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EP1186983A3 - Switching type bandgap controller - Google Patents

Switching type bandgap controller Download PDF

Info

Publication number
EP1186983A3
EP1186983A3 EP01120556A EP01120556A EP1186983A3 EP 1186983 A3 EP1186983 A3 EP 1186983A3 EP 01120556 A EP01120556 A EP 01120556A EP 01120556 A EP01120556 A EP 01120556A EP 1186983 A3 EP1186983 A3 EP 1186983A3
Authority
EP
European Patent Office
Prior art keywords
output
controller
voltage
switching type
circuit
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Withdrawn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
EP01120556A
Other languages
German (de)
French (fr)
Other versions
EP1186983A2 (en
Inventor
Franco Cocetta
Giorgio Rossi
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.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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
Priority claimed from EP00830594A external-priority patent/EP1184954A1/en
Application filed by STMicroelectronics SRL filed Critical STMicroelectronics SRL
Priority to EP01120556A priority Critical patent/EP1186983A3/en
Publication of EP1186983A2 publication Critical patent/EP1186983A2/en
Publication of EP1186983A3 publication Critical patent/EP1186983A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

The invention relates to an integrated self-powered and switching electronic circuit (10) for regulating a stable reference voltage (Vr), comprising a band-gap voltage generator to produce said stable reference voltage (Vr) for a system circuit block (2, 12) that is generally supplied by the output of the band-gap generator through a comparator and an error amplifier. A regulating loop is provided between the output of the system block (12) and the input of the voltage generator circuit (10) to supply a voltage signal (SENSE) produced by the output of the system block. Advantageously, the voltage generator circuit incorporates both the comparator and the error amplifier.
EP01120556A 2000-08-31 2001-08-29 Switching type bandgap controller Withdrawn EP1186983A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01120556A EP1186983A3 (en) 2000-08-31 2001-08-29 Switching type bandgap controller

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00830594A EP1184954A1 (en) 2000-08-31 2000-08-31 Integrated and self-supplied voltage regulator and related regulation method
EP00830594 2000-08-31
EP01120556A EP1186983A3 (en) 2000-08-31 2001-08-29 Switching type bandgap controller

Publications (2)

Publication Number Publication Date
EP1186983A2 EP1186983A2 (en) 2002-03-13
EP1186983A3 true EP1186983A3 (en) 2003-11-12

Family

ID=26074164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01120556A Withdrawn EP1186983A3 (en) 2000-08-31 2001-08-29 Switching type bandgap controller

Country Status (1)

Country Link
EP (1) EP1186983A3 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110677A (en) * 1977-02-25 1978-08-29 Beckman Instruments, Inc. Operational amplifier with positive and negative feedback paths for supplying constant current to a bandgap voltage reference circuit
EP0656574A1 (en) * 1993-12-02 1995-06-07 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno - CoRiMMe Voltage reference with linear, negative, temperature coefficient
EP0713166A1 (en) * 1994-11-15 1996-05-22 STMicroelectronics Limited A voltage reference circuit
US5770940A (en) * 1995-08-09 1998-06-23 Switch Power, Inc. Switching regulator
EP0971280A1 (en) * 1998-07-07 2000-01-12 Motorola Semiconducteurs S.A. Voltage regulator and method of regulating voltage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110677A (en) * 1977-02-25 1978-08-29 Beckman Instruments, Inc. Operational amplifier with positive and negative feedback paths for supplying constant current to a bandgap voltage reference circuit
EP0656574A1 (en) * 1993-12-02 1995-06-07 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno - CoRiMMe Voltage reference with linear, negative, temperature coefficient
EP0713166A1 (en) * 1994-11-15 1996-05-22 STMicroelectronics Limited A voltage reference circuit
US5770940A (en) * 1995-08-09 1998-06-23 Switch Power, Inc. Switching regulator
EP0971280A1 (en) * 1998-07-07 2000-01-12 Motorola Semiconducteurs S.A. Voltage regulator and method of regulating voltage

Also Published As

Publication number Publication date
EP1186983A2 (en) 2002-03-13

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