Hi,
I am trying to build a led flashlight for astronomy.
The circuit has the following:
6v power supply, 3 ultrabright led's (1.8v, 30ma), 22 ohm resistor, and 1k pot for dimming (all in series).
The website that I got the information from suggests that a voltage regulator should ideally be used.
This site suggests a 7812 regulator for a 12v power supply, I used a L7806CV that I understood should be used for a 6v supply.
When I connect the circuit without the regulator the led's are MUCH brighter than when it is used.
I can build circuits, but I'm definitely not a designer. Would it be possible for someone to post a circuit with the regulator connected properly, the site that posted the info suggested two ways of connecting the chip, a voltage regulator and a current regulator, I think that I may have made a mistake with the layout.
Thanks for any advice, David
I am trying to build a led flashlight for astronomy.
The circuit has the following:
6v power supply, 3 ultrabright led's (1.8v, 30ma), 22 ohm resistor, and 1k pot for dimming (all in series).
The website that I got the information from suggests that a voltage regulator should ideally be used.
This site suggests a 7812 regulator for a 12v power supply, I used a L7806CV that I understood should be used for a 6v supply.
When I connect the circuit without the regulator the led's are MUCH brighter than when it is used.
I can build circuits, but I'm definitely not a designer. Would it be possible for someone to post a circuit with the regulator connected properly, the site that posted the info suggested two ways of connecting the chip, a voltage regulator and a current regulator, I think that I may have made a mistake with the layout.
Thanks for any advice, David