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E-Circuit Motors

Technology

Overview
E-Circuit technology optimizes a unique and proprietary highly efficient, power dense and high torque permanent magnet synchronous motor/generator. ECM machines share the advantages of other brushless air-gap winding axial-flux machines:
  • Field excitation losses are eliminated resulting in significant rotor loss reduction, improving motor efficiency and increasing power density.
  • They have excellent quality of motion with a complete absence of cogging torque.
  • They have planar and easily adjustable airgaps. The noise and vibration levels are less than that of conventional machines.
  • Also, the direction of the main air gap flux can be varied and many discrete topologies can be derived.
Benefits
E-Circuit machines enjoy many other exclusive advantages:
  • Their design eliminates most eddy-current and hysteresis losses permitting more efficient power production at the lightest weight possible.
  • They are designed and manufactured using existing automated printed circuit board (PCB) manufacturing methods to form a high copper density, specially-patterned stator that optimizes conductors and conductor circuits.
  • The ability to manipulate the size of the conductors on the PCB stator provides extreme flexibility in optimizing the efficiency, torque and speed of the motor. Narrow conductors are used to minimize eddy currents inside the magnetic field while wide conductors outside the magnetic field are used to reduce resistance, and special heat dissipating conductors keep the motor cool.
  • The windings are completely encapsulated thereby protecting the conductors from physical stress.
Innovation
E-Circuit Motors' core technology is patented and ECM has filed numerous patent applications covering key subsystems of this unique printed circuit board motor. The patent applications cover critical aspects of design, construction and performance including thermal, structural, and manufacturing processes.
 
Customization
E-Circuit Motors proprietary software allows optimized designs to be created in minutes which meet specific torque, power and speed requirements at the highest operating efficiency and lowest possible cost