Projector Power Supplies

[kecked]

http://www.mpja.com/24-Volt-Power-Su...fo/16032%20PS/

[sbk]

what do you mean install 4???

also am i going to need a loan to buy one of these?

You have the framework and then you can install up to 4 modules inside the framework, with a choice of different voltages and power.

I don't know the price as I received it with the laser but I just had a look and I'm afraid it should cost >400$ for a complete unit with 4 modules... But that's the must, it's worth the price if you have a serious projector to power.

Have a look here : http://components.arrow.com/part/det...1S9090830N4190

[andy_con]

i only need 2 not 4 so we will see

You have the framework and then you can install up to 4 modules inside the framework, with a choice of different voltages and power.

I don't know the price as I received it with the laser but I just had a look and I'm afraid it should cost >400$ for a complete unit with 4 modules... But that's the must, it's worth the price if you have a serious projector to power.

Have a look here : http://components.arrow.com/part/det...1S9090830N4190

[andy_con]

surely if my starting psu, say i go with a 48v has enough juice to power everything and more. then the scanners can pull what they want and it wont cause any issues?

[FourDee]

cheap - good - small

pick 2

[andy_con]

I never said cheap I just don't want to have to take a loan out to buy one

[steve-o]

My green 500mw just takes 5V at about 6A (iirc) to power it. I'm going to run all the lasers off of one 5V rail. The only other thing I'm unsure of is the galvo psu. Probably have to be a separate one + 24V. I'm bulding a whitelight RGB "notebook" (slim style) projector (hopefully.) The 5V supply is just going to be an old fashioned (non-switching) transformer-bridge rectifier-capacitor-linear regulator type. It should supply about 20Amps and not be too big.
Your 532 requires both 5V and a separate 12V? Maybe just get a buck-boost converter (really small lil things) to convert the 5V to 12V if the current draw isn't too much .

[andy_con]

been confirmed by rob only 5v

[kecked]

you should setup as I drew the +/-24V supply for the scanners and use a separate one for the lasers. 5V 6A switchers are cheap and everywhere. Use it. Not sure why its asking for 12v? Maybe to run a fan or TEC? I bet you need 2-5A if its a TEC so then use a third supply. Again tie all grounds to a central point and earth.

I was just looking to see about making a design for the forum but its not worth the effort. What you see on the market is fine. To save space I stack my supplies on top of each other. Makes a taller box but smaller foot print.

If you are making a small laser it is usually small power so then you can start looking at using the scanner supplies and dc-dc convertors. If you draw a full amp off a rail you'll unbalnce the supply. Don't forgret the Vf on the new greens is 8.6V! So you need 250ma at 12V for that driver, 6V for the blues, and 5V is plenty for the reds. So a 12v 3amp supply with a 5V 1amp output might get you there if the blue runs on 5V (most do). That's a plain jane computer power supply.

[macpod]

Are you suggesting an additional 5v supply vs using 12v for all diodes because of heat dissipation?

That vox power block is pretty cool!