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公开(公告)号：US12132488B2
公开(公告)日：2024-10-29
申请号：US18148845
申请日：2022-12-30
Applicant: Texas Instruments Incorporated
Inventor： Tolga Dinc , Sachin Kalia , Swaminathan Sankaran
CPC classification number: H03K5/00006 , G06F1/08 , H03H7/0115 , H03H7/0161
Abstract: Described embodiments include a circuit having a quadrature phase generator circuit having differential generator inputs, in-phase differential generator outputs and quadrature-phase differential generator outputs. A first frequency multiplier circuit has first differential multiplier inputs and a first multiplier output, wherein the first differential multiplier inputs are coupled to the in-phase differential generator outputs. A second frequency multiplier circuit has second differential multiplier inputs and a second multiplier output. The second multiplier differential inputs are coupled to the quadrature-phase differential generator outputs. A transformer includes a primary inductor and a secondary inductor, wherein the primary inductor is coupled between the first and second multiplier outputs, and the second inductor is coupled between an output voltage terminal and a ground terminal.
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公开(公告)号：US20220352853A1
公开(公告)日：2022-11-03
申请号：US17694953
申请日：2022-03-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sachin Kalia , Tolga Dinc , Swaminathan Sankaran
Abstract: A frequency multiplier includes an input section having inputs to receive an input signal having an input frequency, a mixer section, and an output section magnetically coupled to the input section and generating an output signal in response to the input signal. The mixer section may be coupled to the input section by a common mode node forming a path for a common mode current to flow to the mixer section and be magnetically coupled to the common mode node. The input section may generate a signal current, and the mixer section may be magnetically coupled to the input section and be directly capacitively coupled to the input section through a capacitor in a signal current path. The mixer section may have differential inputs capacitively coupled to the input section and also be coupled to the input section through a current path. A current helper section may be coupled to the current path.
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公开(公告)号：US20210203329A1
公开(公告)日：2021-07-01
申请号：US16731739
申请日：2019-12-31
Applicant: Texas Instruments Incorporated
Inventor： Salvatore Luciano Finocchiaro , Tolga Dinc , Gerd Schuppener , Siraj Akhtar , Swaminathan Sankaran , Baher Haroun
Abstract: In described examples, a method of operating a charge pump includes a first control signal deactivating a first transistor, and the first control signal's logical complement activating a second transistor to reset the first transistor's DC bias voltage. The first control signal's logical complement deactivates the second transistor, and the first control signal provides a bias voltage to the first transistor to activate it, causing current to be transmitted from an input voltage to an output terminal. A second control signal deactivates a third transistor, and the second control signal's logical complement activates a fourth transistor to reset the second transistor's DC bias voltage. The second control signal's logical complement deactivates the fourth transistor, and the second control signal provides a bias voltage to the third transistor to activate it, causing current to be transmitted from the output terminal to a ground.
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公开(公告)号：US20240430147A1
公开(公告)日：2024-12-26
申请号：US18341482
申请日：2023-06-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tolga Dinc , Swaminathan Sankaran , Baher Haroun
Abstract: An apparatus includes a controller having differential modulation control outputs and is configured to provide differential modulation signals having a particular frequency at the differential modulation control outputs. A differential modulator circuit is coupled between first differential terminals and second differential terminals. The differential modulator circuit has differential modulation control inputs coupled to the differential modulation control outputs. The differential modulator circuit is configured to: modulate first differential signals at the first differential terminals with the differential modulation signals having the particular frequency, provide the modulated first differential signals at the second differential terminals, modulate second differential signals at the second differential terminals with the differential modulation signals having the particular frequency, and provide the modulated second differential signals at the first differential terminals.
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公开(公告)号：US20220224295A1
公开(公告)日：2022-07-14
申请号：US17491096
申请日：2021-09-30
Applicant: Texas Instruments Incorporated
Inventor： Tolga Dinc , Swaminathan Sankaran , Baher Haroun
Abstract: An example apparatus includes a first transformer winding having a first proximal end and a first distal end and a second transformer winding having a second proximal end and a second distal end, the first proximal end having a first distance from the second proximal end and the first distal end having a second distance from the second distal end, the first distance less than the second distance.
