US2503011A - Rectifier arrangement for switching purposes - Google Patents

Rectifier arrangement for switching purposes Download PDF

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Publication number
US2503011A
US2503011A US535295A US53529544A US2503011A US 2503011 A US2503011 A US 2503011A US 535295 A US535295 A US 535295A US 53529544 A US53529544 A US 53529544A US 2503011 A US2503011 A US 2503011A
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United States
Prior art keywords
current
relay
rectifier
elements
contact
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Expired - Lifetime
Application number
US535295A
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English (en)
Inventor
Tschumi Otto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autophon AG
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Autophon AG
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Filing date
Publication date
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Application granted granted Critical
Publication of US2503011A publication Critical patent/US2503011A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Definitions

  • This invention relates to rectifier arrangements for switching purposes.
  • Rectifier arrangements for switching purposes which can be connected with current consuming elements quite independent of the kind and direction of current (socalled single-phase Gratz-full path-rectifier arrangements) are well-known.
  • single-phase Gratz-full path-rectifier arrangements are well-known.
  • the rectifier arrangement according to the invention is characterised in that, besides the means serving exclusively for rectifying, it cmprises current consuming elements independent of the kind and direction of current and others which are dependent on the kind and direction of current.
  • Fig. l the diagram of an embodiment of the device according to the invention and in Fig. 2 the diagram of an example of the use of this device.
  • Fig. 1 the terminals are designated by the reference characters I and 2. Between these terminals is connected a Gratz full path-rectifier arrangement with rectifier elements a, b, c, d arranged in a square, opposite corners of the square being connected with the terminals I and 2.
  • a current consuming element which is independent of the kind and direction of current is connected across the corners of the square other than those with which the terminals I and 2 are connected.
  • the current consuming element II is connected in series with the rectifier element a and parallel to the rectifier element 0, while the current consuming element L is in series with the rectifier element b and parallel to the rectifier element d.
  • the two current consuming elements may, e. g., be constituted by a relay winding (II) and a visual signal in the form of an electric lamp (L).
  • the manner of operation of the arrangement according to the invention is that, in the case of a direct current with the positive pole l and the negative pole 2, a path of direct current is formed over +l-aI-cZ-2 and a parallel path over +laII2-- Upon reversal of the poles, the two following parallel and +2Lb-l- The resistance of one of the current consuming elements being always greater than that of the rectifier element connected in parallel thereto, the following circuits occur for the two service conditions with regard to the elements II and L: If terminal I is positive: +-la-II2; if terminal 2 is positive: +2L-b-l-.
  • the current consuming element I receives the whole current, while the two others absorb only half a period, which fact in the example shown, would result only in a flashing of the lamp L at half luminous intensity.
  • Fig. 2 of the device according to the invention is in a subscribers device for selectively loud or faintly audible traffic, the change of the speaking direction in the case of loud trafiie being manually effected.
  • EW is a transducer which can be switched so as to Work as a receiver or as a transmitter.
  • This transducer is connected with the transformer UE through an amplifier V having an input transformer E and output transformer A and a circuit closer 61 for connecting the amplifier with a source of alternating current.
  • the amplifier V can be connected to the transducer EW in both directions by the relay contacts ur and in.
  • the center point of the winding of the transformer UE on the line side is connected with one free end (terminal a) of the winding through the telephone receiver T and the contact TK1 while bridging-over one half of the winding.
  • the contacts ES and e are bridged-over by the condenser CI, while over the condenser CII and the visual signal TZ, the middle of the impedance coil Dr is directly connected with the impulse contact 2'.
  • the arrangement has here, too, a Gratz-fulL- path-rectifier arrangement comprising four rectifier elements connected to one another in a known manner.
  • a relay E As a current consuming element which is independent of the kind and direction of current, a relay E is provided, the center point of which is connected with the off-normal contact is of the calling dial NS.
  • the elements dependent on the kind and direction of current are the relay U, the visual signal SZ and the resistance We; U and SZ, on the one side, and We, on the other side, being connected in parallel to difierently directed rectifier elements.
  • the relay U can be disconnected by the switch hook TK2 and the resistance W3 by the switch hook TKs.
  • the contacts e1 and e2 are contacts of the relay E and are closed when the relay is energized.
  • the contacts ur and uz are contacts of the relay U.
  • the switches TKI, TKz and TKs are hook switches of the telephone receiver T. I
  • two current sources not shown connected in series are in relation with the terminals 0, and b. These two sources consist of an alternating current source and a direct current source whose negative pole is connected to the terminals.
