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WO2008005463A3 - System and method for voltage protection in a powered device - Google Patents

System and method for voltage protection in a powered device Download PDF

Info

Publication number
WO2008005463A3
WO2008005463A3 PCT/US2007/015416 US2007015416W WO2008005463A3 WO 2008005463 A3 WO2008005463 A3 WO 2008005463A3 US 2007015416 W US2007015416 W US 2007015416W WO 2008005463 A3 WO2008005463 A3 WO 2008005463A3
Authority
WO
WIPO (PCT)
Prior art keywords
voltage protection
outputs
powered device
circuit
switch
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.)
Ceased
Application number
PCT/US2007/015416
Other languages
French (fr)
Other versions
WO2008005463A2 (en
Inventor
Bruce Webb Richard
Gammel John
Matthew Landry D
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.)
Silicon Laboratories Inc
Original Assignee
Silicon Laboratories 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 US11/480,328 external-priority patent/US7609494B2/en
Priority claimed from US11/484,449 external-priority patent/US7715165B2/en
Application filed by Silicon Laboratories Inc filed Critical Silicon Laboratories Inc
Publication of WO2008005463A2 publication Critical patent/WO2008005463A2/en
Anticipated expiration legal-status Critical
Publication of WO2008005463A3 publication Critical patent/WO2008005463A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
    • H02H9/046—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere responsive to excess voltage appearing at terminals of integrated circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A powered device includes a voltage protection circuit, two outputs, a switch, and a snubber circuit. The two outputs of the integrated circuit maybe coupled to an external transformer. The snubber circuit of the integrated circuit is responsive to the switch and is coupled with respect to the two outputs to direct energy from at least one of the two outputs to the voltage protection circuit.
PCT/US2007/015416 2006-06-30 2007-06-29 System and method for voltage protection in a powered device Ceased WO2008005463A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/480,328 2006-06-30
US11/480,328 US7609494B2 (en) 2006-06-30 2006-06-30 Voltage protection system and method for a powered device
US11/484,449 US7715165B2 (en) 2006-07-11 2006-07-11 System and method of surge protection in a powered device
US11/484,449 2006-07-11

Publications (2)

Publication Number Publication Date
WO2008005463A2 WO2008005463A2 (en) 2008-01-10
WO2008005463A3 true WO2008005463A3 (en) 2009-01-29

Family

ID=38895201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/015416 Ceased WO2008005463A2 (en) 2006-06-30 2007-06-29 System and method for voltage protection in a powered device

Country Status (1)

Country Link
WO (1) WO2008005463A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7715165B2 (en) 2006-07-11 2010-05-11 Silicon Laboratories, Inc. System and method of surge protection in a powered device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107294733B (en) * 2017-07-14 2023-05-02 博为科技有限公司 Power over Ethernet isolation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615094A (en) * 1995-05-26 1997-03-25 Power Conversion Products, Inc. Non-dissipative snubber circuit for a switched mode power supply
US6630805B2 (en) * 1997-07-18 2003-10-07 Siemens Vdo Automotive Inc. Actively controlled regenerative snubber for unipolar brushless DC motors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615094A (en) * 1995-05-26 1997-03-25 Power Conversion Products, Inc. Non-dissipative snubber circuit for a switched mode power supply
US6630805B2 (en) * 1997-07-18 2003-10-07 Siemens Vdo Automotive Inc. Actively controlled regenerative snubber for unipolar brushless DC motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7715165B2 (en) 2006-07-11 2010-05-11 Silicon Laboratories, Inc. System and method of surge protection in a powered device

Also Published As

Publication number Publication date
WO2008005463A2 (en) 2008-01-10

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