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1. 发明申请

US20190097587A1 VOLTAGE-TO-CURRENT CONVERTERS 审中-公开
公开(公告)号：US20190097587A1
公开(公告)日：2019-03-28
申请号：US15995355
申请日：2018-06-01
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Bharath Karthik VASAN , Srinivas K. PULIJALA , Steven G. BRANTLEY
IPC分类号： H03F1/32 , H03F3/45
CPC分类号： H03F1/3205 , H03F1/3211 , H03F3/211 , H03F3/45076 , H03F3/45085 , H03F3/45094 , H03F2203/45392 , H03F2203/45562 , H03F2203/45644
摘要： A voltage-to-current converter that reduces third harmonic distortion. An amplifier includes an input stage. The input stage includes a first voltage-to-current conversion stage and a second voltage-to-current conversion stage. The first voltage-to-current conversion stage is configured to provide an input to output gain with compressive nonlinearity. The second voltage-to-current stage is cascaded with the first voltage-to-current conversion stage. An input of the second voltage-to-current stage is connected to an output of the first voltage-to-current conversion stage. The second voltage-to-current conversion stage is configured to provide an input to output gain with expansive nonlinearity.

2. 发明申请

US20170359039A1 SOURCE-DEGENERATED AMPLIFICATION STAGE WITH RAIL-TO-RAIL OUTPUT SWING 审中-公开
公开(公告)号：US20170359039A1
公开(公告)日：2017-12-14
申请号：US15178251
申请日：2016-06-09
申请人： QUALCOMM Incorporated
发明人： Rahul KARMAKER
IPC分类号： H03F3/26 , H04W84/04 , H03F3/45 , H01L29/78
CPC分类号： H03F3/265 , H01L29/785 , H03F3/45 , H03F3/45179 , H03F3/45197 , H03F3/45264 , H03F2200/498 , H03F2203/45468 , H03F2203/45496 , H03F2203/45644 , H04W84/042
摘要： Certain aspects of the present disclosure generally relate to using cross-coupled transistors for source degeneration of an amplification stage. For example, the amplification stage generally includes a differential amplifier comprising transistors, cross-coupled transistors coupled to the differential amplifier, and an impedance coupled between drains of the cross-coupled transistors. In certain aspects, the differential amplifier comprises a push-pull amplifier, and the transistors of the push-pull amplifier comprise cascode-connected transistors.

3. 发明申请

US20170222604A1 POWER AMPLIFIER CIRCUIT 有权
公开(公告)号：US20170222604A1
公开(公告)日：2017-08-03
申请号：US15404961
申请日：2017-01-12
申请人： Panasonic Corporation
发明人： TAKAYUKI ABE , JUNJI SATO
IPC分类号： H03F1/30 , H03F3/24 , H03F3/45 , H03F3/193
CPC分类号： H03F1/301 , H03F3/193 , H03F3/245 , H03F3/45179 , H03F3/45188 , H03F2200/378 , H03F2200/405 , H03F2200/451 , H03F2200/453 , H03F2203/45576 , H03F2203/45644
摘要： A power amplifier circuit includes N (N is an integer equal to or greater than 2) power amplifier circuit cores, which in operation, amplify power of an input signal, N inductors, which in operation, are connected to the N power amplifier circuit cores, and ring-oscillator-type transconductance (gm) generation circuitry, which in operation, generates transconductance (gm) for compensating power loss of the N inductors.

4. 发明授权

US09667211B1 Variable gain and slope active topology 有权
公开(公告)号：US09667211B1
公开(公告)日：2017-05-30
申请号：US14868276
申请日：2015-09-28
申请人： Russell D. Wyse , Michael L. Hageman
发明人： Russell D. Wyse , Michael L. Hageman
IPC分类号： H03F3/191 , H03G3/00 , H03F3/19 , H03F3/45
CPC分类号： H03F3/19 , H03F1/0261 , H03F1/22 , H03F3/45085 , H03F2200/378 , H03F2203/45544 , H03F2203/45554 , H03F2203/45631 , H03F2203/45644 , H03G5/28
摘要： A circuit includes an electrical gain element, a variable reactance element, and a controller. The electrical gain element is arranged to receive and change an amplitude of a signal over a set frequency range. The variable reactance element is connected to the electrical gain element. The controller is configured to control the variable reactance element to have a reactance such that the electrical gain element has a set gain slope as a function of signal frequency over the set frequency range.

