LM317T Voltage regulator hookup question

evotec1 said:

here is the information I am looking at, in his diagram, I understand what is going on, except for the part near the right side labeled "(-) return" .

Does this negative go to ground?

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evotec1 said:

... and as for adding a capacitor, what IS transient response?

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evotec1 said:

**broken link removed**

here is the information I am looking at, in his diagram, I understand what is going on, except for the part near the right side labeled "(-) return" .

I you follow that (-) return line all the way to the left in your posted drawing you will see the 'ground' symbol, looks kind of like a upside down tree.

Now this 'ground' may not mean that it actual goes to earth ground somehow, but it could. What it really means is that the (-) side is hooked to the 'circuit common' and all other voltages are referenced to this common. When a voltage lead is labled say +12 in means a positive 12 volts referenced to circuit common. Again that common may or may not be to 'earth ground' potential, but that is another topic in it's self.
Clear?

Lefty

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