Editor's Note: Here's another take on the transformerless AC line power supply, which finds use in some well-insulated, low-power devices. Our technical reviewer pointed out that C ac should be an ...

LEDs find wide use in emergency lighting because of their high efficiency and control simplicity. The circuit in Figure 1 provides a highly efficient and reliable design for emergency LED lighting at ...

Fairchild introduced the new FL77944, the first solution in its LED Direct AC Drive family of solid-state LED lighting solutions that manufacturers can use to easily scale power and create smart and ...