DE1280976B - Circuit arrangement for pulse-controlled counting and / or dialing relay chains in telecommunications, in particular telephone systems - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

HOIh

H04q

German KL: 21 a3 - 22/01

Number: 1280976

File number: P 12 80 976.6-31 (T 31571)

Filing date: July 12, 1966

Opening day: October 24, 1968

The main patent relates to a circuit arrangement for pulse-controlled counting and / or selecting relay chains in telecommunications, especially telephone systems, in which each stage has a single anchor a multi-armature relay with inverse contact actuation and with a common for all armatures, them in their holding or rest position mechanically resetting reset magnets according to the German Patent 1109 217 contains, in which when dropping an anchor in its working position on a Control pulse made its own counter-excitation circuit ineffective and the counter-excitation circuit of the armature downstream in the relay chain is prepared, for which purpose in the counter-excitation circuits a common capacitor is switched on by the time limit of each Control pulse derived actuation pulse throwing the downstream armature into its working position prevented by the control pulse that prepares it, and in which the control pulses both the common reset magnet as well as the one occupancy of the common capacitor the other assignment via a contact actuated by the reset magnet and via the preparatory contact of the armature preceding in the relay chain with the counter-excitation coil of the armature that has just been prepared is connected, so that by each control pulse the at previous control pulse in its working position thrown off armature by the reset magnet in the rest position returned and the prepared armature by the actuation or charging current pulse of the capacitor is released from its rest position and transferred to a medium waiting position which he returned to his working position (dropped out) at the end of the resetting process of the previous anchor transforms.

The invention relates to a further development of the subject matter of the main patent application.

In the case of the relay chain described in an exemplary embodiment (FIG. 2) in the main patent, each resumes its starting position after the end of a counting run, in which no anchor is thrown off, and that by applying a potential to a particular input terminal from each Counting position can be returned to the starting position, lies parallel to the counter excitation coil of the in the order of the first anchor the multiple of the working contacts of all anchor, so that each in the course The armature thrown off during the counting process results in a further counter-excitation and consequently a further fall of the first anchor in its working position.

Circuit arrangement for pulse-controlled
Counting and / or dialing relay chains in telecommunications, in particular telephone systems

Addendum to the patent: 1227 949

Applicant:

Telefunken .

Patentverwertungsgesellschaft mb H.,
7900 Ulm, Elisabethenstr. 3

Named as inventor:

Siegfried Klinger, 7150 Backnang ^f

It is known for relay chains of the type mentioned required a normally open contact of each anchor for the preparation of the in the sequence next anchor to use. The use of another normally open contact for short-circuiting the Counter excitation coil of the first armature can be in

'' in some cases limit the usability of the relay chain because it is insufficient free contacts the anchor for resulting from the application resulting tasks are available. This deficiency is avoided by the invention. There is also the advantage that in addition to the multi-armature relay on other components only a pulse-limiting capacitor and a rectifier are required.

The invention is characterized in that the

The counter-excitation coil of the first armature in the sequence is connected via the rest side of the changeover contact assigned to the reset magnet with the other assignment of the capacitor with such a polarity that the first armature is thrown into its working position by the discharge current of the capacitor flowing after the termination of the first control pulse and closes the contact assigned to it, which prepares the circuit of the subsequent armature.
In the technical embodiment of the invention, the return line of the first counter-excitation coil is together with the return line of the excitation coil of the reset magnet to the counter-terminal of the control pin 628/1189

connected to the pulse source, but the return lines of the other counter excitation coils are connected to the first assignment of the capacitor connected.

The invention is explained using an exemplary embodiment.

Fig. 1 shows the circuit diagram of a twelve-stage Relay chain according to the invention and

F i g. 2 shows the relay diagram of this relay chain, with the effective working and counter-excitation states of the relay coils full, but the false or rest excitations are shown hatched are.

1 ... 12 denotes the counter excitation coils of the individual armatures of a multi-armature latching relay and 13 denotes the excitation coil of the reset magnet common to all individual armatures. A pulse contact i connected to a voltage source is shown as a representative of the source of the control pulses to be counted.

Each time the pulse contact i is closed, the coil 13 is excited via a rectifier 15 and the reset magnet with the response delay peculiar to it; actuated, the changeover contact 131 being turned over. When the pulse contact is closed, the capacitor 14 is first charged via the switch 131, which is still in the rest position, and via the coil 1. The first armature is not actuated but held in its rest position, since the excitation of the coil 1 takes place in the direction that amplifies the flow of force of the permanent magnet of the multi-armature relay. Turning the switch 131 during the first pulse has no effect, since all contacts 101 ... 111 of the individual armatures are open. Subsequent to the end of the control pulse, the reset magnet and thus also the contact 131 return to the rest position, whereby the capacitor 14 can discharge via the coil 1.

