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公开(公告)号：US20170117879A1
公开(公告)日：2017-04-27
申请号：US15293255
申请日：2016-10-13
Applicant: Texas Instruments Incorporated
Inventor： Sudipto Chakraborty , Vinod Mukundagiri
CPC classification number: H03J3/02 , H03D7/165 , H03J1/0008 , H03J7/04 , H03J2200/10 , H03J2200/28 , H03J2200/29 , H03L7/0995 , H04B1/10 , H04B5/0031 , H04B5/0037 , H04B5/0093
Abstract: Methods and circuitry for calibrating inductive-capacitive resonant circuits are disclosed. An example of the circuitry includes an inductive-capacitive (L-C) resonant circuit operable to receive signals in response to induced electromagnetic signals transmitted on a carrier frequency. A demodulator has a signal source and is operable to demodulate signals generated by the L-C resonant circuit. Switching circuitry is operable to inject signals generated by the signal source into the L-C resonant circuit during a calibration mode. The calibration mode is for adjusting the capacitance in the L-C resonant circuit to tune the L-C resonant circuit to the carrier frequency.
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公开(公告)号：US09941916B2
公开(公告)日：2018-04-10
申请号：US15609943
申请日：2017-05-31
Applicant: Texas Instruments Incorporated
Inventor： Sudipto Chakraborty , Vinod Mukundagiri
CPC classification number: H04B1/16 , H01L27/0251 , H01L27/0255 , H03G3/20 , H04B1/005 , H04B5/0075
Abstract: A programmable multi-band receiver includes a signal coupler, programmable signal scaler including a fixed capacitance part including a series set of switchable capacitor arrays positioned before Electrostatic Discharge (ESD) protecting circuitry coupled to a variable capacitance part after the ESD protecting circuitry, reconfigurable mixer array, then a baseband polyphase filter. The variable capacitance part includes a parallel set of paths each including a capacitor and at least one switch for setting a center frequency for band selection. The reconfigurable mixer array is coupled to receive phase signals from a local oscillator (LO) circuit and includes a plurality of mixer switch elements for providing image rejection. The received signal strength is adjusted by the programmable signal scaler so that the electrostatic discharge circuit (ESD) can operate without the need of a negative supply voltage.
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公开(公告)号：US09088158B2
公开(公告)日：2015-07-21
申请号：US14097990
申请日：2013-12-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kenneth J. Maggio , Umar Jameer Lyles , John H. Carpenter, Jr. , J. Randall Cooper , Vinod Mukundagiri
Abstract: One embodiment includes a power system. The system includes a power switch device that is activated to provide an output voltage to a load in response to an input voltage. The power switch device includes a control terminal and a bulk connection. The system also includes a reverse voltage control circuit configured to passively couple the input voltage to one of the control terminal and the bulk connection in response to a reverse voltage condition in which an amplitude of the input voltage becomes negative. The system further includes an output shutoff circuit configured to passively couple the output voltage to a neutral-voltage rail during the reverse voltage condition.
Abstract translation: 一个实施例包括电力系统。 该系统包括电源开关装置，其被激活以响应于输入电压向负载提供输出电压。 电源开关装置包括控制端子和大容量连接。 该系统还包括反向电压控制电路，其被配置为响应于输入电压的幅度变为负的反向电压状态而被动地将输入电压耦合到控制端子和体连接中的一个。 该系统还包括一个输出切断电路，配置成在反向电压条件期间将输出电压无功耦合到中性电压轨。
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Patent Agency Ranking
公开(公告)号：US10129059B2
公开(公告)日：2018-11-13
申请号：US15597986
申请日：2017-05-17
Applicant: Texas Instruments Incorporated
Inventor： Sudipto Chakraborty , Vinod Mukundagiri
Abstract: A multi-amplitude modulation receiver includes a signal coupler block coupled to a mixer array block receiving a first input signal from the signal coupler block and a second input from a LO circuit that provides N overlapping phase signals. Outputs of the N mixer elements are coupled to a baseband filter (BBF) block then to a decision threshold block including decision threshold elements including a signal input and at least one comparator receiving at least one VTH value. A phase ordering and mapper block selects M out of the N phases. A digital logic and control block is coupled to control a filter gain and corner frequency of the BBF block and control the VTH value for the decision threshold block which compares a signal received to the VTH value. Outputs from the decision threshold block are coupled inputs of an M-input decision combiner which provides a single data output.
