ytreboe said:
I have a transmitter 4-20 ma which needs 15-30 C dc to work. I have only 12
V available. Can anyone please suggest a easy solution? Some small device to
solder on top if the transmitter or other solution.
I'm not much into electronics
Kindly
Ingvar
Norway.
.
It will depend on the nature of the power supply you are using. It
may be that it is internally adjustable to give you slightly more
voltage, or it may be that working into a relatively high impedance
it will provide higher output voltage. On the other hand, neither of
these may be true.
If you could provide the group with some more information regarding
your power supply, we may be able to come up with a realtively simple
solution which doesn't include much construction.
Apart from that, you might try ordering a DC to DC converter. The
NMF1215S, 12V to 15V converter provides 67mA output curent,
sufficient for your requirement. You can get it from RS Components in
he UK or from any well stocked supplier. It's small and you will be
able to mount it on a bit of strip board or just wire directly to the
terminals.
Regards
John