Sg3525 Ir2110 Smps Rar Rar Short Circuit

SG3525 Ir2110 SMPS for 2 different pcb diagram: 700w-800w-900w-smps-sg3525-ir2110-pcb.rar Short circuit.

SMPS circuit SG3525 and IR2110 integrated on the board in the primer drive MOSFETs IRPF450 transformer, the ETD44 feedback 4N33 opto-Kubla with the provided.

Hi, folks So I have two identical half bridge smps, each uses two mosfets and one IR2110 which drives the mosftets, both IR2110 are powered from a single small transformer and rectifiervoltage regulator.

Now heres the funny thing, when I made the first half bridge and put in the first IR2110 to drive the two mosfets of that half bridge it worked fine, now I installed the other two mosfets in the other half bridge which has a separate transformer, I inserted the second IR2110 which is also driven from the same SG3525 from which the first one gets its signal, but now when I attempt to drive both only one of them works, the other one doesnt work at all.

In other words the second half bridge i finished later works but the first one doesnt, and quite frankly because the first IR2110 is not driving the mosftets but its not dead or anything when i change the two IR2110 places they both work but only one at a time.

Sg3525 Ir2110 Smps Rar Full Half Bridge

I have attached the schematic for my smps, the schematic shows only one full half bridge but my layout for each half bridge is exactly like in the schematic only that both IR2110 are driven from a single power supply and from the same SG3525 chip.

Ok, heres a question, i checked everything twice and to be honest the driving cirucit is not that complicated since most of it is inside the ICs there is nothing wrong but everytime i try to run them together they just dont, one IR2110 works fine while the other one doesnt work, when i measure the output from the IR2110 to the mosfet gates its the output of one of the IR2110 high side gate drive that is very low, about 0.17 volts while all the other ones are at about 6.5, this is done when the mosfets have no voltage across their D-S.

Sg3525 Ir2110 Smps Rar Rar Short Circuit

Sg3525 Ir2110 Smps Rar Full Half Bridge

Sg3525 Ir2110 Smps Rar Free Download Humanatic

Sg3525 Ir2110 Smps Rar Download