Reference design enables a secondary side MCU to control primary power: Page 3 of 3

January 06, 2021 //By Jean-Pierre Joosting
Reference design enables a secondary side MCU to control primary power
AC-DC controller plus Inde-Flux™ transformer technology simplifies design, reducing size and cost with up to 60% savings of the bias supply area.

“The combination of our Inde-Flux technology in a Würth Elektronik eiSos transformer, our MCP1012 AC-DC controller and our SAM D20 series 32-bit MCU creates a unique solution to offline power management,” said Rich Simoncic, senior vice president of Microchip’s analog, power and interface business unit. “These devices enable a simpler, more reliable implementation of complex bi-directional communication between the primary and secondary elements used in many isolated applications utilizing offline power. Where this solution is used in systems with a secondary MCU, customers can realize up to 60% savings of the bias supply area and reduce the bias supply bill of materials costs by $3 or more.”

The 15-W MCP1012 offline reference design includes a user guide and comes with schematics and bill of materials, design files, firmware, and a demonstration unit. Microchip also offers a fundamental 1-W evaluation board, the DT100118, for the MCP1012 AC-DC controller.

www.microchip.com


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