An AC-DC universal controller is an electronic device that converts alternating current (AC) from the mains into direct current (DC) and manages the charging or power supply process. It regulates voltage and current to safely charge various battery types (like 12V, 24V, or 48V systems) or power DC loads.
Key Features:
Accepts wide AC input (100–240V AC)
Provides regulated DC output (adjustable voltage/current)
Supports multiple battery chemistries (lead-acid, Li-ion, etc.)
Includes protection (over-voltage, over-current, short-circuit)
Often uses smart control (PWM or MPPT) for efficient charging