Buck - Boost design equations

Thread Starter

gusmas

Joined Sep 27, 2008
239
Hi....

I am at breaking point... I can not find the design equations for a buck boost converter.... Does anyone have a link for them or a pdf somewhere??

Thanks... again :)
 

Thread Starter

gusmas

Joined Sep 27, 2008
239
OK so I got my buck-boost converter working in simulation! whoop... but I forgot that the buck-boost inverts the output voltage, so it is Negative with respect to ground.... Does this mean the circuit requiring the output power of the buck converter can just swap around the connections at the output? sounds dodgy to me...
 

crutschow

Joined Mar 14, 2008
34,282
OK so I got my buck-boost converter working in simulation! whoop... but I forgot that the buck-boost inverts the output voltage, so it is Negative with respect to ground.... Does this mean the circuit requiring the output power of the buck converter can just swap around the connections at the output? sounds dodgy to me...
You possibly could if you have a floating ground at the converter input, but otherwise Google "buck-boost non-inverting converter" to find several references to that.
 
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