January 16th, 2010 | 
Author: 
This circuit converts 12V DC from solar panel and battery storage system and produces 48V DC (60V) to charger the battery pack in my DAYMAK Austin electric bike. Quicker charge than OEM charger. Fantastic for someone driving an RV from campground to campground with an e bike on the back for small trips once they get to their destination. This circuit will keep the batteries fully charged and ready to go. You can also use this with a 12V battery charger charger if you original charger has given up the ghost. Or you could have a solar panel charge a battery during the day and use the energy stored to charge your electric bicycle or EV for “free” at night. Automatic circuit switches to trickle charging after battery is completely quick charged.
Duration : 0:10:1
Posted in DIY Solar Electricity | 
Tags: 12V, 12VDC, 17AH, 20AH, 48V, 48VDC, amp, audio, battery, BIKE, Board, car, charger, Circuit, CURRENT, DC, DC-DC, diy, eBike, ecomodder, Electric, free energy, homemade, hour, how, INVERTER, limited, modulator, mosfet, output, panel, PC, power, printed, pulse, PWM, solar, sony, storage, to, transformer, variable, width
You’re going to …
You’re going to need a huge solar panel if you’re going to be drawing 10-11 amps from 12 volts. That’s between 120-132 watts.
Yes the TL494 …
Yes the TL494 drives four mosfets. cool eh!
Do you use the …
Do you use the TL494 PWM driver?
Yes I designed the …
Yes I designed the circuit and made up a board layout. Etched and drilled the PC board and assembled the complete unit.
How many amps do you want it to output at 24 to 36 volts??
did u build this, i …
did u build this, i need to do something like this for my power supply im building
i want to turn 8 volts 320 A to 24 or and 36 v for experimenting and electrolysis rigs