gwhy! wrote:do anyone know anything about these controllers ? they seem to be a good price..
http://stores.ebay.co.uk/VirtualVillage ... =241440152
bobale wrote:So you're saying this 48V 600W controller is working in sensorless mode?
zombiess wrote:Anyone know what board is used and if it's programmable?
LHelge wrote:I also bought one of these a while ago, the 48 V 350 W version. It had 6 x STP75N75 as a power stage and is controlled by a STM8 microcontroller. I'm pretty sure you can't program them in the same way as the Infineon controllers but you can download source code for a BLDC controller from ST's homepage. Maybe the designers of this controller have used it without modifying it to much, then you could write your own firmware.
I replaced the FETs in mine with IRFB3006 instead, beefed up all current traces with 3 x 1,5 mm copper wire and replaced all high power cables with 6 mm^2. Yesterday I tried it for the first time with a Turnigy 80-100 rewinded for 90 rpm/V. 350 W @ 48 V would mean a current limit of ~7 A which wasn't enough to start the motor in sensorless mode. I had to manually place the rotor in balance between two cogging locations first to get it running. After modifying the current shunt to approximately 1/3 of the resistance the motor started up every try. My next step is get the sensors, that I installed on the Turnigy, running.
I plan to run this controller on 12S LiPo, how many amps do you think it could handle with my setup? Could I push it up to 50 A?
sin = getADSin();
cos = getADCos();
deg = atan2(sin, cos) * 180 / pi;
PORTA = (deg > 120 && deg < 300);
PORTB = (deg > 180 && deg < 360);
PORTC = (deg > 240 && deg < 60;
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