DC5-12V 0A-50A Dual Channel H Bridge Driver Motor Robot Stepper Driver Controller Board Module DHB-1A

Description

Product Overview

The DHB-1A Dual Channel H-Bridge Motor Driver is a high-current, high-performance motor control module designed for demanding robotics and industrial applications. Unlike standard motor drivers that struggle with high starting currents, this robust module features ultra-low resistance MOSFETs capable of handling continuous currents up to 30A per channel with peak surge capacity of 50A, making it one of the most powerful compact H-bridge drivers available .

This advanced driver board serves as the ideal interface between your microcontroller (Arduino, STM32, Raspberry Pi, PLC) and high-power DC motors, coreless motors, electromagnetic coils, or even Peltier thermoelectric modules (TEC). It provides complete bidirectional control with reversible direction and PWM speed control, while incorporating sophisticated features like current sampling feedback for implementing precision closed-loop control systems .

Whether you are building heavy-duty robotic platforms, electric vehicle prototypes, industrial automation equipment, or high-performance competition robots, the DHB-1A delivers the power handling, switching speed, and thermal efficiency required for reliable operation under extreme loads.

Key Features

• Ultra-High Current Capacity: Delivers 0-30A continuous current per channel with 50A peak surge capacity, enabling control of high-torque motors, large actuators, and high-power inductive loads that would destroy standard drivers .

• Dual Independent H-Bridge Channels: Two fully independent H-bridges allow simultaneous control of two DC motors (with independent direction and speed) or one bipolar stepper motor with high holding torque.

• Ultra-Low On-Resistance: Features MOSFETs with internal resistance as low as 3-12mΩ per channel, resulting in minimal heat generation and exceptional power efficiency even at maximum current loads .

• High-Speed Switching Design: Engineered for rapid switching with impedance load capability up to 200kHz, making it ideal for coreless motors requiring 60-80kHz PWM frequencies and high-performance applications demanding fast response times .

• Integrated Current Sampling: Unique CT (Current Transformer) pin provides real-time analog voltage output proportional to motor current, calculated as Vout = Current(A) × 0.155. This enables precise current monitoring, overcurrent protection, and closed-loop torque/speed control via microcontroller ADC inputs .

• Wide PWM Frequency Range: Supports adjustable PWM frequencies from 500Hz to 80kHz, with optimized settings for different load types:

  • General DC motors: 16kHz

  • Coreless motors: 80kHz

  • Thermoelectric coolers (TEC): 500Hz-80kHz

• Broad Logic Compatibility: Input voltage levels accept Low: 0-0.5V and High: 2.5V-13V, making the module directly compatible with 3.3V, 5V, and 12V logic systems without level shifters .

• Comprehensive Protection Features: Includes brake function for rapid motor stopping, built-in flyback diodes, and robust PCB design capable of withstanding current overloads and voltage transients .

• Integrated Heat Sink: Comes with a dedicated heat sink to ensure reliable operation during extended high-current operation, improving long-term durability .

• Compact High-Power Design: Packs 30A per channel capability into a compact form factor (approx. 62mm × 53mm), enabling high power density for space-constrained applications .

Technical Specifications