Robust driver with multi-level output

Abstract

This disclosure provides systems, methods and apparatus for a driver circuit providing a selection of a voltage among multiple voltages at its output. In one aspect, the static power consumption of the circuit may be reduced by employing a power supply scheme that allows for a reduction in sub-threshold leakage current.

Description

[0001] priority data [0002] This patent document asserts co-pending and commonly assigned U.S. Patent Application No. 14 / 476,380, filed September 3, 2014, by Kim et al., entitled "Robust Driver with Multi-Level Output" (Attorney Docket No. 144795 / QUALP254) claiming U.S. Provisional Patent Application No. 62 / 005,373, filed May 30, 2014, by Kim et al., entitled "Robust Driver with Three-Level Output" (Attorney's Case 144795P1 / QUALP254P), both of which are hereby incorporated by reference in their entirety and for all purposes. technical field [0003] The present invention relates to electromechanical systems and devices. More specifically, the present invention relates to a leakage-reducing drive circuit that provides multiple voltage levels for electromechanical systems and devices, such as displays using interferometric modulators (IMODs). Background technique [0004] Electromechanical systems (EMS) include devices having electrical and mechanical elements, actuators...

AI Technical Summary

Problems solved by technology

However, the transistors used to implement the drive circuit may have high subthreshold leakage resulting in static power dissipation

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