Home Forums Hardware PWM high side drive control 

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    • DavidDavid
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      Post count: 6

      I use PWM high side drive to control 4 CDC shock absorbers, with a control current of 0-2A for each CDC shock absorber and a control frequency of 1500H,. I use a 12V switch mode power supply for power supply, with a rated current of 30 amperes. When the total control current of the 4 CDC shock absorbers exceeds 3.6 amperes, the controller will activate overload protection and the control current will rapidly decrease to zero. May I ask what is the reason for this. I don’t have this problem using PWM low side drive to control CDC shock absorbers.The controller model is FlexCase G

    • AmirFAmirF
      Moderator
      Post count: 25

      Hi David,

      Is it possible that the power supply is limiting current and forcing the VCU to reset?
      How inductive are the loads you are driving?
      Which outputs are you using currently?

      • This reply was modified 3 weeks, 5 days ago by AmirFAmirF.
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