SU1080114A1 - Repeater for electric clock systems - Google Patents

Abstract

A REPEATER FOR ELECTRIC-HOUR SYSTEMS containing the first diode, the cathode of which is connected to the windings of the first relay and the first RC circuit, the second diode, the anode of which is connected to the parallel winding of the second relay and the second RC circuit, the moving and closed contacts of the first contact group of the first relays, which are connected respectively to the first output terminal of the device and to the closed contact of the first co-tact group of the second relay, which is characterized by the fact that, in order to increase the reliability of the repeater operation, If we reduce the voltage level of the commutating relays, a pulse shaper, a bridge rectifier, additional contact groups and a second relay are inserted into it, while the rectifier inputs are connected by an anode of the first diode and the corresponding output winding terminal of the first relay, the first output of the rectifier A mitel is connected to the cathode of the second diode and to the open contact of the additional contact group of the second relay, and the second output of the bridge rectifier is combined with the corresponding winding terminal of the second relay, with a closed The first and auxiliary contact groups of the second relay and the minus bus of the pulse driver power supply terminal, the movable contact of the auxiliary contact group of the second relay are connected to the input of the pulse driver, the output of which is connected to the open contact of the first contact group of the second relay and to the resistor connected to the positive bus pulse driver, and the moving contact of the first contact group of the second relay is connected with the open contact of the first contact group and closed to On-touch is an additional contact group of the first relay, the movable contact of which is the output bus of the device.

Description

The invention relates to electric watch systems, in particular to repeaters, and is intended to be formed and amplified by the power of the pulses coming from the output of the primary clock.

A device is known for forming and sending pulses to a line by means of a contact which is closed by means of a temporary mechanism. A transistor is connected in parallel to the contact, outputting the amplifier circuit, the input and output of which are connected via parallel capacitance to the load 13.

However, this device has a reduced reliability.

Closest to the invention is a repeater for electric clock systems comprising a first diode, the cathode of which is connected to a parallel winding of the first relay and the first RC circuit, a second diode, an anode of which is connected to a parallel relay of a second relay and a second RC circuit, the movable and closed contacts of the first contact group of the first relay, which are connected respectively with the first output terminal of the device and with the closed contact of the first contact group of the second relay, the movable contact of which is connected to the second output terminal of the device, the first winding lead of the third relay is connected to the combined anode of the first relay and the cathode of the second relay, the second winding lead of the third relay is connected to the combined winding leads of the first and second relays, the moving contact of the contact group of the third relay is connected to the collector of the transistor whose emitter connected to the open contacts of the first contact group of the first relay, the first contact group of the second relay and the contact group of the third relay, the emitter and collector of the transistor are connected to the base transistor, respectively, through a resistor and a third IC circuit, the collector of the transistor is connected to the negative power bus, the closed contact of the first contact group of the second relay is connected. Through the fuse to the positive power bus, the combined terminals of the first RC circuit resistor and the second RC circuit capacitor are connected to the second terminal of the winding of the third relay t2j.

However, this device has a reduced reliability of operation due to the burning of the contacts of the first and second relays.

The purpose of the invention is to increase reliable and. repeater operation for electro-clock systems by reducing the voltage of the switched relays.

This goal is achieved by the fact that a repeater for electric clock systems containing a first diode, the cathode of which is connected to a parallel winding of the first relay and the first RC circuit, a second diode, the anode of which is connected to a parallel winding of the second relay and the second (with, -chain, The moving and closed contacts of the first contact group of the first relay, which are connected respectively with the first output terminal of the device and with the closed contact of the first contact group of the second relay, are entered, the pulse driver, tovoy straightening rshtel additional contact groups of the first and second relay, the inputs of a bridge rectifier connected to the anode of the first diode and to a corresponding terminal of the winding of the first relay, the first output of the bridge rectifier

connected to the cathode of the second diode and to the open contact of the additional contact group of the second relay, the author of the bridge rectifier output is combined with the corresponding winding terminal of the second relay,

with the closed contacts of the first and additional .contact groups of the second relay and with the minus power bus of the forglirovatel pulses

the contact group of the second relay is connected to the input of the pulse driver, the output of which is connected to the open contact of the first contact group of the second relay and to a resistor connected to the positive power supply bus of the pulse driver, and the connecting contact of the first contact group of the second relay is connected to the open contact of the first contact group and the closed contact of the auxiliary contact group of the first relay, the moving contact of which is the output bus of the device.

FIG. 1 shows an electrical circuit diagram of a repeater for electro-clock systems; FIG. 2 is a diagram explaining the formation of pulses.

Repeater for electric hourly

system contains the winding of the first relay 1, the contacts of the first relay 1: 1-1, 1-2, 1-3, 1-4, 1-5 and 1-6, the winding of the second relay 2, the contacts of the second relay 2: 2-1, 2-2, 2-3, 2-4, 2-5 and

2-6, shaper 3 pulses, bridge rectifier 4, capacitor 5 and resistor 6 of the first RC circuit, capacitor 7 and resistor 8 of the second RC circuit, first diode 9, second diRD 10, resistor 11.

