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公开(公告)号：US20240310432A1
公开(公告)日：2024-09-19
申请号：US18344623
申请日：2023-06-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Gautam Salil NANDI , Rajavelu THINAKARAN , Hariharan SRINIVASAN
CPC classification number: G01R31/2834 , G01R19/18 , G01R35/005 , H03F3/04
Abstract: In some examples, a method of performing measurement of a device under test (DUT) coupled to a connector includes determining a first voltage signal representative of a current of the DUT, the current flowing through the connector. The method also includes determining a second voltage signal representative of a voltage of the DUT, as provided at the connector. The method also includes determining a calibration current according to the first voltage signal. The method also includes modifying measurement of the DUT according to the calibration current.
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公开(公告)号：US12057814B2
公开(公告)日：2024-08-06
申请号：US17880142
申请日：2022-08-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Yang Xu , William Bright , Hasibur Rahman
CPC classification number: H03F3/04 , H03F2200/129 , H03F2200/165
Abstract: A circuit having an input and an output, the circuit comprising: a first amplifier having a first input, a second input and an output coupled to the output of the circuit; a first capacitor having a first terminal coupled to the first input of the first amplifier and a second terminal coupled to the output of the first amplifier; a first resistor having a first terminal coupled to the first input of the first amplifier and a second terminal; a buffer having an output coupled to the second terminal of the first resistor and an input; a second resistor having a first terminal coupled to the output of the first amplifier and a second terminal coupled to the input of the buffer; a second capacitor coupled between the input of the buffer and ground; and a third resistor coupled between the input of the buffer and the input of the circuit.
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公开(公告)号：US20240186951A1
公开(公告)日：2024-06-06
申请号：US18070940
申请日：2022-11-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tyler James Archer , Bharath Karthik Vasan
CPC classification number: H03F1/0205 , H03F1/32 , H03F3/04
Abstract: Examples of circuits, amplifiers, and stages thereof are provided that improve amplifier stability margins while maintaining signal fidelity. Example structures include pre-driver circuitry; a compensation node exhibiting high impedance during operation; a feedforward driver coupled to the pre-driver circuitry; and first and second signal mirrors; and first and second output drivers, each having a control terminal. Example structures further include feedforward circuitry in which a first node thereof is coupled to the output of the feedforward driver, a second node thereof is coupled to the control terminal of the first output driver, and a third node thereof is coupled to the control terminal of the second output driver; and compensation circuitry in which a first node thereof is coupled to the compensation node, a second node thereof is coupled to a first internal node of the first signal mirror, and a third node thereof is coupled to a second internal node of the second signal mirror.
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公开(公告)号：US20240154592A1
公开(公告)日：2024-05-09
申请号：US18505734
申请日：2023-11-09
Inventor： Andrew J. HOWLETT , Michael CHANDLER-PAGE , David P. SINGLETON , Erich P. ZWYSSIG , Craig MCADAM
CPC classification number: H03G3/30 , H03F3/04 , H03G2201/103
Abstract: An integrated circuit (IC), comprising: a first input pin for receiving a first input signal; a first converter configured to convert the first input signal to a first output signal; a first gain stage configured to apply a first gain to the first output signal; gain update circuitry configured to: output a first external gain control signal to a first output pin of the IC; and subsequently output a first internal gain control signal to the first gain stage to update the first gain of the first gain stage, wherein output of the first internal gain control signal is delayed relative to output of the first external gain control signal by a first predetermined delay, the first predetermined delay to compensate for signal chain delay between the first input pin and the first gain stage, wherein the gain update circuitry comprises level detection circuitry configured to determine a signal level of the first input signal or the first output signal.
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公开(公告)号：US20240142399A1
公开(公告)日：2024-05-02
申请号：US18406202
申请日：2024-01-07
Applicant: Western Digital Technologies, Inc.
Inventor： Daniel BEDAU
IPC: G01N27/22 , G01N33/487 , H03F3/04
CPC classification number: G01N27/226 , G01N27/228 , G01N33/48721 , H03F3/04 , H03F2200/294
Abstract: Disclosed herein are systems for detecting molecules. In some embodiments, a system includes a multiplexer, a read amplifier coupled to the multiplexer, a digitizer coupled to the read amplifier, a first nanopore, a first sense electrode situated on a first side of the first nanopore, a first counter electrode situated on a second side of the first nanopore, a first shield at least partially surrounding the first sense electrode and coupled to the multiplexer, a first shield driver coupled to the first shield, drive circuitry coupled to the first sense electrode, and control logic coupled to the drive circuitry, the multiplexer, and to the digitizer. In some embodiments, the control logic is configured to control the drive circuitry and/or the multiplexer to select the first sense electrode and/or the first counter electrode, and obtain a digitized signal from the digitizer, the digitized signal representing a current through the first nanopore.
