Part Number: UCD3138PFCEVM-026 Hello,
We bought UCD3138PFCEVM and I am trying to test it.
I followed the steps mentioned in the user manuals and connected the PFC Eval to 240Vac input
On the first attempt, I think only the bridge rectifier was…
Part Number: UCD3138PFCEVM-026 Hello expert For the UCD3138PFCEVM-026 evaluation board, I see in your information that the duty cycle feedforward method is used to reduce the input current THD. Is there any code for this method in the PFC source program…
Part Number: UCD3138PFCEVM-026 Hello expert Excuse me, in the official download of the UCD3138PFCEVM-026 evaluation version of the source program, if I want to select the single-phase PFC function mode, in the program, in addition to changing the following…
Part Number: UCD3138PFCEVM-026 Hello expert When I use UCD3138PFCEVM-026, I select single-phase PFC mode, the input AC is 115V, and LED3 will be red when power is on. What is the cause of the error?The load is 500 ohms.The program comes from TI's official…
Part Number: UCD3138PFCEVM-026 I am looking for a PFC device for input voltages between 26VAC and 55VAC but they all seem to be at the higher input voltage range.
Is there any that are built for lower voltages?
Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: UCD3138CC64EVM-030 , Hello expert if I only use the control board of UCD3138CC64EVM-030 instead of the evaluation version of UCD3138PFCEVM-026, the source program is single-phase PFC, and…
Part Number: UCD3138PFCEVM-026 Hello expert There is a double power frequency ripple on the output voltage of Boost PFC, which will affect the reference current waveform calculated in the dual-loop control. How do you deal with this in the program? I…
Part Number: UCD3138PFCEVM-026 Hello expert What is the function of AC Drop Detection below? And when the input voltage is at the zero-crossing point, when the input current produces a large THD, how is the program solved in this project? Looking forward…
Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: UCD3138CC64EVM-030 , UCD3138 Hello expert I am studying the UCD3138PFCEVM-026 evaluation board recently, but there are several problems in the program: 1. In the PWR026_PFC source program…
Part Number: UCD3138PFCEVM-026 Hello expert Sorry to bother you, expert, but I can't quite understand this.: When running the single-phase PFC mode, the AC current(Iac) needs to be sampled. Why are only three AD conversion sequencers (SEQ0\1\2) used in…
