| abstract |
A bilateral, switching integrated circuit is described in U.S. Pat. No. 3,918,083. The present application discloses variations of the basic structure and devices incorporating both the basic structure and the variants. Included are a photosensitive, zero-crossing optoisolator, relay structures, a switch of greatly increased light sensitivity employing photodarlingtons, and a dielectrically isolated switch that can be triggered by light or gated injection currents. |