公开(公告)号：US09379675B2

公开(公告)日：2016-06-28

申请号：US14282484

申请日：2014-05-20

申请人： ANALOG DEVICES GLOBAL

发明人： Eamon Nash ,  Mingming Zhao ,  Ovidiu Vasile Balaj ,  Peadar Antony Forbes ,  Claire Masterson

IPC分类号： H03F1/52 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H03F3/72

CPC分类号： H03F1/52 ,  H03F1/0222 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/192 ,  H03F2200/195 ,  H03F2200/426 ,  H03F2200/435 ,  H03F2200/451 ,  H03F2203/7215 ,  H03F2203/7221

摘要： Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one embodiment, an indication of average power, such as root mean squared (RMS) power of a radio frequency (RF) signal, can be compared to a first threshold and an indication of a peak RF power can be compared to a second threshold. When the indication of average power exceeds the first threshold, an average overdrive event can be detected. When the indication of peak power exceeds the second threshold, a peak overdrive event can be detected. If either a transient overdrive event or an average overdrive event is detected, a circuit, such as an amplifier, can be protected.

摘要翻译： 本公开的方面涉及保护诸如放大器的电路免受瞬态过驱动事件和/或平均过驱动事件的影响。 在一个实施例中，能够将射频（RF）信号的平均功率（诸如均方根（RMS））功率的指示与第一阈值进行比较，并且峰值RF功率的指示可以与第二阈值进行比较 。 当平均功率的指示超过第一阈值时，可以检测平均过驱动事件。 当峰值功率的指示超过第二阈值时，可以检测峰值过驱动事件。 如果检测到瞬态过驱动事件或平均过驱动事件，则可以保护诸如放大器的电路。

公开(公告)号：US20150236658A1

公开(公告)日：2015-08-20

申请号：US14282484

申请日：2014-05-20

申请人： Analog Devices Global

发明人： Eamon Nash ,  Mingming Zhao ,  Ovidiu Vasile Balaj ,  Peadar Antony Forbes ,  Claire Masterson

IPC分类号： H03F1/52 ,  H03F3/21 ,  H03F3/19

CPC分类号： H03F1/52 ,  H03F1/0222 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/192 ,  H03F2200/195 ,  H03F2200/426 ,  H03F2200/435 ,  H03F2200/451 ,  H03F2203/7215 ,  H03F2203/7221

摘要： Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one embodiment, an indication of average power, such as root mean squared (RMS) power of a radio frequency (RF) signal, can be compared to a first threshold and an indication of a peak RF power can be compared to a second threshold. When the indication of average power exceeds the first threshold, an average overdrive event can be detected. When the indication of peak power exceeds the second threshold, a peak overdrive event can be detected. If either a transient overdrive event or an average overdrive event is detected, a circuit, such as an amplifier, can be protected.

摘要翻译： 本公开的方面涉及保护诸如放大器的电路免受瞬态过驱动事件和/或平均过驱动事件的影响。 在一个实施例中，能够将射频（RF）信号的平均功率（诸如均方根（RMS））功率的指示与第一阈值进行比较，并且峰值RF功率的指示可以与第二阈值进行比较 。 当平均功率的指示超过第一阈值时，可以检测平均过驱动事件。 当峰值功率的指示超过第二阈值时，可以检测峰值过驱动事件。 如果检测到瞬态过驱动事件或平均过驱动事件，则可以保护诸如放大器的电路。