valerun
Well-known member
Kris1 said:So early adopters would need to buy a separate programmer for firmware upgrades Valery?
no, we supply programming cables with all our products on request.
Kris1 said:So early adopters would need to buy a separate programmer for firmware upgrades Valery?
Kris1 said:So what price on a 45kw chademo box that runs from 360v DC input instead of 3 phase mains Valery?
Kris1 said:I didn't realise there was such a tight link between DC supply voltage & Leaf battery voltage Valery;
1) Is there some chargers-for-dummies primers for this technology you could suggest for me to read?
2) With a 415v~ 3 phase version, would the DC peak be 587v after rectification? If so how are you able to charge a Leaf pack with such a high DC source voltage?
TonyWilliams said:Kris1 said:I didn't realise there was such a tight link between DC supply voltage & Leaf battery voltage Valery;
1) Is there some chargers-for-dummies primers for this technology you could suggest for me to read?
2) With a 415v~ 3 phase version, would the DC peak be 587v after rectification? If so how are you able to charge a Leaf pack with such a high DC source voltage?
The AC input voltage has very little to do with the DC output. There are DC chargers operating on 200v, 208v "single" and three phase, 220v (380 volt three phase), 230v (400 volt three phase) 240 volts, and 277 volts per three phase (480 volts), and 348v (600 volts).
Did I miss any?
Kris1 said:I didn't realise there was such a tight link between DC supply voltage & Leaf battery voltage Valery;
1) Is there some chargers-for-dummies primers for this technology you could suggest for me to read?
2) With a 415v~ 3 phase version, would the DC peak be 587v after rectification? If so how are you able to charge a Leaf pack with such a high DC source voltage?
Kris1 said:So, in terms of the Leaf pack voltage & the charger supply voltage, there is flexibility in an AC powered charger's design not present in a charger running from a fixed voltage DC supply?
valerun said:GregH said:And that's not overkill?valerun said:We would have: 8 ADC, 16 digital, 4 CAN, 6 UART, 4 SPI, 6-8 programming / power.
not really. note that numbers are PIN counts, not port counts. E.g., 4 CAN pins are just 2 CAN channels, 6 UART pins are 3 UART channels.
In our chargers, 5 analog pins are used in a basic configuration (input voltage, output voltage, output current, heatsink temp, inductor temp). Plus 8-10 digital pins are used. So with 8 analog and 16 digital we are just building a small amount of headroom.
re overkill on a chip side - CAN + WiFi + basic charger operation takes ~120KB in flash footprint already - and that's before we handle any bidirectional comms and user auth workload...
valerun said:so... laying out a 144-ball LFBGA has proven to be a bit challenging ;-)
So we have done a first pass at the micro-Due board using a 144 LQFP package (same as in a Due). V0 below (edited since original post to add an EEPROM 64kbit chip and a few other things). Would appreciate feedback from any embedded gurus who could be lurking here...
Will try to get this finalized in the next 7 days. Our PCB house confirmed that they can build this. Should be fun.
V
martinwinlow said:"So what price on a 45kw chademo box that runs from 360v DC input instead of 3 phase mains Valery?...
Hi Kris - Please check out these products on our site (not everything is fully available for shipping yet but we are taking pre-orders):
http://emotorwerks.com/products/online-store/product/show/75-new-emotorwerks-quickcharge-25000-a-25kw-pfc-charger" onclick="window.open(this.href);return false;
…"
Hi, No mention on the links of chademo (or any other type of standard connector, FTM). Do these kits come with connectors or even the Chademo connector?
Regards, MW.
valerun said:Wow 3 months without a single post... ;-)
The system is now packaged up - http://youtu.be/ddKkffUKZWE" onclick="window.open(this.href);return false; for the latest video update. 25kW Leaf Charging
Val
philipscoggins said:Looks like the 25kw w/ needed chademo addons would cost about $4,000.
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