Eventually we’ll move on to learning about active components like transistors, but there’s a fourth passive circuit component that’s almost never encountered.

By adding a few passive components, you can make circuits such as level converters, frequency multipliers, phase detectors, line drivers, and pulse changers. Take the simplest form of a passive ...

This light dimmer control has active timing capacitor reset or AC line zero-crossing synchronization. The 13 additional components are garden variety and cost less than $2. Performance at the low end ...