Power Kits

The Brownout Protector is designed to protect single-phase induction motors in fridges, freezers, pumps etc from burnout if they attempt to start during a brownout. It will switch off the power if the voltage falls below a set threshold.

(SC April '12) Are you alarmed by the juicy "splatt" from your mains power point when you plug in something like a large plasma TV set? Do you sometimes burn out light and power point switches because of

This simple and cheap device has many uses, but it’s mainly intended to replace multiple panel meters. It can also be used as a small additional text screen for PC, Raspberry Pi or any other computer with USB.

(SC Feb '12) This tiny regulator board outputs 1.2-20V from a higher voltage DC supply at currents up to 1.5A. It's small, efficient and cheap to build, with many handy features such as a very low drop-ou

If you need to switch mains voltages, say from a micro's out- put or any other low voltage source, you need to isolate them from each other. That&rsquos what this project does - it's easy to build and keeps mains voltages locked away from the controller and you! Virtually any low voltage source will do - from 2.7 to 10V.

This simple SMD Trainer project is a great way to practice soldering a variety of surface-mount devices.

(EA Aug '97) A flexible circuit that provides preset voltage output of 3, 5, 6, 9 or 12V DC. Suitable for powering a wide range of DC low power circuits, such as running a personal CD/radio from a car cigaret