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Electronics Power Supply, Lecture notes of Electronics

Tshwane University of TechnologyElectronics

Lecture notes of power supply.

Typology: Lecture notes

2017/2018

Uploaded on 01/31/2018

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Power Supplies and Linear Regulators Our objective is to examine characteristics, schematics, analysis, design and limitations of practical power supplies with IC regulators. You should refer to Chapter 6 in H & H for background on this material. The D.C. power supply block diagram: ag La. 2 = ac ac 1s Vac voltage a ae) de Filtering Regulation Load This is a 100 Vac “line" voltage waveform. Common line voltage values are: 110, 115, 120, 125. What line voltage do we have in the lab? +2000 +1414 Toavan Note that 2004 60Hz the period : is 167 ms. s é ° Look for T AC VOLTAGE ° “= this in your circuits -100.0-4 this semester I! 144.4 1 1 i+ 1/60 (0.167) SEC. ~ 200.0 4 ma Remember: V,, = V2V,,,=1.414-V,,, Material from Prof. Prescott