VELOSCRITTURE

VALLECROSIAThe bike headlight and taillight Shine only during the movement of the machine when Wellenreiter (“Dynamo”). Simple electronic device will help you to correct this deficiency. Here’s how it works.
When the bike starts moving, the relay K1 (see schematic diagram) and its contact group K1.1 connects the generator to the lamp HL1. At low speed or stops, the voltage applied to the winding of K1 decreases, and the movable plate returns to its original position, connecting the lamp HL1 to the battery GB1. At the time of switching the lamp is not flashing, parallel to it is connected to the oxide capacitor C1 of large capacitance, which in the pauses energizes the lamp. As a result, the headlamp gives you the light and when the Bicycle is moving, and during stops.
 
Schematic diagram of the automatic headlamp switch.
Schematic diagram of the automatic headlamp switch.
 
The device can apply a series of diodes D226 or D7, capacitor K50-6, relay RES-10 (RS4 passport.524.303).
An automatic switch mounted on the printed circuit Board size 60X50 mm (see drawing) made of foil fiberglass or Micarta thickness of 1…1.5 mm. Charge with the battery placed in a regular tool bag and a front frame of the bike. For switch at the end of the bags need to cut a hole Ø 10…12 mm.
 
Circuit Board automatic devices with the layout of the elements.
Circuit Board automatic devices with the layout of the elements.
 
Location of the electronic device on the frame of the bike.
The location of the electronic device on the frame of the bike:
1 — tool bag with card and battery, 2 — switch, 3 — tool bag.
 
LEONTYEV A., Novokuznetsk, Kemerovo region.

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