CA2078303A1 - Voltage regulator - Google Patents

Voltage regulator

Info

Publication number
CA2078303A1
CA2078303A1 CA2078303A CA2078303A CA2078303A1 CA 2078303 A1 CA2078303 A1 CA 2078303A1 CA 2078303 A CA2078303 A CA 2078303A CA 2078303 A CA2078303 A CA 2078303A CA 2078303 A1 CA2078303 A1 CA 2078303A1
Authority
CA
Canada
Prior art keywords
voltage
changes
output voltage
current
transistors
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.)
Granted
Application number
CA2078303A
Other languages
French (fr)
Other versions
CA2078303C (en
Inventor
Perry W. Lou
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.)
Brooktree Broadband Holding Inc
Original Assignee
Brooktree Corp
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 Brooktree Corp filed Critical Brooktree Corp
Publication of CA2078303A1 publication Critical patent/CA2078303A1/en
Application granted granted Critical
Publication of CA2078303C publication Critical patent/CA2078303C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
    • 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
    • G05F1/462—Regulating voltage or current wherein the variable actually regulated by the final control device is dc as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
    • G05F1/465—Internal voltage generators for integrated circuits, e.g. step down generators

Abstract

A system for regulating an output voltage to a particular value includes a control transistor which produces an output voltage when energized by an energizing voltage. A
voltage divider formed as by a pair of transistors with a particular ratio of transconductances divides the magnitude of this output voltage by a ratio related to the ratio of the transconductances. The transistors in the voltage divider may be respectively CMOS n- and p- transistors. The divided output voltage is introduced to a comparator (formed as from a pair of transistors) for comparison with a fixed reference voltage obtained as from a resistance ladder energized by the energizing voltage. The comparator introduces voltages to a comparator amplifier in accordance with such comparison. The comparator amplifier may include a transistor which produces changes in a current related to changes in the divided output voltage. The comparator amplifier may further include a current mirror which provides changes in a current related to changes in the current through the amplifier transistor. The current changes in the current mirror cause changes to be produced in a voltage (e.g. error voltage) from the current mirror. These error voltage changes are introduced to the control transistor to regulate the output voltage to the particular value.
CA002078303A 1991-10-07 1992-09-15 Voltage regulator Expired - Lifetime CA2078303C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US772,218 1991-10-07
US07/772,218 US5227714A (en) 1991-10-07 1991-10-07 Voltage regulator

Publications (2)

Publication Number Publication Date
CA2078303A1 true CA2078303A1 (en) 1993-04-08
CA2078303C CA2078303C (en) 1999-12-07

Family

ID=25094331

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002078303A Expired - Lifetime CA2078303C (en) 1991-10-07 1992-09-15 Voltage regulator

Country Status (4)

Country Link
US (1) US5227714A (en)
EP (1) EP0536693A3 (en)
JP (1) JP2974269B2 (en)
CA (1) CA2078303C (en)

