Bi-directional actuator utilizing both attractive and...

Details Bi-directional actuator utilizing both attractive and... Bi-directional actuator utilizing both attractive and...

H - Electricity

02

N

H02N 1/00 (2006.01) B81B 7/02 (2006.01)

Patent

CA 2485153

An electrostatic actuator comprising: first and second comb arrays of electrodes arranged on a base, the electrodes of the first and second comb arrays being interleaved; a third comb array of electrodes spring mounted over the first and second comb arrays, the electrodes of the third comb array being essentially aligned with the electrodes of the second comb array; means for applying a first voltage to the third comb array and a second voltage to the first and second comb arrays to generate an attractive force acting on the third comb array to move the third comb array toward the second comb array; and, means for applying the first voltage to the second and third comb arrays and the second voltage to the first comb array to generate a repulsive force acting on the third comb array to move the third comb array away from the second comb array.

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