TW201613240A - DCR inductor current-sensing in four-switch buck-boost converters - Google Patents

DCR inductor current-sensing in four-switch buck-boost converters

Info

Publication number
TW201613240A
TW201613240A TW104125360A TW104125360A TW201613240A TW 201613240 A TW201613240 A TW 201613240A TW 104125360 A TW104125360 A TW 104125360A TW 104125360 A TW104125360 A TW 104125360A TW 201613240 A TW201613240 A TW 201613240A
Authority
TW
Taiwan
Prior art keywords
inductor
sensing
switch buck
inductor current
current
Prior art date
Application number
TW104125360A
Other languages
Chinese (zh)
Other versions
TWI591950B (en
Inventor
Xu Zhang
Jian Li
Zhou-Yuan Shi
Yiding Gu
Original Assignee
Linear Techn 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
Priority claimed from US14/660,739 external-priority patent/US20160164411A1/en
Priority claimed from US14/677,794 external-priority patent/US9748843B2/en
Application filed by Linear Techn Inc filed Critical Linear Techn Inc
Publication of TW201613240A publication Critical patent/TW201613240A/en
Application granted granted Critical
Publication of TWI591950B publication Critical patent/TWI591950B/en

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  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Dc-Dc Converters (AREA)

Abstract

An inductor current-sensing circuit for measuring a current in an inductor includes (a) a first RC network coupled between a first terminal of the inductor and a reference voltage source; and (b) a second RC network coupled between a second terminal of the inductor and the reference voltage source. The first RC network and the second RC network each have a time constant substantially equal to the ratio between the inductance and the DC resistance of the inductor. The inductor which current is being measured may be a primary inductor of a four-switch buck boost converter receiving an input voltage and providing an output voltage.
TW104125360A 2014-09-24 2015-08-05 Dcr inductor current-sensing in four-switch buck-boost converters TWI591950B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201462054587P 2014-09-24 2014-09-24
US201462088433P 2014-12-05 2014-12-05
US14/660,739 US20160164411A1 (en) 2014-12-05 2015-03-17 Peak-buck peak-boost current-mode control for switched step-up step-down regulators
US14/677,794 US9748843B2 (en) 2014-09-24 2015-04-02 DCR inductor current-sensing in four-switch buck-boost converters

Publications (2)

Publication Number Publication Date
TW201613240A true TW201613240A (en) 2016-04-01
TWI591950B TWI591950B (en) 2017-07-11

Family

ID=56360984

Family Applications (1)

Application Number Title Priority Date Filing Date
TW104125360A TWI591950B (en) 2014-09-24 2015-08-05 Dcr inductor current-sensing in four-switch buck-boost converters

Country Status (1)

Country Link
TW (1) TWI591950B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110620504A (en) * 2018-06-19 2019-12-27 硅工厂股份有限公司 Power management integrated circuit
TWI778564B (en) * 2021-03-31 2022-09-21 新唐科技股份有限公司 Power converter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10651722B2 (en) * 2018-03-28 2020-05-12 M3 Technology Inc. Advanced constant off-time control for four-switch buck-boost converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110620504A (en) * 2018-06-19 2019-12-27 硅工厂股份有限公司 Power management integrated circuit
TWI778564B (en) * 2021-03-31 2022-09-21 新唐科技股份有限公司 Power converter
US11876443B2 (en) 2021-03-31 2024-01-16 Nuvoton Technology Corporation Hybrid switched-capacitor converter

Also Published As

Publication number Publication date
TWI591950B (en) 2017-07-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees