| 摘要 |
A mains power adaptor 1 incorporates a fuel cell 5 for providing alternative power to a portable device when no mains power is available. The adaptor includes electrical pins 4 configured to connect with a mains power supply socket; a power converter circuit 7 having an input coupled to the electrical pins for converting mains power to a lower voltage supply; an electrical output of the lower voltage supply 2; and a fuel cell 5 switchably coupled 9 to said electrical output 2. The adaptor has a fluid connection port 12 for coupling a fluid fuel outlet (41, figs 3, 4) of a fuel cartridge (30, figs 3, 4) to a fuel inlet of the fuel cell and the fluid connection port 12 is disposed in a face of the adaptor from which the electrical pins extend. A valve (37, figs 3, 4) of the fuel cartridge is operable by engagement with the electrical pins of the adaptor.An interface arrangement (50, fig 5) may be used if the fuel cartridge has no pin receptacles. |
