The ProtoPowerSwitch enables product developers to quickly and easily prototype circuits that use household AC voltages to power a microcontroller, and then use that microcontroller to operates relays, TRIACs, or SCRs to control the flow of AC power to loads. This type of circuit is designed for low production cost and is found in everyday consumer products.

The ProtoPowerSwitch is designed to meet IPC high voltage spacing requirements up to 300V for traces that interface to the AC mains.

The ProtoPowerSwitch plugs directly into Texas Instrument's family of LaunchPad products (MSP430, C2000, and Tiva/Stellaris). The circuit may also be used in a general purpose manner for any one of it's capabilities, such as a standalone transformerless AC power supply, or phase-angle controlled TRIAC, or just an AC-zero volt detection circuit.

More information and documentation about the ProtoPowerSwitch board will be available soon; check back here for updates.

Transformerless Power Supply Design Center

User Guide for the ProtoPowerSwitch BoosterPack

Bare Board

TRIAC ProtoPowerSwitch

Relay ProtoPowerSwitch

TRIAC ProtoPowerSwitch with Texas Instruments' Captouch BoosterPack