Mar 29, 2022 #1 C cupoftea Advanced Member level 5 Joined Jun 13, 2021 Messages 2,923 Helped 59 Reputation 118 Reaction score 134 Trophy points 63 Activity points 15,498 Hi, We were doing a 2kW PSFB off 400V PFC. But realised the chip shortage may hit PSFB controllers. I count approx 2 or 3 PSFB controllers on the market, from ti.com and analog (ex Linear) So will also do plain FB, with simple ubiquitous controller. Would you say 2kW is the practical limit of a FB at 20kHz? Vout is +/-160V
Hi, We were doing a 2kW PSFB off 400V PFC. But realised the chip shortage may hit PSFB controllers. I count approx 2 or 3 PSFB controllers on the market, from ti.com and analog (ex Linear) So will also do plain FB, with simple ubiquitous controller. Would you say 2kW is the practical limit of a FB at 20kHz? Vout is +/-160V
Mar 29, 2022 #2 E Easy peasy Advanced Member level 6 Joined Aug 15, 2015 Messages 4,970 Helped 1,410 Reputation 2,820 Reaction score 2,052 Trophy points 1,393 Location Melbourne Activity points 27,247 One can take a push pull output of a standard controller - put it thru some gates and get full 4 channel phase shift outputs - plenty of examples on the net lower freq's are a good idea for +/- 160V out - Upvote 0 Downvote
One can take a push pull output of a standard controller - put it thru some gates and get full 4 channel phase shift outputs - plenty of examples on the net lower freq's are a good idea for +/- 160V out -
Mar 31, 2022 #3 B byjuncal Newbie level 6 Joined May 29, 2014 Messages 13 Helped 0 Reputation 0 Reaction score 9 Trophy points 1,283 Activity points 1,415 There is another PSFB alternative from renesas ISL6753. A LLC is not an option? https://www.renesas.com/us/en/produ...ollers/isl6753-zvs-full-bridge-pwm-controller Upvote 0 Downvote
There is another PSFB alternative from renesas ISL6753. A LLC is not an option? https://www.renesas.com/us/en/produ...ollers/isl6753-zvs-full-bridge-pwm-controller