ATE84907T1 - CIRCUIT ARRANGEMENT FOR REDUCING THE SWITCHING POWER OCCURRING WHEN CLOSING AND OPENING OF A CAPACITIVE AND OHMIC LOADED SWITCH. - Google Patents

CIRCUIT ARRANGEMENT FOR REDUCING THE SWITCHING POWER OCCURRING WHEN CLOSING AND OPENING OF A CAPACITIVE AND OHMIC LOADED SWITCH.

Info

Publication number
ATE84907T1
ATE84907T1 AT87103850T AT87103850T ATE84907T1 AT E84907 T1 ATE84907 T1 AT E84907T1 AT 87103850 T AT87103850 T AT 87103850T AT 87103850 T AT87103850 T AT 87103850T AT E84907 T1 ATE84907 T1 AT E84907T1
Authority
AT
Austria
Prior art keywords
switching
opening
path
relay
closing
Prior art date
Application number
AT87103850T
Other languages
German (de)
Inventor
Horst Dipl-Ing Mueller
Heinz Ing Richter
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE84907T1 publication Critical patent/ATE84907T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/541—Contacts shunted by semiconductor devices
    • H01H9/542—Contacts shunted by static switch means

Landscapes

  • Electronic Switches (AREA)
  • Protection Of Static Devices (AREA)
  • Dc-Dc Converters (AREA)
  • Keying Circuit Devices (AREA)

Abstract

The switching arrangement contains a changeover switch (1b) in the form of a contact set of a relay (15). The switching power of the first switching path a-b is to be reduced since a capacitor (2) can discharge through it. In the event of opening of the second switching path b-c, the operating path for normal operation, a power field- effect transistor (8) takes over a part of the capacitor charge, so that only a relatively small current flows through it after the dead time of the relay (15) and the closing of the first switching path (a- b). In the event of a later opening of the first switching path (a-b), the power field-effect transistor (8) starts to conduct again and holds the voltage supplying the capacitor (2) at a low level during the dead time of the relay (15), so that the first switching path (a- b) is loaded only with a limited switching voltage. This switching arrangement is suitable for the protection of phantom-circuit locking switches in the case of interaction of carrier-frequency channel converters and primary digital-signal multiplexer equipment. <IMAGE>
AT87103850T 1986-03-20 1987-03-17 CIRCUIT ARRANGEMENT FOR REDUCING THE SWITCHING POWER OCCURRING WHEN CLOSING AND OPENING OF A CAPACITIVE AND OHMIC LOADED SWITCH. ATE84907T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3609472 1986-03-20
EP87103850A EP0238042B1 (en) 1986-03-20 1987-03-17 Switching arrangement for reducing the switching power upon closing and opening a switch with a resistive and a capacitive load

Publications (1)

Publication Number Publication Date
ATE84907T1 true ATE84907T1 (en) 1993-02-15

Family

ID=6296890

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87103850T ATE84907T1 (en) 1986-03-20 1987-03-17 CIRCUIT ARRANGEMENT FOR REDUCING THE SWITCHING POWER OCCURRING WHEN CLOSING AND OPENING OF A CAPACITIVE AND OHMIC LOADED SWITCH.

Country Status (5)

Country Link
EP (1) EP0238042B1 (en)
AT (1) ATE84907T1 (en)
DE (1) DE3783629D1 (en)
ES (1) ES2040708T3 (en)
GR (1) GR3007604T3 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138473B (en) * 1960-08-12 1962-10-25 Siemens Ag Arrangement for the non-sparking switching of relay contacts
US4420784A (en) * 1981-12-04 1983-12-13 Eaton Corporation Hybrid D.C. power controller
US4438472A (en) * 1982-08-09 1984-03-20 Ibm Corporation Active arc suppression for switching of direct current circuits

Also Published As

Publication number Publication date
EP0238042B1 (en) 1993-01-20
EP0238042A2 (en) 1987-09-23
EP0238042A3 (en) 1990-02-28
GR3007604T3 (en) 1993-08-31
DE3783629D1 (en) 1993-03-04
ES2040708T3 (en) 1993-11-01

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Legal Events

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