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1. 发明授权

US09325054B2 Power supply circuit for antenna, antenna control system, and digital communication device 有权
标题翻译：天线电源电路，天线控制系统和数字通讯设备
公开(公告)号：US09325054B2
公开(公告)日：2016-04-26
申请号：US13647403
申请日：2012-10-09
申请人： Novatek Microelectronics Corp.
发明人： Jia-Tzung Lin
IPC分类号： H01Q1/50 , H01Q1/00
CPC分类号： H01Q1/002 , H01Q1/50 , Y10T307/832
摘要： A power supply circuit, an antenna control system, and a digital communication device are provided. The power supply circuit is adapted to supply electronic power to an antenna and includes a power management circuit and a pin. The power management circuit is coupled between a power input terminal and a power output terminal. In a first mode, the pin receives a mode control signal to control the power management circuit to deliver or not deliver electronic power of a power source from the power input terminal to the power output terminal. In a second mode, the pin stops receiving the mode control signal and provides a detection signal, which indicates whether the power supply circuit is overloaded. Thereby, power switching of the antenna and an overload detection/notification function are accomplished by using the single pin.
摘要翻译：提供电源电路，天线控制系统和数字通信设备。电源电路适于向天线提供电力，并且包括电源管理电路和引脚。功率管理电路耦合在电源输入端子和功率输出端子之间。在第一模式中，引脚接收模式控制信号，以控制电源管理电路将电源的电力从电力输入端子输送或不传送到电力输出端子。在第二模式中，引脚停止接收模式控制信号并提供一个检测信号，该信号指示电源电路是否过载。因此，通过使用单个引脚来实现天线的功率切换和过载检测/通知功能。

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