boylesg
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As per the datasheet for ST L7812CT voltage regulator, I have wired up a high current voltage regulator. Except that I have used a BD140 rather than the tranny they specified because I don't believe that I need that much extra current. I have used their formulas to calculate the required resistance value and it comes out at about 8R however I have used 10R since I only had 0.25W resistors at 8.2R. The 10R resistor seems to work well enough.
But I want to understand how this works. If I have 24V going into the regulator then I have a sort of direct parallel connection between the 24V in and the 12V out through the transistor.
So what happens to the extra 12V as it passes through the transistor?
But I want to understand how this works. If I have 24V going into the regulator then I have a sort of direct parallel connection between the 24V in and the 12V out through the transistor.
So what happens to the extra 12V as it passes through the transistor?