-
公开(公告)号：US20230246550A1
公开(公告)日：2023-08-03
申请号：US18155407
申请日：2023-01-17
发明人： Ranieri Guerra , Leandro Grasso , Serena Angela Versace , Francesca Giacoma Mignemi , Nunzio Greco
CPC分类号： H02M3/1582 , H02M1/08 , H02M3/157
摘要： In accordance with an embodiment, a method of operating a buck-boost power supply includes operating the buck-boost power supply in a buck mode by providing a PWM signal to a first half-bridge circuit, and turning on a charge transfer switch coupled between a first boosted supply node of a second driver circuit coupled to the first half-bridge circuit and a second boosted supply node of a second driver circuit coupled to a second half-bridge circuit when a voltage between the second boosted supply node and an output of the second half-bridge circuit is below a first threshold; and operating the buck-boost power supply in a boost mode by providing a PWM signal to the second half-bridge circuit, and turning on the charge transfer switch when the voltage between the first boosted supply node and an output of the first half-bridge circuit is below a second threshold.
-
2.发明授权公开(公告)号：US09432236B2
公开(公告)日：2016-08-30
申请号：US14829775
申请日：2015-08-19
发明人： Ranieri Guerra , Giuseppe Palmisano
CPC分类号： H04L27/364 , H03B19/14 , H03B21/025 , H03D7/165 , H04L7/0091 , H04L27/366
摘要： A calibration signal is generated from a modulating signal having a first frequency and a carrier signal having a second frequency. A single-sideband mixer modulates the modulating signal on the carrier signal. At least two frequency dividers by two connected in cascade receive the modulating signal modulated on the carrier signal and generate an output of the calibration signal.
摘要翻译： 从具有第一频率的调制信号和具有第二频率的载波信号产生校准信号。 单边带混频器调制载波信号上的调制信号。 串联连接的至少两个分频器接收在载波信号上调制的调制信号，并产生校准信号的输出。
-
公开(公告)号：US09820141B2
公开(公告)日：2017-11-14
申请号：US15279765
申请日：2016-09-29
IPC分类号： H04B7/00 , H04B1/06 , H04W8/22 , H04B17/318
CPC分类号： H04W8/22 , H03D1/2218 , H04B1/1615 , H04B17/318 , H04W52/0245
摘要： A receiver for digital signals includes a radiofrequency stage. A feedback loop controls an amplitude of a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of a baseband signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The amplitude of the modulated radiofrequency signal is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation. A switching circuit operates to selectively short circuit a resistive component of the RC network during receiver start-up.
-
4.发明申请公开(公告)号：US20160094378A1
公开(公告)日：2016-03-31
申请号：US14829775
申请日：2015-08-19
发明人： Ranieri Guerra , Giuseppe Palmisano
CPC分类号： H04L27/364 , H03B19/14 , H03B21/025 , H03D7/165 , H04L7/0091 , H04L27/366
摘要： A calibration signal is generated from a modulating signal having a first frequency and a carrier signal having a second frequency. A single-sideband mixer modulates the modulating signal on the carrier signal. At least two frequency dividers by two connected in cascade receive the modulating signal modulated on the carrier signal and generate an output of the calibration signal.
摘要翻译： 从具有第一频率的调制信号和具有第二频率的载波信号产生校准信号。 单边带混频器调制载波信号上的调制信号。 串联连接的至少两个分频器接收在载波信号上调制的调制信号，并产生校准信号的输出。
-
公开(公告)号：US10312821B2
公开(公告)日：2019-06-04
申请号：US15359213
申请日：2016-11-22
摘要： A rectifier cell includes a first cell branch and a second cell branch that extend in parallel between two opposite nodes receiving an a.c. signal. The first cell branch includes a first pair of transistors arranged with their current paths cascaded, with a first intermediate point in-between. The second cell branch includes a second pair of transistors arranged with their current paths cascaded, with a second intermediate point in-between. Each of the pairs of transistors includes a first transistor with a control terminal coupled to one of the two opposite nodes and a second transistor with a control terminal coupled to the other of the two opposite nodes. The bulks of the transistors receive voltages in order to vary the transistor threshold voltage by bringing the threshold voltage to a first value during forward conduction and to a second value during reverse conduction.
