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公开(公告)号：US20180323752A1
公开(公告)日：2018-11-08
申请号：US15941554
申请日：2018-03-30
发明人： Leslie Paul Wallis
CPC分类号： H03F1/523 , H03F1/26 , H03F1/565 , H03F3/193 , H03F3/195 , H03F3/72 , H03F2200/111 , H03F2200/222 , H03F2200/294 , H03F2200/372 , H03F2200/411 , H03F2200/444 , H03F2200/451 , H03F2203/7209 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236
摘要： Radio frequency amplifiers with overload protection are provided herein. In certain configurations, an RF amplifier system includes an RF amplifier that receives an RF signal from an input terminal and that generates an amplified RF signal at an output terminal, and an overload detection circuit that generates a detection signal indicating a detected signal level of the RF amplifier. The RF amplifier includes an amplification device that amplifies the RF signal and a degeneration circuit that provides degeneration to the amplification device. Additionally, the detection signal is operable to control an amount of degeneration provided by the degeneration circuit so as to protect the RF amplifier from overload.
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公开(公告)号：US20180316314A1
公开(公告)日：2018-11-01
申请号：US15718585
申请日：2017-09-28
发明人： Ku Duck Kwon
CPC分类号： H03F1/26 , H03F1/223 , H03F3/193 , H03F2200/294 , H03F2200/451 , H03F2200/72 , H03F2200/75
摘要： Disclosed is a low noise amplifier including a current bleeding circuit. The low noise amplifier includes a common gate amplifier, a common source amplifier of which a gate is connected to a source of the common gate amplifier, a symmetric load connected to an output end of the common gate amplifier and an output end of the common source amplifier, and a current bleeding circuit of which one end is connected to the output end of the common source amplifier and another end is connected to the symmetric load, and including an active element and a load corresponding to the symmetric load.
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公开(公告)号：US20180294780A1
公开(公告)日：2018-10-11
申请号：US15928639
申请日：2018-03-22
发明人： Robert Bayruns , Tim Gittemeier
CPC分类号： H03F3/193 , H03F1/3205 , H03F1/483 , H03F3/1935 , H03F3/21 , H03F2200/102 , H03F2200/351 , H03F2200/36 , H03F2200/429 , H03F2200/451
摘要： The present invention breaks up the frequency bands which can be filtered by a simple low-loss band-pass or low pass filter. The second harmonic frequency is reduced by use of a non-linear clipper element which controls the driving waveform symmetry and can reduce the harmonics by as much as 5-15db which makes the filter much simpler and allows the amplifier to remain wide-band. The output waveform from the amplifier is symmetrical or nearly symmetrical.
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公开(公告)号：US20180294774A1
公开(公告)日：2018-10-11
申请号：US16009339
申请日：2018-06-15
发明人： Toshiki SESHITA , Yasuhiko KURIYAMA
CPC分类号： H03F1/0205 , H03F1/0261 , H03F1/223 , H03F3/193 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/451 , H03F2200/555 , H03F2203/7209 , H03F2203/7239
摘要： According to an embodiment, a high-frequency semiconductor amplifier circuit includes an input terminal and an output terminal. A gate of a first transistor is connected to the input terminal. A drain of the first transistor is connected to the output terminal. A second transistor is connected between a source of the first transistor and a reference potential terminal. A bias generation circuit has an input control signal terminal, a bias voltage terminal connected to the gate of the first transistor, a control voltage terminal connected to a gate of the second transistor, and an intermediate voltage terminal connected to the drain of the first transistor. The bias generation circuit supplies a control voltage, a bias voltage, and a first voltage according to the input control signal.
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公开(公告)号：US20180287564A1
公开(公告)日：2018-10-04
申请号：US15996828
申请日：2018-06-04
CPC分类号： H03F1/0222 , H03F1/0211 , H03F1/0244 , H03F1/0277 , H03F1/22 , H03F1/223 , H03F1/3241 , H03F3/193 , H03F3/213 , H03F3/245 , H03F3/45188 , H03F2200/102 , H03F2200/18 , H03F2200/451 , H03F2201/3233 , H03F2203/45048 , H03F2203/45481
摘要： An amplifier may include control circuitry that may track a first input signal parameter and, in response, adjust a value of a second input parameter. Input parameter tracking and adjustment may facilitate control of output parameters for the amplifier. For example, an envelope-tracking amplifier may track input signal amplitude and adjust other input parameters in response. The adjustments may facilitate control of output parameters, such as gain or efficiency. The amplifier may further include calibration circuitry to determine adjustment responses to various tracked input parameters.
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公开(公告)号：US20180278449A1
公开(公告)日：2018-09-27
申请号：US15995801
申请日：2018-06-01
CPC分类号： H04L27/14 , H03F1/0205 , H03F1/0277 , H03F3/19 , H03F3/193 , H03F3/72 , H03F2200/111 , H03F2200/165 , H03F2200/451 , H03F2203/7209 , H04B1/0053 , H04B1/16 , H04L5/001 , H04W84/042 , H04W88/02
摘要： A wireless terminal is provided that includes a first receiver that includes a first input unit configured to perform impedance matching on a first reception signal to output a first RF input signal. A first amplification unit is configured to amplify the first RF input signal to output one or more first RF output signals in an inter-band CA mode and an intra-band CA mode. A first output unit is configured to down-convert at least one of the one or more first RF output signals to a baseband. A second receiver includes a second output unit. In the intra-band CA mode, the one or more first RF output signals includes a first RF signal and a second RF signal, and the first amplification unit is further configured to provide the first output unit with the first RF signal and provide the second output unit with the second RF signal.
