Apparatus for driving and protecting insulated gate bipolar transistor of inverse arc welder

The utility model discloses an insulated gate bipolar transistor driving and protection device of a contravariance arc welder, which mainly aims at solving the problem of protecting the insulated gate bipolar transistor (IGBT). The technical scheme is that by a one-to-two driving magnetic tank type pulse transformer, an IGBT circuit is driven by a driving circuit consisting of a group of P type field effect transistors, a group of N type field effect transistors and a pulse transformer; driving wires used in the IGBT circuit is equilong; the driving wires are two shunt wound twisted pairs, wherein, a capacitor is connected in front of the twisted pairs in parallel. A transient voltage suppressor (TVS) and a resistance are added between a control grid and an emitter of the insulated gate bipolar transistor (IGBT). The insulated gate bipolar transistor driving and protection device is mainly applied to the driving and protection of the insulated gate bipolar transistor (IGBT).