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Phase Modulation (PM)
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Wednesday, June 02, 2021 01:44 PM
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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]
