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公开(公告)号:WO2016023007A1
公开(公告)日:2016-02-11
申请号:PCT/US2015/044374
申请日:2015-08-07
IPC分类号: H03K17/687 , H04B1/48
CPC分类号: H03K3/356104 , H01L23/66 , H01L2224/48091 , H01L2224/48227 , H01L2224/49171 , H01L2924/15184 , H02M3/07 , H03F3/189 , H03F3/24 , H03F2200/451 , H03K17/04 , H03K17/04123 , H03K17/6872 , H03K17/693 , H04B7/24 , H01L2924/00014
摘要: Apparatus and methods for controlling radio frequency (RF) switches are disclosed. Provided herein are apparatus and methods for controlling RF switches, in certain configurations, an RF system includes a charge pump for generating a charge pump voltage, an RF switch, a level shifter for turning on or off the RF switch, and a level shifter control circuit for controlling the level shifter. The charge pump receives a mode signal used to enable or disable the charge pump. Additionally, the level shifter receives power in part from the charge pump voltage, and controls the RF switch based on a switch enable signal. The level shifter control circuit receives the mode signal and biases the level shifter with a bias voltage that changes based on a state of the mode signal.
摘要翻译: 公开了用于控制射频(RF)开关的装置和方法。 本文提供了用于控制RF开关的装置和方法,在某些配置中,RF系统包括用于产生电荷泵电压的电荷泵,RF开关,用于导通或关闭RF开关的电平转换器,以及电平转换器控制 用于控制电平移位器的电路。 电荷泵接收用于启用或禁用电荷泵的模式信号。 此外,电平转换器部分地从电荷泵电压接收功率,并且基于开关使能信号来控制RF开关。 电平移位器控制电路接收模式信号并且以基于模式信号的状态改变的偏置电压来偏置电平移位器。