5. 发明申请

US20170104616A1 APPARATUS AND METHOD FOR COMBINING CURRENTS FROM PASSIVE EQUALIZER IN SENSE AMPLIFIER 有权
公开(公告)号：US20170104616A1
公开(公告)日：2017-04-13
申请号：US14880916
申请日：2015-10-12
申请人： QUALCOMM Incorporated
发明人： Eskinder Hailu , Hanan Cohen , Bupesh Pandita
IPC分类号： H04L25/03 , H04B1/04
CPC分类号： H04L25/03885 , G11C7/062 , G11C7/065 , G11C7/1084 , H03F3/24 , H03F3/45183 , H03F2203/45352 , H03F2203/45544 , H03F2203/45591 , H03F2203/45644 , H03G5/005 , H03G5/24 , H04B3/18
摘要： An apparatus configured to apply equalization to an input data signal and detect data based on the equalized data signal. The apparatus includes a passive equalizer comprising a first signal path configured to generate a first signal based on an input signal, and a second signal path configured to generate a second signal by filtering the input signal. The apparatus further includes a sense amplifier having an input circuit configured to generate a third signal related to a combination of the first and second signals, and a data detection circuit configured to generate data based on the third signal. The data detection circuit may be configured as a strong-arm latch. The third signal may be a differential current signal including positive and negative current components. The strong-arm latch generating data based on whether the positive current component is greater than the negative current component.

6. 发明申请

US20170085239A1 AMPLIFIER WITH BOOSTED PEAKING 有权
公开(公告)号：US20170085239A1
公开(公告)日：2017-03-23
申请号：US14857802
申请日：2015-09-17
申请人： QUALCOMM Incorporated
发明人： Xiaobin Yuan , Mangal Prasad , Joseph Natonio
IPC分类号： H03G3/30 , H03F3/193
CPC分类号： H03G3/3036 , H03F3/191 , H03F3/193 , H03F3/45197 , H03F2200/129 , H03F2200/372 , H03F2200/451 , H03F2203/45631 , H03F2203/45644 , H03F2203/45686 , H03F2203/45726 , H03H11/48 , H04B3/04 , H04L25/03878
摘要： In one implementation, an amplifier comprises a load circuit comprising a plurality of inductor cells, and a drive circuit configured to receive an input signal, and to drive the load circuit based on the input signal to generate an amplified signal. The amplifier also comprises a controller configured to tune a peaking gain of the amplifier by adjusting a number of the inductor cells that are enabled.

7. 发明授权

US09602066B2 Polarity-switching amplifier circuit 有权
公开(公告)号：US09602066B2
公开(公告)日：2017-03-21
申请号：US14404135
申请日：2014-03-20
申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
发明人： Isao Imazeki , Masaki Kanemaru
IPC分类号： H03F1/14 , H03F3/193 , H03F1/22 , H03F3/21 , H03F3/45
CPC分类号： H03F3/193 , H03F1/223 , H03F3/211 , H03F3/45179 , H03F2200/09 , H03F2200/222 , H03F2200/451 , H03F2200/541 , H03F2203/45394 , H03F2203/45644
摘要： A polarity-switching amplifier circuit includes: a first amplifying transistor and a second amplifying transistor, a transformer which includes a primary winding and a secondary winding, and a polarity-switching controller. An unbalanced input signal is input to the first amplifying transistor and the second amplifying transistor. The transformer receives an output signal of the first amplifying transistor and an output signal of the second amplifying transistor as a balanced signal input to the primary winding, and outputs a signal from the secondary winding. The polarity-switching controller turns on one of the first amplifying transistor and the second amplifying transistor and turns off the other thereof.

8. 发明授权

US09564858B2 Parallel resonant circuit 有权
标题翻译：并联谐振电路
公开(公告)号：US09564858B2
公开(公告)日：2017-02-07
申请号：US15016970
申请日：2016-02-05
申请人： SOCIONEXT INC.
发明人： Takafumi Nasu , Shinichiro Uemura , Atsushi Ohara
IPC分类号： H03F3/04 , H01P7/00 , H03F1/02 , H03F3/191 , H03H5/00 , H03J5/02 , H03F1/32 , H03F3/45 , H03F3/193 , H03H11/04
CPC分类号： H03F1/0205 , H03F1/3211 , H03F3/191 , H03F3/193 , H03F3/45179 , H03F3/45475 , H03F2200/294 , H03F2200/451 , H03F2203/45394 , H03F2203/45631 , H03F2203/45634 , H03F2203/45638 , H03F2203/45644 , H03F2203/45658 , H03F2203/45688 , H03F2203/45694 , H03F2203/45696 , H03F2203/45712 , H03F2203/45714 , H03F2203/45718 , H03F2203/45726 , H03H5/00 , H03H11/04 , H03J5/02 , H03J2200/10
摘要： A parallel resonant circuit with excellent distortion and saturation characteristics is provided at low power consumption. A first power-supply voltage is applied to the parallel resonant circuit. In the parallel resonant circuit, a variable resistor includes one or more parallel-connected branches. Each of the branches includes a series circuit of a resistor and a MOS switch. A second power supply supplies power of control signals applied to respective gates of the MOS switches, and supplies back gate voltages to the MOS switches. A power-supply voltage of the second power supply is higher than the first power-supply voltage.
摘要翻译：在低功耗下提供具有优异失真和饱和特性的并联谐振电路。第一电源电压被施加到并联谐振电路。在并联谐振电路中，可变电阻器包括一个或多个并联连接的分支。每个分支包括电阻器和MOS开关的串联电路。第二电源提供施加到MOS开关的各个门的控制信号的电源，并向MOS开关提供反向栅极电压。第二电源的电源电压高于第一电源电压。

