| Ref Des | Value/Part | Function | |---------|------------|-----------| | F1 | 3.15A/250V | Fuse | | DB1 | KBP206 | Bridge Rectifier | | C4 | 100µF/400V | Bulk Capacitor | | IC1 | OB2269 | PWM Controller | | Q1 | 7N60 | MOSFET | | R8 | 0.33Ω/2W | Current Sense | | PC1 | PC817 | Optocoupler | | U2 | TL431 | Voltage Reference | | D5 | SB5100 | Output Diode (12V) |
The high-voltage side begins at the standard AC input terminals (labeled and N for Line and Neutral).
The heart of the module is an offline Primary-Side Sensor Controller chip, often designated as the (or a comparable alternative like the TOP254YN in some board variations). wx-dc12003 schematic
Although efficient, ensure the module has adequate airflow if running at its maximum 700mA load for extended periods.
: Websites like Digi-Key, Mouser, or Newark often have product datasheets and sometimes reference designs or schematics for the components they sell. | Ref Des | Value/Part | Function |
The WX-DC12003 schematic integrates multiple layered protection routines driven natively by its central management chip: All About Circuitshttps://forum.allaboutcircuits.com Markings on the WX-DC12003 Switching Power Supply
A set of four 1N4007 rectifier diodes (or a unified bridge chip package) converts the incoming sinusoidal AC waveform into rectified, pulsing DC. : Websites like Digi-Key, Mouser, or Newark often
3kV isolation between input and output for safety.
Understanding the provides crucial insights into how this module manages thermal performance, maintains galvanic isolation, and ensures robust circuit protection in small-scale embedded applications. Technical Specifications Overview