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  1. Robertc65

    Reduce output Voltage of Power Supply

    Thanks again for the replies. Based on the advise given I'll shelf the voltage divider idea. If I find a schematic for the Compaq supply I'll post it. Thanks Rob
  2. Robertc65

    Reduce output Voltage of Power Supply

    Thanks to the both of you for the detailed response. Doing this on the outside of the supply just doesn't sound like a wise plan. I'll see if I can dig up a schematic. I didn't realize that a switching supply was so sensitive. Taking this Compaq supply put of the mix, would the voltage divider...
  3. Robertc65

    Reduce output Voltage of Power Supply

    I understand what you are saying. The switching supply will try to maintain the 18V output depending on the load. What if I were to connect two say 1K resitors in series across the output leads then connect the + side of the camera to the junction of the two resistors and the - side to GND...
  4. Robertc65

    Reduce output Voltage of Power Supply

    I have a bunch of old Compaq Laptop power supplies that output 18.5V at 2.7 Amps. I would like to be able to use these power supplies to power items that require a lower voltage. For example I have a small camera that requires 12Volts @ 200ma. Is there a simple way to (maybe a resistor across...
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