-
公开(公告)号：US20240427364A1
公开(公告)日：2024-12-26
申请号：US18214422
申请日：2023-06-26
Applicant: Texas Instruments Incorporated
Inventor： Bumkil Lee , Lei Chen , Chienyu Huang
Abstract: An example apparatus includes: regulator circuitry having a first terminal and a second terminal; current sense circuitry having a first terminal, a second terminal, and a third terminal; the first terminal of the current sense circuitry coupled to the first terminal of the regulator circuitry, the second terminal of the current sense circuitry coupled to the second terminal of the regulator circuitry; and current limit circuitry including: a transistor having a first current terminal, a second current terminal, and a control terminal, the first current terminal coupled to the third terminal of the current sense circuitry, the control terminal coupled to the second terminal of the regulator circuitry; and current source circuitry having a terminal coupled to the second current terminal of the transistor.
-
公开(公告)号：US20240405778A1
公开(公告)日：2024-12-05
申请号：US18326245
申请日：2023-05-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Vishnu Ravinuthula , Peng Cao , Chienyu Huang
IPC: H03L7/099
Abstract: An integrated circuit (IC) includes an oscillator circuit having a control input. A control circuit has a control output coupled to the control input. The control circuit is configured to generate a control signal to the control input of the oscillator circuit to cause: the oscillator circuit to be configured as a frequency-locked loop in response to the control signal being in a first state; and the oscillator circuit to be configured as a phase-locked loop in response to the control signal being in a second state.
-
3.发明公开公开(公告)号：US20240146267A1
公开(公告)日：2024-05-02
申请号：US18187870
申请日：2023-03-22
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Chienyu Huang , Peng Cao , Kevin Scoones
IPC: H03F3/45
CPC classification number: H03F3/45475 , H03F2200/375
Abstract: The techniques and circuits, described herein, include solutions for auto-zeroing in auto-zero amplifiers in the presence of high frequency alternating current (AC) noise. In some aspects, first and second inputs of an auto-zero amplifier are coupled to a differential voltage with high AC noise. During an auto-zero phase, a first switching network decouples the inputs of a first amplifier, comprised within the auto-zero amplifier, from the differential voltage with high AC noise. In some examples, the inputs of the first amplifier may be connected to a regulated direct current (DC) voltage. The regulated DC voltage provides a more accurate auto-zero for the auto-zero amplifier, such that higher overall accuracy is achieved during an operation phase.
-
-
Search Results
3
records
(took 0.014 seconds)
