公开(公告)号：US20250141416A1

公开(公告)日：2025-05-01

申请号：US18498702

申请日：2023-10-31

Applicant: Analog Devices, Inc.

Inventor： Gregory J. Manlove ,  Eric A. Sagen

IPC: H03F3/45 ,  H03F1/32 ,  H03G3/00 ,  H03M1/74

Abstract: This disclosure describes various bidirectional current sensing techniques. The solution described utilizes a matched thermal substrate, e.g., copper, in conjunction with the front two amplifiers of a three amplifier instrumentation amplifier. The bidirectional system current sensor module described utilizes the matched thermal substrate approach to cancel out temperature coefficient dependency in the sensor. Behind the lead two amplifiers, the circuits can be varied to support factory gain trim and voltage or current mode type outputs.

公开(公告)号：US20250138060A1

公开(公告)日：2025-05-01

申请号：US18498731

申请日：2023-10-31

Applicant: Analog Devices, Inc.

Inventor： Eric A. Sagen ,  Gregory J. Manlove

IPC: G01R19/25

Abstract: Described are techniques to provide a gain trim term in the numerator for a current sensor control loop. In this manner, a linear gain trim relationship is created with respect to the trim code. This linear relationship reduces the dynamic range needed for the DAC, which allows the use of lower resolution DACs to smoothly adjust the gain while maintaining stability and accuracy.

公开(公告)号：US11955930B1

公开(公告)日：2024-04-09

申请号：US18150161

申请日：2023-01-04

Applicant: Analog Devices, Inc.

Inventor： Eric A. Sagen ,  Dheemanth Prabhu Hejamady

IPC: H03B27/00 ,  H03K3/03 ,  H03L7/093 ,  H03L7/099

CPC classification number: H03B27/00 ,  H03K3/0315 ,  H03L7/093 ,  H03L7/0995

Abstract: This disclosure relates to multi-phase oscillators for electronic systems. An example system includes multiple level translator circuits and a ring oscillator circuit that includes multiple outputs. Each level translator circuit includes a first input transistor, a second input transistor, and an output. The ring oscillator circuit includes multiple outputs, and each output of the ring oscillator has a different phase. An output of the ring oscillator is coupled to only one input transistor of a level translator circuit, and the other input transistor of the level translator circuit is coupled to an output of another level translator circuit.