I need a floating 6V supply, fed from a nominal 12V (10.8V -14.4V). Not sure what the current drain is, but the device normally uses 4x AA batteries.
Has anyone got a simple circuit to do this?
You are making a distinction that doesn't exist. Ground in the case of an electronic circuit is not the kind of ground you are referring too. You didn't say, but if the 12VDC you are feeding is grounded the job gets a lot harder, and probably over your technical abilities. My assumption (since you did not specify where or what the source voltage is coming from) is it is floating.There is no "wall wart" involved. I want a floating 6V from 12V, as per my OP.
Yes, and yes. I thought that my orginal question was clear enough, but it seems others think they know what I need better than I do!Bill, this
looks like the power source is a 12V battery, not a wall wart.
nigelmercier: if you really need it isolated, you need a flyback SMPS.
I have learned over the years that if you give the full details of a requirement, then most of the replies will be "You don't want to do it that way ...". Well, yes I do!Actually you didn't provide all the details at the start ...
http://webench.national.com/webench...Min=10.8&VinMax=14.4&O1V=6.0&O1I=0.1&op_TA=30Yes, and yes. I thought that my orginal question was clear enough, but it seems others think they know what I need better than I do!
So, has anyone got a schematic for a flyback SMPS?
Input: nominal 12V (10.8V -14.4V)
Output: nominal 6V (5V - 8V)
Current: around 100mA
I know exactly what ground is, which is why I did not refer to it in my OPExactly what do you think ground is?
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