power supply

[steve england]

can any help please ? I want to change a power supply from 12v dc to 24v dc. Would appreciate any help

 

[bmcculla]

Look up charge pumps for low current and Boost DC-DC swithcing converters for higher currents.

 

[Optikon]

can any help please ? I want to change a power supply from 12v dc to 24v dc. Would appreciate any help

Boost converter.

If the load requirments are small, voltage multiplier might be an option.

I would recommend a switcher though.

http://www.ti.com

http://www.linear.com

**broken link removed**

Search these sites for switching regulators and/or switching controllers.

You can roll your own in a crude way using a PWM technique with a '555 but for the cost of these things, get a REAL controller, you'll like the extra features.

 

[steve england]

Thanks for your replys and help

 

[steve england]

I am a novice and what I am trying to do with the 12v to 24v is use a 24v dc LED light from a lorry on a 12v dc motorcycle trike supply. Whilst the power output only needs to be about 1watt.Is there and does anyone know of a simple circuit for doing this.

 

[panic mode]

Depending on size (easy of access) you might want to hack it
and make it 12V by splitting LEDs in two groups. Otherwise just make
small DC/DC converter...

 

[Nigel Goodwin]

Depending on size (easy of access) you might want to hack it
and make it 12V by splitting LEDs in two groups. Otherwise just make
small DC/DC converter...

You might even find that it's designed to be either 24V or 12V, and can be changed over easily on the existing layout - perhaps just some wire links need moving?.