Wx-dc12003 Schematic [extra Quality] Jun 2026

| Silk Screen Label | Connection Point | | :--- | :--- | | | 90V secondary from transformer | | V_OUT+ | Positive output binding post | | V_OUT- | Negative output binding post (floating) | | POT_V | Wiper of voltage pot | | POT_I | Wiper of current pot | | M_V+ | To front panel voltmeter (high impedance) | | M_A+ | To front panel ammeter |

reveals a standard Primary-Side Regulation (PSR) flyback topology. wx-dc12003 schematic

Vref = 1.25V, R1=3.3k, R2=1k → Vout = 1.25*(1+3.3/1) = 1.25*4.3 = 5.375V (within 5% tolerance). | Silk Screen Label | Connection Point |

Always use an external fuse and never leave these modules powered in a device that is not properly enclosed in a fire-retardant case. Conclusion wx-dc12003 schematic