I'm in the process of prototyping a steam turbine project. It will power a desk lamp. Designing and milling is not a problem but it's been about 13 years since my last electronics class. I need some help getting back on the horse.
I am trying to power 3 banks of LED's. (2) 30 LED (1) 6 HPLED. The only specs I can get from where I purchased them from are that they are 12v. No resistance or wattage to speak of. Each set of 30 LEDs has (10) resistors marked 131 which I've found to be 130Ω. The HPLED's have no markings that I can see. I can't identify how the individual LEDS are connected. It appears to be a combination of series AND parallel.
They all work fine when I hook them up to a breadboard with (2) 6V batteries hooked in series.
The problem is that I'm going to be running them from a generator. I have a ton of motors ranging from 9v-50v. I'm looking at about 4-6000 rpm on the turbine which will drive the motor.
My questions are:
Any help/suggestions would be greatly appreciated.
Useful Links to the components I'm using:
http://www.tmart.com/1210-30-Led-Interior-Car-Light-Bulbs-White_p143161.html
http://www.tmart.com/6-SMD-LED-Car-Interior-Dome-Door-Light-Lamp-White_p85819.html
I am trying to power 3 banks of LED's. (2) 30 LED (1) 6 HPLED. The only specs I can get from where I purchased them from are that they are 12v. No resistance or wattage to speak of. Each set of 30 LEDs has (10) resistors marked 131 which I've found to be 130Ω. The HPLED's have no markings that I can see. I can't identify how the individual LEDS are connected. It appears to be a combination of series AND parallel.
They all work fine when I hook them up to a breadboard with (2) 6V batteries hooked in series.
The problem is that I'm going to be running them from a generator. I have a ton of motors ranging from 9v-50v. I'm looking at about 4-6000 rpm on the turbine which will drive the motor.
My questions are:
- How do determine what the load of the circuit is without knowing exactly their resistance?
- If using a motor capable of 50V, how do I ensure that no more than 12V gets to the lighting?
- What else am I missing? What am I not thinking about?
Any help/suggestions would be greatly appreciated.
Useful Links to the components I'm using:
http://www.tmart.com/1210-30-Led-Interior-Car-Light-Bulbs-White_p143161.html
http://www.tmart.com/6-SMD-LED-Car-Interior-Dome-Door-Light-Lamp-White_p85819.html