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Old 6th October 2011, 05:26 PM   #461
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The remote sensing twisted pairs. Which pairs are twisted? Is it +F with 0 and +S with 0?
I know it might not seem like it but I really am reading Salas construction guide--steep learning curve. Your patience is appreciated.

Chris
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Old 6th October 2011, 05:27 PM   #462
Salas is online now Salas  Greece
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Did you read the guide?

P.S. OK I see you are reading it. F twisted together, S twisted together. If for just 30mA load, use 8R2 R101, 3 green leds.
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Old 6th October 2011, 05:31 PM   #463
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Quote:
Originally Posted by Backbones View Post
Many thanks.
I see that Schottky diodes are not recommended. Is it the price or another reason?
Chris
Isn't the price, is the kind of diode.

Felipe
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Old 6th October 2011, 05:39 PM   #464
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Quote:
Originally Posted by Salas View Post
Did you read the guide?

P.S. OK I see you are reading it. F twisted together, S twisted together. If for just 30mA load, use 8R2 R101, 3 green leds.
Thanks Salas. R101 is 2W then (reading appendix 7).
Chris
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Old 6th October 2011, 05:41 PM   #465
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Yes in your case it will be plenty enough. Use one led, 1k resistor, 3k trimmer in the voltage section, all unused positions jumper.
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Old 6th October 2011, 05:50 PM   #466
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Many thanks. I feel real progress has been made today. I am currently using an SPower regulator in this circuit and it will be interesting to compare.
Chris
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Old 7th October 2011, 10:28 AM   #467
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The dummy load resistor value to be used for testing. Is there a preferred value resistance for this assuming 12V output and a current draw of 0.03A? Do I calculate it from Ohm's law? I can see 5W power rating should be enough.
Chris
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Old 7th October 2011, 10:39 AM   #468
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A 390R would simulate your 30mA load draw at 12V. But anything form 330R to 470R would serve the purpose. Your consumption and voltage range is low, so even a 2W dummy would do. The idea is to test a reg for target use, set it, without chance of jeopardizing a real circuit as load while tweaking.
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Old 7th October 2011, 10:44 AM   #469
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Many thanks.
Has anyone been using the reg for BA-2 front end do we know?
Chris
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Old 7th October 2011, 10:54 AM   #470
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Not yet.
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