power supply

[Michael1990]

Hi guys,I want to made power supply but i need a components for power supply  designer by 18 to 250 Vac in and 5 Vdc to 400 mA output!
can you help me?

[Psi]

18 to 250 Vac is a VERY wide input range

[newtothis]

Hi,
I'm myself pretty new to Electronics - but I think your question is within my scope to answer.
Most phonechargers takes in 100-240V Ac, and gives a 5V, 1A DC output (this will be given on the label), and the current can be limited/reduced with addition of a resistor. couldn't this simple setup not satify your requirement?

[Michael1990]

Thanks!
Ok i think it's better , input range between 110-245 V and output between 5 V and 400 mA
please help me now.....

[cs.dk]

As newtothis said, a simple wall-wart phone-charger would do the job. No need to over-engineer things.

I don't understand, what you mean by this sentense; "output between 5 V and 400 mA"?

[Dave]

I don't understand, what you mean by this sentense; "output between 5 V and 400 mA"?

Not worded perfectly, I'll give you that, but still very clear what he wants to achieve:
a 5V DC power supply capable of delivering 400mA.

If you want to engineer your own switching power supply (I can see why someone would want to do that, as opposed to hacking a crappy wall-wart), I suggest you look into off-line SMPS chips (look at he product catalogs of manufacturers like Power Integratons, ON Semiconductor, NXP, ST Microelectronics and Texas Instruments). Look at the datasheets, they will give you all the information you need to design a good circuit.

[Michael1990]

Thanks for your helps !
I think it's good by di-152-3-w-ultra-wide-range-input-power in this site : ac-dc.power.com

[Timmay]

Thanks for your helps !
I think it's good by di-152-3-w-ultra-wide-range-input-power in this site : ac-dc.power.com

Link to the actual product. No one wants to sort through an entire webpage to find what you are talking about, nor can we give an opinion on it.