Non-insulated power supplies are often required when a power semiconductor, which has to be controlled using this supply, has its drive reference connected to the mains (line or neutral terminal).

Two new triac-output optocouplers developed by Toshiba Electronics Europe provide reinforced insulation and low LED trigger currents up to 3 mA. Two new triac-output optocouplers developed by Toshiba ...

Photocouplers (or optocouplers) are a broad category of device used to isolate two circuits with different ground potential. Typically used for isolation between an input signal and a processor or ...

To understand the technology associated with practical LED dimming we first have to look at the technology associated with triac-based incandescent lamp dimmers. The typical triac lamp dimmer circuit ...