Synchronous LLC rectifier and the ATX standard computer power supply unit

摘要

The rectifier includes the transformer (TRl) and two semiconductor diodes (Dl, DIl), the first and the second pair of resistors (Rl, RlI), (R2, R12), capacitors (Cl, CIl), the output capacitor (C3), and two transistors (T3,T13), type N- MOSFET. The transformer (TRl) includes on the secondary side the first and the second secondary winding (I, II). The transformer (TRl) includes on the secondary side the additional first and second control windings (III, IV), which are combined with one another and with the pairs of resistors (Rl, RIl) (R2,R12) and the sources of transistors (T3,T13). The pairs of secondary windings (I, II) and control windings (III, IV) are combined with a capacitor (C3), from which voltage is supplied to the output load Ro. The transistors (T3,T13) on the secondary side of the transformer (TRl) are the voltage-controlled transistors of type N-MOSFET. The computer feeder includes on the input an input system (1) combined through the LLC resonant converter (2) and the system of self-control synchronous rectifier (3) with the direct current converter of the receiver.