I'm confused by the multimeter readings I'm getting from a wall wart power supply.
Manufacturer says:
OUTPUT
12 Vdc
Multimeter readings:
OUTPUT
5.67 Vdc <--measured dc voltage
11.7 Vac <--expected voltage but it's AC
Would a bad diode leave the AC unrectified (outputting 12 Vac rather than 12 Vdc)?
PS I have a cheap multimeter, with instructions in Chinese. I could be using it wrong.
thanks.
willis
Manufacturer says:
OUTPUT
12 Vdc
Multimeter readings:
OUTPUT
5.67 Vdc <--measured dc voltage
11.7 Vac <--expected voltage but it's AC
Would a bad diode leave the AC unrectified (outputting 12 Vac rather than 12 Vdc)?
PS I have a cheap multimeter, with instructions in Chinese. I could be using it wrong.
thanks.
willis