openinverter forum

very detailed explanation if you want to test your inner Geek

Video Takeaways With Direct Links Back To The Video


Two Different Types of Charging Plugs

The EVSE Can Show One Of Six Different States / or Statuseses


EVSE Status: A, B, C, D, E, F

Status A

Status B

Status C/D

C = Charging
D = in the old days of lead acid batteries meant Charging with Ventilation

https://en.wikipedia.org/wiki/SAE_J1772 This has all the bits you are covering listed per topic.

How can we detect that an ac or dc charger is plugged?

Gregski wrote: ↑Wed Oct 04, 2023 2:32 pm very detailed explanation if you want to test your inner Geek

DC chargers go into 5% duty cycle, thus requesting digital communications instead of PWM.

Yes, and AC chargers have two possibilities: Either use a higher PWM ratio, which defines the allowed current, or apply 5% and announce in the high level communication (IP, TCP, V2GTP, EXI) during the negotiation of the charge parameters that they support AC.