Wlx-896b - Schematic Link

A common mode suppression choke and a Class X capacitor filter out electrical noise before it reaches the rest of the circuit.

A bridge rectifier converts AC to DC, which is then smoothed by a large electrolytic "bulk" capacitor. Wlx-896b Schematic

Often caused by a shorted bridge rectifier or switching transistor on the primary side. A common mode suppression choke and a Class

A switch-mode chip or transistor (often mounted to a small heatsink) drives the primary winding of the transformer at high frequencies. 2. The Transformer and Isolation A switch-mode chip or transistor (often mounted to

Large Schottky diodes or synchronous rectifier MOSFETs (on heatsinks) convert the transformer's AC output to DC.

This section rectifies the transformer output into the 5V (or higher for QC) DC needed for USB charging.

The is the central component that steps down the voltage while providing galvanic isolation between the mains and your devices. 3. The Secondary (Low Voltage) Section