Lo scenario
Designing a time-delayed relay for industrial machinery startup, where a delay is needed before energizing a load after power-on.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
Choosing RC time constant for desired delay
02
Selecting transistor to handle relay coil current
When you need a simple hardwired timer delay to switch a load after a set interval, without microcontrollers or programmable timers.