Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Posted on September 28, 2014 at 16:21Gigi: I'm in the Bus Voltage Sensing parameter settings of Workbench when the input voltage is 24V, I am a divider resistor R1 = 51K R2=1K, how to calculate excuse me my Bus voltage sensing network parti...
Posted on September 27, 2014 at 14:10I am currently trying to deploy the STM32 foc library (v3.4 currently, v4.0 available not not tried yet) on a custom designed board. The motor does not startup, and I have tracked down the problem to a polarity m...
Posted on September 24, 2014 at 10:26Hi,I'm controlling my PMSM at zero speed. While I'm trying to move its shaft I don't want my motor to generate its maximum torque to resist my movement but the limited one. Everything went fine with classic contr...
Posted on August 27, 2013 at 10:05I am experiencing problem with the current regulation of the L6472. We made 2 series of boards, one was fitted with L6474s, the other one with L6472s. The board has 8 channels, supply voltage is 24V / 3.3V, timing p...
Posted on September 18, 2014 at 17:37Hello!I bought 3 Eval-L9942 boards. I connected supply voltage (5V). Enable (connect to 5V) and a step clock (5V. 100Hz). The VS supply is 12V.The motor i have connected does not move. All outputs are at 12V cons...
Posted on August 29, 2014 at 03:19timer 1 output compare to generate Step output for stepper motorI am using timer1 channel 1 as output compare, to generate a pulse of variable period.Desire output – In the beginning the output remain low for 4 ms(...
Posted on September 15, 2014 at 16:23I'm investigating using the L6470 for an multi-axis application. Please let me now if it is possible using SPI to position multiple motors according to a motion profile/position table at constant speed. i.e. impl...
Posted on October 22, 2013 at 20:37I've been quite successful at controlling the L6470 stepper driver chip from my embedded ARM processor for all features other than the sensorless stall detection feature. I'm hoping that I'm missing something and t...
Posted on September 03, 2014 at 09:59Hello!In my application I send GoTo(ABS_POS) commands when stepper motor is running at constant speed, when BUSY flag is high, so I'm sure that the target speed is reached. And everything is going well most of ti...
Posted on August 03, 2014 at 06:34hello all : I,recently?found that the formula about duty cycle computation in the SW do not accord with that in the user manual . Sector ????TimePhA=T/8+?T+X-Z?/2 in the SW,however,Sector ????TimePhA=?T...
