Re: [softrock40] Current Limited Voltage Test question RXTX 6.3
----- Original Message -----
From: "Jon" Subject: [softrock40] Current Limited Voltage Test question RXTX
> Connect a 100 ohm resistor in series with the power line and apply 12 V dc
> Measure the voltage WRT ground at the +5 V and at the 3.3 Vdc testpoints.
> A voltage of around 2 V dc indicates the power rails are not shorted
> Current test is nominal.
> My rails are measuring 5V=3.29V and 3.3V=3.29V when I have a 100ohm
> resistor in the supply line. When I remove it the current measurement is
> nominal and the rail voltages are as follows:
> 5V 4.97V
> 3.3V 3.29V
> Should I be worried about the 5V rail voltage on the current limited test?
No, this is just a very crude test to see if there is a short to ground,
voltages are very approximate.
73 Alan G4ZFQ