This entry is old and may contain information that is not up-to-date.

Power consumption

How much power do you need to run the drivers?

Frans Libental Report inappropriate content

Comments

  • Dear Frans,
    The power consumption when running LL10 at 1 kHz is about 4W. It scales with motor capacitance and approximately the stall force of the motor, e.g. 8W for LT20. The power mainly heats the electronics which may draw some overhead power of 0.5-2W per axis. The motors do not consume any power when standing still. The formula for cycling 4 capacitive motor phase are
    P = 4fCVU where C=motor capacitance, V=44V peak-to-peak and U=48V supply voltage. The LL10 has around 470 nF motor capacitance which gives P=4*1000*470E-9*44*48=4W. The capacitance of the motor increases around 7% per 10 degree increase in motor temperature.
    Best regards,
    Anders
    Anders

Add your comment or create a new post

Your name and post can be seen by everyone.Your e-mail will never be shown publicly.