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thank you for answers.it seem pretty logical to me and i will try to test it. do you know by chance any full-bridge driver IC which can sense the current in the coil and adjust the PWM accordingly ?
i hope all of those 15 in the dept are doing well with their current jobs now.
one reason that i belve the problem is the LC resonance is that i tried to ad some inductance in series with motor and i could see that the oscillation frequency changed consequently (according to the mentioned formula f=1/2pi*(L.c).
in case of slow regulation of the buck converter, what can i...
the Dc motor is used to adjust a valve . oscillations occur every time i want to change the valve position (by means of changing the dc current level feeding to the motor), the magnitude is sth about 15% of the steady state current and the osculations last about 0.2s to die.
i am using a buck...
Hello, i Have a full-bridge to drive a dc motor. the problem i have is that during a Current level change, i can notice oscillation with frequency in range of 50-100 HZ in the load current (switching frequency is 40KHz).
i guess the reason is the resonance between the Load inductance (12mH) and...
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