GB2623702A - Psuedo-bypass mode for power converters - Google Patents

Psuedo-bypass mode for power converters Download PDF

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Publication number
GB2623702A
GB2623702A GB2401539.8A GB202401539A GB2623702A GB 2623702 A GB2623702 A GB 2623702A GB 202401539 A GB202401539 A GB 202401539A GB 2623702 A GB2623702 A GB 2623702A
Authority
GB
United Kingdom
Prior art keywords
current
output voltage
input voltage
voltage
maximum current
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.)
Pending
Application number
GB2401539.8A
Other versions
GB202401539D0 (en
Inventor
Akram Hasnain
G Mckay Graeme
W Lawrence Jason
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.)
Cirrus Logic International Semiconductor Ltd
Original Assignee
Cirrus Logic International Semiconductor Ltd
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 US17/550,492 external-priority patent/US11843317B2/en
Application filed by Cirrus Logic International Semiconductor Ltd filed Critical Cirrus Logic International Semiconductor Ltd
Publication of GB202401539D0 publication Critical patent/GB202401539D0/en
Publication of GB2623702A publication Critical patent/GB2623702A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
    • H02M1/0022—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
    • G06F1/305—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations in the event of power-supply fluctuations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion 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
    • H02M3/145—Conversion 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
    • H02M3/155—Conversion 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
    • H02M3/156—Conversion 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
    • H02M3/1566—Conversion 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 with means for compensating against rapid load changes, e.g. with auxiliary current source, with dual mode control or with inductance variation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion 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
    • H02M3/145—Conversion 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
    • H02M3/155—Conversion 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
    • H02M3/156—Conversion 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
    • H02M3/158—Conversion 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 including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—Conversion 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 including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A system may include a boost converter configured to receive an input voltage and boost the input voltage to an output voltage and control circuitry configured to enforce a maximum current limit to limit a current drawn by the boost converter and in response to the output voltage decreasing below the input voltage, dynamically increase the current above the maximum current limit to cause the output voltage to be approximately equal to the input voltage.

Claims (18)

WHAT IS CLAIMED IS:
1. A system comprising: a boost converter configured to receive an input voltage and boost the input voltage to an output voltage; and control circuitry configured to: enforce a maximum current limit to limit a current drawn by the boost converter; and in response to the output voltage decreasing below the input voltage, dynamically increase the current above the maximum current limit to cause the output voltage to be approximately equal to the input voltage.
2. The system of Claim 1, wherein the maximum current limit is based on a determination of a maximum current level that ensures protection of components of the boost converter or components electrically coupled to the boost converter.
3. The system of Claim 1 or 2, wherein the control circuitry implements a feedback loop that controls the current to regulate the output voltage based on the output voltage and the input voltage.
4. The system of any of Claims 1-3, wherein the control circuitry is further configured to: continuously increase the current when the output voltage is less than the input voltage and the current is greater than the maximum current limit; and continuously decrease the current when the output voltage is greater than the input voltage and the current is greater than the maximum current limit.
5. The system of Claim 4, wherein: when the output voltage is less than the input voltage and the current is greater than the maximum current limit, a rate of increase of the current is nonlinear; and when the output voltage is greater than the input voltage and the current is greater than the maximum current limit, a rate of decrease of the current is nonlinear.
6. The system of Claim 5, wherein: the rate of increase is a function of an amount of time since the control circuitry entered an attack state in which the output voltage is less than the input voltage and the current is greater than the maximum current limit; and the rate of decrease is a function of an amount of time since the control circuitry entered a release state in which the output voltage is greater than the input voltage and the current is greater than the maximum current limit.
7. The system of any of Claims 4-6, wherein the control circuitry is further configured to continuously increase the current when the output voltage is greater than the input voltage and the output voltage is less than a threshold voltage.
8. The system of any of Claims 4-7, wherein the control circuitry is further configured to continuously decrease the current when the output voltage is greater than the threshold voltage and the current is greater than the maximum current limit, wherein a second rate of decrease occurring when the output voltage is greater than the threshold voltage and the current is greater than the maximum current limit is different than the rate of decrease when the output voltage is greater than the input voltage and the current is lesser than the maximum current limit.
9. The system of Claim 8, further wherein a second rate of decrease occurring when the output voltage is greater than the threshold voltage and the current is greater than the maximum current limit is less than the rate of decrease when the output voltage is greater than the input voltage and the current is lesser than the maximum current limit. 15
10. A method comprising: enforcing a maximum current limit to limit a current drawn by a boost converter configured to receive an input voltage and boost the input voltage to an output voltage; and in response to the output voltage decreasing below the input voltage, dynamically increasing the current above the maximum current limit to cause the output voltage to be approximately equal to the input voltage.
11. The method of Claim 10, wherein the maximum current limit is based on a determination of a maximum current level that ensures protection of components of the boost converter or components electrically coupled to the boost converter.
12. The method of Claim 10 or 11 , further comprising implementing a feedback loop that controls the current to regulate the output voltage based on the output voltage and the input voltage.
13. The method of any of Claims 10-12, further comprising: continuously increasing the current when the output voltage is less than the input voltage and the current is greater than the maximum current limit; and continuously decreasing the current when the output voltage is greater than the input voltage and the current is greater than the maximum current limit.
14. The method of Claim 13, wherein: when the output voltage is less than the input voltage and the current is greater than the maximum current limit, a rate of increase of the current is nonlinear; and when the output voltage is greater than the input voltage and the current is greater than the maximum current limit, a rate of decrease of the current is nonlinear. 16
15. The method of Claim 14, wherein: the rate of increase is a function of an amount of time since the control circuitry entered an attack state in which the output voltage is less than the input voltage and the current is greater than the maximum current limit; and the rate of decrease is a function of an amount of time since the control circuitry entered a release state in which the output voltage is greater than the input voltage and the current is greater than the maximum current limit.
16. The method of any of Claims 13-15, further comprising continuously increasing the current when the output voltage is greater than the input voltage and the output voltage is less than a threshold voltage.
17. The method of any of Claims 13-16, further comprising continuously decreasing the current when the output voltage is greater than the threshold voltage and the current is greater than the maximum current limit, wherein a second rate of decrease occurring when the output voltage is greater than the threshold voltage and the current is greater than the maximum current limit is different than the rate of decrease when the output voltage is greater than the input voltage and the current is lesser than the maximum current limit.
18. The method of Claim 17, further wherein a second rate of decrease occurring when the output voltage is greater than the threshold voltage and the current is greater than the maximum current limit is less than the rate of decrease when the output voltage is greater than the input voltage and the current is lesser than the maximum current limit.
GB2401539.8A 2021-08-25 2022-07-21 Psuedo-bypass mode for power converters Pending GB2623702A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202163236739P 2021-08-25 2021-08-25
US17/550,492 US11843317B2 (en) 2021-08-25 2021-12-14 Pseudo-bypass mode for power converters
PCT/US2022/037855 WO2023027837A1 (en) 2021-08-25 2022-07-21 Pseudo-bypass mode for power converters

