MRMotor
Efficient and Low Cost Motor Controller Solution!
MR Motor is a Mosfet/Relay based motor controller for 2 Permanent Magnet DC Motors. It takes direction and PWM input signals from the computer and drives the motors with a high efficiency Fet to reduce heat buildup on the board.
MR Motor is designed for operating simple motor applications where the motor is usually set in one direction using a relay for direction control instead of a more complex and expensive H-Bridge using Fets.
MR Motor uses high efficiency Fets with low on-resistance to control the motor speed with PWM inputs from 0 to 100%. PWM frequencies can be from DC to 3KHz. This is limited by the opto-isolators.
We have also run a version of this board with LM293D instead of OPTO at 7.2 KHz.
Product Benefits
- Opto Isolated to reduce Motor noise from affecting computer supply
- Controls 2 Motors
- High Efficiency operation
Product Features
| Output Current (Continuous) - per motor |
8 A |
| Output Current (Surge) - per motor |
20 A |
| Weight |
> 100 grams |
| MOSFETs |
IRLZ34 |
| On Restistance |
0.050 Ω |
| Logic Interface |
Opto Isolated Dir & PWM |
| Supply Voltage |
9 V to 25 V |
| Connectors |
10 Pin Ribbon, 8 screw terminals |
Screw Terminals for power and motor connections:
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
| TACH 1 |
TACH 2 |
MR 2 OUT |
MR 2 OUT |
MR PWR IN - |
MR PWR IN + |
MR 1 OUT |
MR 1 OUT |
10 Pin ribbon cable connector to processor:
| 1 |
GND |
MOTOR 2 DIR |
6 |
| 2 |
GND |
MOTOR 2 PWM |
7 |
| 3 |
TACH 2 |
TACH 1 |
8 |
| 4 |
GND |
MOTOR 1 DIR |
9 |
| 5 |
GND |
MOTOR 1 PWM |
10 |