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EP0584435B1 (en) * 1992-08-26 1997-01-15 STMicroelectronics S.r.l. High impedance,high ratio current mirror
US5481179A (en) * 1993-10-14 1996-01-02 Micron Technology, Inc. Voltage reference circuit with a common gate output stage
DE69528967D1 (en) * 1995-05-31 2003-01-09 St Microelectronics Srl Transistor current generator stage for integrated analog circuits
US8171203B2 (en) 1995-07-31 2012-05-01 Micron Technology, Inc. Faster write operations to nonvolatile memory using FSInfo sector manipulation
US6978342B1 (en) 1995-07-31 2005-12-20 Lexar Media, Inc. Moving sectors within a block of information in a flash memory mass storage architecture
US6728851B1 (en) 1995-07-31 2004-04-27 Lexar Media, Inc. Increasing the memory performance of flash memory devices by writing sectors simultaneously to multiple flash memory devices
US5845313A (en) 1995-07-31 1998-12-01 Lexar Direct logical block addressing flash memory mass storage architecture
JP2766227B2 (en) * 1995-08-30 1998-06-18 日本電気アイシーマイコンシステム株式会社 Semiconductor storage device
JP3713324B2 (en) * 1996-02-26 2005-11-09 三菱電機株式会社 Current mirror circuit and signal processing circuit
US5892388A (en) * 1996-04-15 1999-04-06 National Semiconductor Corporation Low power bias circuit using FET as a resistor
DE69912756D1 (en) 1999-06-30 2003-12-18 St Microelectronics Srl Voltage regulator for a capacitive load
US7102671B1 (en) 2000-02-08 2006-09-05 Lexar Media, Inc. Enhanced compact flash memory card
US7167944B1 (en) 2000-07-21 2007-01-23 Lexar Media, Inc. Block management for mass storage
US6271652B1 (en) * 2000-09-29 2001-08-07 International Business Machines Corporation Voltage regulator with gain boosting
US6469548B1 (en) * 2001-06-14 2002-10-22 Cypress Semiconductor Corp. Output buffer crossing point compensation
GB0123415D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Method of writing data to non-volatile memory
GB0123417D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Improved data processing
GB0123419D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Data handling system
GB0123416D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Non-volatile memory control
GB0123410D0 (en) 2001-09-28 2001-11-21 Memquest Ltd Memory system for data storage and retrieval
GB0123421D0 (en) * 2001-09-28 2001-11-21 Memquest Ltd Power management system
US6957295B1 (en) 2002-01-18 2005-10-18 Lexar Media, Inc. File management of one-time-programmable nonvolatile memory devices
US6950918B1 (en) 2002-01-18 2005-09-27 Lexar Media, Inc. File management of one-time-programmable nonvolatile memory devices
US7231643B1 (en) 2002-02-22 2007-06-12 Lexar Media, Inc. Image rescue system including direct communication between an application program and a device driver
US6973519B1 (en) 2003-06-03 2005-12-06 Lexar Media, Inc. Card identification compatibility
FR2856856B1 (en) * 2003-06-24 2005-08-26 Atmel Corp LOW VOLTAGE CIRCUIT FOR INTERFACING WITH HIGH VOLTAGE ANALOG SIGNALS
CN1809833B (en) 2003-12-17 2015-08-05 雷克萨媒体公司 For reducing the method for the theft incidence of the electronic equipment for buying
US7725628B1 (en) 2004-04-20 2010-05-25 Lexar Media, Inc. Direct secondary device interface by a host
US7370166B1 (en) 2004-04-30 2008-05-06 Lexar Media, Inc. Secure portable storage device
US7151363B1 (en) * 2004-06-08 2006-12-19 Rf Micro Devices, Inc. High PSRR, fast settle time voltage regulator
US7594063B1 (en) 2004-08-27 2009-09-22 Lexar Media, Inc. Storage capacity status
US7464306B1 (en) 2004-08-27 2008-12-09 Lexar Media, Inc. Status of overall health of nonvolatile memory
US7362084B2 (en) * 2005-03-14 2008-04-22 Silicon Storage Technology, Inc. Fast voltage regulators for charge pumps
DE102005040072B9 (en) * 2005-08-24 2012-02-09 Infineon Technologies Ag Device for polarity-safe supply of an electronic component with an intermediate voltage from a supply voltage
KR100693821B1 (en) 2005-10-31 2007-03-12 삼성전자주식회사 Differential amplifier and active load for the same
JP4953246B2 (en) * 2007-04-27 2012-06-13 セイコーインスツル株式会社 Voltage regulator
US8618786B1 (en) 2009-08-31 2013-12-31 Altera Corporation Self-biased voltage regulation circuitry for memory
JP5864086B2 (en) * 2010-07-28 2016-02-17 ラピスセミコンダクタ株式会社 Differential amplifier circuit
US9520872B2 (en) * 2014-12-23 2016-12-13 Qualcomm Incorporated Linear equalizer with variable gain
US11689201B2 (en) 2021-07-26 2023-06-27 Qualcomm Incorporated Universal serial bus (USB) host data switch with integrated equalizer
CN113311896B (en) * 2021-07-29 2021-12-17 唯捷创芯(天津)电子技术股份有限公司 Self-adaptive overshoot voltage suppression circuit, reference circuit, chip and communication terminal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077212A (en) * 1983-10-04 1985-05-01 Nec Corp Constant voltage regulated power supply circuit
JPH0679262B2 (en) * 1984-02-28 1994-10-05 シャープ株式会社 Reference voltage circuit
JPS60243716A (en) * 1984-10-24 1985-12-03 Hitachi Ltd Voltage regulator
US4788455A (en) * 1985-08-09 1988-11-29 Mitsubishi Denki Kabushiki Kaisha CMOS reference voltage generator employing separate reference circuits for each output transistor
JPH0724004B2 (en) * 1985-09-30 1995-03-15 セイコーエプソン株式会社 Constant voltage circuit
JPH0830742B2 (en) * 1987-01-26 1996-03-27 セイコーエプソン株式会社 Analog electronic clock
US4779037A (en) * 1987-11-17 1988-10-18 National Semiconductor Corporation Dual input low dropout voltage regulator
JP2674669B2 (en) * 1989-08-23 1997-11-12 株式会社東芝 Semiconductor integrated circuit

Also Published As

Publication number Publication date
JP2974269B2 (en) 1999-11-10
CA2078303C (en) 1999-12-07
EP0536693A2 (en) 1993-04-14
JPH05303436A (en) 1993-11-16
EP0536693A3 (en) 1993-10-06
US5227714A (en) 1993-07-13

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