Billy Mayo
Member
I'd probably use CHOP mode vs ALT sweep if you have them
Why do you like CHOP mode and not ALT mode?
The power supply is a PWM power supply or a high frequency pulse power supply
The power supply uses a UC3844N chip to Pulse a high frequency AC signals to an AC to AC transformer.
UC3844N datasheet:
https://www.alldatasheet.com/datasheet-pdf/pdf/25573/STMICROELECTRONICS/UC3844N.html
https://pdf1.alldatasheet.com/datasheet-pdf/view/25573/STMICROELECTRONICS/UC3844N.html
I'm using a Fluke 87 meter, I was trying to measure the AC voltages on the transformers primary and secondary windings
There was no AC voltage on the secondary windings
My Manager said it's because the Fluke DVM meter can't measure High Frequency AC , only very low AC frequency's to measure an AC voltage
The Fluke DVM meter only measure AC voltages at low frequency
Is this true and what kind of DVM meter measures High frequency AC voltages?