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專利授權區

專利授權區
專利名稱(中)	功率電晶體之驅動電路及其控制方法
專利名稱(英)	DRIVING CIRCUIT OF POWER TRANSISTOR AND CONTROLLING METHOD THEREOF
專利家族	中華民國：(公開號)
專利權人	國立清華大學 100.00%
發明人	徐碩鴻,黃敬源
技術領域	通信傳輸,能源科技,資訊工程,電子電機

專利摘要(中)
本揭示內容提供一種功率電晶體之驅動電路，其包含閘極驅動電路、控制電路及功率電晶體。閘極驅動電路輸出驅動電壓訊號與脈寬調變訊號。控制電路耦接閘極驅動電路，且包含電壓控制器、第一電晶體及第二電晶體。電壓控制器輸出控制訊號。第一電晶體根據脈寬調變訊號導通或截止。第二電晶體根據脈寬調變訊號與控制訊號導通或截止。功率電晶體耦接閘極驅動電路與控制電路，並受驅動電壓訊號控制。當第一電晶體導通或第一電晶體與第二電晶體均導通時，驅動電壓訊號被拉動至目標電壓準位。藉此，可減少功率電晶體的開關功率損耗。

專利摘要(中)

本揭示內容提供一種功率電晶體之驅動電路，其包含閘極驅動電路、控制電路及功率電晶體。閘極驅動電路輸出驅動電壓訊號與脈寬調變訊號。控制電路耦接閘極驅動電路，且包含電壓控制器、第一電晶體及第二電晶體。電壓控制器輸出控制訊號。第一電晶體根據脈寬調變訊號導通或截止。第二電晶體根據脈寬調變訊號與控制訊號導通或截止。功率電晶體耦接閘極驅動電路與控制電路，並受驅動電壓訊號控制。當第一電晶體導通或第一電晶體與第二電晶體均導通時，驅動電壓訊號被拉動至目標電壓準位。藉此，可減少功率電晶體的開關功率損耗。

專利摘要(英)
The present disclosure provides a driving circuit of a power transistor, which includes a gate driving circuit, a controlling circuit and the power transistor. The gate driving circuit outputs a driving voltage signal and a pulse width modulation signal. The controlling circuit is coupled to the gate driving circuit and includes a voltage controller, a first transistor and a second transistor. The voltage controller outputs a controlling signal. The first transistor is turned on or off according to the pulse width modulation signal. The second transistor is turned on or off according to the pulse width modulation signal and the controlling signal. The power transistor is coupled to the gate driving circuit and the controlling circuit, and controlled by the driving voltage signal. In response to determining that the first transistor is turned on or both the first transistor and the second transistor are turned on, the driving voltage signal is pulled to a target voltage level. Therefore, the switching power losses of the power transistor can be reduced.

專利摘要(英)

The present disclosure provides a driving circuit of a power transistor, which includes a gate driving circuit, a controlling circuit and the power transistor. The gate driving circuit outputs a driving voltage signal and a pulse width modulation signal. The controlling circuit is coupled to the gate driving circuit and includes a voltage controller, a first transistor and a second transistor. The voltage controller outputs a controlling signal. The first transistor is turned on or off according to the pulse width modulation signal. The second transistor is turned on or off according to the pulse width modulation signal and the controlling signal. The power transistor is coupled to the gate driving circuit and the controlling circuit, and controlled by the driving voltage signal. In response to determining that the first transistor is turned on or both the first transistor and the second transistor are turned on, the driving voltage signal is pulled to a target voltage level. Therefore, the switching power losses of the power transistor can be reduced.

聯絡資訊
承辦人姓名	李曉琪
承辦人電話	03-5715131 #31061
承辦人Email	hsiaochi@mx.nthu.edu.tw