Electronic Design

Circuit Ensures Smooth “Soft Start” for Isolated Converter, Limits In-Rush Current

Most dc-dc converters require a soft-start circuit to limit the in-rush current at startup. Although a smooth soft start is required for systems with power-on reset (POR), this is difficult to ...
EDN

Soft Start for Loudspeaker with DC Protection

The circuit was designed for the purpose of providing protection to the loudspeaker and also incorporating soft touch technology for powering on. TL071 – a low noise JFET input operational amplifier ...
EDN

Inrush Current Limiter (Soft Starter) for AC/DC Loads

Figure-1 shows the schematic diagram of the device. P1 is used to connect the 220V-AC input and the ON/OFF switch to the circuit. C1 is used to reduce the AC voltage. The value of the C1 also ...
Electronic Design

Circuit Ensures Smooth “Soft Start” for Isolated Converter, Limits In-Rush Current (.PDF Download)

Most dc-dc converters require a soft-start circuit to limit the in-rush current at startup. Although a smooth soft start is required for systems with power-on reset (POR), this is difficult to ...