Our mini fan control PCBA is customized for USB & rechargeable desktop fans, handheld portable fans and foldable fans. It integrates charging management, motor drive, multi-speed regulation, auto-off timer, ambient LED lighting and low-power control circuits. With proven stable circuitry, the board matches household, office and promotional gift fans, supporting custom R&D and mass SMT assembly.
- Solution Overview
Designed for USB-powered or lithium rechargeable desktop, handheld and foldable mini fans, this PCBA incorporates charging management, motor driving, multi-speed control, timing shutdown, decorative ambient light and low-power MCU control. Reliable circuit design fits finished fan assembly for home, office and gift applications with customizable development and bulk PCBA production available.
- Core Functions
Power & Charging Management Compatible with 5V USB input and built-in 3.7V lithium battery; equipped with Type-C charging port plus full protections against overcharge, overdischarge, overcurrent and short circuit, accompanied by charging indicator LED.
Motor Drive & Speed Control Drives brushed or brushless DC motors with 1~3 adjustable wind speeds and one-key power switch, delivering smooth low-noise operation and gentle airflow.
Optional Intelligent Functions Configurable add-ons including timing power-off, swing head control, night ambient light, natural wind simulation, touch keys and soft-start startup.
Low-Power Optimization Ultra-low standby current with auto-sleep function to extend battery runtime; low-battery alert prevents deep discharge damage to cells.
Multi-Layer Safety Protection Locked-rotor protection, short-circuit and reverse polarity protection compliant with standard safety specifications for small home appliances.
III. Core Advantages
High circuit integration with fewer components for cost control and ultra-thin compact fan housing layout;
Stable motor drive ensures low noise and long service life to fit various desktop & handheld fan structures;
Flexible customization on speed gears, lighting effects, key definition and preset timer duration;
One-stop service covering hardware design, firmware programming, SMT processing, function debugging and mass production.
- Application Range
Desktop mini fans, USB office fans, handheld portable fans, collapsible travel fans, dormitory-use fans and promotional gift small fans.
- Supporting Services
Circuit schematic design, firmware development, SMT assembly, firmware flashing, function testing and after-sale technical support.
