15V to 80V boost converter with simple voltage regulation

348

06:15:23

Boost Converter with crude regulation, works by switching power on/off depending on output voltage. Uses a fixed frequency / fixed duty cycle oscillator to drive the switch ( NPN transistor ) in the converter.

I have actually built a similar circuit and it works surprisingly well, I think my circuit had some hysteresis on the comparator this one doesnt

published 8 years ago

hurz

8 years ago

Tell us a little more about your real experiment. You know, just the importante things!

gasboss775

8 years ago

I made that circuit around the end of 2015, will need to rake about and see if I have a hand drawn schematic

MichelSilva

8 years ago

congratulation

hurz

8 years ago

And what do you remember about it?

gasboss775

8 years ago

The priciple was the same fixed frequency, fixed duty cycle oscillator controlling the switch ( N mosfet I think ) was gated by a schmitt trigger monitoring the output voltage. Wider hysteresis = more stability but also more ripple, which could be reduced by subsequent filtering.

hurz

8 years ago

And the unimportant things are current voltage in and out?

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.