This circuit is a small +5V power supply, which is useful when experimenting with digital electronics. Small inexpensive wall transformers with variable output voltage are available from any ...

Here are 4 simple 12V power supply circuits with output voltages around 12V. First power supply circuit is built with BD139, one zener diode and a few passive components. Each of the schematic is very ...

SAN JOSE, Calif. & SAN FRANCISCO--(BUSINESS WIRE)-- Power Integrations (NASDAQ: POWI), the leader in high-voltage integrated circuits (IC)s for energy-efficient power conversion, and SnapMagic, a ...

For electricity to flow, everything needs to be connected in a big ring. It’s called a circuit. For example, the lights in most houses and flats are part of a circuit controlled by the consumer unit, ...