Yh-305d Power Supply Schematic Online

Based on technical discussions and teardowns at the EEVblog Forum and Scribd , key parts include:

: A low-resistance shunt resistor is used to measure current, with adjustment trimmers (like VR10 for offset and VR11 for gain) allowing for calibration. Yh-305d Power Supply Schematic

: An L7805CV is often used to provide a stable 5V rail for the digital display and microcontroller. Based on technical discussions and teardowns at the

: To minimize heat dissipation across the pass transistors, the circuit uses relays that switch between different transformer taps at specific voltage thresholds (e.g., 8V, 16V, and 24V). Yh-305d Power Supply Schematic