Other Parts Discussed in Thread: UCC28070EVM
Can you please address the following problems with the UCC28070EVM User's Guide (TI Document SLUU312)?
Figures 7-13 I am not able to tell what the “amps/division” scaling is. Can you explain…
Hi David,
The test results were from the UCC28070EVM modified per the values (both the daughter card and power stage) from the calculation spreadsheet that was previously provided. I set the output voltage to 300V for my intended application and I used the…
hello user,
I suggest you can order an UCC28070evm from TI website to study the part.
on the Ti website you can also download the calculator to see whether the parameter is correct.
I look through the schematic, the turning on resistor is 4.7kohm, it looks…
Hi Alboussiere,
It looks to me that the design tool parameter is ok.
have you tried the Rimo resistor?
I would suggest you can order an UCC28070evm as reference to see whether anything missing.
Part Number: UCC28180EVM-573 Other Parts Discussed in Thread: UCC28180 , UCC28070EVM , UC3854 , UCC2818 , UCC28070 , UCC28065 one of TI's tech support that their UCC28180 had been successfully used at the AC line frequency of 400Hz. We obtained their evaluation…
HI David
Follow your suggestions,I actually tested it, please refer to the attachment for the results
TKS UCC28070EVM current loop gain and phase measurement.docx
Part Number: UCC28070 Hi. we've successfully developed 5kW Interleaved PFC with UCC28070 and planning to parallelize it to make 10kW.
And If I understand the answer from this link correctly, there's no function to parallelize 2 ucc28070 without …
Part Number: UCC28070 Hello,
we are realising a 3...4 kW bridgeless PFC with AC switches (common source FETs). The line voltage range is 198 ... 305Vac and the dc bus voltage should be low as possible. If the peak voltage of the line voltage gets higher…
Hi Qiu:
We had tested UCC28070EVM at 800Hz, it can work normally but a little worse of PF. If you want to further increase the input frequency to 1Khz, it will further influence the PF and ITHD,and should be normal working.
attached is the 800Hz test…
Part Number: UCC28070 Hi Team,
Our customer is evaluating their board.
If heavy output current occurs, FET is stopped.
Therefore, they investigate this cause.
[Investigation content]
If heavy output current occurs, AC input voltage drops by Resistance…