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公开(公告)号：US10084448B2
公开(公告)日：2018-09-25
申请号：US15176487
申请日：2016-06-08
发明人： Waclaw Godycki
IPC分类号： H03K17/687 , H03K5/08 , H03K17/74 , H03K17/691 , H01L29/778 , H01L29/20 , H03F3/217 , H03F3/193 , H02M3/158
CPC分类号： H03K17/6871 , H01L29/2003 , H01L29/778 , H02M3/158 , H03F3/193 , H03F3/2171 , H03F3/2173 , H03F2200/171 , H03F2200/331 , H03F2200/351 , H03F2200/451 , H03K5/08 , H03K17/063 , H03K17/691 , H03K17/74
摘要： A driver interface for a switch-based circuit includes an AC coupling capacitor, a first diode or a first series of diodes, and a second diode or a second series of diodes connected in series with the first diode or first series of diodes but with an opposing polarity. The AC coupling capacitor removes a DC voltage from an input bi-level drive signal that does not have the appropriate high and low drive levels needed to switch a FET in the switch-based circuit between fully ON and fully OFF states. The first diode or first series of diodes and the second diode or second series of diodes clamp the resulting AC-coupled drive signal to produce an output bi-level drive signal having the high and low drive levels needed to switch the FET between fully ON and fully OFF states. The driver interface maintains the high and low drive levels of the output bi-level drive signal irrespective of any changes made to the duty cycle or pulse density of the input bi-level drive signal.
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公开(公告)号：US10084420B2
公开(公告)日：2018-09-25
申请号：US14765851
申请日：2013-12-25
发明人： Ryo Kitamura
CPC分类号： H03F3/45179 , H03F1/42 , H03F3/193 , H03F3/195 , H03F3/45183 , H03F3/45475 , H03F2200/336 , H03F2200/405 , H03F2203/45038 , H03F2203/45051 , H03F2203/45212 , H03F2203/45352 , H03F2203/45591 , H03F2203/45594 , H03F2203/45601 , H03F2203/45702 , H03G1/0035 , H03G3/3036
摘要： Provided is a multistage amplifier that can achieve both utilizing in a broad bandwidth and suppressing gain reduction. The multistage amplifier includes a plurality of differential amplifiers which are connected in series; and a direct-current component limiter that cuts off a direct-current component of input signals, in which the direct-current component limiter is disposed between the plurality of differential amplifiers, and in which a transistor size of a first differential amplifier which is disposed immediately after the direct-current component limiter is equal to or greater than a transistor size of a second differential amplifier which is disposed two stages before the direct-current component limiter.
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公开(公告)号：US20180269873A1
公开(公告)日：2018-09-20
申请号：US15985642
申请日：2018-05-21
申请人： NXP USA, Inc.
发明人： Youri VOLOKHINE
IPC分类号： H03K17/689 , H03F3/193 , H01L23/00 , H03F3/213 , H01L23/66
CPC分类号： H03K17/689 , H01L23/66 , H01L24/05 , H01L24/09 , H01L24/45 , H01L24/48 , H01L24/49 , H01L2223/6611 , H01L2223/6655 , H01L2224/04042 , H01L2224/05554 , H01L2224/09505 , H01L2224/45015 , H01L2224/45124 , H01L2224/48091 , H01L2224/48137 , H01L2224/48472 , H01L2224/49052 , H01L2224/49096 , H01L2224/49175 , H01L2224/85399 , H01L2924/13091 , H01L2924/207 , H01L2924/30107 , H01L2924/3011 , H01L2924/30111 , H03F3/193 , H03F3/195 , H03F3/213 , H03F2200/451 , H03F2200/541
摘要： The invention provides a bond wire arrangement comprising a signal bond wire (1) for operably connecting a first electronic device (6) to a second electronic device (8), and a control bond wire (2) being arranged alongside the signal bond wire at a distance so as to have a magnetic coupling with the signal bond wire (1), and having a first end (11) coupled to ground, and a second end (12) coupled to ground via a resistive element (14). The proposed solution allows the control of the Q factor (losses) of wire bond inductors during assembly phase, which will save time and reduce overall design cycle as compared to known methods.
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公开(公告)号：US10079575B2
公开(公告)日：2018-09-18
申请号：US15382773
申请日：2016-12-19
申请人： Qorvo US, Inc.
CPC分类号： H03F1/0222 , H03F3/193 , H03F3/245 , H03F2200/102 , H03F2200/105 , H03F2200/451 , H03F2200/507 , H04W52/52
摘要： A PA power supply, which includes a first ET power supply, power supply control circuitry, a first PMOS switching element, and a second PMOS switching element, is disclosed. During a first operating mode, the power supply control circuitry selects an OFF state of the first PMOS switching element, selects an ON state of the second PMOS switching element, and adjusts a voltage of a first switch control signal to maintain the OFF state of the first PMOS switching element using a voltage at a source of the first PMOS switching element and a voltage at a drain of the first PMOS switching element; the PA power supply provides a first PA power supply signal; and the first ET power supply provides a first ET power supply signal, such that the first PA power supply signal is based on the first ET power supply signal.
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