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Motor Pump PCBA – Intelligent Controller with Dry‑Run Protection, Overload Cutoff & Flow Regulation for Water Pumps, Booster Systems & Irrigation
No.YQQX040
- Precise Motor Control – Drives DC brushless (BLDC) or brushed DC motors (12V, 24V, 48V). Supports PWM speed regulation (0‑100%), soft start/stop to prevent water hammer, and reversible direction (for filling/draining applications).
- Dry‑Run Protection – Integrated low‑water sensor (float switch, conductivity probe, or pressure switch) shuts down pump when water level drops below minimum safe level. Auto‑resume when water refilled – prevents seal and impeller damage.
- Overload & Overcurrent Protection – Real‑time current sensing (via shunt or Hall sensor). Cuts output if current exceeds 110‑120% of rated value for >3 seconds. Thermal shutdown on MOSFET (temp >85°C). Auto‑retry after fault clears.
- Flow & Pressure Regulation – Optional PID control loop maintains constant flow rate (using flow sensor) or constant pressure (using pressure transducer). Ideal for variable demand systems (e.g., multiple outlets opening/closing).
- User Interface & Indicators – LED status: power on (green), pump running (blue), dry‑run / fault (red flashing), overload (red solid). Optional remote control input (dry contact) for tank level switches or automation systems (PLC, home automation).
- Applications – Suitable for: garden water pumps, booster pump systems, rainwater harvesting, HVAC circulation pumps, solar fountain pumps, RV water systems, and industrial dosing pumps. Works with clean water, rainwater, and mild chemical solutions.
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Product Overview
The Motor Pump PCBA is a compact, intelligent controller for various pump types – submersible pumps, booster pumps, circulation pumps, and dosing pumps. It replaces traditional mechanical pressure switches and relays with solid‑state motor control, offering dry‑run protection, overload cutoff, adjustable flow/pressure, and diagnostic LEDs. The PCB accepts 12‑48V DC or 110‑240V AC (onboard power supply) and controls pumps up to 1HP (or 750W).
By automating pump operation based on water level, flow demand, or pressure thresholds, this PCBA reduces energy waste, prevents pump burnout, and extends system life. Ideal for residential, agricultural, and light industrial water management where reliable, unattended operation is required.
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