| 摘要 |
PCT No. PCT/CH95/00004 Sec. 371 Date Sep. 11, 1995 Sec. 102(e) Date Sep. 11, 1995 PCT Filed Jan. 11, 1995 PCT Pub. No. WO95/18739 PCT Pub. Date Jul. 13, 1995A bicycle lighting system comprising a dynamo generator, integrated rechargeable batteries and an integrated electronic circuitry, the bicycle being an exemplary embodiment of pedal-driven vehicles provided with standard front and rear lamps. Hitherto known systems operate with conventional dynamos having an efficiency far too low to provide power to energize lamps and simultaneously charge batteries at speeds below 15 kmph. The inventive generator is constructed such that a rotating magnetic-circuit arrangement with a stationary air-core coil and specially defined pole shoes achieve 90% efficiency. At 5 to 7 kmph, at least 4 W energy is available for energizing lamps and rapidly charging batteries. From standstill to approximately 5 kmph, the batteries energize the lamps. The electronic circuitry comprises a converter having a special voltage set-up and voltage set-down function such that for a determinate output voltage, the input voltage can be lesser than, equal to or greater than the determinate output voltage. Above 5 kmph, energy apportioning for energizing lamps and simultaneously charging batteries in ratios of 1-2:1 is rendered possible.
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