dc to dc converter 6V to 15Vin the range 0V to 5V

[shwetapat123]

hi all,
could some one please help me in designing a circuit that will convert my 6V to 15V dc voltage in the range of 0 to 5V. 6V to 15V is continuously varying.
waiting for yr reply
thankinging in advance

 

[stevez]

What current?

How low is the lowest acceptable voltage? Zero isn't a practical value.

 

[audioguru]

It is easy to design a power supply that doesn't need to provide any output current.

 

[Hero999]

When you say 0V you must be talking about the output voltage, if not then please read more about potential difference, current flow and ohms law.

 

[dknguyen]

Your sentence makes no sense...

EDIT: unless you mean 6-15V is the input range and 0-5V is the adjustable output range. Either way you need to provide more info.

 

[audioguru]

Easy:
1) The 6-15VDC input feeds a 1k resistor connected in series with a 5.1V zener diode to ground.
2) A 100k pot in series with a 2k resistor across the zener provides the adjustable output voltage of 0V to 5V.
3) Output current is next to nothing.