Split power supply using a single transformer winding

[wossy]

split power supply

I want to make a split rectified power supply (+/-) using a single transformer winding (not centre tapped). Does anyone have a circuit.

Thanks

 

[FoxyRick]

make split power supply

There are two ways to do this, depending on how much current you need???

One way is to use a rail-splitter to get the central ground, the Texas Instruments TLE2426IP is good for 20mA.

For higher current, just use a switching regulator with a +ve input and -ve output, eg Texas PT6643P (+12V in, -12V 2Amp out) or PT5062N (5V input, +/-15V output)

There are plenty of off-the-shelf solutions or you can search google for inverting, switching regulators. It's simple, established technology.

Cheers,
FoxyRick.

 

[jzo777n]

power supply splitter texas

A simple solution is a switch capacitors regulator like the classic 7660
There are IC from which you can get a couple of 100 mA output current
Many manufactures has this type of regulators, TI, Maxim, Linear...

 

[tryagain]

split power supply one winding

If you in linear circuit ,you can use two diode to connect one port of transformer,and another port is - port.
but in smps,it can simple do it,because of depending on topo of circuit!