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公开(公告)号：US11946956B2
公开(公告)日：2024-04-02
申请号：US17545033
申请日：2021-12-08
Applicant: DENSO CORPORATION
Inventor： Takasuke Itou , Tomohiro Nezuka , Yasuaki Aoki , Yuuta Nakamura , Takashi Yoshiya
IPC: G01R19/165 , H03F3/04 , H03K5/24
CPC classification number: G01R19/165 , H03F3/04 , H03K5/24
Abstract: A signal detection circuit detects, as a detection target signal, a signal of a main terminal of a switching element by comparing the detection target signal with a reference signal. The signal detection circuit includes: a signal generation unit generating the reference signal; a first capacitor having a first terminal connected with the main terminal of the switching element; a second capacitor having a first terminal connected with an output terminal of the signal generation unit; and a detection circuit receiving, as input signals, a signal output from a second terminal of the first capacitor and a signal output from a second terminal of the second capacitor, and the detection circuit detecting the detection target signal based on the input signals.
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公开(公告)号：US11942901B2
公开(公告)日：2024-03-26
申请号：US17860981
申请日：2022-07-08
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Joseph A Cuggino , Anthony Francis Quaglietta
CPC classification number: H03F1/30 , H03F1/32 , H03F3/04 , H03F2200/447
Abstract: A circuit comprises an amplifier network including a first amplifier and a second amplifier and a first transistor having a first base. The first transistor is thermally isolated from the second amplifier. The circuit further comprises a second transistor having a second base. The second transistor is thermally linked to the second amplifier. The circuit further comprises coupling circuitry configured to couple the first base to the second base.
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公开(公告)号：US11940496B2
公开(公告)日：2024-03-26
申请号：US17904931
申请日：2021-02-24
Applicant: Analog Devices, Inc.
IPC: G01R31/319 , G01R31/28 , H03F1/52 , H03F3/04 , H03F3/16
CPC classification number: G01R31/31924 , G01R31/2834 , H03F1/523 , H03F3/04 , H03F3/16 , H03F2200/441
Abstract: An automated testing system comprises a high side switch circuit coupled to an input/output (I/O) connection, a low side switch circuit coupled to the I/O connection, a high side force amplifier (HFA) coupled to the high side switch, a low side force amplifier (LFA) coupled to the low side switch, an adjusting circuit coupled to the HFA and the LFA, and a control circuit configured to change the adjusting circuit to change control of current at the I/O connection from one of the HFA or LFA to the other of the HFA or LFA.
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公开(公告)号：US20240097635A1
公开(公告)日：2024-03-21
申请号：US17948632
申请日：2022-09-20
Applicant: Bendix Commercial Vehicle Systems LLC
Inventor： Tandi Wijaya , Michael D. Cremona , Thomas J. Hayes , Ran Wei
IPC: H03G3/30 , B60R16/023 , H03F3/04 , H04B3/54
CPC classification number: H03G3/30 , B60R16/023 , H03F3/04 , H04B3/54 , H03G2201/103
Abstract: A system for calibrating signals received over a power line within a vehicle includes a signal conditioning circuit that converts the analog input signals into digital input signals. In one embodiment the circuit includes an adjustable gain circuit that outputs an amplifier gain signal establishing an amplifier gain level and an amplifier that outputs amplified signals responsive to the analog input signals and the amplifier gain signal. In another embodiment, the circuit includes a bias circuit that outputs a bias signal establishing a bias level and a comparator that generates the digital input signals responsive to the analog input signals and the bias signal. A controller receives the digital input signals and generates, depending on the embodiment, one or more control signals configured to control the configuration of the amplifier gain signal and amplifier gain level and/or the bias signal and the bias level.
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公开(公告)号：US11899073B2
公开(公告)日：2024-02-13
申请号：US17435027
申请日：2020-09-22
Applicant: MINTECH CO., LTD
Inventor： Hyung Bin Son , Young Jae Lee , Gyeong Rin Choi , Young Jin Hong
IPC: G01R31/389 , H03F3/04
CPC classification number: G01R31/389 , H03F3/04
Abstract: An impedance measurement device of the present disclosure includes: an electrochemical energy device; an amplifier connected to each connection terminal of the electrochemical energy device and configured to amplify a signal introduced into a wiring; and a main board configured to receive the signal from the amplifier and measure an impedance. Accordingly, the present invention has advantages in that high resistance to electromagnetic interference may be achieved by disposing a preamplifier close to a terminal of an electrochemical energy device to amplify only the signal without amplifying a noise introduced into a wiring.
