Hi there i have connect 3 lamps in parallel with PC Power supply's +12 output. I have 2 watt meter clamp type. I both measure DC part and AC part at the same time here's the results:
DC Part
E(V) 11.4Volts
I(A) 5.25Amps
P(W) 60Watts
AC Part
E(V) 200V
I(A) 0.47A
RealPower(W) 72Watts
ApparentPower(VA) 94VA
ReactivePower(VAR) 60VAR
PowerFactor(%) 0.77
so above the results the wasted power is 16.56W is it right?
and efficiency= dc output/ac in=0.83 is it right?
i only loaded just +12V output the other rails unloaded
sorry my bad English thank you very much
DC Part
E(V) 11.4Volts
I(A) 5.25Amps
P(W) 60Watts
AC Part
E(V) 200V
I(A) 0.47A
RealPower(W) 72Watts
ApparentPower(VA) 94VA
ReactivePower(VAR) 60VAR
PowerFactor(%) 0.77
so above the results the wasted power is 16.56W is it right?
and efficiency= dc output/ac in=0.83 is it right?
i only loaded just +12V output the other rails unloaded
sorry my bad English thank you very much