This document is about the STEVAL-IHM041V1 universal motor driver with speed control based on STM8 and Triac (US version). The product features input voltage 120 V/60 Hz, motor current 7 A RMS, phase control for universal motor drive, open loop or closed loop speed regulation, voltage and current sensing, for sensorless operation (optional), debug outputs, AC tach, Hall sensor or opto-sensor for speed feedback, and RoHS compliance.
The STEVAL-IHM041V1 is a demonstration board designed for universal motor speed control using phase angle control based on a Triac and an STM8S103F3P6 microcontroller. It supports both open loop and closed loop speed regulation modes.
| Input voltage | 120 V/60 Hz |
|---|---|
| Motor current | 7 A RMS |
| Microcontroller | STM8S103F3P6 |
| Control method | Triac-based phase angle control |
The board may be operated in either open loop mode or in closed loop speed control mode.
Yes, the open loop mode may also be used as a lamp dimmer.