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Triac-Based Motor Controller

Overview

Description

Triac-based motor controllers are well-suited for controlling AC motors, commonly found in household appliances, HVAC systems, fans, and more. As the demand for building automation and smart home technologies grows, there's an increasing need for systems that are easy to integrate, cost-effective, and highly reliable - areas where triac-based motor controllers excel.

This triac-based motor controller design showcases a robust, compact air conditioning system, making it ideal for small-scale applications, including vehicle systems. The triac-based approach simplifies the overall design, reducing manufacturing costs and complexity, which is perfect for mass-produced products.

System Benefits​:

  • Easy implementation with optimized triac control for a simplified compressor motor control system.
  • Flexible system design with low-power, high-performance 32-bit MCUs.
  • A high voltage AC/DC buck regulator converts rectified AC power for simple operation.
  • Enhanced system monitoring for fail-safe protection, sensing current and load.

Comparison

Applications

Block Diagram

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4:3 ratioConnector Hallow ArrowSheet.104Sheet.1Sheet.2Sheet.3Sheet.4US106US106US106Zero Cross Detection CircuitZero Cross Detection CircuitZero Cross Detection CircuitHigh Voltage BuckHigh Voltage BuckHigh Voltage BuckTemperature & HumidityTemperature & HumidityTemperature & Humidity Current Sense Current Sense Current SenseCurrent SenseCurrent SenseCurrent SenseTriacsTriacsTriacsTriacsTriacsTriacsRS-485 Isolated TransceiverRS-485 Isolated TransceiverRS-485 Isolated TransceiverLCD MonitorSheet.36Sheet.37MotorSheet.39Sheet.40MMSignal GroundSheet.42Sheet.43Sheet.44Sheet.45Sheet.46Signal Ground.47Sheet.48Sheet.49Sheet.50Sheet.51Sheet.52RelayRelayRelay5V/21mA5V/21mA5V/21mA5V/180mA5V/180mA5V/180mALoad (Compressor, Condenser, Fan, 4 way valve)Load (Compressor, Condenser, Fan, 4 way valve)Load (Compressor, Condenser, Fan, 4 way valve) 2 322Sheet.86 4 444Sheet.89 4444Sheet.925V/6mA5V/6mA5V/6mA5V ISO (From PC)5V ISO (From PC)5V ISO (From PC)Sheet.105AC Filter and RectificationAC Filter and RectificationAC Filter and RectificationAC Power SourceAlternating CurrentSheet.63Signal Ground.64Sheet.65Sheet.66Sheet.67Sheet.68Sheet.69115/230V115/230V115/230V NNN LLLSheet.101Sheet.103Sheet.107Sheet.110Connector 1.161Sheet.112Connector 1.161.113 5V/21mA5V/21mA5V/21mASheet.116Connector 1.161.117Sheet.121Sheet.124Sheet.126Sheet.127 4 444Sheet.130Sheet.131Sheet.135Vertical Wire Bundle.140 222Sheet.142Sheet.143Sheet.144Sheet.145Sheet.146LLL5V/62uA5V/62uA5V/62uASheet.152MCUMCUMCUMCUINTINTINTVssVssVss I2CI2CI2CGPIOGPIOGPIOPWMPWMPWMADCADCADCUARTUARTUART VccVccVccComputer TowerSheet.214Sheet.215Sheet.216Sheet.217Sheet.218Sheet.219Sheet.220Sheet.221Sheet.222Connector ArrowConnector Arrow.226Connector Arrow.227Bi-directionalConnector Arrow.229Line Hallow Arrow
Exiting Interactive Block Diagram

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