| 摘要 |
protection of inductive load power circuits against voltage surges during their disconnection. SUBSTANCE: protective gear has power supply, contactless switching device whose input is connected to positive pole of power supply, inductive load connected between output of contactless switching device and negative pole of power supply, diode, and voltage regulator diode. Diode and voltage regulator diode are connected in series between negative pole of power supply and control input of contactless switching device, cathode of voltage regulator diode being connected to negative pole of power supply and diode cathode, to control input of contactless switching device. EFFECT: improved reliability and reduced size of protective gear. 1 dwg
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