Part Number: UCC28951 Hello,
I am designing a 2.4 kW PSFB DC-DC Converter. I am using UCC28951. I have used the excel tool provided during my power stage design, and I also used the values of the compensation network from there. I have attached the excel…
Hi Vipin,
This model for both is the same. The only difference between the -Q1 and non-Q1 is the production flow and test flow. There is no difference between the models. The difference between the UCC28950 and UCC28951 is the maximum duty cycle in current…
Part Number: UCC28951 Hi
i am facing a problem with UCC28951 design.
Its a AC to DC converter rating of 58V/40A. When i am loading more than 20A observed some disturbance in mosfet gate wave form. Please suggest what could be the problem.
Attached image…
Hello,
When voltage amplifier is above 2.8V you should be at 100% duty cycle. When the voltage amplifier drops below 0.8 you should obtain 0% duty cycle. However, if the on time is greater than Rtmin your zero duty cycle could happen before 0.8V. In…
Hello,
Are there any specific figures you are discussing, could you reference them?
When it comes to taking test waveforms from FETs. I have done the following.
1. With through whole FETs you may have access to the gate, drain and source which you can…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 In full bridge ZVT converter, can i take the output feedback before the output inductor. If not why.
Then is there any problem will occur when we swap the gate signals of MOSFET A, B by…
Hello,
I am sorry you rejected the answer. However, the following link will bring you to an example of designing a phase shifted full bridge with Galvanic isolation using the UCC28951. I hope this helps in your design process.
https://www.ti.com/lit/ug…
Part Number: UCC28951 Other Parts Discussed in Thread: UCC28950 Hello, I have to design a converter where the specifications are:
Vin: 42 to 75Vdc
Vout: 350 to 370Vdc
Output power up to 2kW
Constrain: the maximum power converter height is 40mm, therefore…