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Dual Channel DC H Bridge Stepper Motor Driver Controller 7-33V DIY CNC RMHB-001
Port instructions:
- PWM1: A motor PWM input port ,PWM range: 0-99% (20KHz)
- PWM2: A motor PWM input port ,PWM range: 0-99% (20KHz)
- EN-A: A motor EN port
- PWM3: B motor PWM input port ,PWM range: 0-99% (20KHz)
- PWM4: B motor PWM input port ,PWM range: 0-99% (20KHz)
- EN-B: B motor EN port
- GND: Power input negative
- 24V: Power input positive, support 7-33V
- MT1: Motor cable connection port for A motor
- MT2: Motor cable connection port for A motor
- MT3: Motor cable connection port for B motor
- MT4: Motor cable connection port for B motor
- CUR-A: Current output for A motor , analog voltage,output 1.5V when no current
- GND: Current output GND
- CUR-B: Current output for B motor , analog voltage,output 1.5V when no current
- MOSFET grid voltage must be over 10V. Step up can realize the maximum efficiency when input voltage is less than 10V
- Using power supply topology. Minimum voltage input supportsp to 7V.(5.5V/80%=6.875V, power efficiency is 80%)
- The buck chip of switching power, the practical voltage resistance is 55V. Adopt 33V TVS to keep the surge voltage less than 53.3V
- Using LDO to step down the voltage as 5V after the 5.5V switching power output.
For motor:
- With 2 channels full bridge drive, and with 2 channels current sampling
- Can drive two DC brushed motor at the same time, or a stepper motor
- When driving two brushed motor, motor A to MT1, MT2; motor B to MT3, MT4
- When drive a stepper motor, A+ to MT1, A- to MT2; B+ to MT3, B- to MT4
Hardware features:
- Maximum voltage resistence is 60V, peak current is up to 360A, maximum continuous current is 90A.
- Recommend PWM frequency 20KHz, maximum duty cycle is up to 99%
- Support 7-33V power input
- H bridge with dual direction current sampling
Withstand voltageresistance of chips:
- DC-DC switching power step-down chip: 55V
- Schottky diode: 60V
- Energy storage capacity: 50V
- Withstand voltageresistance of MOSFET : 60v
- Common mode voltage of current sampling chip: 60V
- Clamping voltage of TVS (33V)； 50V
Package list:
- 1 x DC Motor Driver
