Light activated semiconductor switch device

Details Light activated semiconductor switch device Light activated semiconductor switch device

H - Electricity

03

K

345/24

H03K 17/72 (2006.01) H01L 33/00 (2006.01) H03K 17/16 (2006.01) H03K 17/79 (2006.01)

Patent

CA 1040734

LIGHT ACTIVATED SEMICONDUCTOR SWITCH DEVICE ABSTRACT OF THE DISCLOSURE A light activated semiconductor switch device comprising a light activated PNPN switch, an impedance element, a switching element, and a capacitance element. The impedance element and switching element are connected in parallel across the cathode gate and the cathode or across the anode and the anode gate of the light activated PNPN switch, and the switching element is turned on by the current supplied through the capacitance element, so that the device can operate with im- proved tolerance to dv/dt and high turn-on sensitivity.

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