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  • Controlling 3-Phase AC Induction Motors Using the PIC18F4431
    than the PIC18F452 or PIC16F7X7. Practically speaking, control of a 3-phase AC induction motor requires pulse-width modulated control of the six switches of a 3-phase inverter bridge connected to the motor's stator windings (Figure 1). The six switches form 3 pairs of "half-bridges", which can
  • 3-Phase PFC Topology Using Constant Power Control
    /Source Inverter (PSI), can help reduce the SiC component costs while achieving 99% PFC efficiency. This paper presents results from an experimental hardware prototype, demonstrates the advantages of the topology and explores further theoretical improvements of the Total Harmonic Distortion (THD
  • Sizing Three-Phase Inverters for Single-Phase Power Applications (.pdf)
    Although Hitachi does not offer inverters above 3 hp specifically sized and rated for single-phase operation, single-phase power can be safely used with larger 3-phase rated inverters, provided that care is taken to properly upsize and apply the inverter. As background, for a given power (kW/hp
  • Feeding an AGV Industrial Robot with a 3ph Inverter
    Industrial robots are widely used in industrial automation environments and need to be powered by 3-phase 3x400Vac industrial voltage. This is not a problem when using devices in static locations, however, this changes when the customer decides to mount them on an AGV (Automatic Electric Vehicle
  • Brushless DC Motor Control Using PIC18FXX31 MCUs
    A PICDEM TM MC demo board was used to develop, test and debug the motor control code. The PICDEM MC has a single-phase diode bridge rectifier, converting AC input to DC and a power capacitor bank that keeps a stable DC bus. A 3-phase IGBT-based inverter bridge is used to control the output voltage

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