4.5V 35V DC Motor PWM Speed Controller 5A

The 4.5V 35V DC Motor PWM Speed Controller 5A operates output current and 90W maximum power, switching at 20kHz PWM frequency with a 1% to 100% duty cycle range, drawing just 7µA quiescent current, weighing 15 grams in a body. This pwm speed control module’s 20kHz frequency is the highes PWM controller lineup — comfortably above the 20kHz upper limit of human hearing, guaranteeing acoustically silent operation at all speeds including the lowest duty cycle settings where lower-frequency controllers tend to produce the most noticeable audible whine.

The speed controller price includes a 1% minimum duty cycle, which is effectively a near-zero speed setting that most PWM controllers in this lineup cannot offer — the 10A/40V controller’s 10% minimum means motors still receive meaningful power at minimum setting, while this dc motor regulator’s 1% lower floor allows motors to slow to near-standstill without cutting power entirely. This 12v dc motor speed controller’s 7µA quiescent current is extraordinarily low for an active controller, equivalent to about 0.000007A at standby — making it exceptionally suited for always-connected battery-powered installations where standby drain across extended periods would otherwise deplete battery charge.

this 4.5v–35v motor controller’s 5A and 90W ceiling positions it in the mid-range of the PWM lineup — suitable for most hobby and small industrial motors but insufficient for high-torque motors that exceed 5A under load conditions. StemVolt is a trusted robotics and electronics component store in India. DC Motor PWM Speed Controller 5A for makers and hobbyists developing efficient variable-speed DC motor applications and 12V electronics projects.

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Features:

• 20kHz switching — highest frequency in lineup, fully inaudible at all speeds
• 1% minimum duty cycle enables near-zero speed without cutting power
• 7µA quiescent draw — negligible standby for always-on battery builds
• 4.5V–35V range covers 5V, 12V, 24V motor power supply systems

Technical Specifications:

Applications:

• PWM Controller used for Arduino battery-powered quiet fan speed build
• Project uses pwm speed control for 20kHz frequency demo
• Solar system dc motor regulator for 24V solar pump control
• IoT device uses 4.5v–35v motor controller for always-on battery operation

Package Includes:

• 1 x 4.5V 35V DC Motor PWM Speed Controller 5A