Other Parts Discussed in Thread: ISO7721
Hi,
1) there was a mistake in the reference file, so i bought these https://www.digikey.ca/en/products/detail/w%C3%BCrth-elektronik/750342879/8594521 with 1:3.5 ratio
instead of these, https://www.digikey.ca/en/products/detail/w%C3%BCrth-elektronik/750343725/9741983 with 1:3.9 ration. It seems the circuit is working fine ( i got -4v,and+12v) can someone confirm?
2) In there reference design, it is stated that (The short-circuit detection and two-level turn-off function on the gate driver card is not currently
supported . To avoid false alarms, unpopulate ISO7721.). But if a short-circuit happen, Q7, will start conduction and might get damaged if the system is not shutdown.
So are the protection on the main board (Dual active bright/Power board) enough? How are the Gate Driver turned off?
Thank you,
Vincent Beaulieu-Gagnon