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Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
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Old 18th June 2017, 08:48 AM   #111
2 picoDumbs is offline 2 picoDumbs  Australia
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Wondering why Bob Cordell didn't do a better job.
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Old 18th June 2017, 09:00 AM   #112
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I have never managed to learn LTspice and I have even less of a clue to how time consumimg and resourse hungry parameter defining becomes. But I believe that R.Cordell has given away, completely free, an enormous data base that many of us here should be eternally grateful.
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Old 18th June 2017, 09:05 AM   #113
2 picoDumbs is offline 2 picoDumbs  Australia
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Certainly not ungreatful.
I'm hesitating whether to doubt the models or not.
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Old 3rd October 2017, 09:32 AM   #114
2 picoDumbs is offline 2 picoDumbs  Australia
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Default Caps arrived

Let the games begin
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File Type: jpg 20171003_192723.jpg (412.5 KB, 240 views)
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Old 3rd October 2017, 09:34 AM   #115
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nice caps, do you mind me asking where you got these?
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Old 3rd October 2017, 09:44 AM   #116
2 picoDumbs is offline 2 picoDumbs  Australia
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Digikey or mouser but they weren't in stock so had to place a bulk order.
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Old 3rd October 2017, 09:54 AM   #117
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I take it these are better than snap-ins for your purposes? They probably handle class A heat and ripple current a bit better.
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Old 3rd October 2017, 10:36 AM   #118
2 picoDumbs is offline 2 picoDumbs  Australia
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Gonna a build an extreme passive supply first as a reference point for the regulated supplies that will be tested later.
I'm a fan of the cave man approach to electronics. Haha

The big screw terminal caps tend to have much higher ripple current capacity and much lower esr. Also they go to much higher capacitance levels than snap-ins. The ones I purchased are 220,000uF each.
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Old 3rd October 2017, 10:38 AM   #119
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yeah, few microfarads is sledgehammer approach to passive supply
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Old 3rd October 2017, 10:42 AM   #120
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Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
everything under 1F per can is for sissies

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