SU1120488A1 - Bistable device - Google Patents

Abstract

The BIS is an ABILE DEVICE containing a control key, a diode, a capacitor and a remote switch, the first terminals of the windings of which are connected to the first power supply pitch, between the first and second terminals of the first winding is connected to the opposite polarity of the supply voltage, in order to simplify the device and reducing its power consumption, the first lead of the capacitor is connected to the second lead of the first winding of the remote switch, the second lead to the switch contact of the control key, the closing contact m is connected to the second supply rail, a normally closed - to the second terminal of the second coil remote switch.

Description

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00 00 The invention relates to a pulse technique and can be used in various discrete automation devices. A switching device containing a key transistor, a remote switch, a diode, a resistor, a control switch and a power supply voltage D 3 is known. Closest to the proposed technical essence is a bistable device (relay trigger) containing a control switch, a capacitor, and a remote A switch, the first terminals of the windings of which are connected to the first power bus, between the first and second terminals of the first winding, a diode of opposite polarity of the supply voltage C2 is turned on. The disadvantages of the known devices are Their complexity and significant power consumption, since in any stable state current flows through one of its resistors. The aim of the invention is to simplify the device and reduce its power consumption. The goal is achieved in a bistable device containing a control key, a diode, a capacitor, and a remote switch, the first terminals of the windings of which are connected to the first power bus, between the first and second terminals of the first winding is connected to the opposite side of the supply voltage the capacitor lead is connected to the second pin of the first winding of the remote switch, the second pin to the switch contact of the control switch, the make contact of which is connected to the second power bus, and Mykal - to the second terminal of the second winding remote switch. The drawing shows a schematic diagram of the proposed device. The bistable device contains a remote switch (DP) 1, with the first 2 and second 3 windings, the first power supply bus 4, the diode 5, the capacitor 6, the control switch 7, the second power bus 8 and the contact group 9 of the LP 1. In accordance with the principle a circuit in a bistable device containing a control switch 7, a diode 5, a capacitor 6 and a remote switch 1, the first terminals of windings 2 and 3 of which are connected to the first power bus 4, between the first and second terminals of the first winding 2 supply voltage first you The water of the capacitor 6 is connected to the second output of the first winding 2 of the remote switch, the second output to the switching contact of the control key 7, the closing contact of which is connected to the second power bus 8, and disconnecting to the second branch of the second winding 3 of the remote switch 1. Bistable device operates as follows. When there is a supply voltage on the tires 7 and 8 when the switching and closing contacts of the switch 7 are closed, the charge current of the capacitor 6 begins to flow through the first winding 2 of the remote switch 1, resulting in the transition of the contact group 9 DP 1 to another position and the charge capacitor 6 before the voltage of the power source. To change the state of the switching device, it is necessary to change the position of the key 7, i.e. return it to its original position, then the capacitor 6 is discharged through diode 5 and the second winding 3 of DP 1, as a result of which DP 1 switches and its contact group 9 returns to its original position. Thus, to change the position of the remote switch (transfer to the working and initial position), one portion of the electric power, which is stored in the capacitor 6, is consumed as the current passes through the first winding from the power source, is reset to the initial state. capacitor 6 on the winding bounce. Diode 5 performs two functions: it blocks the self-induction EMF of the working winding and closes the discharge circuit of capacitor 6 to the second winding 3. The self-induced EMF of the winding is blocked by capacitor 6. The capacitor capacitance value is approximately calculated by the formula r R where U is the capacitance of the charging capacitor, Ф ;

311204884

R - active resistance winds the minimum amount of electric remote switching-energy.

tel. Ohm; Techno-economic effect ea - switching time distance is in what is provided

foot switch, s. 5 simplifies the device, decreases it

With optimal velc-not conden-power consumption and all groups of the conservator, the bistable device in mot-cycles can be used for

rtBHT on - off demand-switching of external circuits.

Claims (1)

BISTABLE DEVICE containing a control key, a diode, a capacitor and a remote switch, the first terminals of the windings of which are connected to the first power bus, a diode of opposite polarity of the supply voltage is connected between the first and second terminals of the first winding, characterized in that, in order to simplify the device and reduce its energy consumption, the first output of the capacitor is connected to the second output of the first winding of the remote switch, the second output to the switching contact of the control key, the closing contact It is connected to the second power bus, and the disconnecting one to the second terminal of the second winding of the remote switch. 1 1120488