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15th November 2007, 12:15 PM
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HELP Needed in Audio Amp Design... Please
I study in Level 3 Electronics Engineering. Looking forward to get my BS'c Degree..
We are having this module called "Electronic Design-1" this semester... And the major assignment is An Audio Amplifier... I attached the Assignment question paper in the PDF file… And all the calculation I did to get the values of the resistors and capacitors… The tutor said that they seem to be right… I need help, to get the right procedure to calculate the values and do the simulation to get the closest values comparing between the theoretical and the hardware design which I have to do only for the cascade amplifier, hardware fabrication is not needed for the Power amplifier section… Also i attached what I have drawn in Orcad 10.5... I want some1 to help me getting the values of the R1, R2, R3, R4, RE1, RC and RL. The tutor told me that RL will be same as R in Base of the Power Amplifier… I hope I can get help here…. Thanks… I will Appreciate it so much for the one who will help me... I attached the assignment paper, the calculation I did, the diagram of the amplifier (CE & CB), and also I attached a similar problem he gave us in the class… And this is My MSN Messenger... Who wants to help me, add me and ill explain more... Smo0or@hotmail.com
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With All My Love ..... |
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15th November 2007, 12:25 PM
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I hope level 3 is the entry year? - this simple cascode amplifier is more school work than university work?.
One quick hint for you - think about the collector voltage on the bottom transistor - do you think it being LESS than it's base is a good idea?. |
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15th November 2007, 12:29 PM
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My dear... can u add me in MSN...
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With All My Love ..... |
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15th November 2007, 12:31 PM
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15th November 2007, 08:31 PM
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Any1 to help???
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With All My Love ..... |
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15th November 2007, 11:10 PM
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Your assignment is posted here too??
I reduced the enormous size of your schematic and made construcive comments about the transistors' base voltages on the other website. Your first document was damaged there and I couldn't open it. Here it shows a microphone with a whopping high output of 220mV RMS. Do Arabs scream that loud??
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Uncle $crooge |
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16th November 2007, 09:36 AM
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May I just say Audioguru, that's a MUCH better way to draw a cascode amplifier!.
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16th November 2007, 04:53 PM
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I don't know why the schematic is so big. I cropped it.
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Uncle $crooge |
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