SU1453525A1 - Device for controlling single-winding electromagnetic impact-action motor - Google Patents

Abstract

The invention relates to electrical engineering, specifically to the control of electromagnetic motors of reciprocating motion with a frequency of working strokes less than the frequency of the single-phase supply network. The purpose of the invention is to enhance operational capabilities and increase reliability by adjusting energy and frequency of shocks. The device contains a monotonically increasing pulse generator and a pulse shaper equipped with adjustable resistors 14 and 4, the pulse shaper being made on a single junction transistor 16, the first base of which is connected to the connection point of the voltage divider resistors 17 and 18. The current pulses in the motor winding 1 form a thyristor 2, the control circuit of which includes an auxiliary thyristor 9, the power circuit of which is connected via the threshold element 8 and the current limiting resistor 7 with the capacitor 6 of the generator of monotonically increasing pulses, and the control circuit - with the resistor 20 of the generator pulses. 2 Il. i (L s

Description

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Claims (1)

Claim A device for controlling a single-winding electromagnetic shock motor, comprising a main thyristor connected to the terminals for connecting to a single-phase AC network, a pulse shaper and a monotonically increasing pulse generator. Connected to the anode and cathode of the main thyristor by inputs, a threshold element and an auxiliary thyristor connected in series the output of the generator is monotonous. incremental pulses with a control electrode _{5 of the} main thyristor, and the control electrode of the auxiliary thyristor connected to the output of the pulse shaper, which includes serially connected 10 ballast resistor and a zener diode, and the generator of monotonically increasing pulses consists of a series-connected diode, resistor and capacitor, the output of which 15 associated with a threshold element, characterized in that, in order to expand operational capabilities and increase reliability by regulating er2Q of the shock wave frequency and frequency, the pulse shaper is equipped with a capacitor, a charging and discharge circuit I by a voltage divider shunting a series-connected ballast resistor and a zener diode, the common point of which is connected through a charging circuit including a variable resistor to the first terminal of the capacitor, the second terminal of which is connected 30 to the anode of the zener diode, the discharge circuit includes a single-junction transistor emitter connected to to the first output of the capacitor, the first base to the midpoint of the voltage divider35 and through the resistor to the zener diode cathode, the second base to the yn-. equal to the auxiliary thyristor electrode and through a load resistor to the zener diode anode; in 4Q, the ballast resistor is connected through the diode to the anode of the main thyristor, and the monotonically increasing pulse generator resistor is adjustable. i % 1! 1! t ..........._________—---------- * Figure 2