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garygid
Gold Member
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Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: EVSE source current

Tue Jul 13, 2010 5:39 pm

The EVSE probably needs "-12" as well as the "+12" DC supply.
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, sold in 2015
2010 Prius, 2014 silver Tesla S
Nissan EVSE, mod to 240/120v 16A
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle

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EVDRIVER
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Re: EVSE source current

Tue Jul 13, 2010 5:52 pm

LEAFer wrote:
AndyH wrote:The EVSE appears to use a separate power supply of a bit over 12VDC. We might want to check that before connecting to 240V. We may have to provide our own separate 12V source.

Are you surmising ... in the guts of the (simplified) emergency EVSE they assume 120V AC input, and use that to create 12VDC (and possibly 5VDC) to power the micro-controller ? Hmmm ... yes that could present a problem. (I was hoping for zero mods of the guts.) So, unless they design the US, Euro and Japanese versions input voltage tolerant and with PSU components that auto-adjust ... :(



Most 12v supplies are universal, if there is GFI then it will have more to do with that component.

AndyH
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Joined: Fri Apr 23, 2010 3:43 pm
Location: San Antonio

Re: EVSE source current

Tue Jul 13, 2010 6:29 pm

LEAFer wrote:
AndyH wrote:The EVSE appears to use a separate power supply of a bit over 12VDC. We might want to check that before connecting to 240V. We may have to provide our own separate 12V source.

Are you surmising ... in the guts of the (simplified) emergency EVSE they assume 120V AC input, and use that to create 12VDC (and possibly 5VDC) to power the micro-controller ? Hmmm ... yes that could present a problem. (I was hoping for zero mods of the guts.) So, unless they design the US, Euro and Japanese versions input voltage tolerant and with PSU components that auto-adjust ... :(


Something to verify before releasing the magic smoke. :(

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