VOLTAGE BIASED PULL ANALOG INTERFEROMETRIC MODULATOR WITH CHARGE INJECTION CONTROL

摘要

This disclosure provides systems, methods and apparatus for driving three- terminal electromechanical systems (EMS) devices. The driving systems and methods described herein include a switched capacitor charge injection circuit (1530) that is configured to isolate a single EMS device and transfer a desired amount of charge to the isolated device such that the device can be actuated to produce a desired optical, electrical or mechanical effect. The charge injection circuit includes an operational amplifier (1315) and is connected such that the EMS device is placed in the feedback path of the operational amplifier (1315).