EP0384926B1 - Schaltungsanordnung für die Erregung und Entregung eines bistabilen Relais - Google Patents

Schaltungsanordnung für die Erregung und Entregung eines bistabilen Relais Download PDF

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Publication number
EP0384926B1
EP0384926B1 EP19890103561 EP89103561A EP0384926B1 EP 0384926 B1 EP0384926 B1 EP 0384926B1 EP 19890103561 EP19890103561 EP 19890103561 EP 89103561 A EP89103561 A EP 89103561A EP 0384926 B1 EP0384926 B1 EP 0384926B1
Authority
EP
European Patent Office
Prior art keywords
transistor
voltage
relay
excitation
circuit configuration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19890103561
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0384926A1 (de
Inventor
Jürgen Begau
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.)
Legrand GmbH
Original Assignee
Legrand GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand GmbH filed Critical Legrand GmbH
Priority to DE58909010T priority Critical patent/DE58909010D1/de
Publication of EP0384926A1 publication Critical patent/EP0384926A1/de
Application granted granted Critical
Publication of EP0384926B1 publication Critical patent/EP0384926B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/226—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil for bistable relays

Definitions

  • the invention relates to a circuit arrangement for the excitation and de-excitation of a bistable relay, the excitation voltage is higher and the de-excitation voltage is lower than a voltage (H-L) of an available voltage source.
  • Bistable relays are quite advantageous in themselves because of their advantage of low energy consumption in battery-operated devices for switching larger voltages or currents.
  • the invention is based on a state of the art of so-called ironless voltage converters or voltage doubler or multiplier circuits, e.g. according to the article by H. Michl in "Funktechnik 1968" No. 18, page 701.
  • This circuit and circuits similar in the same way are generally relatively complex since they make use of the multiple application of the voltage doubling principle with the aid of series-connected capacitor groups.
  • the present invention is therefore based on the task of converting a relatively low battery voltage into a higher DC voltage by means of a circuit arrangement which requires less expenditure on components and on assembly or adjustment means, but is nevertheless reliable and meets the requirements of Miniaturization corresponds better in terms of space than is the case with the known solutions.
  • the circuit principle according to the invention enables the use of series-produced, miniaturized components by means of optional integration of components or sub-assemblies, such as units for periodic voltage sources, DC voltage sources of various potentials and associated switches of suitable design in input circuits of a control unit for the timing of the switching processes and their use in Connection with modules of the type mentioned at the beginning with a lower supply voltage, but also in connection with relays with the usual response voltages.
  • components or sub-assemblies such as units for periodic voltage sources, DC voltage sources of various potentials and associated switches of suitable design in input circuits of a control unit for the timing of the switching processes and their use in Connection with modules of the type mentioned at the beginning with a lower supply voltage, but also in connection with relays with the usual response voltages.
  • the PNP transistor (1) with its emitter electrode is connected to the pole of the source voltage, e.g. here the positive pole (H) of the voltage source (2), and with its collector electrode (15) connected via the relay (3) to the zero pole (H) of the current source (4).
  • the base electrode (5) of the transistor (1) is connected via the current limiting resistor (6) to the terminal (7), which is optionally connected to the output (9) of the generator (10) for one by means of the switch (8) periodic pulse voltage (alternating H, L) or to the terminal (26) for the zero pole (L) (12), ie here the zero pole (13) of the voltage source (2), or to the terminal (41) for the source pole (here H equals positive pole) can be connected.
  • the node (14) between the collector electrode (15) of the first transistor (1) and the input terminal (16) of the relay (3) is connected via the charging capacitor (17) of the circuit combination (18) via a first current path a rectifier branch (19) with the line (20), the diode (21) and the series resistor (22) with the zero pole (23) of the voltage source (2).
  • the conductivity of the diode (21) is opposite to that of the transistor (1).
  • the charging capacitor (17) is also in the collector electrode circuit (24) of the second transistor (25), and its emitter electrode connection (24) at the zero pole (31).
  • the circuit functions as follows: In the first operating state, the base electrode of the first transistor (1) is supplied with a periodic pulse voltage via the current limiting resistor (6) from the generator (10), which is applied via the emitter-collector path ( 33) controls a current through the relay (3) in such a way that the current does not yet excite the relay into the switched-on state in the case of L pulses.
  • the base electrode (29) of the second transistor (25) is at the zero pole (12) from the terminal (28) and via the limiting resistor (30), and occurs during the transition to the pulse pause, whereby over the limiting resistor (6) on the base electrode (5) of the first transistor, the voltage zero (L) is effective, on the input terminal (16) of the relay (3) a negative induction voltage, which is caused by a current limiting Resistor (22) limited charging current through the diode (21) charges the charging capacitor (17) to a negative voltage (14) to the zero pole (23).
  • the voltage at point (14) exceeds zero, ie the charging voltage of the capacitor (17) - minus the voltage on the battery (2) - the breakdown voltage of the Zener diode (34), conducts this, and the voltage at point (14) is limited to the value: sum of battery voltage + Zener voltage but also stabilized to this value in the event of a drop in battery voltage, so that the energy of the battery (2) is still below a normal level Limit of discharge can be exploited.
  • a positive pulse at the terminal (28) is conducted via the limiting resistor (30) to the base electrode (29) of the second transistor (25) in a second operating state and the charging capacitor (17) is discharged by the transistor current from the relay input (16) via the relay (3), thereby exciting the relay (3) to the on state.
  • the terminal (28) is again connected to the zero pole, whereby the second transistor (25) is blocked, and the terminal (7) of the switch (8) is also connected to the zero pole, whereby the first transistor ( 1) becomes conductive, so that the circuit of the battery (2) via the first transistor (1) and the coil of the relay (3) is closed and an excitation current opposite the relay is de-energized.
  • the changeover switches in the exemplary embodiment of FIG. 1 are combined with a control for the time sequence of the operating states in a semiconductor module (35) which contains the generator (36) for the periodic pulse voltage.
  • This microprocessor has an output (37) for the input signal of the base electrode (5) of the first transistor (1) to be switched and a second output (38) for the input voltage of the base electrode (29) to be switched between the signal L and the signal H. ) of the second transistor (25), and the connections (39) and (40) for the supply voltages H and L.
  • the circuit arrangement according to the invention is further significantly simplified, so that it only has the two transistors (1) and (25), the charging capacitor (17), limiting resistors (6) and (30), and the Zener diode (34) for the relay (3) contains.
  • a microprocessor function comes about in the form of a time sequence with preselected times for the operating states.
  • the remaining functions of the circuit are the same as in the embodiment of FIG. 1 with the proviso that in the embodiment of FIG. 2 the variant of the rectifier branch (19) integrated in the second transistor (25) is required.

