| 摘要 |
An apparatus for inductive load control comprises a switch connected between a voltage source and an inductive load, switch input is connected to a logic unit, a unit for suppressing self-induction current, which is connected in parallel to the load and consists of a diode and a transistor unit comprising a transistor, base of which is connected to common point of a resistor and a stabilitron that forms a series circuit connected via the resistor to emitter, via the stabilizer – to transistor’s collector which are input and output of the transistor unit, correspondingly. Additionally, in the unit for suppressing self-inductance current a transformer and a diode are incorporated. A first transformer winding is connected between emitter and base of the transistor, a second winding of the transformer is in series connected to the diode and the transistor unit. The proposed implementation provides reliability growth, increasing efficiency factor and simplification of the apparatus. |
