雙正回授壓控震盪器

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

099109575

專利證號

I 398094

專利獲證名稱

雙正回授壓控震盪器

專利所屬機關 (申請機關)

國立交通大學

獲證日期

2013/06/01

技術說明

一種雙正回授壓控震盪器，包括一震盪電路及一交叉耦合對電路。震盪電路包括第一電晶體、第二電晶體、一電感及複數電容，第一電晶體及第二電晶體之閘極端相對並且分別耦接電感之兩端，其中電感及電容組成電感電容共振腔。交叉耦合對電路包括第三電晶體及第四電晶體，第三電晶體及第四電晶體之閘極端以交叉方式耦接電感之兩端，使得第三電晶體之閘極端耦接第二電晶體之閘極端，第四電晶體之閘極端耦接第一電晶體之閘極端，並且第三電晶體之汲極端耦接第一電晶體之源極端，第四電晶體之汲極端耦接第二電晶體之源極端。 A dual positive-feedbacks voltage controlled oscillators includes an oscillation circuit and a cross coupled pair circuit. The oscillation circuit includes a first transistor, a second transistor, an inductor and a plurality of capacitors. The gate of the first transistor and the gate of the second transistor are relative and coupled to two ends of the inductor. A LC tank consists of the inductor and the capacitors. The cross coupled pair circuit includes a third transistor and a fourth transistor. The gate of the third transistor and the gate of the fourth transistor are cross coupled to two ends of the inductor, and the gate of the third transistor is coupled to the gate of the second transistor and the gate of the fourth transistor is coupled to the gate of the first transistor. The drain of the third transistor is coupled to the source of the first transistor and the drain of the fourth transistor is coupled to the source of the second transistor.

備註

本部(收文號1080035227)同意該校108年6月4日交大研產學字第1081004865號函申請終止維護專利。

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