Table 1 Design parameters of the proposed devices in this work.
2-Phase version | 5-Phase version | |
|---|---|---|
Winding layers | 2 | 5 |
PM material | Nd–Fe–B | Nd–Fe–B |
FPCB insulation material | PI | PI |
Yoke material | Cold rolled steel | Cold rolled steel |
Active region | 80 mm × 10 mm | 50 mm × 10 mm |
Full-step size / PM pitch | 1 mm/4 mm | 0.2 mm/2 mm |
Phase shift/winding pitch | 1 mm/4 mm | 0.2 mm/2 mm |
Trace width (µm) | 250 | 200 |
Trace thickness (µm) | 18 | 18 |
FPCB thickness (µm) | 100 | 250 |
PM thickness (mm) | 1 | 2 |
Yoke plate thickness (mm) | 1 | 1 |
Air gap (mm) | 0.5 | 0.5 |
System total thickness (mm) | 4.5 | 6.5 |
