Sends a signal from the secondary side back to the primary controller while maintaining isolation.
Understanding the A20112 Power Supply Schematic The (specifically the R2A20112 ) is a high-performance integrated circuit (IC) primarily used as a Power Factor Correction (PFC) controller . Schematics featuring this component are common in high-efficiency Switch Mode Power Supplies (SMPS), particularly those used in large-screen televisions like plasma and LED TVs, as well as industrial power systems.
Circuits using this IC can use smaller filters and capacitors, significantly lowering the total cost of the power unit. 2. Core Sections of an A20112 Schematic
Converts the incoming AC into a pulsing DC signal before PFC processing. DC-DC Conversion and Isolation
Below is an in-depth breakdown of the A20112's role in a power supply schematic and how it facilitates efficient energy conversion. 1. Key Features of the A20112 IC
