关键词: 光电池, 光学胶, 半导体, 隔离电路, 驱动电压

Abstract: The semiconductor device is developing towards the direction of integration, miniaturization and localization, which makes the design more and more difficult. The optical isolation circuit is often used in the isolation circuit of solid-state relay, in which the main use can play the role of isolation and the output of the switching devices to provide driving voltage of photocell devices. The solid-state relay requires the input current of the photocell to be smaller and smaller. The output voltage of the traditional photocell is less than 5 V. In order to improve the output voltage of the photocell device and re-optimize the structure design, the photocell device is filled with optical adhesive, and the output voltage of the photocell is over 6 V after repeated design, meet the requirements of switching devices.

Key words: photocell, optical adhesive, semiconductor, isolation circuits, driving voltage