CIRCUIT ARRANGEMENT FOR REALIZATION OVERVOLTAGE AND OVERCURRENT PROTECTION DRIVER CIRCUIT OF HIGH POWER IGBT

摘要

the object of the invention is to propel the igbt drive circuit transistors, the collector voltage of each kikapcsolu00e1skor u00e1ramku00f6ru00f6nkeresztu00fcl differentiating feedback detection implementedmu0171ku00f6du0151tranziens feszu00fcltsu00e9gkorlu00e1tozu00e1ssal effectively, the network u00e9rzu00e9kelu00e9su00e9nalapulu00f3 voltage surge protectionthe igbt collector to emitter based on feszu00fcltsu00e9gtelu00edtu0151du00e9su00e9n against excessive current protection circuit, suitable for hard.the igbt power device and the emitter voltage control between the dc component of induktivitu00e1sonesu0151 utu00e1ntranszformu00e1toros strengthening and integration of leku00e9pzett soft zu00e1rlatiu00e1ramokkal protection against.according to the invention, a drive u00e1ramku00f6ru00e1ll kapcsolu00f3elemeket and resistors containing tranzisztorosvu00e9gfokozatbu00f3l (tvf) whose output is ellenu00e1llu00e1sokon keresztu00fclkapcsolu00f3dik the vezu00e9rlendu0151 tranzisztthe or gate (igbt) elektru00f3du00e1ju00e1ra (g), inputs the logic control unit (lve) kimeneteire to join us,in the control unit is connected to one of the bemenetu00e9re (lve) afeszu00fcltsu00e9gemelkedu00e9st sensor circuits (mother) output, inputs, this avezu00e9rlendu0151 transistor (igbt) is connected to kivezetu00e9su00e9re collector (c),here, they will join the saturation voltage sensor (esp) over voltages, and the sensor inputs (htu00e9) circuits.the control unit melyekkimenetei (lve) second and third bemenetu00e9recsatlakoznak (lve), the control unit bemenetu00e9re u00e1ramszintu00e9rzu00e9kelu0151 (the fourth circuit output is connected to u0103szu00e9)this avezu00e9rlendu0151 inlet and a power transistor (igbt) is connected to the kapcsu00e1ra (e)furthermore, the igbt element gate electrode (g) of the anchor (s), and control emitterkapcsa joins between the gate voltage limiting circuit (gfk)the logic control unit which inputs (lve) mu00e1sikkimenetu00e9re joins. implementation of the invention, the circuit includes elrendezu00e9sblokkvu00e1zlatu00e1t figure 1.in the figure are indicated between the low voltage side and the side anagyfeszu00fcltsu00e9gu0171 levu00e1lasztu00e1stbiztosu00edtu00f3, necessary for the operation of the drive circuit.but the talu00e1lmu00e1nyru00e9szu00e9t not forming host (ifu0103 pulse), the transmitter (i), as well as the failure of the operation, including those required for propulsion, and the tu00e1pfeszu00fcltsu00e9getelu0151u00e1llu00edtu00f3 (tu0103p) circuits.the area of application of the invention, a switching circuit, powered by an array of such devices felu00e9pu00edtettnagyteljesu00edtmu00e9nyu0171 igbt with, whether they are stationary or vehicle drives, principal, respectively.auxiliary equipment. oh