Two PFC (power factor correction) boost controllers, the L4985A / L4985B and L4986A / L4986B, integrate 800V start up circuitry to simplify design and enhance flexibility, said ST Microelectronics. The built-in high-voltage start up capability saves auxiliary circuitry, allowing a ’no aux’ design that reduces bill of materials costs and is ensures reliable starting. These circuits also […]
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