-
公开(公告)号：US10237725B2
公开(公告)日：2019-03-19
申请号：US15729852
申请日：2017-10-11
IPC分类号： H04B1/16 , H04B17/318 , H03D1/22 , H04W8/22 , H04W52/02
摘要： A receiver for digital signals includes a radiofrequency stage. A feedback loop controls a variable attenuation resistance applied to a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of an amplitude of the modulated radiofrequency signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The value of the variable resistance is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation.
-
公开(公告)号：US20170288568A1
公开(公告)日：2017-10-05
申请号：US15359213
申请日：2016-11-22
IPC分类号： H02M7/217
摘要： A rectifier cell includes a first cell branch and a second cell branch that extend in parallel between two opposite nodes receiving an a.c. signal. The first cell branch includes a first pair of transistors arranged with their current paths cascaded, with a first intermediate point in-between. The second cell branch includes a second pair of transistors arranged with their current paths cascaded, with a second intermediate point in-between. Each of the pairs of transistors includes a first transistor with a control terminal coupled to one of the two opposite nodes and a second transistor with a control terminal coupled to the other of the two opposite nodes. The bulks of the transistors receive voltages in order to vary the transistor threshold voltage by bringing the threshold voltage to a first value during forward conduction and to a second value during reverse conduction.
-
公开(公告)号：US20180035283A1
公开(公告)日：2018-02-01
申请号：US15729852
申请日：2017-10-11
CPC分类号： H04W8/22 , H03D1/2218 , H04B1/1615 , H04B17/318 , H04W52/0245 , Y02D70/00 , Y02D70/40
摘要： A receiver for digital signals includes a radiofrequency stage. A feedback loop controls a variable attenuation resistance applied to a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of an amplitude of the modulated radiofrequency signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The value of the variable resistance is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation.
-
公开(公告)号：US20170265062A1
公开(公告)日：2017-09-14
申请号：US15279765
申请日：2016-09-29
IPC分类号： H04W8/22 , H04B17/318
CPC分类号： H04W8/22 , H03D1/2218 , H04B1/1615 , H04B17/318 , H04W52/0245
摘要： A receiver for digital signals includes a radiofrequency stage. A feedback loop controls an amplitude of a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of a baseband signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The amplitude of the modulated radiofrequency signal is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation. A switching circuit operates to selectively short circuit a resistive component of the RC network during receiver start-up.
-
10.发明授权System for the correction of amplitude and phase errors of in-quadrature signals, corresponding receiver and method 有权用于校正正交信号幅度和相位误差的系统，相应的接收机和方法公开(公告)号：US09438463B2
公开(公告)日：2016-09-06
申请号：US14751339
申请日：2015-06-26
CPC分类号： H04L27/3836 , G06F17/10 , H03D3/009 , H04L27/0014 , H04L27/3863 , H04L2027/003
摘要： A system may be for the correction of phase and amplitude errors. The system may receive a first input signal and a second input signal and supply a first output signal and a second output signal. The system may include two adders that supply the first and second output signals, respectively. The two adders may be configured for computing a sum of the first and second input signals, and multiplying the weighted sum by a third coefficient. Moreover, the first coefficient or the second coefficient of the first adder may be variable to enable correction of the phase errors, and the third coefficient of the second adder may be variable to enable correction of the amplitude errors.
摘要翻译： 系统可以用于相位和振幅误差的校正。 系统可以接收第一输入信号和第二输入信号，并提供第一输出信号和第二输出信号。 该系统可以包括分别提供第一和第二输出信号的两个加法器。 两个加法器可以被配置用于计算第一和第二输入信号的和，并将加权和乘以第三系数。 此外，第一加法器的第一系数或第二系数可以是可变的，以使得能够校正相位误差，并且第二加法器的第三系数可以是可变的，以使得校正幅度误差。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.013 秒)
