Wi-Fi Wireless Bipolar Stepper Motor Driver
Introduction
This Wi-Fi Stepper Motor Driver enables remote control of a bipolar stepper motor over a wireless network. The project is based on the ESP32 Wi-Fi microcontroller and the BD63731EFV stepper motor driver IC, providing a compact and reliable solution for motion control applications.
The driver operates from a 24 VDC power supply and is capable of driving bipolar stepper motors with output currents of up to 3A. The BD63731EFV supports multiple micro-stepping modes, allowing smooth and precise motor operation while reducing vibration and audible noise.
Features
- Motor Supply 24V DC
- Rated Output Current 3.0 A
- Low ON Resistance DMOS Output
- CLK-IN Drive Mode
- PWM Constant Current (other oscillation)
- Built-in Spike Noise Cancel Function (external noise filter is unnecessary)
- FULL STEP (2 types), HALF STEP (2 types),
- QUARTER STEP (2 types), 1/8 STEP, 1/16 STEP Functionality
- Freely Timing Excitation Mode Switch
- Current Decay Mode Switch (linearly variable SLOW/FAST DECAY ratio)
- Normal Rotation & Reverse Rotation Switching Function
- Power Save Function (PS Jumper J4)
- Built-in Logic Input Pull-down Resistor
- Power-on Reset Function
- Thermal Shutdown Circuit (TSD)
- Over-current Protection Circuit (OCP)
- Under Voltage Lock Out Circuit (UVLO)
- Over Voltage Lock Out Circuit (OVLO)
- Protects Against Malfunction when Power Supply is Disconnected (Ghost Supply Prevention Function)
- Adjacent Pins Short Protection
- Microminiature, Ultra-thin and High Heat-radiation (exposed metal type) Package
- 4 x 3 mm PCB Mounting Holes
- PCB Dimensions 60.96 x 45.09 mm
Power Supply
This module is designed to operate from a 24 VDC power supply. The onboard isolated DC-DC converter (U6) converts the 24 V input into an isolated 3.3 VDC supply for the ESP32 microcontroller and associated logic circuitry.
As an alternative power option, the PCB also provides footprints for an LM317 voltage regulator (U7) along with output-setting resistors R12 and R13. If the LM317 regulator is installed, do not populate the DC-DC converter (U6). Only one of these power supply options should be used at a time.
Bipolar Stepper Motor Driver
The bipolar stepper motor driver is based on the BD63731EFV high-performance stepper motor driver IC, a low-power PWM current-controlled driver designed for efficient and precise motor control. The module operates from a 24 VDC power supply and is capable of delivering up to 3.0 A output current, making it suitable for a wide range of bipolar stepper motors.
The driver uses a CLK-IN interface, requiring only STEP (CLK) and DIRECTION (DIR) input signals for motor control. It supports multiple excitation (micro-stepping) modes, including:
- Full-Step (2 modes)
- Half-Step (2 modes)
- Quarter-Step (2 modes)
- 1/8-Step
- 1/16-Step
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Introduction
This Wi-Fi Stepper Motor Driver enables remote control of a bipolar stepper motor over a wireless network. The project is based on the ESP32 Wi-Fi microcontroller and the BD63731EFV stepper motor driver IC, providing a compact and reliable solution for motion control applications.
The driver operates from a 24 VDC power supply and is capable of driving bipolar stepper motors with output currents of up to 3A. The BD63731EFV supports multiple micro-stepping modes, allowing smooth and precise motor operation while reducing vibration and audible noise.
Features
- Motor Supply 24V DC
- Rated Output Current 3.0 A
- Low ON Resistance DMOS Output
- CLK-IN Drive Mode
- PWM Constant Current (other oscillation)
- Built-in Spike Noise Cancel Function (external noise filter is unnecessary)
- FULL STEP (2 types), HALF STEP (2 types),
- QUARTER STEP (2 types), 1/8 STEP, 1/16 STEP Functionality
- Freely Timing Excitation Mode Switch
- Current Decay Mode Switch (linearly variable SLOW/FAST DECAY ratio)
- Normal Rotation & Reverse Rotation Switching Function
- Power Save Function (PS Jumper J4)
- Built-in Logic Input Pull-down Resistor
- Power-on Reset Function
- Thermal Shutdown Circuit (TSD)
- Over-current Protection Circuit (OCP)
- Under Voltage Lock Out Circuit (UVLO)
- Over Voltage Lock Out Circuit (OVLO)
- Protects Against Malfunction when Power Supply is Disconnected (Ghost Supply Prevention Function)
- Adjacent Pins Short Protection
- Microminiature, Ultra-thin and High Heat-radiation (exposed metal type) Package
- 4 x 3 mm PCB Mounting Holes
- PCB Dimensions 60.96 x 45.09 mm
Power Supply
This module is designed to operate from a 24 VDC power supply. The onboard isolated DC-DC converter (U6) converts the 24 V input into an isolated 3.3 VDC supply for the ESP32 microcontroller and associated logic circuitry.
As an alternative power option, the PCB also provides footprints for an LM317 voltage regulator (U7) along with output-setting resistors R12 and R13. If the LM317 regulator is installed, do not populate the DC-DC converter (U6). Only one of these power supply options should be used at a time.
Bipolar Stepper Motor Driver
The bipolar stepper motor driver is based on the BD63731EFV high-performance stepper motor driver IC, a low-power PWM current-controlled driver designed for efficient and precise motor control. The module operates from a 24 VDC power supply and is capable of delivering up to 3.0 A output current, making it suitable for a wide range of bipolar stepper motors.
The driver uses a CLK-IN interface, requiring only STEP (CLK) and DIRECTION (DIR) input signals for motor control. It supports multiple excitation (micro-stepping) modes, including:
- Full-Step (2 modes)
- Half-Step (2 modes)
- Quarter-Step (2 modes)
- 1/8-Step
- 1/16-Step
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