D.c. power supply for recreational vehicle

Details D.c. power supply for recreational vehicle D.c. power supply for recreational vehicle

H - Electricity

02

J

320/11

H02J 7/04 (2006.01) H02J 7/34 (2006.01)

Patent

CA 1084991

Abstract of the Disclosure Apparatus for supplying electrical power to d.c. loads such as lights, pumps and the like in a recreational vehicle. A converter is connected to an a.c. power source external to the vehicle to convert a.c. power therefrom to d.c. power and to supply the d.c. power produced to the loads. The converter has a maximum d.c. current output rating. A chargeable battery supplies d.c. power to the loads when an ex- ternal a.c. power source is unavailable. A battery charging circuit is supplied with d.c. power by the converter for charging the battery so it has sufficient stored energy to supply d.c. power to the loads. The converter supplies power to the battery charging cir- cuit concurrently with the supply of d.c. power to the loads. The power demand on the converter both by the d.c. loads and the battery charging circuit is sensed and the supply of power to the battery charging circuit is interrupted when the demand reaches a predetermined level whereby charging of the battery is thereupon interrupted and all the d.c. power up to the maximum current output rating of the converter is made available to the d.c. loads.

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