High Efficiency Digital Power Supply

This design introduces the first interleaved CrM PFC + LLC power supply utilizing an inverter micro MCU by Renesas. It delivers three distinct output channels: main power, audio power, and backlight unit power. The MCU provides digital control for all operations, achieving power efficiency that significantly surpasses conventional analog TV power supplies while maintaining ultra-low power consumption. This design is ideal for modern home theater systems and other consumer electronics requiring high efficiency and precise power management.

System Benefits:

• Achieves high efficiency of over 94%.
• Reduces standby and light-load operation current.
• Supports various circuit topologies with an MCU.
• Lowers total cost by reducing the number of components.