low cost AC adaptor design - help needed

[kumar]

tny267 price

Hi!

I design various types of control instruments.

I need a extremely low cost smps power supply capable of delivering 200mA at +/- 5V and the input should be universal input i.e. 90V to 275VAC.

Any help would be appreciated.

Thanks

Bye!

 

[papyaki]

adaptor rcc design

See Topswitch from PowerIntegrations

**broken link removed**

 

[shanren]

TOP is good choice for these adaptor,but not low cast.maybe a RCC converter is good choice,only need about 2-3 transistors.maybe a PWM controller,such as uc3843 and a mosfet is cheaper than TOP switch.
best wishes.

 

[jmk69006]

I recommanded the RCC circuit.
I think this lowest price solution in the market.

 

[LIVIU]

I use for this
TNY266 and TNY267
and is work fine for 12/1A..
see application note for this
i can help you
liviu

 

[LIVIU]

I use for this
TNY266 and TNY267
and is work fine for 12/1A..
see application note for this
i can help you
liviu

 

[kumar]

Hi! jmk69006

Thanks for your reply.

Can you give me the details - preberably schematic with pcb layout if possible.

Bye!

 

[PigiPigi]

do you mean AC2AC converter?

 

[techie]

anyone tried ph1l1ps greenplug series. THis IC includes a mosfet so makes a real cheap smps design

 

[bryanwizard]

Re: AC adaptor design

I think low cost design. I'm favor with RCC but the lack of information needed to design such one is a trade off...

I similar to flyback but the pwm controller is in discrete mode...

Check delta power electronics, you might such one.


rgds,
bryan