| 摘要 |
Provided is contactless power-feed equipment that can avoid energy waste that accompanies switching. A primary side comprises a DC power-supply device (11), a power-feed device (12), and a power-feed unit (13), and a secondary side comprises a power-receiving unit (15). The power-feed device (12) comprises: an insulating transformer (24) comprising a primary coil (22) with a center tap (22a) to which DC current is supplied, and a secondary coil (23) connected to the power-feed unit (13); a resonance capacitor (25) connected in parallel with the secondary coil (23) of the insulating transformer (24); a first diode (26) and a first Zener diode (29) connected to one end (22b) of the primary coil (22); a second diode (27) and a second Zener diode (32) connected to the other end (22c) of the primary coil (22); a first transistor (35) connected to the first diode (26); and a second transistor (36) connected to the second diode (27). |