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公开(公告)号：US20140160600A1
公开(公告)日：2014-06-12
申请号：US14097990
申请日：2013-12-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： KENNETH J. MAGGIO , Umar Jameer Lyles , John H. Carpenter, JR. , J. Randall Cooper , Vinod Mukundagiri
IPC: H02H3/18
Abstract: One embodiment includes a power system. The system includes a power switch device that is activated to provide an output voltage to a load in response to an input voltage. The power switch device includes a control terminal and a bulk connection. The system also includes a reverse voltage control circuit configured to passively couple the input voltage to one of the control terminal and the bulk connection in response to a reverse voltage condition in which an amplitude of the input voltage becomes negative. The system further includes an output shutoff circuit configured to passively couple the output voltage to a neutral-voltage rail during the reverse voltage condition.
Abstract translation: 一个实施例包括电力系统。 该系统包括电源开关装置，其被激活以响应于输入电压向负载提供输出电压。 电源开关装置包括控制端子和大容量连接。 该系统还包括反向电压控制电路，其被配置为响应于输入电压的幅度变为负的反向电压状态而被动地将输入电压耦合到控制端子和体连接中的一个。 该系统还包括一个输出切断电路，配置成在反向电压条件期间将输出电压无功耦合到中性电压轨。
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公开(公告)号：US20170104508A1
公开(公告)日：2017-04-13
申请号：US15140979
申请日：2016-04-28
Applicant: Texas Instruments Incorporated
Inventor： Vinod Mukundagiri , Sudipto Chakraborty
CPC classification number: H04B5/0031 , H04B5/0037
Abstract: A method, receiver and system for isolated wireless data transfer are disclosed. The receiver includes a switching mixer connected to receive a data signal and a local oscillator signal and to output a mixed differential signal, a programmable gain amplifier using an operational transconductance amplifier (OTA) and resistive feedback, the OTA connected to receive the mixed differential signal and to provide an amplified differential signal to a polyphase filter, and an analog demodulator to demodulate the output of the polyphase filter and provide digital output.
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公开(公告)号：US10374659B2
公开(公告)日：2019-08-06
申请号：US15140979
申请日：2016-04-28
Applicant: Texas Instruments Incorporated
Inventor： Vinod Mukundagiri , Sudipto Chakraborty
IPC: H04B5/00
Abstract: A method, receiver and system for isolated wireless data transfer are disclosed. The receiver includes a switching mixer connected to receive a data signal and a local oscillator signal and to output a mixed differential signal, a programmable gain amplifier using an operational transconductance amplifier (OTA) and resistive feedback, the OTA connected to receive the mixed differential signal and to provide an amplified differential signal to a polyphase filter, and an analog demodulator to demodulate the output of the polyphase filter and provide digital output.
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公开(公告)号：US09893716B2
公开(公告)日：2018-02-13
申请号：US15293255
申请日：2016-10-13
Applicant: Texas Instruments Incorporated
Inventor： Sudipto Chakraborty , Vinod Mukundagiri
CPC classification number: H03J3/02 , H03D7/165 , H03J1/0008 , H03J7/04 , H03J2200/10 , H03J2200/28 , H03J2200/29 , H03L7/0995 , H04B1/10 , H04B5/0031 , H04B5/0037 , H04B5/0093
Abstract: Methods and circuitry for calibrating inductive-capacitive resonant circuits are disclosed. An example of the circuitry includes an inductive-capacitive (L-C) resonant circuit operable to receive signals in response to induced electromagnetic signals transmitted on a carrier frequency. A demodulator has a signal source and is operable to demodulate signals generated by the L-C resonant circuit. Switching circuitry is operable to inject signals generated by the signal source into the L-C resonant circuit during a calibration mode. The calibration mode is for adjusting the capacitance in the L-C resonant circuit to tune the L-C resonant circuit to the carrier frequency.
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