9. 发明授权

US09425743B2 Buffer amplifier and trans-impedance amplifier including the same 有权
标题翻译：缓冲放大器和跨阻放大器包括相同
公开(公告)号：US09425743B2
公开(公告)日：2016-08-23
申请号：US14565939
申请日：2014-12-10
申请人： Electronics and Telecommunications Research Institute
发明人： Young Ho Kim , Sang Soo Lee
IPC分类号： H03F3/45 , H03F1/02 , H03F1/56 , H03F1/32 , H03F1/08
CPC分类号： H03F1/0205 , H03F1/086 , H03F1/3205 , H03F1/3211 , H03F1/56 , H03F3/45183 , H03F3/45197 , H03F3/45748 , H03F2200/387 , H03F2200/405 , H03F2200/453 , H03F2203/45112 , H03F2203/45296 , H03F2203/45301 , H03F2203/45374 , H03F2203/45644 , H03F2203/45652 , H03F2203/45702
摘要： Provided is a buffer amplifier. The buffer amplifier includes: a replica bias unit dividing an internal power voltage received from an internal power node to generate a bias voltage; an input unit including a first differential amplifier comparing a first differential input signal with the bias voltage to output a first internal signal and a second differential amplifier comparing a second differential input signal with the bias voltage to output a second internal signal; and an output unit including a third differential amplifier comparing the first internal signal with the second internal signal to output a first differential output signal and a second differential output signal.
摘要翻译：提供了一个缓冲放大器。缓冲放大器包括：复制偏置单元，分割从内部功率节点接收的内部电力电压以产生偏置电压; 输入单元，包括：第一差分放大器，将第一差分输入信号与偏置电压进行比较以输出第一内部信号;以及第二差分放大器，将第二差分输入信号与偏置电压进行比较，以输出第二内部信号; 以及输出单元，其包括将所述第一内部信号与所述第二内部信号进行比较的第三差分放大器，以输出第一差分输出信号和第二差分输出信号。

10. 发明申请

US20160099692A1 HIGH GAIN, HIGH SLEW RATE AMPLIFIER 有权
标题翻译：高增益，高速率放大器
公开(公告)号：US20160099692A1
公开(公告)日：2016-04-07
申请号：US14504540
申请日：2014-10-02
申请人： ANALOG DEVICES TECHNOLOGY
发明人： VINAYAK MUKUND KULKARNI
IPC分类号： H03F3/16
CPC分类号： H03F3/45183 , H03F2203/45248 , H03F2203/45626 , H03F2203/45644 , H03F2203/45646
摘要： In an example embodiment, an amplifier having high gain and high slew rate is provided and includes a pair of input transistors to which input voltage is applied, a pair of diode-connected loads coupled to the input transistors, at least one pair of current sources coupled to the diode-connected loads, and a bias control configured to turn off the at least one pair of current sources to enable high slew rate for the amplifier and to turn on the at least one pair of current sources to enable high gain for the amplifier. In specific embodiments, the current sources include transistors, the bias control controls a bias voltage to the current sources, and the bias voltage is driven to the supply voltage (VDD) to turn off the current sources.
摘要翻译：在示例实施例中，提供了具有高增益和高转换速率的放大器，并且包括一对输入电压施加到的输入晶体管，耦合到输入晶体管的一对二极管连接的负载，至少一对电流源耦合到所述二极管连接的负载，以及偏置控制，被配置为关断所述至少一对电流源，以使所述放大器能够实现高转换速率，并且接通所述至少一对电流源，以使所述至少一对电流源能够获得高增益放大器在具体实施例中，电流源包括晶体管，偏置控制控制到电流源的偏置电压，偏置电压被驱动到电源电压（VDD）以截止电流源。

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