Patent ID: 7130177
Filing Date: 2006-10-31
Classification: H01H

Abstract:
1. A drive circuit of a switch which is mechanical and driven by static electricity, the drive circuit comprising: a photoelectromotive force element array connected between a first output terminal and a second output terminal connected to the switch, the photoelectromotive force element array including a first array unit and a second array unit, which are serially connected with each other, each of the first array unit and the second array unit having one or more photoelectromotive force elements serially connected, each photoelectromotive force element receiving light to generate a photoelectromotive force; and a bypass circuit connected between the first output terminal and a connection point of the first array unit and the second array unit for bypassing the second array unit to connect the first output terminal and the second output terminal via the first array unit, the bypass circuit being connected between the first output terminal and the connection point so as to be in parallel with the second array unit, and short-circuiting the first output terminal and the connection point a predetermined period of time after the photoelectromotive force is applied from the second array unit.