Paralleling Power Supply Units Made Easy ???
I am considering paralleling a couple of 20a variable adjustable psu's for 40a charging. According to what I have read on the world wide inter-web, it can be done quite easily, provided the following ...
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As I showed in the example, the supply that has the lower voltage will drop out first. If the two supplies are millivolts apart then they should drop out more or less together.
As far as I know, your supply has a variable voltage and a fixed current limit set at 20A. You can't change the current limit. You can only adjust each supply voltage to 14.8V. If for example the two charging cables have 15 mohm each, then the battery will get 40A until its voltage reaches 14.5V. At that time current will taper.
As far as I know, your supply has a variable voltage and a fixed current limit set at 20A. You can't change the current limit. You can only adjust each supply voltage to 14.8V. If for example the two charging cables have 15 mohm each, then the battery will get 40A until its voltage reaches 14.5V. At that time current will taper.
jrnymn7 wrote:
??? could any small variations in voltage output of either unit cause the other to drop out prematurely?
Do I simply set both units to say 14.8v, AND 20a, OR do I only set the Voltages and let the battery pull what it will, up to 40amps ?
thanks.
