Hello Niklas,
I checked, but the counter I was trying to use in 4 phase does not work properly. I was trying to compare it with the PMP7969 circuit that referenced 4 Phase, but the Reference design page disappeared. Can I get some information?
Part Number: PMP7969 Hello team,
at my customer they are trying to implement a boost stage in order to make an electric motor work at 48V. They are looking for a four phase synchronous boost that does 12-24V to 48V.
I saw the PMP7969 but it only shows12V…
Part Number: PMP7969 Hello Team,
One of our customer required design file of PMP7969 for further analysis. The test results shows one phase is loaded with full power for short period of time. Can you please help with the same.
Regards,
Shinu Mathew
Hi
I am following PMP7969 (schematic here: https://www.ti.com/lit/df/snvr292/snvr292.pdf ) is for example a 4-phase design) , can you tell me what is the issue
going ahead with that since i already freeze my initial bom for boost converter
Also pls tell…
Hi Aiwen,
thank you for using the E2E forum.
When targeting in output power of 1kW you need to go with a multiphase design.
Below reference designs might be a good starting point:
https://www.ti.com/tool/PMP6712
https://www.ti.com/tool/PMP21943
https…
Hi Sankar,
Please take a look at the following reference design for an idea on how to implement this solution.
https://www.ti.com/tool/PMP7969
Please let me know if you have any other questions,
Richard
hi Tomas,
PMP7969 have the same input voltage, so it is parallel, But if you input not a same voltage, So you need to add additional current sharing circuit. like the voltage droop current sharing. （The output voltage decreases linearly as the load increases…
Hi Carlo,
Sure. Please check this reference design. https://www.ti.com/tool/PMP7969
I think it shows that recommended spec because it's together with the converter. It seems to disable this information when going into the controller section. https…
Hi SHH,
Yes, either LM5122 or LM25122 would do it. LM5122 has the switching frequency up to 1MHz while LM25122 is only 600kHz.
For the power level of around 500W, single phase is not enough. Webench does not support multi-phase design but we have some…
Hi Chee,
Helen is correct, the LM5122 is probably the best IC for this application. Reference Design PMP7969 is a good starting point for this application.
Please let us know if you have any questions.
Thanks,
Garrett
