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by coulomb
Tue Aug 28, 2018 5:06 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239306

Re: Troubleshooting and repair for On-board Charger, DC-DC Converter

electronpusher wrote:sorry for the late reply, here are some pics, ...

Interesting. I note some differences, for example two fuses versus one on the top board (middle photo).

And: the two fuses appear to be in series.

Huh?? How does that work?
by coulomb
Thu Aug 23, 2018 5:12 am
Forum: General Technical Discussions
Topic: my Miev will not charge
Replies: 153
Views: 71329

Re: my Miev will not charge

It's a shame they don't refurbish the old parts. Indeed. I guess it's a legacy of the ICE procedures; they are made in sufficient quantities that the parts are at least cheap to make (I didn't say cheap to sell), and besides ICE customers are used to forking over money regularly for oil changes and...
by coulomb
Thu Aug 16, 2018 10:28 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239306

Re: Troubleshooting and repair for On-board Charger, DC-DC Converter

I've run the repaired charger now for a few days, and it seems to be stable Excellent! , so smoke has come out so far ;-) You do realise that little words like "no" are sometimes quite important ;) 1) I've heard several people say that the charger will run even with a DC Voltage applied t...
by coulomb
Thu Aug 16, 2018 3:24 pm
Forum: EVSE (Charging Stations)
Topic: Charging i-Miev Troubles Using Inverter
Replies: 9
Views: 4748

Re: Charging i-Miev troubles

The problem may well be that the charger will use way more than a drill or even 800 watts.

You might need to modify the PWM ratio of the pilot signal to request say 6 A from the charger.

The question then would be, is this too slow to be useful.
by coulomb
Sun Aug 12, 2018 4:42 am
Forum: General / Main Owners Forum
Topic: help locating a used on board charger
Replies: 16
Views: 8065

Re: Help installing a used charger

So I have the "new" charger from a wrecked 2013. So of course I popped it open and here is what the inside looks like I note that there is no dog house on either the upper or middle boards. As alluded to before, no waffle plate™. The three large capacitors also have no dog house, and they...
by coulomb
Sun Aug 12, 2018 4:35 am
Forum: General / Main Owners Forum
Topic: help locating a used on board charger
Replies: 16
Views: 8065

Re: Help installing a used charger

So I have the "new" charger from a wrecked 2013. So of course I popped it open and here is what the inside looks like Wow! Really different. But still Nichicon, so hopefully essentially the same circuit. Looks like it might be easier to pull apart and repair, too. The black connector in t...
by coulomb
Sat Aug 11, 2018 7:25 am
Forum: Batteries and Battery Management
Topic: Firmware for charger, BMU, CMUs
Replies: 16
Views: 9671

Firmware for charger, BMU, CMUs

I'm feeling the need to upload some information from my brain to this forum. I'm a noob here, so please direct me to better places to store / discuss this information. I'm chasing some leads on MUT III update files. The MUT III is the Mitsubishi M ulti- U se T ester, although MUT perhaps refers to t...
by coulomb
Fri Aug 10, 2018 2:52 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239306

Re: Troubleshooting and repair for On-board Charger, DC-DC Converter

skylogger wrote: The writing on the part looks like BL 00 What value do you think this resistor should be?

One of Kenny's diagrams shows "8L00".

Kenny: can you explain how you get 8 mΩ from 8L00? The codes I know would show R008 or 008 or ̅0̅0̅8̅ .
by coulomb
Fri Aug 10, 2018 2:32 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239306

Re: Troubleshooting and repair for On-board Charger, DC-DC Converter

That is 8milli Ohms, 0.008 Ohms. That's another use for current limited power supplies. I set mine to about 5 V and 3.0 A; mine is digital and surprisingly accurate. I put it across the shunt, such that all the current from the power supply flows through the shunt. Then I use my multimeter on the m...
by coulomb
Fri Aug 10, 2018 2:07 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239306

Re: Troubleshooting and repair for On-board Charger, DC-DC Converter

Out here in the West, They quote 5 days delivery for RS and Element14 deliveries from the Eastern States, but usually take a whole week, and then it takes another day or 2 on top of that to get it from Perth to my place out here past the black stump out in the bush. :) I had to order some other par...

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