The is a compact, isolated switched-mode power supply (SMPS) module designed to convert high-voltage AC (or DC) into a regulated low-voltage DC output, typically 5V at 700mA . Its schematic is based on a flyback topology , utilizing an integrated Pulse Width Modulation (PWM) controller and a high-frequency transformer to achieve electrical isolation. Core Schematic Features
| Op-Amp Section | Function | Key Components | | :--- | :--- | :--- | | | Voltage Error Amp | Compares V_SET (from pot) vs V_OUT. Drives pass transistors. | | U1B | Current Error Amp | Compares I_SET vs voltage drop across 0.1Ω shunt. Pulls down voltage ref if over current. | | U1C | Current Sense Amp | Amplifies shunt voltage (gain ≈ 11) for front panel meter. | | U1D | Voltage Follower | Buffers V_OUT for front panel meter. | wx-dc12003 schematic
The WX-DC12003 schematic is a crucial document for electronics enthusiasts, engineers, and technicians working with the WX-DC12003 DC power supply. This article aims to provide a detailed overview of the WX-DC12003 schematic, its components, and its applications. The is a compact, isolated switched-mode power supply
: Multiple WX-DC12003 modules of the same voltage can be connected in parallel to increase total output current in tight spaces. Drives pass transistors