15W set-top box switching power supply circuit schematic

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description:

The picture shows the 15W set-top box switching power supply circuit. The multi-output switching power supply has excellent cross regulation and two output weighted regulation. Meets CEC Energy Star 2008 requirements for operating mode efficiency (required 68.1%, up to 77%), low no-load power consumption (less than 150mW at 230V AC input), compliant with ClSPR-22/EN55022B for EMI Restricted requirements with automatic restart and unrestricted short-circuit output protection.