EP0756222A3 - Clamp circuit for remotely sensed voltage - Google Patents

Clamp circuit for remotely sensed voltage Download PDF

Info

Publication number
EP0756222A3
EP0756222A3 EP96110932A EP96110932A EP0756222A3 EP 0756222 A3 EP0756222 A3 EP 0756222A3 EP 96110932 A EP96110932 A EP 96110932A EP 96110932 A EP96110932 A EP 96110932A EP 0756222 A3 EP0756222 A3 EP 0756222A3
Authority
EP
European Patent Office
Prior art keywords
load
feedback path
clamp circuit
sensed voltage
remotely sensed
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.)
Withdrawn
Application number
EP96110932A
Other languages
German (de)
French (fr)
Other versions
EP0756222A2 (en
Inventor
Ronald Eugene Fernsler
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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 Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Publication of EP0756222A2 publication Critical patent/EP0756222A2/en
Publication of EP0756222A3 publication Critical patent/EP0756222A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G05F1/569—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 for protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Logic Circuits (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

An apparatus provides power to a remote load (RLOAD), such as a plurality of digital integrated circuits. The power is routed to the load through a first plurality of pins of a connector (P1), which is mounted, for example, on a periphery of the apparatus's printed circuit board. A feedback path (FB) is provided from the load to the apparatus in order to monitor a voltage (VLOAD) at the load. The feedback path is routed to the apparatus through a second plurality of pins of the connector. In order to facilitate testing of the apparatus, the output of the apparatus is isolated from the feedback path by a resistance (R2). A switch device (D2) is coupled in parallel with the resistance to prevent the output voltage of the apparatus from exceeding a level which the load can safely tolerate.
EP96110932A 1995-07-25 1996-07-06 Clamp circuit for remotely sensed voltage Withdrawn EP0756222A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50769095A 1995-07-25 1995-07-25
US507690 1995-07-25

Publications (2)

Publication Number Publication Date
EP0756222A2 EP0756222A2 (en) 1997-01-29
EP0756222A3 true EP0756222A3 (en) 1998-01-07

Family

ID=24019727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96110932A Withdrawn EP0756222A3 (en) 1995-07-25 1996-07-06 Clamp circuit for remotely sensed voltage

Country Status (7)

Country Link
EP (1) EP0756222A3 (en)
JP (1) JPH09200027A (en)
KR (1) KR970008873A (en)
CN (1) CN1166639A (en)
BR (1) BR9603137A (en)
SG (1) SG67358A1 (en)
TW (1) TW296506B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803400B1 (en) 1999-12-29 2003-01-10 St Microelectronics Sa REGULATION DEVICE
KR100559141B1 (en) * 2004-01-26 2006-03-10 주식회사 효성 Polyester filament fiber and polyester having high shrinking self-extension and manufacturing therof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098192A (en) * 1961-02-06 1963-07-16 Raytheon Co Protective circuit for direct current voltage regulators
US3532936A (en) * 1969-01-14 1970-10-06 Automatic Elect Lab Protective circuit for direct current voltage regulators
DE3211989A1 (en) * 1982-03-31 1983-10-13 Siemens AG, 1000 Berlin und 8000 München Power supply device
US4779037A (en) * 1987-11-17 1988-10-18 National Semiconductor Corporation Dual input low dropout voltage regulator
JPH01303055A (en) * 1988-05-30 1989-12-06 Omron Tateisi Electron Co Switching power supply with remote sensing terminals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098192A (en) * 1961-02-06 1963-07-16 Raytheon Co Protective circuit for direct current voltage regulators
US3532936A (en) * 1969-01-14 1970-10-06 Automatic Elect Lab Protective circuit for direct current voltage regulators
DE3211989A1 (en) * 1982-03-31 1983-10-13 Siemens AG, 1000 Berlin und 8000 München Power supply device
US4779037A (en) * 1987-11-17 1988-10-18 National Semiconductor Corporation Dual input low dropout voltage regulator
JPH01303055A (en) * 1988-05-30 1989-12-06 Omron Tateisi Electron Co Switching power supply with remote sensing terminals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 099 (E - 0893) 22 February 1990 (1990-02-22) *

Also Published As

Publication number Publication date
KR970008873A (en) 1997-02-24
BR9603137A (en) 1998-05-05
TW296506B (en) 1997-01-21
JPH09200027A (en) 1997-07-31
EP0756222A2 (en) 1997-01-29
SG67358A1 (en) 1999-09-21
CN1166639A (en) 1997-12-03

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