The discharge current causes the coil 1 to be excited in the opposite direction to the flow of the permanent magnet of the multi-armature relay, so that the first armature is released into its working position in which it closes its contacts 101 and 102 ... 109. The contact 101 prepares the coil 2 of the second armature for the next counting pulse, and the contacts 102 ... 109, which can be used for control tasks of the counting and / or dialing relay chain, are closed.

The second control pulse in turn causes the excitation of the coil 13 ″ and, as long as the contact 131 is still in the rest position, the charging of the capacitor 14 via the coil 1, through which only an excitation that increases the flux of the permanent magnet occurs Around the contact 131 in its working position, the recirculation of the fallen after the end of the first control pulse to its working position the first armature begins to its rest position. in this case, includes the contact 131 before the located in recirculation first armature its contacts 101 and 102 ... 109 again In this overlapping time, the capacitor 14 can therefore discharge via the contacts 131, 101 and via the coil 2 of the second armature, which drops out of its rest position and initially slides into a mean waiting position in which its contact 201 and the control contacts 202 ... 209. As a result, coil 3 is switched on in preparation Any residual charge of the capacitor 14 that is still present, however, is not able to actuate the connected third armature. ,

The fully pulling reset magnet opens the contacts 101 and 102 ... 109 and returns to its rest position even after the pulse contact ζ is opened. Since the capacitor 14 has meanwhile been completely discharged, the first armature can not respond when the contact 131 returns to its rest position. The second armature, which was transferred to its middle waiting position during the second control pulse, now slides into its actual working position, in which the reset device actuated by the third control pulse can detect and return the second armature after the capacitor 14 was charged and then discharged via the coil 3, who operated the third anchor.

In this way, the armatures are actuated one after the other by the control pulses that arrive one after the other and reset by the following pulse until the twelfth armature of the multi-armature relay drops out due to the twelfth control pulse, which does not switch on the coil of a subsequent armature with any contact assigned to it. The twelfth armature is reset by the control pulse following the twelfth control pulse. The capacitor 14 is then discharged when the contact 131 returns to its rest position via the sink 1, so that the counting process automatically starts again in the first stage after it has passed through the relay chain.

The relay chain can be returned to the starting position from any counting position by briefly pressing the To key. The reset magnet 13 is actuated without charging the capacitor 14 because the rectifier 15 connected upstream of it is acted upon in the reverse direction,

Claims (2)

Patent claims: 1.Circuit arrangement for pulse-controlled counting and / or dialing relay chains in telecommunications, in particular telephone systems in which each stage is a single armature of a multi-armature relay with inverse contact actuation and with one anchor common to all, them into theirs Holding or rest position mechanically resetting reset magnets according to the German patent specification 1109217 contains, in which when dropping an anchor in its working position a control pulse made the counter excitation circuit ineffective and the counter excitation circuit of the armature downstream in the relay chain is prepared, for which the Counter-excitation circuits a common capacitor is switched on, which is timed by Limitation of the actuation impulse derived from each control impulse, the dropping of the downstream one Ankers in his working position prevented by the preparatory control pulse, and in which the control pulses both the common reset magnet and the one Occupancy of the common capacitor are supplied, the other occupancy over a contact actuated by the reset magnet and via the preparatory contact of the previous armature in the relay chain is connected to the counter excitation coil of the armature just prepared, so that thrucch each control impulse that thrown into its working position with the previous control impulse Armature returned to the rest position by the reset magnet and the prepared armature released from its rest position by the actuation or charging current pulse of the capacitor and in a mean waiting position is transferred, from which he is at the end of the reset process of the previous anchor goes into its working position (dropped), according to patent 1227 949, characterized in that the counter-excitation coil (1) of the first armature in the sequence over the rest side of the reset magnet (13) assigned changeover contact (131) with the other assignment of the capacitor (14) is connected with such a polarity that the first armature by the after Termination of the first control pulse via the rest side of the reset magnet assigned Contact (131) flowing discharge current of the capacitor (14) is thrown into its working position and the contact (101) which is assigned to it (1) and prepares the circuit of the subsequent armature (2) closes. 2. Circuit arrangement according to claim 1, characterized in that the return lines all coils (2 ... 12) following the coil (1) of the first armature in the sequence with the first assignment of the capacitor (14) are connected. 1 sheet of drawings 809 628/1189 10.68 © Bundesdruckerei Berlin