GB1422482A - Method of and circuit for supplying electric current to a data transmitter - Google Patents

Method of and circuit for supplying electric current to a data transmitter

Info

Publication number
GB1422482A
GB1422482A GB1407174A GB1407174A GB1422482A GB 1422482 A GB1422482 A GB 1422482A GB 1407174 A GB1407174 A GB 1407174A GB 1407174 A GB1407174 A GB 1407174A GB 1422482 A GB1422482 A GB 1422482A
Authority
GB
United Kingdom
Prior art keywords
voltage
transmitter
regulator
data transmitter
terminals
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
GB1407174A
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB1422482A publication Critical patent/GB1422482A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Selective Calling Equipment (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

1422482 Automatic voltage control RHONE-POULENC SA 29 March 1974 [30 March 1973] 14071/74 Heading G3R A D.C. supply is connected through a voltage regulator and a signal receiving device to data transmitter terminals. A voltage sensing terminal on the regulator is connected to a point between the receiving device and one of the transmitter terminals. As shown in Fig. 2, a data transmitter 9, and receiving and user devices 6,7,8 are supplied in series from an A.C. source 1 over a transformer 2, rectifier 3, voltage regulator 4 and current limiter 5. The supply voltage is sensed at a point C downstream of the device 8, so that the voltage actually applied to the transmitter 9 can be regulated to a minimum value in accordance with a reference value which may be set by a Zener diode in the regulator 4. The sensing connection C may be made between devices 7 and 8, so that the regulated voltage at the transmitter 9 will have a current-dependent component. An over-voltage protection device, such as a Zener diode, may be connected across the terminals of the transmitter 9. The current limiter 5 may include thermionic valves or transistors, and the circuit may be supplied directly from a D.C. source.
GB1407174A 1973-03-30 1974-03-29 Method of and circuit for supplying electric current to a data transmitter Expired GB1422482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7311659A FR2334274A5 (en) 1973-03-30 1973-03-30 SAFETY POWER SUPPLY FOR MEASUREMENT TRANSMITTER

Publications (1)

Publication Number Publication Date
GB1422482A true GB1422482A (en) 1976-01-28

Family

ID=9117202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1407174A Expired GB1422482A (en) 1973-03-30 1974-03-29 Method of and circuit for supplying electric current to a data transmitter

Country Status (9)

Country Link
JP (1) JPS49130763A (en)
BE (1) BE813102A (en)
CH (1) CH589957A5 (en)
DE (1) DE2415357C3 (en)
FR (1) FR2334274A5 (en)
GB (1) GB1422482A (en)
IT (1) IT1015877B (en)
LU (1) LU69743A1 (en)
NL (1) NL158950B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2653571B1 (en) * 1989-10-20 1991-12-20 Thomson Csf HIGH PERFORMANCE REGULATION DEVICE FOR STABILIZED POWER SUPPLY.
US6476522B1 (en) * 2000-05-31 2002-11-05 Micro Motion, Inc. Method and apparatus to control power drawn by a measurement device

Also Published As

Publication number Publication date
NL158950B (en) 1978-12-15
FR2334274A5 (en) 1977-07-01
JPS49130763A (en) 1974-12-14
DE2415357B2 (en) 1977-09-08
NL7403945A (en) 1974-10-02
CH589957A5 (en) 1977-07-29
DE2415357C3 (en) 1978-05-11
IT1015877B (en) 1977-05-20
LU69743A1 (en) 1974-10-17
BE813102A (en) 1974-09-30
DE2415357A1 (en) 1974-10-10

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Legal Events

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