Voltage and current schematics

Build a robust voltage detection circuit to safeguard your projects from power surges. This innovative design accurately monitors changes from 120V to 240Vac, utilizing LEDs and a latching circuit for immediate alerts and reliable protection – empowering you to confidently tackle demanding electrical applications.... [read more]

Build innovative circuits controlling multiple appliances with this ingenious trailing socket design. Harness the power of 1000W to seamlessly manage your electronics, from amplifiers to lamps, unlocking unparalleled control and convenience.... [read more]

Build a powerful AC current detector using a simple U-bolt pickup to sense currents from 30 watts up to 1458 watts, boosting your electrical sensing capabilities and unlocking new design possibilities.... [read more]

Build a captivating LED circuit with a 10k potentiometer to precisely control the LED's brightness. This innovative design, utilizing a UA741 op-amp and a 1.2k resistor, empowers you to create stunning visual effects. Fine-tune the LED's glow by adjusting the variable resistor, unlocking limitless possibilities for your electronic projects.... [read more]

Build a simple yet powerful mains voltage detector with just 6 parts. This innovative circuit, utilizing a 4017 decade counter, detects the presence of live conductors up to 15cm away, flashing an LED five times per second when in proximity. Unlock the potential of mains voltage detection today.... [read more]