Nothing Special   »   [go: up one dir, main page]

Blakiewicz, 2011 - Google Patents

Output-capacitorless low-dropout regulator using a cascoded flipped voltage follower

Blakiewicz, 2011

Document ID
3957593719230877332
Author
Blakiewicz G
Publication year
Publication venue
IET circuits, devices & systems

External Links

Snippet

An improved flipped voltage follower (FVF) and its application to a low-dropout (LDO) voltage regulator are presented. The proposed FVF improves most weaknesses of the classical one, namely its poor time response to the output current change from low to high …
Continue reading at digital-library.theiet.org (other versions)

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45Differential amplifiers
    • H03F3/45071Differential amplifiers with semiconductor devices only
    • H03F3/45076Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08Modification of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00Non-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
    • G05F3/02Regulating voltage or current
    • G05F3/08Regulating voltage or current wherein the variable is dc
    • G05F3/10Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26Current mirrors
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic 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
    • G05F1/10Regulating voltage or current
    • G05F1/46Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56Regulating 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
    • G05F1/575Regulating 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 characterised by the feedback circuit

Similar Documents

Publication Publication Date Title
Blakiewicz Output-capacitorless low-dropout regulator using a cascoded flipped voltage follower
US8154263B1 (en) Constant GM circuits and methods for regulating voltage
US9588541B1 (en) Dual loop regulator circuit
US6518737B1 (en) Low dropout voltage regulator with non-miller frequency compensation
US10707773B2 (en) Energy acquisition and power supply system
US8334681B2 (en) Domino voltage regulator (DVR)
KR101939845B1 (en) Voltage regulator
EP2701030B1 (en) Low dropout voltage regulator with a floating voltage reference
CN114375432B (en) Voltage stabilizer, image sensor and method
Ming et al. A fast-transient capacitorless LDO with dual paths active-frequency compensation scheme
CN111522389A (en) Wide-input low-dropout linear voltage stabilizing circuit
CN211878488U (en) Wide-input low-dropout linear voltage stabilizing circuit
CN112947656B (en) Low quiescent current, off-chip capacitor LDO with dynamically optimized power supply rejection ratio
Li et al. A Capacitor-less LDO with Fast transient response using Push-Pull Buffer
CN116185115A (en) LDO composite zero tracking compensation circuit
CN110399003B (en) Relative negative power supply rail and relative positive power supply rail generating circuit
CN108037786A (en) The low-dropout regulator for adjusting voltage is exported for producing
US7276961B2 (en) Constant voltage outputting circuit
EP4194991A1 (en) Transient boost circuit for ldo, chip system and device
CN108445959B (en) Low-dropout linear voltage regulator with selectable tab external capacitance
Yeo et al. A capacitorless low-dropout regulator with enhanced slew rate and 4.5-μ A quiescent current
US9367073B2 (en) Voltage regulator
Ming et al. An NMOS LDO With TM-MOS and Dynamic Clamp Technique Handling Up To Sub-10-$\mu $ s Short-Period Load Transient
Park et al. Design techniques for external capacitor-less LDOs with high PSR over wide frequency range
Abiri et al. A low dropout voltage regulator with enhanced transconductance error amplifier and small output voltage variations