  • a direct current path is not formed initially, but an alternating current circuit is established from the grounded alternating current source over the impedance coil Dr and from here, on the one side, over CI and the device according to the invention and, on the other side, over the condenser CII, the visual signal TZ and then, together, over the impulse contact 2' to ground.
  • the alternating current has the effect that the relay E, being independent of the kind and direction of current, is energized.
  • the relay U and the visual signals S2 and 'IZ respond, while a polarised direct current flows through the resistance W3.
  • the contacts 61 and 22 are closed, so that the amplifier V is switched-in and a direct current path is provided over impedance coil Drcontacts EScontact e2the device according to the invention-impulse contact 2' and from here to ground. If the alternating current source is now disconnected, the relay E being an element independent of the kind and direction of current relay U and the visual signal SZ remain in their I former operating conditions; resistance W3 carries no current and the visual signal forming an electric lamp TZ is extinguished.
  • the action of the relay U causes the operation of the relay contacts w and d2, whereby the subscribers station is changed-over from the represented operating condition for speaking to that for listening.
  • the poles of the direct current source are interchanged, i. e., in place of the positive pole which has been grounded till now, the negative pole is connected with ground and the positive one with the terminals a, b.
  • relay E remains in its operating condition, while relay U drops and the electric signal lamp SZ is extinguished.
  • the position of the switches U1 and us is again changed, the speaking direction altered and the illustrated subscribers station again brought into the operating condition for speaking. It is thus possible in the arrangement shown to alter by a simple pole-changing the speaking direction and to control a visual signal, while, in spite of this, the rectifiers remain constantly switched-in.
  • the switch hooks TKi, TK2, TKz are operated. Closing switch hook TK2 results in a reduction of current, while on opening the other two switch hooks TK2 and TK3 the relay U and the resistance W3 are finally disconnected.
  • This reduction of current means are operated in the main station, allowing a weaker alternating current to be superimposed on the direct current.
  • the visual signal TZ comes into action and informs the other station that the subscriber uses the receiver. Since relay U is definitely disconnected, the speaking direction can no longer be changed, and the transducer EW remains constantly connected as transmitter.
  • a change in the direction of current is, therefore, quite immaterial for the subscriber using the receiver but has only an influence upon the device of that subscriber who desires to have a loud conversation.
  • the calling station operates the contact ES.
  • relay E drops and opens the contacts 61, 62, contact e1 thereby disconnecting the rectifier, and contact as finally interrupting the direct current path.
  • the switching-over of the speaking direction is locked for the subscriber desiring a faintly audible traffic, while for the subscriber wishing to use the loud speaker, it remains quite intact. Besides this, the same device lets the subscriber know by a visual signal that the faintly audible traific is in use.
  • a switching and signal device comprising a full wave rectifier comprising four rectifier elements connected in a square with opposite rectifier elements reversed in direction, means for connecting one pair of opposite corners of said square with a line carrying signal current, a relay connected across the other pair-of opposite corners of the square and responsive to line current in both directions, a second relay connected in parallel with one of said rectifier elements and fully responsive to line current in one direction and a signal device connected in parallel with an adjacent rectifier element and fully responsive to line current in the opposite direction.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Mobile Radio Communication Systems (AREA)
US535295A 1942-12-04 1944-05-12 Rectifier arrangement for switching purposes Expired - Lifetime US2503011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH608856X 1942-12-04

Publications (1)

Publication Number Publication Date
US2503011A true US2503011A (en) 1950-04-04

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ID=4523258

Family Applications (1)

Application Number Title Priority Date Filing Date
US535295A Expired - Lifetime US2503011A (en) 1942-12-04 1944-05-12 Rectifier arrangement for switching purposes

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US (1) US2503011A (de)
CH (1) CH254092A (de)
GB (1) GB608856A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321755A (en) * 1963-06-14 1967-05-23 Triplite Ltd Stop means for textile machines
US3343158A (en) * 1964-03-04 1967-09-19 Stop Motion Devices Corp Electronic control for fault detection and stop-motion system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877402A (en) * 1955-07-19 1959-03-10 Leece Neville Co Alternator-rectifier electrical generating system
US3026465A (en) * 1955-07-19 1962-03-20 Leece Neville Co Alternator-rectifier electrical system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321755A (en) * 1963-06-14 1967-05-23 Triplite Ltd Stop means for textile machines
US3343158A (en) * 1964-03-04 1967-09-19 Stop Motion Devices Corp Electronic control for fault detection and stop-motion system

Also Published As

Publication number Publication date
CH254092A (de) 1948-04-15
GB608856A (en) 1948-09-22

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