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公开(公告)号:US10958224B2
公开(公告)日:2021-03-23
申请号:US16903011
申请日:2020-06-16
Applicant: Infineon Technologies AG
Inventor: David Seebacher , Pantelis Sarais , Peter Singerl , Herwig Wappis
IPC: H04B1/00 , H03F3/24 , H03F1/02 , H04B1/401 , H03F3/193 , H03F3/19 , H03F3/45 , H04B1/38 , H04J3/02
Abstract: Devices and methods for generating a bias voltage for a transceiver operating in time division multiplexing operation, and corresponding transceivers are provided. In this case, the bias voltage is controlled in guard intervals between transmission and reception of signals by the transceiver.
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公开(公告)号:US10038404B1
公开(公告)日:2018-07-31
申请号:US15630242
申请日:2017-06-22
Applicant: Infineon Technologies AG
Inventor: Pantelis Sarais , David Seebacher , Peter Singerl , Herwig Wappis
CPC classification number: H03F1/0205 , H03F1/0266 , H03F1/0272 , H03F1/301 , H03F1/304 , H03F3/193 , H03F3/21 , H03F2200/375 , H03F2200/447 , H03F2200/451 , H03F2200/462 , H03F2200/468
Abstract: Techniques are provided for adapting a bias provided to a radio frequency (RF) power amplifier (PA), so as to achieve linear operation over a wide range of conditions. The techniques use open-loop temperature compensation based upon a sensed current during periods when the RF PA is active and inactive. A closed-loop control technique is enabled when the RF PA is inactive. The combined control techniques compensate for temperature variation as well as long-term drift of the semiconductor properties of the devices within the RF PA.
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公开(公告)号:US09590653B2
公开(公告)日:2017-03-07
申请号:US14745620
申请日:2015-06-22
Applicant: Infineon Technologies AG
Inventor: Peter Bogner , Clifford Fyvie , Niranjan Reddy Suravarapu , Herwig Wappis
CPC classification number: H03M1/468 , H03M1/002 , H03M1/0863 , H03M1/466
Abstract: Disclosed herein are embodiments of a precharge sample-and-hold circuit. The circuit has an input terminal, a reference voltage terminal and an output terminal. Further, the circuit has a sampling capacitance coupled between the input terminal and the reference voltage terminal and configured to provide the sample voltage when said sample-and-hold circuit is in a holding mode and a cancellation capacitance. Implementations of a precharge sample-and-hold circuit and of methods to operate a precharge sample-and-hold circuit in an analog/digital converter are also disclosed.
Abstract translation: 这里公开了预充电采样和保持电路的实施例。 该电路具有输入端子,参考电压端子和输出端子。 此外,电路具有耦合在输入端子和参考电压端子之间的采样电容,并且被配置为当所述采样保持电路处于保持模式和抵消电容时提供采样电压。 还公开了预充电采样保持电路的实现以及在模拟/数字转换器中操作预充电采样和保持电路的方法。
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公开(公告)号:US09444468B2
公开(公告)日:2016-09-13
申请号:US14138290
申请日:2013-12-23
Applicant: Infineon Technologies AG
Inventor: David Astrom , Andreas Fugger , Herwig Wappis
CPC classification number: H03L7/06 , H03K3/0231 , H03L7/00 , H03L7/02 , H03L7/18
Abstract: Oscillator devices and corresponding methods are disclosed. In some embodiments an apparatus includes an oscillator circuit arrangement, a frequency variable resistor circuit coupled to an output of the oscillator circuit arrangement and a reference resistor circuit. The apparatus further includes a sample and hold circuit, wherein a first input of the sample and hold circuit is coupled to an output of the reference resistor circuit and a second input of the sample and hold circuit is coupled to an output of the frequency variable resistor circuit, wherein an output of the sample and hold circuit is coupled with an input of the oscillator circuit arrangement.
Abstract translation: 公开了振荡器装置和相应的方法。 在一些实施例中,一种装置包括振荡器电路装置,耦合到振荡器电路装置的输出的频率可变电阻电路和参考电阻电路。 该装置还包括采样和保持电路,其中采样和保持电路的第一输入耦合到参考电阻电路的输出,并且采样和保持电路的第二输入耦合到频率可变电阻器 电路,其中所述采样和保持电路的输出与所述振荡器电路装置的输入耦合。
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公开(公告)号:US09374081B2
公开(公告)日:2016-06-21
申请号:US13745516
申请日:2013-01-18
Applicant: Infineon Technologies AG
Inventor: Johannes Janschitz , Herwig Wappis , Juergen Schaefer
IPC: H01H47/00 , H03K17/284 , H03K17/16
CPC classification number: H03K17/284 , H03K17/166
Abstract: An electronic switch includes a load path connected in series with the load and a drive terminal for receiving a drive signal. The electronic switch is operable to switch between a first operation state and a second operation state dependent on the drive signal. In a first switching cycle, the electronic switch is switched from the first operation state to the second operation state and a voltage across the load is evaluated during the first switching cycle in order to obtain a measured switching profile. The measured switching profile is compared with a reference profile. A drive profile dependent on the comparison is provided. The drive profile is used to drive the electronic switch in a second switching cycle after the first switching cycle. At least two drive parameters are used at different times in the at least one second switching cycle to drive the electronic switch.
