Boost converter with current and voltage feedback

198

02:41:27

12 v to 25 v boost converter 2a mosfet current limit and output voltage feedback

published 5 years ago

PrathikP

5 years ago

A boost converter is a flyback type converter, i.e, it's output voltage rises during the off time of the switch. The consequence of that is you cannot use a pure logic circuit for voltage feedback. If you do so, then your boost converter will skip pulses due to the aforementioned reason. A boost converter must have an error amplifier feedback. A pure logic feedback like you will only work for buck/forward converters as the output voltage rises during the on time of the switch.

PrathikP

5 years ago

Here is an example of an error amplifier feedback https://everycircuit.com/circuit/5301189766545408

PrathikP

5 years ago

And here is a current mode boost converter https://everycircuit.com/circuit/4726421006843904

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