- Patent Title: Dual-mode filtering actuator driver apparatus, systems and methods
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Application No.: US15809196Application Date: 2017-11-10
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Publication No.: US10418961B2Publication Date: 2019-09-17
- Inventor: Michael John Shay , Jialei Xu , Randy A. Chappel
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Michael A. Davis, Jr.; Charles A. Brill; Frank D. Cimino
- Main IPC: H03H1/02
- IPC: H03H1/02 ; H03H9/00 ; H03H11/04 ; H03H1/00

Abstract:
In an actuator driver array, each actuator driver includes a transition stage to initiate a state change of a driver output signal, a static stage to maintain the state change, and an isolation resistor to couple the driver output signal to an output node of the actuator driver during a static mode. In an array of pad capacitors, each pad capacitor has: a first terminal at a connector pad communicatively coupled to the output node; and a second terminal coupled to an RF ground rail. The isolation resistor and the pad capacitor form a low-pass filter to filter RF harmonics from a respective actuator driver to respective actuator circuitry, and to filter RF energy generated outside of the respective actuator driver to its output node. In an RF actuator array, a state of each element is controllable by a corresponding actuator driver in the actuator driver array.
Public/Granted literature
- US20180091110A1 DUAL-MODE FILTERING ACTUATOR DRIVER APPARATUS, SYSTEMS AND METHODS Public/Granted day:2018-03-29
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