In the design and production of power adapters, optocouplers, as a core electronic component, play a crucial role in signal transmission and isolation. Next, we will introduce several basic optocoupler models from Everlight, which are particularly suitable for the design and production of power adapters.

Direct Current Series Optocouplers

Model 817 Optocoupler

Features: Stable, reliable, with a high Current Transfer Ratio (CTR) and rapid response speed.

The application is commonly used in the signal feedback circuit of power adapters, achieving isolation and signal transmission between circuits, thereby enhancing the stability and safety of power adapters.

Model 357 and 3H7 Optocouplers

Features: Utilizes a photovoltaic transistor as the receiving tube, with a narrow CTR range, suitable for operation in the amplification state.

The application accurately transmits power status information within the signal feedback circuit of power adapters, ensuring their normal operation.

Series Optocouplers

Model 814 Optocoupler

Features: High sensitivity, rapid response, suitable for switch state operation, with minimal requirements for CTR.

Application: Satisfies signal transmission requirements for power adapters under various operating conditions.

Model 354 and 3H4 Optocouplers

Features: High sensitivity and rapid response capabilities.

Application: Achieve accurate signal transmission and isolation in power adapters.

Please note that when selecting the optocoupler model, it is essential to choose and adjust based on the specific circuit conditions and working environment.