Patent ID: 6788981
Filing Date: 2004-09-07
Classification: G02B

Abstract:
A control system in an electrostatic actuator array, comprising:a first plurality of electromechanical elements formed in a substrate and having respective movable mechanical elements forming part of respective actuator capacitors; a first plurality of hold capacitors coupled to said respective ones of said actuator capacitors: a first plurality of selectable inverters coupling respective hold capacitors to respective actuator capacitors; a common source of a selectably variable analog drive power signal, wherein said common source of said selectably variable analog drive power signal comprises a digital to analog converter producing a signal selectively controlling a magnitude of said common source of said selectably variable analog drive power signal; a first plurality of driver circuits all receiving said drive power signal and including a switching path connected to respective ones of said hold capacitors controlled according to address signals supplied to said driver circuits; and at least one address decoder providing distinctive address signals to said driver circuits.