Timers and counter controls can be either electromechanical or solid state. They control a set of relay contacts commanded by settings dialed or keyed into their front-panel controls. In general ...

Impulse relay turns on with an electrical impulse at the control input and turns off again with another impulse.

This simple alarm timer ... circuit is connected with S1, the pulse from R4 and C2 common point will reset the counter and will start the counting. When it reaches 14 bit, the 13 pin passes in state H ...

Industrial-grade units have eight 32-bit pulse counters with timers, alarms, and non-volatile memory for metering, totalizing, and low-frequency periodic measurement functions. Outputs control ...

The onboard power source keeps the logic circuit and relay energized during the off-delay period. Available models provide up to eight selectable timing modes for up to 30 minutes. The new ProSense ...

Next to the word counter is a timer that lets you time how fast you can type a paragraph or page. In addition to the counter and timer, this keyboard also has unique keys on the function row.

The ubiquitous 1971 digital miracle—the 555 Timer ... will have the circuit load “on” for half the time. In this project, we’ll apply a variable PWM signal to control the intensity ...