Single phase CHADEMO at reduced charge rate. Possible???

[Marktm]

I use a J1772 adapter at charging stations to double the speed, pulling 6.6KW even though my car's onboard charger is limited to 3.3.

I've been looking at the Setec Power unit - do you think they are the manufacturer of your unit? They do look similar.
http://www.setec-power.com/product/278603-3069417.html



How do you use the J-1772 "adapter" to bypass the onboard charger?

[wmcbrine]

How do you use the J-1772 "adapter" to bypass the onboard charger?

EVSE -> adapter -> portable charger -> CHAdeMO -> car

[Marktm]

How do you use the J-1772 "adapter" to bypass the onboard charger?

EVSE -> adapter -> portable charger -> CHAdeMO -> car

Thanks - the actual adapter:

https://www.evseadapters.com/collections/ev-chargers-and-evses/products/j1772-to-14-50-adapter

I'd guess this is a clever use of the J-1772 protocols to allow the quick charger to actually generate the PWM signal equivalent to the max amperes (at 240 VAC split phase) that the DC quick charger can handle)?
Can someone with such expertise confirm this?

[TonyWilliams]

How do you use the J-1772 "adapter" to bypass the onboard charger?

EVSE -> adapter -> portable charger -> CHAdeMO -> car

Thanks - the actual adapter:

https://www.evseadapters.com/collections/ev-chargers-and-evses/products/j1772-to-14-50-adapter

I'd guess this is a clever use of the J-1772 protocols to allow the quick charger to actually generate the PWM signal equivalent to the max amperes (at 240 VAC split phase) that the DC quick charger can handle)?
Can someone with such expertise confirm this?

No, it's not that clever. They are putting a resistor on the pilot signal to make the J1772 EVSE think it's plugged into a car. The EVSE is on with the safety protocols defeated.

[Marktm]

EVSE -> adapter -> portable charger -> CHAdeMO -> car

Thanks - the actual adapter:

https://www.evseadapters.com/collections/ev-chargers-and-evses/products/j1772-to-14-50-adapter

I'd guess this is a clever use of the J-1772 protocols to allow the quick charger to actually generate the PWM signal equivalent to the max amperes (at 240 VAC split phase) that the DC quick charger can handle)?
Can someone with such expertise confirm this?

No, it's not that clever. They are putting a resistor on the pilot signal to make the J1772 EVSE think it's plugged into a car. The EVSE is on with the safety protocols defeated.

Tony - does this mean that the ampacity of the EVSE/cabling itself is communicated properly to the QC so that if the QC was sized above the EVSE's capacity It would still limit charge power for safe EVSE operation?