Figures (20)  Tables (0)

    • Figure 1. 

      Equivalent circuit diagram of S-S compensated coil system.

    • Figure 2. 

      (a) Structural characteristics of dielectric-substrate-bilateral S-S compensation. (b) Frequency-dependent input impedance characteristics.

    • Figure 3. 

      Voltage and current waveforms at the transmitter side of the S-S compensated coil under operating conditions.

    • Figure 4. 

      (a) Equivalent circuit diagram of the S-S compensated coils under no-load condition. (b) Functional relationship between input impedance and frequency.

    • Figure 5. 

      Voltage and current waveforms at the transmitter side of the S-S compensated coil under no-load conditions.

    • Figure 6. 

      Frequency-dependent input impedance characteristics of AWC.

    • Figure 7. 

      (a) PAWC structure. (b) The structural diagram of the PAWC on the upper side of the Rogers board. (c) Exploded view of the PAWC coupling structure.

    • Figure 8. 

      Overall coupling structure.

    • Figure 9. 

      Magnetic field distribution between coupled structures.

    • Figure 10. 

      (a) The relationship between input impedance and frequency of the unilateral PAWC. (b) The relationship between input impedance and frequency for coupled bilateral PAWC.

    • Figure 11. 

      Fabricated PAWC structure.

    • Figure 12. 

      Experimental setups of the fabricated PAWC. (a) Unilateral transmission structure testing. (b) Bilateral transmission structure testing.

    • Figure 13. 

      Experimental-simulation comparison of PAWC impedance characteristics. (a) Transmitter-only operation with OCF mode at 13.56 MHz. (b) 5 mm receiver spacing with SCF mode impedance at 13.56 MHz.

    • Figure 14. 

      Switching state verification of PAWC. (a) TX coil only-safety cutoff mode and zero-current protection. (b) Receiver in charging position, showing high-efficiency transfer mode and auto-activation feature.

    • Figure 15. 

      Experimental setups of PAWC WPT system without compensation circuits.

    • Figure 16. 

      Measured voltage and current waveforms at both transmitting and receiving coils under 110 Ω AC load condition.

    • Figure 17. 

      Measured transmission efficiency of PAWCs across 50−300 Ω AC load range.

    • Figure 18. 

      Waveforms of load-side voltage and current under different loads.

    • Figure 19. 

      Test platform for DC-DC systems based on PAWC (coil spacing: 5 mm), used in monitor illumination experiments.

    • Figure 20. 

      PAWC system automatic shutdown validation via receiver disconnection.