AN1947 problem!

jones23 · ‎2007-10-03

Posted on October 04, 2007 at 00:45

AN1947 problem!

jones23 · ‎2011-05-17

Posted on May 17, 2011 at 10:14

Dear sir..

My app:FAN . I need motor fully stop when use Active braking strategy. Below is AN1947's source code. But when motor have load , even set BRAKE_MIN_SPEED=1 ,than motor have inertia will let motor continue spin. I have try to modify BRAKE_VOLTAGE, but no effect and I have try MTC_GetRotorFreq() = 1 continue run ''MTC_Brake();'' three sec , but always no effect. Please provide me some advice. THANKS!!

if (MTC_GetRotorFreq() >= BRAKE_MIN_SPEED)

{

MTC_Brake();

}

jones23 · ‎2011-05-17

Posted on May 17, 2011 at 10:14

Dear GiGi sir..

Thanks for your advice. But AN1905's DC Current not good solution. Duty set mote than 96 and motor will vibrate. But An1947 active brake efficiency more than An1904. I will try to modify AN1947's source code. THANKS~~~

jones23 · ‎2011-05-17

Posted on May 17, 2011 at 10:14

Dear GiGi sir..

An1947's library not contain current control. Am I insert an1905's current source code to an1947's source code. Is that can correct work or not. Because an1905 is BLDC motor control and an1947 is PMAC control. Please provide me some advice. Thanks~~

Best Regards

Ferrari

jones23 · ‎2011-05-17

Posted on May 17, 2011 at 10:14

Dear Gforte sir..

Have anyone can provide me any advice?

Best Regards

Ferrari