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i had reprojected door opener with at90can32 and avrstudio and avrgcc and it's very good, now board is better and powerful, now i seach for j1939 sae for spend state/conditions of doors.
to drive SM you have need a driver with a supply 4-30vcc , thera are some IC that maintein konstant current on motors winds.
with this you can drive your motor with 2000-4000 pulse /sec.
How is the connection and scheme on Drivers for Brushless motors to charge capacitors when the motor brake...?? ther's 3 diode that charge line capacitors ..boh?
i maked a bridge with 4 mosfet for DC motor , i control bridge througt MC in pwm and receive encoder A-B signal from axis'motor , now the noise of 25khz disturb too much the encoder's signal and software PID go-out , what must i connect on bridge to protect encoder's signals? thankyou
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