| 摘要 |
<p>This is a power transfer circuit for transferring power from a d.c. input (11) to a load (12) by way of an air gap (13) in a ferromagnetic core (14), so that there is contactless transfer of energy across the gap. The core includes an input winding (16) whose inductance depends upon the length of the air gap (13), and which inductance determines the resonance frequency of an oscillator including a capacitor (22) connected across the winding (16). The oscillator includes a pair of switching transistors (T1) and (T2) and generator sinusoidal oscillations. </p> |
