METHOD FOR REDUCING SWITCHING OVERVOLTAGES

The invention relates to electrical engineering, in particular to circuits for protecting switching devices from overvoltages, and to the accumulation and beneficial use of this energy to power another item of electrical equipment. The invention can be used, for example, in converter technology. A method for protecting and beneficially using the energy of switching overvoltages arising when a circuit between a transformer and an active inductive load is tripped during an operation of an item of electrical equipment consists in that the switching overvoltage energy is stored and converted by a pulse transformer power supply source which is connected to the circuits being and consists of a diode rectifier or bridge, a capacitor which is connected to an output of the diode rectifier or bridge, a pulse transformer connected to the capacitor, an electronic switch, an electronic switch control circuit, and an output rectifier which is connected to the transformer, and is intended for supplying another item of other electrical equipment with electrical energy. The pulse power-supply source control circuit allows regulation of the discharge duration of the capacitor depending on the duration of the switching overvoltages.