series The prerequisite for this article can be read here: Unregulated Fullwave Center-Tapped Filtered Power Supply Given Given: Vpri = 120v & 60Hz, Turns ratio = 4:1, C1 = 10uF, RL = 10K Ohms Calculate Primary Voltage Start by converting the primary RMS voltage to Peak voltage.$$Vpeak_{Primary}=frac{V_{RMS}}{0.707}$$$$Vpeak_{Primary}=frac{120V_{RMS}}{0.707}$$$$Vpeak_{Primary}=169.731vp$$  Primary Peak to Peak …

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Introduction This is the first in a series of Power Supply articles I am working on. Each will evolve in complexity, function, and practical application. Before starting power supply experiments, review and follow electrical safety procedures. Here is a short article I wrote on Electrical Safety. Given Given: Vpri = 120v 60Hz, Turns ratio = …

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Safety First The wall outlet at your house is 120-volt rms. 120vrms is dangerous. The circuit breaker at your house, which acts like a safety switch turning off the voltage when a maximum current has been exceeded, has a maximum current rating of 15 to 20 amps. Death can occur from as low as 100mA …

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