Hello,
The excel design tool was developed in 2010 and has proven reliable in designing phase shifted full bridge controllers. So if your simulation schematic matches the excel tool that is a good start.
Your next step is debug the simulation. If you…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC21520-Q1 , UCC28951 , UCC21520
Hi,
We are using the UCC21520-Q1 Isolated Gate driver for the UCC28951 PSFB. Shall we use single isolated DC to DC at the Primary side for both Gates power VDDA &…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 , UCC28950 Hi to all,
I'm developing a PSFB application with UCC28951. It is a DC powered converter with syncronous rectifiers, nominal output current is 60 A. The transformer is in center…
Part Number: UCC28951-Q1 Hi TIer,
I am study the phase shift full bridge by TIDU248 and I saw the D5 and D11 are not describable in document.
Could you help me to explain the D5 and D11 function and how to select the parameter for it? Thank you.
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 , UCC28180 , UCC28950 Hello,
We designed the 2KW Charger using UCC28951 & UCC28180 chip. We need support and clarification on the Gate Tracks layout of the UCC28951. Please check out the…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 , PMP8740 Hi,
I have designed a 20V output power supply using UCC28951. It is successful. The DEMO I am referring to is TIDA-020031.
While I need to design a 70V output power supply. The current…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 起動時に、ローサイドFETゲートで意図しない波形が見られることがあります
図の110kHzの波形は、ICのVDDを供給する電源のスイッチング周波数です。
「UCC28951-Q1」のFSWを150kHzから120kHzに変更すると、この現象は消えます。
原因と対策を教えてください。
TI_inquiry 20231106.pdf
Part Number: TIDA-020031 The image on Page 1 shows a battery connected to output after the Circuit Breaker.
Can a battery be charged safely and efficienctly without any 'Battery charging ICs' ?
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 Hi,
I am designing a phase shifted full bridge circuit using the TIDA-020031 reference design, with an output voltage of 20V, a current of 150A, and a maximum power of 3000W.
The transformer…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 電流制限が機能しており、SSピンの電圧が低下しています。
ただし、スリープモードに入ると、SSピンは放電されませんが、充電されます。
また、SS端子の電圧降下時間は47.5msに設定されていますが、約100msかかります。
この現象が発生する理由と対処法を教えてください。 TI_inquiry 20231107.pdf