
I am doing a heavy vehicle project and putting a regenerative braking system into the vehicle. It also has a supercapacitor module in parallel with the battery (which has the same voltage), and the goal is to
- Share the current during acceleration (s1 and s2 closed)
- Charge the supercapacitor (only) during braking (s1 open and s2 closed)
Because I am a student and have limited money, I don't want to blow up anything. Will this circuit have a voltage spike? Also, does this circuit need a dc-dc converter? (emf of the motor will be close to 12 volts during braking)
Materials
Battery: 12 V 10 ah
Supercapacitor: 15 V (only using up to 12 V) 55 Farad
Switch: 30 V 10 A relay with diodes
Motor: 775 DC Motor
H bridge: DROK L298 Dual H Bridge
I want to feed the supercapacitor constant 12 volts from the motor, but I don't know if I can build a bidirectional DC-DC motor. Is there any alternative solution?