Part Number: UCC2897AEVM Other Parts Discussed in Thread: UCC2897A , INA183 , INA186-Q1 , INA280-Q1 Dear Sir/Madam,
I am using device UCC2897A for isolated DCDC active clamp circuit.
Referring to UCC2897A-EVM and simulation file slum605 startup transient…
Part Number: UCC2897AEVM Hi
I would like to make a pcb after making minor changes to the existing module. But i can't find the schematic or Project file for download anywhere.
Could someone please share this ?
Regards Srinath
Part Number: UCC2897AEVM Other Parts Discussed in Thread: UCC2897A Hello,
I'm using the UCC2897A EVM board and noticing a relatively high quiescent current draw, and I'd like to figure out where that could be coming from.
Current draw at no load is…
Hello Henry,
I am going to close this post since there has been no new thread in over 1 week.
Please open a new post if you need further help.
Regards
John
Part Number: UCC2897A Hi Team,
Customer tested the bode plot of our UCC2897AEVM and found out an abnormal phase rise marked in blue cycle in below screenshot. They want to know what's peripheral circuit may cause this phase rise? And does this phase…
Hello Tracy,
You have a number of questions here and very little information as to how you observed these issues.
So I will try to address the issues as best I can.
(1) What do you mean by ACF ? Do you have a schematic for this ?
(2) The block…
Hi Jaden, Thank you for your reply.According to your suggestion, I parallel the 1K resistor in the optocoupler diode and adjust the feedback resistor. Currently FB is in much better condition than before.But many reference designs do not do this, such…
Hi Jeff,
Please also see my previous markup about adding the synchronous rectifier MOSFET as they have in PMP21103.
Since the UCC2987A is made for the active clamp forward topology, you also need to include the active clamp reset MOSFET.
For…
Part Number: UCC2897A Other Parts Discussed in Thread: PMP9656 UCC2897AEVM, 48V-60VDC Input, 12V/250W Active Clamp Forward Reference Design , 12V/21A output from 54V DC input.
Can the design reach 12V/500W? If not, what is the limitation? Thanks.
Hello Dattaray,
You can order the EVM on the link below:
The maximum duty cycle of 70% for UCC2897A is considered as a normal operation, you will be fine there.
The paper below has a very thorough approach on how to calculate the power losses…
