GB1475944A - Electronic programmers - Google Patents

Electronic programmers

Info

Publication number
GB1475944A
GB1475944A GB2014275A GB2014275A GB1475944A GB 1475944 A GB1475944 A GB 1475944A GB 2014275 A GB2014275 A GB 2014275A GB 2014275 A GB2014275 A GB 2014275A GB 1475944 A GB1475944 A GB 1475944A
Authority
GB
United Kingdom
Prior art keywords
capacitor
switch
shift register
switches
closed
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
Application number
GB2014275A
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.)
Siemens Building Technologies AG
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
LGZ Landis and Gyr Zug 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 Landis and Gyr AG, LGZ Landis and Gyr Zug AG filed Critical Landis and Gyr AG
Publication of GB1475944A publication Critical patent/GB1475944A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/07—Programme control other than numerical control, i.e. in sequence controllers or logic controllers where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electronic Switches (AREA)
  • Power Conversion In General (AREA)

Abstract

1475944 Electronic sequential timing circuits LGZ LANDIS & GYR ZUG AG 13 May 1975 [17 May 1974] 20142/75 Heading H3T An electronic programmer comprises a plurality of timing circuits comprising a common capacitor 6 and at least two resistors 1, 2 switched in sequentially by means of a shift register 10 and a threshold switch, in the form of a logic gate, 5, bridging capacitor 6, which is arranged to pulse the clock input of the shift register 10 when a predetermined capacitor voltage is reached, the individual resistors 1, 2 being switched in sequentially by means of switches 3, 4, controlled in the various states of the shift register 10 by means of logic gates 18 ... 22. A further switch 8, controlled by the threshold switch 5 is provided for discharging the capacitor 6. The circuit may be built in integrated COS/MOS form, switches 3, 4, 8 being transmission gates. The switch 3 is initially closed so that capacitor 6 is charged from supply U B via resistor 1 until the threshold switch 5 is triggered when the shift register 10 is set to its next state. Switch 8 is also closed, discharging capacitor 6. In the second state, switches 3 and 4 are both closed so that capacitor 6 is charged via resistors 1 and 2 in parallel. The output leads 15, 16, 17 may control relays or triacs.
GB2014275A 1974-05-17 1975-05-13 Electronic programmers Expired GB1475944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH676674A CH571742A5 (en) 1974-05-17 1974-05-17

Publications (1)

Publication Number Publication Date
GB1475944A true GB1475944A (en) 1977-06-10

Family

ID=4314704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2014275A Expired GB1475944A (en) 1974-05-17 1975-05-13 Electronic programmers

Country Status (3)

Country Link
CH (1) CH571742A5 (en)
DE (1) DE2428015A1 (en)
GB (1) GB1475944A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618028C2 (en) * 1976-04-24 1983-12-15 Robert Bosch Gmbh, 7000 Stuttgart Universally applicable timing element that can be implemented in integrated circuit technology

Also Published As

Publication number Publication date
CH571742A5 (en) 1976-01-15
DE2428015A1 (en) 1975-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee