I really need to step up my 3.7v to at least 6.2v. I don't want to spend money because boost converters in my country are STUPID expensive. You can give me a schematic. What I do have is: IRF520/510 Mosfet, Transistors (bc557/547/2n2222/2n3904) and a lot of capacitors and resistors.

DIY Voltage step up

Topic		Replies	Views
Voltage step up alternatives General Electronics	10	6219	May 6, 2021
Convert 3.7v to 5v DC General Electronics	14	75222	May 6, 2021
turning 3.7 volts into 6 volts General Electronics	6	1527	May 6, 2021
BOOSTER CIRCUIT General Electronics	10	1445	May 6, 2021
5V to 12V General Electronics	7	14507	May 6, 2021