Landscapes

  • Relay Circuits (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP19890103561 1987-09-11 1989-03-01 Schaltungsanordnung für die Erregung und Entregung eines bistabilen Relais Expired - Lifetime EP0384926B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE58909010T DE58909010D1 (de) 1989-03-01 1989-03-01 Schaltungsanordnung für die Erregung und Entregung eines bistabilen Relais.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873730517 DE3730517A1 (de) 1987-09-11 1987-09-11 Schaltungsanordnung fuer die erregung und entregung eines bistabilen relais

Publications (2)

Publication Number Publication Date
EP0384926A1 EP0384926A1 (de) 1990-09-05
EP0384926B1 true EP0384926B1 (de) 1995-02-15

Family

ID=6335775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890103561 Expired - Lifetime EP0384926B1 (de) 1987-09-11 1989-03-01 Schaltungsanordnung für die Erregung und Entregung eines bistabilen Relais

Country Status (2)

Country Link
EP (1) EP0384926B1 (enrdf_load_stackoverflow)
DE (1) DE3730517A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU692145B2 (en) * 1993-02-24 1998-06-04 Paralight Limited A support bracket for an electrical unit
DE4325578A1 (de) * 1993-07-30 1995-02-02 Hartmann & Laemmle Elektronisc Schalteinrichtung für einen Elektromagneten
US9305729B2 (en) * 2013-08-21 2016-04-05 Littelfuse, Inc. Capacitive driven normal relay emulator using voltage boost
CN103856098B (zh) * 2014-03-25 2016-01-20 泉州七星电气有限公司 一种线路故障指示器的脉冲式取电装置及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30150E (en) * 1971-08-02 1979-11-13 Ncr Corporation Inductor drive means
DE3139502C2 (de) * 1981-09-29 1987-01-29 Mannesmann AG, 4000 Düsseldorf Schaltung für magnetisch auslösbare Druckelemente, wie z.B. Drucknadeln, Druckhämmer o.dgl., für Drucker, insbesondere für Matrixdrucker
DE3239840C2 (de) * 1982-10-27 1986-11-20 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum Betätigen elektromagnetischer Schaltgeräte
DE3316251A1 (de) * 1983-05-04 1984-11-08 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung zur gleichspannungswandlung
FR2577070B1 (fr) * 1985-02-05 1988-02-05 Vedette Horlogerie Interface pour relais bistable
US4757418A (en) * 1987-01-30 1988-07-12 Ncr Corporation Solenoid driver circuit

Also Published As

Publication number Publication date
DE3730517A1 (de) 1989-03-23
EP0384926A1 (de) 1990-09-05
DE3730517C2 (enrdf_load_stackoverflow) 1993-04-29

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