WO2004102820A3 - Peak current control in wireless network interface devices - Google Patents

Peak current control in wireless network interface devices Download PDF

Info

Publication number
WO2004102820A3
WO2004102820A3 PCT/CA2004/000733 CA2004000733W WO2004102820A3 WO 2004102820 A3 WO2004102820 A3 WO 2004102820A3 CA 2004000733 W CA2004000733 W CA 2004000733W WO 2004102820 A3 WO2004102820 A3 WO 2004102820A3
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
esr
network interface
wireless network
super capacitor
Prior art date
Application number
PCT/CA2004/000733
Other languages
French (fr)
Other versions
WO2004102820A2 (en
Inventor
Ping Liu
Bruce Miller
Rachel Wong
Original Assignee
Sierra Wireless Inc
Ping Liu
Bruce Miller
Rachel Wong
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 Sierra Wireless Inc, Ping Liu, Bruce Miller, Rachel Wong filed Critical Sierra Wireless Inc
Priority to CA002519932A priority Critical patent/CA2519932A1/en
Priority to EP04732909A priority patent/EP1625485A2/en
Publication of WO2004102820A2 publication Critical patent/WO2004102820A2/en
Publication of WO2004102820A3 publication Critical patent/WO2004102820A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0416—Circuits with power amplifiers having gain or transmission power control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Methods of and apparatuses for varying and controlling the efective series resistance (ESR) of a power supply rail configured to transmit power from a power supply of a host device to a wireless network interface device (e.g. a wireless modem). Varying and controlling the ESR of the power supply rail, relative to an ESR of a super capacitor coupled to the power supply rail, allows control of the currents drawn from the host power supply and a super capacitor. During a time when the wireless network interface device is transmitting or is about to transmit, the ESR of the power supply rail is increased so that it exceeds the ESR of the super capacitor, thereby causing current for the power amplifier (PA) of the wireless network interface device to be drawn primarily from the super capacitor, rather than from the host power supply. During a time when the wireless network interface device has completed transmitting or is about to complete transmitting, the ESR of the host power supply is lowered so that it is less than the ESR of the super capacitor, thereby causing the super capacitor to enter a charging state.
PCT/CA2004/000733 2003-05-16 2004-05-14 Peak current control in wireless network interface devices WO2004102820A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002519932A CA2519932A1 (en) 2003-05-16 2004-05-14 Peak current control in wireless network interface devices
EP04732909A EP1625485A2 (en) 2003-05-16 2004-05-14 Peak current control in wireless network interface devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/439,990 2003-05-16
US10/439,990 US7343175B2 (en) 2003-05-16 2003-05-16 Peak current control in wireless network interface devices

Publications (2)

Publication Number Publication Date
WO2004102820A2 WO2004102820A2 (en) 2004-11-25
WO2004102820A3 true WO2004102820A3 (en) 2005-04-07

Family

ID=33417952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2004/000733 WO2004102820A2 (en) 2003-05-16 2004-05-14 Peak current control in wireless network interface devices

Country Status (5)

Country Link
US (1) US7343175B2 (en)
EP (1) EP1625485A2 (en)
CN (1) CN100374983C (en)
CA (1) CA2519932A1 (en)
WO (1) WO2004102820A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100903453B1 (en) * 2004-07-30 2009-06-18 교세라 가부시키가이샤 Wireless communication terminal and control method thereof
US20060046766A1 (en) * 2004-09-01 2006-03-02 Abet Technologies, Llc Method and system for bidirectional communications and power transmission
US7405652B2 (en) * 2004-09-21 2008-07-29 Abet Technologies, Llc Communication and AC power system
US7809647B2 (en) * 2005-01-27 2010-10-05 International Business Machines Corporation Processing system for recording media content
JP2008537193A (en) * 2005-01-31 2008-09-11 アベット テクノロジーズ，エルエルシー Secure computer system
US20090218997A1 (en) * 2008-02-29 2009-09-03 Hey George M Power supply circuit
KR100877615B1 (en) * 2008-03-26 2009-01-07 주식회사 서비전자 Power device of clean remocon
WO2010094119A1 (en) * 2009-02-23 2010-08-26 Sierra Wireless, Inc. Apparatus providing plural wireless transceivers within a desired power budget and associated method
US9083575B2 (en) * 2011-03-25 2015-07-14 Micron Technology, Inc. Devices having different effective series resistance states and methods for controlling such devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561257A1 (en) * 1992-03-20 1993-09-22 Siemens Aktiengesellschaft Circuit arrangement for bridging momentary voltage drops in battery supplied radio devices
EP0735642A1 (en) * 1995-03-29 1996-10-02 Nec Corporation Power supply circuit having an auxiliary power source for compensating for main power drop
EP1024612A1 (en) * 1999-01-18 2000-08-02 Alcatel Powersupply for a radio communications terminal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999832A (en) * 1997-07-31 1999-12-07 Vannatta; Louis J. Method of and apparatus for controlling a transmit power of a communication device
JP3651409B2 (en) * 2001-05-14 2005-05-25 セイコーエプソン株式会社 Semiconductor integrated device and electronic equipment
TW515940B (en) * 2001-11-23 2003-01-01 Compal Electronics Inc Add-on card for wireless communication with power managing circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561257A1 (en) * 1992-03-20 1993-09-22 Siemens Aktiengesellschaft Circuit arrangement for bridging momentary voltage drops in battery supplied radio devices
EP0735642A1 (en) * 1995-03-29 1996-10-02 Nec Corporation Power supply circuit having an auxiliary power source for compensating for main power drop
EP1024612A1 (en) * 1999-01-18 2000-08-02 Alcatel Powersupply for a radio communications terminal

Also Published As

Publication number Publication date
CN1791848A (en) 2006-06-21
CA2519932A1 (en) 2004-11-25
EP1625485A2 (en) 2006-02-15
CN100374983C (en) 2008-03-12
US20040229660A1 (en) 2004-11-18
US7343175B2 (en) 2008-03-11
WO2004102820A2 (en) 2004-11-25

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