active circuit的用法和樣例：
例句
- The invention discloses a current source circuit comprising a first transistor and at least one second transistor.
本發明公開了一種電流源電路，此電流源電路包括第一晶體管和至少一第二晶體管。 - The half-bridge series resonant current source realizable circuit is presented and its operation principle and timing logic and the design of the key parameters are introduced.
給出了實現這種拓撲結構的半橋串聯諧振電流源電路，詳細介紹了該電路的工作原理及時序，並對其關鍵參數進行了設計。
