2W low-cost constant voltage adapter power supply designed by LNK362P, with circuit diagram, bill of materials, transformer specification file, printed

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

1.5PF SOT23-6 Low Capacitance 5V Breakdown Voltage 6V SRV05

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

Photocoupler

Summary:

Way of working

The flyback converter using LinkSwitch-XT provides 2 W of precisely regulated constant voltage output. It also meets the requirements for load efficiency and no-load power consumption in all energy efficiency standards (CEC external power supplies).

design feature

• Constant voltage solution with low cost and low component count - 20 components
• Patented IC design and transformer winding technology enable drain node clampless design (Clampless?)
• ±5% accuracy over-temperature protection threshold - self-recovery with hysteresis - to ensure PCB board temperature is within safe limits
• Automatic restart: protection when output short circuit and loop open loop
• IC creepage distance is greater than 3.2 mm: Prevents arcing in high humidity applications
• Easily meet all external power (EPS) energy efficiency standards
• Have sufficient margin to meet CISPR-22 Class B EMI requirements

2W low cost constant voltage adapter power supply PCB physical map

2W low cost constant voltage adapter power supply circuit diagram

2W low cost constant voltage adapter power supply PCB layout

2W low cost constant voltage adapter power supply component list

See the PDF document for details (click on the PDF file to download)