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by coulomb
Thu Aug 16, 2018 10:28 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger, DC-DC Converter
Replies: 111
Views: 3791

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: 8
Views: 116

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: 452

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: 452

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: 1
Views: 67

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, DC-DC Converter
Replies: 111
Views: 3791

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, DC-DC Converter
Replies: 111
Views: 3791

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, DC-DC Converter
Replies: 111
Views: 3791

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...
by coulomb
Thu Aug 09, 2018 6:21 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger, DC-DC Converter
Replies: 111
Views: 3791

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

... was not making contact to the pads. You can see it on the attached photo, between IC501 and D501. The resistor connects to pin 3 of IC501. It is a 39K resistor. Well spotted. IC501 seems to be some sort of non-active thing; it doesn't seem to have power supply pins. Unless they're pins 7 and 8,...
by coulomb
Thu Aug 09, 2018 1:42 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger, DC-DC Converter
Replies: 111
Views: 3791

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

I did KIEV's suggestion of applying 12v to PIN 7 of CN101 BUT NOT supplying the OBC RELAY 12V to pin 12. I checked all of the voltages across all the electrolytics on the top side of the top PCB, and still measured same voltages as before: Well, that still tells us something. Thanks. I also have a ...

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