If you got your start in electronics sometime after 1980 your first project might well have been to light up an LED. Microcontroller projects often light up an LED, too, and a blinking LED is ...

The thyristor or silicon-controlled rectifier (SCR) provides a convenient latching mechanism for switching power to a load. However, once the thyristor is triggered into conduction, it supplies no ...

The current sink project aims to provide test for power supplies as well as obtaining the amount of current of an LED. The circuit automatically adjusts its effective resistance to maintain a constant ...

Last time we looked at Spice models of a current sink. We didn’t look at some of the problems involved with a simple sink, and for many practical applications, they are perfectly adequate. However, ...

For high-speed clock and data systems, positive emitter-coupled-logic (PECL) – a differential signaling scheme – is emerging as a preferred alternative to single-ended CMOS and TTL logic. High-speed ...