※ 引述《yaerse (寂寞時就擁著書本吧)》之銘言：
: The duty cycle is the ratio of the on-time to the period;
: the modulating frequency is the inverse of the period.
: 這段是講述PWM(pulse width module)的運作部分..
: duty cycle是指在一個周期中..電路為on的比例..
: =======================================以上是基本概念介紹
: 問題來了=================================================
: 第一句中..the ratio "of" the on-time "to" the period
: 第二句中..the inverse "of" the period
: 老實說已經有點搞不清楚啥時該用to..啥時該用of
: 就像很生活化的例子..
: the key to the door...
: the ticket to the concert..
: 有誰能幫我釐清一下阿...
: 小弟先謝過了..<(_ _)>
不知這樣有幫助嗎?
The duty cycle is (the ratio) of ("the on-time" to "the period");
the modulating frequency is (the inverse) of (the period).
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