Re: Need help with electrical stuff
To answer your question. Yes the white wire is from the motor. The whole design is to use power from the white wire to trickle charge the 6V batt. while using the lights.
Here is an explanation of current flow in the zener system.
motor off, lights off – No current flows.
motor off, lights on – Current flows from the battery to the lights.
motor running, lights off, battery fully charged – When white wire voltage is below the battery voltage, no current flows. When the white wire voltage rises above 6.8v, current is shunted through the power resistor.
motor running, lights off, battery below full – When the white wire voltage rises above the battery voltage, current flows into the battery to charge it.
motor running, lights on – Current flows from the battery to the lights. All white wire current flows to the lights. The white wire only flows current when it produces a voltage that is higher than the battery voltage.
the parts are listed in this post earlier some have the part numbers for Radio Shack because that's where I got my parts from. I have since sold the motorized bicycle that had that set-up but I am probably going to build another one.
Hope it Helps. I am also a proud member of the 20 MPH. club