Publications (2)

Publication Number Publication Date
GB202401539D0 GB202401539D0 (en) 2024-03-20
GB2623702A true GB2623702A (en) 2024-04-24

Family

ID=82850540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2401539.8A Pending GB2623702A (en) 2021-08-25 2022-07-21 Psuedo-bypass mode for power converters

Country Status (3)

Country Link
KR (1) KR20240047422A (en)
GB (1) GB2623702A (en)
WO (1) WO2023027837A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110285375A1 (en) * 2010-05-21 2011-11-24 Gerald Deboy Maximum Power Point Tracker Bypass
US20160352225A1 (en) * 2015-05-25 2016-12-01 Apple Inc. Dynamic integration based current limiting for power converters
US9768689B1 (en) * 2013-07-26 2017-09-19 Cirrus Logic, Inc. Controller for imposing current limits on a boost converter for managing thermal loads
US20200235712A1 (en) * 2019-01-18 2020-07-23 Cirrus Logic International Semiconductor Ltd. Signal tracking-based supply voltage generation with over-boosted voltage
US20200388118A1 (en) * 2019-06-10 2020-12-10 Logitech Europe S.A. Doorbell system with energy storage device
CN112953242A (en) * 2021-03-25 2021-06-11 深圳南云微电子有限公司 Instantaneous overpower control method and circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110285375A1 (en) * 2010-05-21 2011-11-24 Gerald Deboy Maximum Power Point Tracker Bypass
US9768689B1 (en) * 2013-07-26 2017-09-19 Cirrus Logic, Inc. Controller for imposing current limits on a boost converter for managing thermal loads
US20160352225A1 (en) * 2015-05-25 2016-12-01 Apple Inc. Dynamic integration based current limiting for power converters
US20200235712A1 (en) * 2019-01-18 2020-07-23 Cirrus Logic International Semiconductor Ltd. Signal tracking-based supply voltage generation with over-boosted voltage
US20200388118A1 (en) * 2019-06-10 2020-12-10 Logitech Europe S.A. Doorbell system with energy storage device
CN112953242A (en) * 2021-03-25 2021-06-11 深圳南云微电子有限公司 Instantaneous overpower control method and circuit

Also Published As

Publication number Publication date
GB202401539D0 (en) 2024-03-20
WO2023027837A1 (en) 2023-03-02
KR20240047422A (en) 2024-04-12

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