Motor drive MOS reasons

田家一

Motor drive MOS reasons [Copy link]

What is the reason for sparks under the motor drive MOS tube?

fxyc87

Is it a MOS tube driving the motor? If it is a DC motor, you can connect a 104 capacitor at both ends of the motor.

chunyang

Usually the contact resistance is too large and unstable.

qwqwqw2088

If the spark is too large, you need to check the MOS tube circuit,
or delay the MOS conduction to limit the impact current.
Or replace the MOS

annysky2012

Is the welding unreliable?

se7ens

If a spike voltage is generated, it means that the circuit design has oscillation or overshoot.