- #1
tim9000
- 867
- 17
Q1. I know a DMM will anticipate a sineusoidal supply, thus there can be problems with spiky supplies.
Even if you have a true RMS meter, it it's a spikey supply, non-sineusoidal, you still can't calculate the peak of a spiky supply?
Does a DMM measure the peak, then calculate from THAT the rms?
Or does a DMM possibly measure the average and calculate rms from that?Q2. I've heard that in a TX that maximum efficiency occurs when copper loss is equal to core loss?
Is there a simple reason for this?
Cheers
Even if you have a true RMS meter, it it's a spikey supply, non-sineusoidal, you still can't calculate the peak of a spiky supply?
Does a DMM measure the peak, then calculate from THAT the rms?
Or does a DMM possibly measure the average and calculate rms from that?Q2. I've heard that in a TX that maximum efficiency occurs when copper loss is equal to core loss?
Is there a simple reason for this?
Cheers