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Phase Modulation (PM) Circuits
Last Updated on: Saturday, August 30, 2014 10:28 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

ST6: UNIVERSAL Motor Control EVALUATION BOARD -  The UMC01EVAL Evaluation Board is designed for a very low-cost phase control system based on the 8-bit ST62T00C microcontroller. It can be used to control a universal motor powered by a 230 V / 50 Hz mains supply. (app note added 3/05)
Toy PM Motor Drive Circuits -  This is an actual reverse engineered circuit diagram of the one transistor circuit most commonly used to drive Permanent Magnet DC motors in childrens' toys. This type of circuit almost always uses the 625mW version of the ubiquitous 8050 or 8550 transistor. It is vital to note that there are two different varieties of each of these two transistors [Reverse engineered schematic by Stepan Novotill]

 

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