Coming from an IT background to an AM transmitter site might leave you with a world of questions. Mark Persons explains the basics.

Simple electrical circuits are super cool, but simple series and parallel circuits are just the foundation of the much, much more complex circuits used in modern electronics.

An airport runway lighting circuit is another example of a series circuit. Here, the secondary winding of an isolation transformer supplies each bulb. So when a filament burns out, the primary ...

Simple Circuit Reduces Relay Coil Power. Oct. 25, 2011. ... An RC circuit in series with the coil allows full-current turn-on for reliable relay operation, then reduces the current to save power.

This boost circuit implements current mode control and senses the LED current via resistor R14. The output voltage is boosted to just over 30V to drive 10 LEDs at a regulated current of 0.35A. Often, ...

Use of 4-to-20-mA current loops involves more than just a simple series connection between sensor, display, and power supply. The point where a sensor takes a measurement is, at times, many yards ...