| 摘要 |
<p>The converter includes a magnetic transfer circuit (T) connected between the middle point (a) of a capacitor bridge, and the middle point (b) of a bridge circuit (M). Bridge (M) consists of two thyristors, joined by two induction coils connected in series and coupled by induction in the same magnetic circuit, plus two diodes mounted in anti-parallel on the thyristors and the middle point of the induction coils and on point (a). The above circuit is fed by a rectifier, which may also be fitted with a voltage multiplier; and a multipole logic device is used to operate the thyristor inverter. Circuit (T) pref. consists of two ferrite rings, each with a middle core. Used inconverting d.c. to a.c., the use of a conventional transformer is eliminated, so both wt. and energy losses are reduced, and better are control is obtd. in welding.</p> |
