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Test 5 Solution - Name Student Number Test 5(Makeup Class B...

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Unformatted text preview: Name: Student Number: Test 5 (Makeup), Class B Power Amplifier Tuesday 27 April at 7:30—7:45pm. A class B power amplifier operates from a supply voltage of 18V and delivers a maximum unclipped output power of 25W. Given the following equations, 1 m ICP ICC— ? I] CP sin(cot)da)t =— 0 PS 2 ICCVCC : [CPI/CC 7T _ R T/2 2 IépR'L PL : 7L— flICP sin(a)t)] dwt = 4 0 At the maximum unclipped output power of 25W, determine the DC collector current, supply power and efficiency. (Hint: to determine RC you will need to find F: (max) in terms of VCZC ) 1/ ,1 _ at ”.i Etna/1X); 4:2): ":2? 233W ’ 42, 1:.) ,QL- Ell/J2. _ t/C 13 Ia? " C4, : 37% 55‘ em ...
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