PWM Control Method for High Speed Solenoid Valve Using High Speed Sampling.

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  • 高速電磁弁の高速サンプリングＰＷＭ制御方式
  • コウソク デンジベン ノ コウソク サンプリング PWM セイギョ ホウシキ

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Abstract

In this study, a new PWM method using high speed sampling strategy based on the presupposition of using a quick driving circuit which can rapidly switching the high speed solenoid valve as quickly as possible is proposed to improve the response precision and to reduce undesirable on-off characteristic in steady state of electro hydraulic servo system controlled by high speed solenoid valve. In addition, the decision method for PWM parameters such as gain, basic period of PWM and sampling time is cleared up. The experimental result shows that it is possible to achieve precise and quiet control without occurrence of limit cycle and without necessary of designing wide range dead band.

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