Abstract translation: 电子开关包括与负载串联连接的负载路径和用于接收驱动信号的驱动端子。 电子开关可操作以取决于驱动信号在第一操作状态和第二操作状态之间切换。 在第一开关周期中,电子开关从第一操作状态切换到第二操作状态,并且在第一开关周期期间评估负载两端的电压,以获得测量的开关曲线。 将测量的切换轮廓与参考轮廓进行比较。 提供了依赖于比较的驱动器配置文件。 驱动器配置文件用于在第一个开关周期之后的第二个开关周期中驱动电子开关。 在至少一个第二切换周期中,在不同时间使用至少两个驱动参数来驱动电子开关。
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公开(公告)号:US20210297077A1
公开(公告)日:2021-09-23
申请号:US17341941
申请日:2021-06-08
Applicant: Infineon Technologies AG
Inventor: Peter Bogner , Herwig Wappis
IPC: H03K17/687 , H03F3/45
Abstract: Sampling circuits and methods for sampling are provided. In a first operating phase, sampling capacitors are coupled to inputs, and in a second operating phase, to a common-mode signal.
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公开(公告)号:US20200243152A1
公开(公告)日:2020-07-30
申请号:US16774722
申请日:2020-01-28
Applicant: Infineon Technologies AG
Inventor: Herwig Wappis , Peter Bogner
Abstract: A circuit having capacitors, and corresponding method. A circuit and corresponding methods are provided. A controller causes a first capacitor to be connected to an input connection in a first operating phase, charge to be transferred from the first capacitor to a second capacitor in a second operating phase and charge to be transferred from the second capacitor to a processing circuit in a third operating phase. The input connection and the second capacitor belong to different voltage domains.
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公开(公告)号:US10707645B2
公开(公告)日:2020-07-07
申请号:US15876770
申请日:2018-01-22
Applicant: Infineon Technologies AG
Inventor: Herwig Wappis , Fabrizio Cortigiani
Abstract: In one example, a method includes outputting, by a power supply and across a supply node and a ground node, a supply power signal; and selectively outputting, by a driver, a power signal to a second terminal of a light emitting element that has a first terminal and the second terminal, wherein the first terminal of the light emitting element is coupled to a load node, wherein a supply terminal of the driver is coupled to the supply node, wherein a ground terminal driver is coupled to the ground node, and wherein a difference between a potential of the supply node and a potential of the ground node is less than an activation voltage of the light emitting element.
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公开(公告)号:US10361694B2
公开(公告)日:2019-07-23
申请号:US15783718
申请日:2017-10-13
Applicant: Infineon Technologies AG
Inventor: Peter Bogner , Herwig Wappis
IPC: H03B1/00 , H03K3/00 , H03K17/08 , H02M3/07 , H03K17/081
Abstract: A switching circuitry is configured to provide, during an ON-State, a connection between a first port and second port and to electrically disconnect, during an OFF-State, the first port from the second port. The switching interface comprises a first and a second cascode transistor element having an applicable operational voltage and comprising a control terminal, wherein the first cascode transistor element is connected with the first port of the switching interface and wherein the second cascode transistor element is connected with the second port of the switching interface. The switching interface comprises a switching transistor element, having the applicable operational voltage and comprising a third control terminal, the switching transistor element being serially connected the first and second cascode transistor elements. A supply signal arrangement is connected to the control terminals and configured to provide control voltages to the control terminals.
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公开(公告)号:US20190058448A1
公开(公告)日:2019-02-21
申请号:US16106796
申请日:2018-08-21
Applicant: Infineon Technologies AG
Inventor: David Seebacher , Pantelis Sarais , Peter Singerl , Herwig Wappis
Abstract: Devices and methods for generating a bias voltage for a transceiver operating in time division multiplexing operation, and corresponding transceivers are provided. In this case, the bias voltage is controlled in guard intervals between transmission and reception of signals by the transceiver.
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