Type-C 3-Speed Rechargeable Mini Fan Control Board with JST Cable
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৳ 100.00৳ 150.00 (-33%)
This Type-C 3-speed mini fan control board is a high-efficiency replacement motherboard and DIY module designed for portable, rechargeable handheld or desktop fans. Powering from a standard 3.7V Lithium-Ion battery (via the B+/B- terminals), the onboard inductive boost converter elevates the voltage across three distinct output gears (5V, 7V, and 9V) to control fan speeds.
The Type-C 3-Speed Rechargeable Mini Fan Control Board (Model: ZR-F36-V2) is a compact, high-efficiency power management and driver module designed for fixing, upgrading, or building portable handheld and desktop cooling fans. This all-in-one motherboard integrates a lithium battery charging circuit, a step-up (boost) voltage regulator, and a multi-gear speed controller onto a single space-saving printed circuit board.
Advanced Inductive Power Regulation
Unlike cheap linear regulators that lose energy through heat dissipation, this board features a heavy-duty power inductor (labeled 4R7) and high-quality SS34 Schottky diodes. When powered by a single 3.7V Lithium-Ion or Lithium-Polymer battery (such as a standard 18650 cell), this inductive boost circuit steps up the voltage dynamically. By changing the voltage output across three distinct levels—typically 5V (Low), 7V (Medium), and 9V (High)—it controls the rotational speed of your fan motor with maximum efficiency, ensuring your portable device runs longer on a single charge.
Comprehensive Integrated Design
- Modern USB Type-C Charging Interface: Includes an onboard Type-C port that allows the internal lithium battery to be safely recharged using any standard smartphone charger, power bank, or laptop USB port.
- One-Button Cycle Control: Outfitted with a single, durable tactile micro-switch. A sequential press cycles the system flawlessly through: Power On (Speed 1) → Speed 2 → Speed 3 → Power Off.
- Plug-and-Play Connectors: Designed with dual JST-style horizontal sockets on the upper deck for solderless connections. It comes packaged with a pre-stripped, 2-pin JST terminal cable for immediate wiring to your power source or motor unit.
- Clear Solder Pads: For custom housing configurations, the board includes clearly marked hardware solder points: B+ / B- for the battery inputs and F+ / F- (风扇 / Fan) for the motor connections.
Ideal Applications
- Gadget Repair & Restoration: Salvaging or repairing broken high-end handheld travel fans, neck-hanging fans, or personal desk fans with damaged USB ports or burnt-out circuits.
- DIY Prototyping: Designing custom desktop cooling units, small automated ventilation setups for electronics enclosures, or 3D-printed novelty cooling wearables.
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