Repeater for electric watch systems works as follows.

In the absence of an input pulse (from the primary clock) windings of the first 1 and second 2 relays are de-energized (FIG. 1), the input of the fop I and the driver

3 through the contacts 2-1 and 2-3 of the second relay 2 is short-circuited and connected to the negative power bus. When the input pulse arrives (Fig. 2a on the left), the first 1 and second 2 relays operate. When the contacts 2-1 and 2-2 are closed, the input of the imaging unit 3 is connected to the first output of the bridge rectifier 4..

Shaper 3 output through closed contacts 2-4 and 2-5, as well as | Through closed contacts 1-1 and 1-2

appears to be connected to the first output terminal. In this case, the second output terminal through the closed contacts 1-4 and 1-5 is connected to the negative power bus.

From the exit of the bridge straightener

4 impulse of the reverse polarity is fed to the input of the imaging unit 3 (Fig. 26, left), which forms at its output the leading edge and the apex of the trapezoidal pulse (Fig. 2c, left). The duration of the formation process is determined by the pulse duration at the input of the former 3. At the end of the input pulse, the first 1 and second 2 relays remain switched on due to the appropriate choice of the time constant of the first and second, KS circuits containing, respectively, series-connected capacitor 5 and resistor b, capacitor 7 and a resistor 8. In this case, the trailing edge of the trapezoidal pulse is formed at the output of the imaging unit 3 (Fig. 2d, left). Like the length of the leading edge, the length of the falling edge is determined with the parameters of the former 3 (the length of the leading edge is determined by the parameters of the first ftc circuit, and the length of the falling edge of the second RC chain), and with respect to the length of the falling edge the values of these parameters are chosen by calculating that the duration was less than the delay time

to turn off the first 1 and second 2 relays.

Thus, by the time the trailing edge ends, the contacts lyl, 1-2 and 1-4 / 1-5 remain closed and their opening, like closing, occurs at times when the current passes through them Afe.

When the next input pulse arrives, i.e. a negative polarity pulse (Fig. 2a, right), due to the presence in the winding circuit of the first relay 1 of the first diode 9, only the second relay 2 is triggered. The output of the driver 3 is connected to the second output terminal and the first output terminal renders-, with the connected minus power bus. As a consequence, the pulse at the first and second output terminals

0 will have the opposite polarity (Fig. 2c and d, on the right). The formation of a trapezoidal impulse itself occurs in this way.

Switching resistor 1 parallel to the output of the former 3 ensures, at the moment of closing, the corresponding contacts of the first 1 and second. 2 relays pass through them a small current, sufficient to prevent the oxide film. The pulse shape at the repeater output for electroplate systems is shown in FIG. 2d

Thus, in the proposed retranslator for electro-hourly

5, the contact of the first 1 and second 2 relays is practically eliminated, since the closure and opening of the contacts occurs in a de-energized state, or when a small (normalized depending on the type of relay) current flows through them, the value of which is always significantly less than the output operating current of the retransmit torus for electro-clock systems. This leads to an increase in the reliability of the repeater for electro-clock systems. In addition, the ability to form fronts reduces the impact of

0 for the duration of the fronts of the magnitude of the load, determined by the number of secondary clocks connected to the output of the transponder for electric watch systems.

1-5

Claims (1)

A RELAY FOR ELECTRIC HOUR SYSTEMS, comprising a first diode, the cathode of which is connected to the windings of the first relay and the first RC circuit connected in parallel, a second diode, the anode of which is connected to the windings of the second relay and the second RC circuit connected in parallel, movable and closed contacts of the first contact group of the first relays that are connected respectively to the first output terminal of the device and with the closed contact of the first contact group of the second relay, characterized in that, in order to increase the reliability of the relay by means of voltage of the switched relays, a pulse former, owls, a bridge rectifier, additional contact groups of the first and second relays are introduced into it, while the inputs of the bridge rectifier * are connected to the anode of the first diode and to the corresponding output of the winding of the first relay, the first output of the bridge rectifier is connected to the cathode of the second diode and to the open contact of the additional contact group of the second relay, and the second output of the bridge rectifier is combined with the corresponding output of the winding of the second relay, with closed by the contacts of the first and additional contact groups of the second relay and with the negative power bus of the pulse shaper, the movable contact of the additional contact group of the second relay is connected to the input of the pulse shaper, the output of which is connected to the open contact of the first contact group of the second relay and to the resistor connected to the positive power bus of the shaper pulses, and the movable contact of the first contact group, the second relay is connected to the open contact of the first contact group, and ^one additional closed contact Yelnia contact group, the first relay, the movable contact of which is the output bus of the device. SU ,, 1080114