First of all, where're connection of your load or smoothing inductor?
Sound like u r reversing both output transistor. both of them are NPN transistor, they need higher voltage at Collector and lower voltage at Emitter to switching.
any mean, U must have some pull up transistor at Collector (pin 12&13) to forward bias them.
SG3524 buck converter
in Power Electronics
Posted
First of all, where're connection of your load or smoothing inductor?
Sound like u r reversing both output transistor.
both of them are NPN transistor, they need higher voltage at Collector and lower voltage at Emitter to switching.
any mean, U must have some pull up transistor at Collector (pin 12&13) to forward bias them.
regard.