Driving method and apparatus for a pnpn semiconductor device

Details Driving method and apparatus for a pnpn semiconductor device Driving method and apparatus for a pnpn semiconductor device

1991-04-29

1992-10-06

Coles, Sr., Edward L.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

372 43, 250213A, H04J 1402

Patent

active

051537583

ABSTRACT:
A driving method for a pnpn semiconductor device includes the steps of applying a voltage higher than a holding voltage of the pnpn semiconductor device to an anode electrode thereof, supplying a control signal light to the pnpn semiconductor device to set the pnpn semiconductor device into an ON state, and supplying an information signal light to the pnpn semiconductor device to emit an output light. The control signal light and the information signal light are time-sequentially supplied to the pnpn semiconductor device under the voltage applied thereto. An apparatus for carrying out the driving method includes a light information transmission input line that is branched into a plurality of lines, where a light detection circuit is coupled to at least one of the lines. A synchronous driving circuit applies voltage to the pnpn semiconductor device which is coupled to one of the other lines of the information transmission input line. The pnpn semiconductor device is driven by receiving light from the input line when the light detection circuit detects an address of the pnpn semiconductor device included in a light supplied from the light information transmission input line.

REFERENCES:
patent: 4864168 (1989-09-01), Kasahara et al.
patent: 4952028 (1990-08-01), Tashiro
patent: 5059788 (1991-10-01), Tashiro et al.
patent: 5065044 (1991-11-01), Kasahara et al.

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