Clean 2D electrical engineering vector diagram and schematic layout of a low-power single-live-wire (no-neutral) AC-DC flyback power supply. Visible blocks including AC Line input in series with an active parasitic bleed circuit and safety bypass capacitor across the load, bridge rectifier, input filter, primary switching controller IC, small EE10 flyback transformer with isolation barrier, secondary Schottky diode and low-ESR output capacitor feeding a 3.3V LDO, optocoupler feedback loop, and a zero-crossing snubber stage. Minimalist white background, crisp high-contrast black and blue schematic lines, professional electronic CAD aesthetic, clean technical blueprint, high resolution, 8k.