Part Number: UCC28951 Tool/software: Dear Sir,
We are using UCC28951 for designing PSFB Board for 4kW Charger. Can you give the procedure to do Fixed delay approach in UCC28951 for getting uniform DT. The dead time(DT) is Non-Uniform and there is a difference…
Part Number: UCC28951-Q1 Tool/software: Hello mike.
I'm trying to adjust compensation and TMin values and have bought the board to this stage. Below I'm attaching waveforms and videos.
This is higher voltage lower loads currents.
Vin : 600V,…
Part Number: UCC28951 Tool/software: We have designed a 1KW, ±80V output switching power supply for the amplifier, and we would like to consult on two questions:
How can the dual-voltage feedback ensure that the absolute values of the two voltages…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 , Tool/software: Dear Sir,
We are unable to check current sense current using KEYSIGHT InfiniVision MSOX3024T oscilloscope with High Voltage probe, Can you advise how to do that for UCC28951…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 Tool/software: We are unable to check current sense current using KEYSIGHT InfiniVision MSOX3024T oscilloscope with High Voltage probe, Can you advise how to do that for UCC28951?. This…
Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 Tool/software: Dear Sir,
We are using UCC28951 for designing PSFB Board for 4kW Charger. The dead time(DT) is Non-Uniform and there is a difference in Dead Time(DT1) and dead time (DT2…
Part Number: UCC28951 Tool/software: Posting for a colleague:
Project Specs: Vout: 24VDC Vin: 550V P=500W I am using UCC28951 (PSFB topology) IC for DC-DC isolated power supply project. I have a full bridge synchronous rectifier on the low voltage (secondary…
Part Number: UCC28951-Q1
Tool/software:
Hello Mike,
Attached is image of output ripple. Is this acceptable? Or it's not ??
Vin : 666 , Iout : 39A, Vout : 25.8V
Purple: output voltage ripple
Below image is for lower loads without synchronous…