公开(公告)号：EP1557680A1

公开(公告)日：2005-07-27

申请号：EP04425041.3

申请日：2004-01-26

Applicant: STMicroelectronics S.r.l.

Inventor： Cristaudo, Domenico ,  Scuderi, Antonino ,  Palmisano, Giuseppe

IPC: G01R21/10

CPC classification number: G01R21/10

Abstract: The present invention describes a device for detecting the power of a first signal (Vout) at a given frequency. Said device (10) comprises first means (1) suitable for detecting the envelope (Vi) of said first signal (Vout) and second means (2) coupled to said first means (1) and suitable for generating a second signal (Vdet) proportional to the average of the envelope (Vi) detected. The second signal (Vdet) is proportional to the square root of the average power (Poutm) of the first signal (Vout).

Abstract translation: 本发明描述了一种用于在给定频率下检测第一信号（Vout）的功率的装置。 所述装置（10）包括适合于检测所述第一信号（Vout）的包络线（Vi）的第一装置（1）和耦合到所述第一装置（1）并适于产生第二信号（Vdet）的第二装置（2） 与检测到的包络（Vi）的平均值成比例。 第二信号（Vdet）与第一信号（Vout）的平均功率（Poutm）的平方根成比例。