Part Number: UCC28070 Hi Ti expert,
I am using Excel calculation for interleaving PFC ,while doing so optional Freqency dithering magnitude,frequency dithering rate
Could you please explain about this?
what could be the range of frequency to be entered…
Part Number: UCC28070UCC28070 is used in interleaved PFC boost converter in continuous conduction mode. If there is a power interruption for few seconds will the switching MOSFET be short?
Part Number: UCC28070
CH1:PFC output voltage,CH2:LLC output CH3:Input current CH4:PFC MOSFET VGS
Hi TI E2E
When the output reaches full power instantaneously, the occasional drop in PFC voltage may occur.
The attached diagram reveals that when reaching…
Dear Ulrich,
I have the good news that my problem is solved. When the Magnetizing inductance of CTs is increased, the voltage at ISENSE pins and the current through Ids are almost the same. My input current is so "sine" and the spike current at Zero-crossing…
Part Number: UCC28070 Other Parts Discussed in Thread: UCC27324
Hello my name is Stephen from Zed Audio. I have designed a 5Kw PFC using the UCC28070 and have optimized my drive circuit using your on line Power Designer. I am not able to achieve a decent…
Part Number: UCC28070-Q1 Other Parts Discussed in Thread: UCC28070 Hi
I have a question about VAO of UCC28070-q1
For isolution, I need a o ptical coupling or an isolution IC to do the compensation.
In this application, the compensation is in front end…
Part Number: UCC28070 Hi Sir,
At present, I use your UCC28070 chip to make PFC product.
When the power reaches above 3.6kW, the input current waveform is abnormal in a certain period, and the other periods are normal.
Abnormal current flow is very random…
Part Number: UCC28070 Hello,
For the Semi bridgeless PFC using UCC28070, can you please help answer this question:
How does the controller identifies if the PFC configuration is interleaved or semi bridgeless. Our understanding is the controller generates…