ultra high efficiencypower supply

Y

yehuda.ortal@gmail.com

New Member

• Dec 29, 2009

• #1

Hi,
I would like to buy a design for power supply

The Power supply spec:
1. Input voltage: 100vac - 270Vac (Wide input)
2. Output constant current: 400mAmp.
3. Output Voltage: 48vDC
4. Ultra high efficiency around 90%
5. Max mechanical Dimensions: [L x W x H] : 25cm x 1.0cm x 0.8cm
6. Max cost 8USD.
It is preffered to implement by Microcontroler (additional cost) like Microchip in order to use PWM at the output and remote communication.

Thank you
Yehuda

 

MikeMl

Well-Known Member

Most Helpful Member

• Dec 29, 2009

• #2

Hello, **broken link removed**

 

Y

yehuda.ortal@gmail.com

New Member

• Dec 29, 2009

• #3

Thanks Mike,
The max dimensions are over my requirements.

Thank you again,
Yehuda

 

S

smanches

New Member

• Dec 29, 2009

• #4

You're dimensions are not going to work. There is not even enough room to have traces, much less have room for anything else.

25cm x 1.0c with only 0.8cm for height?

I think you're trying to control too many aspects of the design process at once. That is, cost, size and features. pick only two of the three.

I think the smallest SMPS I've seen are the cell phone wall plugs, and even they are larger.

 

Last edited: Dec 29, 2009

R

Rey

New Member

• Dec 29, 2009

• #5

The higher the efficiency, the larger the supply. Especially with such a colorful input range.

Might I suggest just using a battery?

 

Last edited: Dec 29, 2009

tcmtech

Banned

Most Helpful Member

• Dec 29, 2009

• #6

Multiply your volume by a factor of 50 and your cost by a factor of 10 and you will be in the more plausible size and cost range.

 

Y

yehuda.ortal@gmail.com

New Member

• Dec 30, 2009

• #7

ultra high effidiency power supply

Dear member,

have already same dimensions and price but only 70% efficiency.
I can get more length instead of 20cm can be 25cm.

Thanks,
Yehuda

 

Mr RB

Well-Known Member

• Dec 30, 2009

• #8

Please show your schematic for that PSU with 70% efficiency in that size. Or photos?