GatorGnet
New Member
In this programmer schematic, it uses a zener diode to drop the voltage down from 12v to 5. In an effort to better understand how things work I have to ask how this works. Pin 14 is supplied the 12v directly after a 220 resistor but a 5.1 zener is connected as well then to ground. How does this drop down the 12 volts?
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**broken link removed**
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