Last week Belgian fabless chip company Melexis announced a unique inductive sensing IC that includes a tiny transformer, drive circuit and sense circuit, so Electronics Weekly decided to have a closer look. No permanent magnet, external or internal, is needed, and external magnetic fields are rejected. MLX92442 only requires a nearby electrically conductive object for triggering. It comes in either ...
Baumer has created an inductive position sensor that is only 6mm think but detects objects a up to 12mm. IF250 sensors have a plastic body with a 25 x 52.4mm footprint, reinforced with metal sleeves at the two mounting holes. Four proximity switch versions are available to give all output combinations of: normally-open or normally-closed, and ‘pnp’ or ‘npn’. Then ...
ABB is focussing on companies exporting heavy equipment to the US with a series of long-life motors built to meet NEMA requirements. Constructed with NEMA 5800 (368.5mm, 14.5inch shaft height) frames, the induction motors can deliver up to 1,750 horse power. They have “high-strength welded steel frame construction usually reserved for larger motors reduces stress and vibration to ensure a ...
Swiss packaging company Model Group bought in ABB to re-fit a huge paper-making machine at its Weinfelden plant with new motors. The machine, almost 80m long, has dozens of motors and operates 24 hours a day seven days a week as one of a pair that make enough paper for ~1,500 million square meters of corrugated board each year. The machine was nearing ...
GaN power transistors are giving new life to old ferrites as PSU designers seek magnetic components that can keep up with multi-MHz switching, according to Ferroxcube. “We are providing a lot of samples of 3F46 and 3F36 around the world,” the company’s product manager Artur Pawlak told Electronics Weekly at PCIM in Nuremberg. A decade ago the firm created a ...
A friend has asked me to recommend a book on electric motors. The best book on motors I ever read was by Brook Electric Motors, but it does not cover modern electronic controls. So I seek something as good , but a bit more modern. I don’t think anything with vector diagrams is needed, but something with a description of basic ...
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