Power Supply - help needed with voltage and current

[Mogzieno1]

Power Supply Help

Hi all, this is a total noob question. But i recently aquired a lab power supply and have been playing around with it.

When i turn it on there is a voltage displayed but no current, then when i connect a circuit a current is displayed but no voltage.

When checking with a multimeter it shows there is very little voltage and no current.

Can anyone please help?

Thanks

 

[IanP]

Re: Power Supply Help

Laboratory power supply has a Current Limit Adjustment Potentiometer.
It sets the output current in constant-current mode.
If the output current is set to “near” zero the effect will be exactly what you have experienced: as soon as you connect any load the voltage drops to almost “0” and the current doesn’t flow.

Try to turn the knob of the Current Limit Adjustment Potentiometer to the right ..
(This is valid only if your power supply is not faulty)

Rgds,
IanP

 

[Mogzieno1]

Re: Power Supply Help

Thanks for the reply Ian, i'll have a go

 

[taurus3]

Power Supply Help

need to check adjustments before applyin anything new attempt.

 

[electtron]

Re: Power Supply Help

It happens when to try to connect a load that draws more current than that could be supplied by the power supply.
Either try increasing the current limit set on your power supply or connect a load thta draws lesser current