Hello Yang,
I the datasheet for UCC28019A limits its application for less than 2kW and honestly for such high power levels I would recommend using an interleaved CCM controller like UCC28070A.
Please find attached a reference design for a 3kW power supply…
Part Number: UCC28070 Hi TI experts:
I use the UCC28070 in my 2KW AC/DC supply solution,
the boost Lm is about 22uH which calculated by the UCC28070 design tool。
but the in Webench the Lm is 22uH,
but I found the Lm is 200UH in PMP4259 which is the 3KW…
Hello John,
Thank you for your reply. Here is my schematic.In this schematic I don't use flyback power.
I use external auxiliary power module to supply control circuit power and not connect a high voltage input.
I run the pfc open loop with VCC=15V, Vsense…
Part Number: UCC28951 Other Parts Discussed in Thread: UCC28070 , , UCC28950 , UCC28070A One customer is looking for Full-Bridge TI-Design, required spec is below;
・Input: 385VDC from UCC28070 (375V ~ 395V)
・Output: 140V / 15.3A (2142W) ~ 21.4A (3000W)
…
Hi
You need a two stage approach, PFC + DC/DC isolation stage.
For the PFC stage I recommend the UCC28180 PFC controller or the UCC28070 two phase interleaved PFC stage controller
www.ti.com/.../description
www.ti.com/.../UCC28070
For the DC/DC stage…
Hi
I assume you need an 85Vac to 265Vac input voltage range?
The output is 1.2kW so it will most likely need a PFC front end to converter the AC line to a 380V to 400V BUS and then a phase shifted full bridge to converter the PFC DC voltage down to 12V…
Hi Dante,
Thanks for your interest in UCC28070. Starting on page 29 of the UCC28070 datasheet is a design example which can help you to select the passive components for the PFC stage. You also might have interest in PMP4259 which is a 3kW PFC stage…
PN Note: (-Q1) when auto PN is substituted
Description
Link
Input Voltage
Output Voltage
Output Power
OBC
EV Charging Station
DC-DC
Topology
LM5021 (-Q1) + UCC28180
PMP10215 Universal Input to 3.3V, 12V…