Power Supply?

Thread Starter

MDillon

Joined Jul 15, 2013
1
Hi, I am new here, I'm hoping I can get some help with building a little power supply.
It is a NEEWER CN-160 Patent LED VIDEO LIGHT (with 160 individual LED LIGHTS).
This runs on 6 AA Batteries, but I want to make it able to plug in to use a wall outlet.
These are the specs:

Specification:
Input: DC 7.2V~8.4V
Maximum Power: 9.6 Watt
Color Temperature: 5400K (3200k w/filter)
Average Service Life: 50000 hours
Luminous flux: 660 lumens
Runtime: 70-90mins
Video light size: 141mm x 62mm x 150mm
Gross Weight: 430g (without battery)

What do I need for parts and values? and what schematic could I use?
Thanks so much!
 

tracecom

Joined Apr 16, 2010
3,944
Hi, I am new here, I'm hoping I can get some help with building a little power supply.
It is a NEEWER CN-160 Patent LED VIDEO LIGHT (with 160 individual LED LIGHTS).
This runs on 6 AA Batteries, but I want to make it able to plug in to use a wall outlet.
These are the specs:

Specification:
Input: DC 7.2V~8.4V
Maximum Power: 9.6 Watt
Color Temperature: 5400K (3200k w/filter)
Average Service Life: 50000 hours
Luminous flux: 660 lumens
Runtime: 70-90mins
Video light size: 141mm x 62mm x 150mm
Gross Weight: 430g (without battery)

What do I need for parts and values? and what schematic could I use?
Thanks so much!
According to the specifications you posted, the light runs on 7.2 to 8.4 VDC at a maximum current of 1.33 Amperes. Building a supply would involve mains voltages; you would probably be better off using something like this, even though it is larger than you really need.

http://www.mpja.com/75-Volt-Power-Supply-135A-100W-Switching-Hengfu/productinfo/16012%20PS/

Search for a power supply that is regulated, and outputs somewhere between 7.5 and 8.4 volts DC at 2 amperes or more.

It is also possible that you could find a 12V "wall wart" that will supply at least 2 amps, and build a regulated 8.4 V regulator circuit for it. It would require a regulator IC such as an LM317 and then a couple of power transistors such as 2N3055 plus a few other components.
 
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