This is DC to DC that I have bought from Aliexpress. It is step-up input voltage 8.5V-48V and Output 10V-50V can handle 10A 250W But the problem with this guy is that I needed 70V, so I have decided to do changes …
What you need to do is replace these: 1. C4 and C5 – put instead one capacitor of 470uF/100V 2. G1 replace to 12CN10N (100V Mosfet) 3. Add R4 resistor 3.9K which will give you output of 74V Use the links below for ordering it, thanks for your support!
Amazon link: https://amzn.to/2YO3yKD