by 4-CHANNEL » Sun Jun 08, 2008 8:05 pm
I think just use a zener diode to regulate the voltage is not that practical, with the current limited resistor, you only get a very little current enough for voltage reference, not enough to drive anything.
The best way suggested to do is by adding a series passing transistor, thus could avoid excess heat and lost of power. I think it's difficult to find a 20W zener with the desired voltage. Yellow_Light_Colorz_PDT_12 Yellow_Light_Colorz_PDT_12 Yellow_Light_Colorz_PDT_12
SUGGESTION IS FOR REFERENCE ONLY.