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1.发明申请RF AMPLIFICATION DEVICE WITH POWER PROTECTION DURING HIGH SUPPLY VOLTAGE CONDITIONS 有权在高电压条件下具有电源保护功能的射频放大器件公开(公告)号：US20150070098A1
公开(公告)日：2015-03-12
申请号：US14478822
申请日：2014-09-05
Applicant: RF Micro Devices, Inc.
Inventor： David Q. Ngo , Michael B. Thomas , Praveen Varma Nadimpalli
CPC classification number: H03F1/0222 , H03F3/19 , H03F3/21 , H03F2200/408 , H03F2200/451 , H03F2203/21193
Abstract: Radio frequency (RF) amplification devices are disclosed along with methods of providing power to an RF signal. In one embodiment, an RF amplification device includes an RF amplification circuit and a voltage regulation circuit. The RF amplification circuit includes a plurality of RF amplifier stages coupled in cascade. The voltage regulation circuit is coupled to provide a regulated voltage to a driver RF amplifier stage. The voltage regulation circuit is configured to generate the regulated voltage so that the maximum output power of the RF amplification circuit is provided approximately at a first power level while the supply voltage is above a threshold voltage level. The first power level should be within the physical capabilities of the RF amplification circuit, and thus, the RF amplification circuit is prevented from being damaged once the supply voltage is above the threshold voltage level.
Abstract translation: 公开了射频（RF）放大装置以及向RF信号提供电力的方法。 在一个实施例中，RF放大装置包括RF放大电路和电压调节电路。 RF放大电路包括级联耦合的多个RF放大器级。 电压调节电路被耦合以向驱动器RF放大器级提供调节电压。 电压调节电路被配置为产生调节电压，使得RF放大电路的最大输出功率大致处于第一功率电平，而电源电压高于阈值电压电平。 第一功率电平应在RF放大电路的物理能力之内，因此，一旦电源电压高于阈值电压电平，就可以防止RF放大电路的损坏。
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公开(公告)号：US09793860B2
公开(公告)日：2017-10-17
申请号：US14478822
申请日：2014-09-05
Applicant: RF Micro Devices, Inc.
Inventor： David Q. Ngo , Michael B. Thomas , Praveen Varma Nadimpalli
CPC classification number: H03F1/0222 , H03F3/19 , H03F3/21 , H03F2200/408 , H03F2200/451 , H03F2203/21193
Abstract: Radio frequency (RF) amplification devices are disclosed along with methods of providing power to an RF signal. In one embodiment, an RF amplification device includes an RF amplification circuit and a voltage regulation circuit. The RF amplification circuit includes a plurality of RF amplifier stages coupled in cascade. The voltage regulation circuit is coupled to provide a regulated voltage to a driver RF amplifier stage. The voltage regulation circuit is configured to generate the regulated voltage so that the maximum output power of the RF amplification circuit is provided approximately at a first power level while the supply voltage is above a threshold voltage level. The first power level should be within the physical capabilities of the RF amplification circuit, and thus, the RF amplification circuit is prevented from being damaged once the supply voltage is above the threshold voltage level.
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