One of the advantages of the mosfet driver transformer is that it drives the mosfets with negative voltage. ![]() With the Mosfet driver transformer, the current consumption of the SG3525 has increased to 38mA, which is not much at all. My teacher ARSLAN used additional transformers in his circuits.Īuthor note The SG3525 consumes about 10mA without connecting a drive transformer. Higher current will be required in the use of IR2110 or similar modfet drivers. Most likely, there is no need for high current since mosfet driver transformer is used. In the meantime, the supply voltage of the SG3525 integrated used in the control of SMPS circuits was provided with a conventional transformerless power supply system, the 220v mains voltage was reduced with a 1uf 400V capacitor and regulated with a 13V 1W zener after DC rectification. Actually, using toroidal in power transformer and combination with SG3525 + IR2110 SMPS Circuits of my teacher ARSLAN for mosfet driver. Toroidal transformer winding information is given, but it is said that especially the mosfet driver transformer should be observed with an oscilloscope and certain values should be measured. ![]() ![]() There are additional diodes, regulators and changes in the winding of the output power transformer according to the power and additional outputs. There are no major changes in SMPS circuit diagrams.
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