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10th September 2005, 08:57 AM
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#2 |
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diyAudio Member
Join Date: Feb 2005
Location: leeuwarden, netherlands
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just build yourself a PSU...
look at the V & I characteristics of the part that interests you....read the graphs and see the ripple voltage/current .... give the part another value and look what happens to the graph.... you can also see what's going on inside the transformer and the diodes etc....
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emission over emittor |
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10th September 2005, 03:50 PM
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#3 |
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diyAudio Member
Join Date: May 2005
Location: Stittsville, Ontario, Canada
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The program uses the term "diff" for the maximum value - the minimum value of any sweep. If you want this to indicate ripple voltage then set up your sweep to start after the voltage has stabilized, ie capacitors all charged up, and then "diff" will indicate the peak to peak ripple. Basically you can see what is being measured on the display. If you do not wait for the voltage to stabilize, then the min voltage is 0, and "diff" is basically the outpput DC value plus peak ripple.
I think if you play around with it a bit you will see how the numbers relate to the graph.
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Robert McLean |
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10th September 2005, 03:53 PM
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#4 |
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diyAudio Member
Join Date: Dec 2003
Location: San Diego
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The abbreviations are all very straightforward. They refer directly to their counterparts in the schematic. E.g., V(Br1), would be voltage across the diode bridge, I(R1) would be current through resistor 1, etc.. Build a simple ps and check each parameter, one at a time. At the end of that, you're an expert.
Sheldon |
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13th September 2005, 06:27 PM
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#5 | |
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diyAudio Member
Join Date: Apr 2004
Location: Philly
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Quote:
AWESOME! That is what I needed to know. I thought you had to guess at it from the graph. |
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