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Patent Agency Ranking
公开(公告)号：US11171636B2
公开(公告)日：2021-11-09
申请号：US16585155
申请日：2019-09-27
Applicant: Texas Instruments Incorporated
Inventor： Tolga Dinc , Salvatore Luciano Finocchiaro , Gerd Schuppener , Siraj Akhtar , Swaminathan Sankaran , Baher Haroun
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to provide phase imbalance correction. An example system includes a phase detector to obtain a first signal and generate a first output, a comparator coupled to the phase detector, the comparator to generate a second output based on the first output, and an amplifier coupled to the comparator, the amplifier to adjust a first phase response of the first signal based on the second output.
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公开(公告)号：US20210203331A1
公开(公告)日：2021-07-01
申请号：US16731800
申请日：2019-12-31
Applicant: Texas Instruments Incorporated
Inventor： Salvatore Luciano Finocchiaro , Timothy Schmidl , Tolga Dinc , Gerd Schuppener , Siraj Akhtar , Swaminathan Sankaran , Baher Haroun
Abstract: In described examples, a method of operating a transceiver with a transmitter and a receiver includes generating a frequency reference. In the transmitter: A phase locked loop (PLL) generates a first voltage controlled oscillator (VCO) control voltage responsive to the frequency reference. A VCO in the transmitter generates a transmitter VCO signal responsive to the first VCO control voltage, and the PLL is locked to the transmitter VCO signal. In the receiver: A signal is received. A receiver VCO generates a receiver VCO signal responsive to the first or a second VCO control voltage. The receiver VCO signal is multiplied by the received signal to generate an I component, and by the received signal phase shifted by 90° to generate a Q component. The second VCO control signal is generated responsive to the I component and the Q component.
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公开(公告)号：US10979277B1
公开(公告)日：2021-04-13
申请号：US16731823
申请日：2019-12-31
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl , Swaminathan Sankaran , Gerd Schuppener , Salvatore Luciano Finocchiaro , Siraj Akhtar , Tolga Dinc , Anand Ganesh Dabak , Baher Haroun
Abstract: In described examples, a method of operating a transmitter includes generating a frequency reference signal having a reference frequency and outputting the frequency reference to a phase locked loop (PLL) that includes a voltage controlled oscillator (VCO). The VCO output is locked to the frequency reference signal to form a carrier signal. The transmitter receives an I input signal, a Q input signal, and a direct current (DC) leaky carrier signal. Either the I input signal or the Q input signal is added to the leaky carrier signal. The carrier signal is modulated with the resulting two signals using an I-Q mixer to generate a modulated signal that includes an unmodulated carrier signal component. The modulated signal is then transmitted.
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公开(公告)号：US20240072839A1
公开(公告)日：2024-02-29
申请号：US17823292
申请日：2022-08-30
Applicant: Texas Instruments Incorporated
Inventor： Sachin Kalia , Tolga Dinc , Swaminathan Sankaran , Sasank Garikapati
CPC classification number: H04B1/525 , H04B1/0057 , H03H7/463 , H04L5/14
Abstract: Electrical balance duplexers (EBDs). An example EBD includes a differential TX port coupled to a first coil, a differential RX port coupled to a second coil, a differential ANT port coupled to a third coil, and a differential BAL port coupled to a fourth coil. In some cases, the first and second coils are arranged such that magnetic flux cancellation is achieved between the two, thus isolating the TX port from the RX port. In some cases, DC isolation exists between the coils. During operation, the first coil may electromagnetically couple with the third coil and the fourth coil, and the second coil may electromagnetically couple with the third coil and the fourth coil. In some example cases, the first and second coils are each in their own metallization layer, and the third and fourth coils are in the same layer.
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公开(公告)号：US11716056B2
公开(公告)日：2023-08-01
申请号：US17109763
申请日：2020-12-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tolga Dinc , Sachin Kalia , Swaminathan Sankaran , Baher Haroun
CPC classification number: H03F1/02 , H03F3/45475 , H03F2200/09 , H03F2200/541
Abstract: A system includes a first differential amplifier and a first transformer with a primary coil coupled to an output of the first differential amplifier and with a secondary coil coupled to a load. The system also includes a second differential amplifier and a second transformer with a primary coil coupled to an output of the second differential amplifier and with a secondary coil coupled in series with the secondary coil of the first transformer. The system also includes a tuning network coupled to a center tap node between the secondary coil of the first transformer and the secondary coil of the second transformer.
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