1:DRV104作为高边驱动PWM应用于Solenoids, Valves,请问是否包括电磁比例阀?
2:DRV104的PWM震荡频率为500HZ-100KHZ可调,可是我看到的比例阀需求频率为40HZ-70HZ,是否有适合这款比例阀的PWM放大器?
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这颗器件不适合驱动比例阀,一般的比例阀是恒流驱动的;因此建议考虑功率放大器的方式,比如OPA547等。如下链接地址
应该可以驱动比例阀,参考wenku.baidu.com/.../8c3a05ef4afe04a1b071de7f.html。通过改变PWM占空比来改变平均电流的。只是是否有办法将DRV104的震荡频率降低些?