I am working on developing a laser diode driver. The diode requires about 10A current at 2V.
I am looking for switching mode power supply circuits to achieve the same. Any help on the circuits would be appreciated

 

A 20W laser might stretch the bounds of the terms of service here, for safety reasons. We'll see.

 

What are you going to be using that laser for? (just curious)

 

Its for some spectroscopy work but that's later on. I need a way to drive the current first

 

It can be done using an ATX psu, using the 3v rail, the psu can be made variable to give as low as 1.9v.

 

The current goes up to 10A but the operating power is about 13W according to the product specifications.
Since I am not well versed with switching mode, a schematic of the circuit if available will be appreciated

 

Hello,

Be sure that NONE of the laser intensity will come into free space, where people are around.

Laser safety is safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations.

Moderate and high-power lasers are potentially hazardous because they can burn the retina of the eye, or even the skin. To control the risk of injury, various specifications, for example ANSI Z136 in the US and IEC 60825 internationally, define "classes" of laser depending on their power and wavelength. These regulations also prescribe required safety measures, such as labeling lasers with specific warnings, and wearing laser safety goggles when operating lasers.

Laser safety is a serious issue:
http://en.wikipedia.org/wiki/Laser_safety

Bertus

 

Rest assured the work will be done under supervision in the lab so there won't be safety issues

 

Hello,

The following page might interest you:
http://donklipstein.com/laserdps.htm

Bertus

 

Seen the site....some good explanations but most of the higher power circuits there work at more than 50A