WO2005083914A3 - Recovering energy from an irda/remote control transmitter circuit - Google Patents

Recovering energy from an irda/remote control transmitter circuit Download PDF

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Publication number
WO2005083914A3
WO2005083914A3 PCT/US2004/027939 US2004027939W WO2005083914A3 WO 2005083914 A3 WO2005083914 A3 WO 2005083914A3 US 2004027939 W US2004027939 W US 2004027939W WO 2005083914 A3 WO2005083914 A3 WO 2005083914A3
Authority
WO
WIPO (PCT)
Prior art keywords
inductor
energy
remote control
irda
power supply
Prior art date
Application number
PCT/US2004/027939
Other languages
French (fr)
Other versions
WO2005083914A2 (en
Inventor
Alan Grace
Original Assignee
Zilog Inc
Alan Grace
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 US10/788,180 external-priority patent/US7509057B2/en
Priority claimed from US10/897,290 external-priority patent/US7474857B2/en
Application filed by Zilog Inc, Alan Grace filed Critical Zilog Inc
Publication of WO2005083914A2 publication Critical patent/WO2005083914A2/en
Publication of WO2005083914A3 publication Critical patent/WO2005083914A3/en

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
    • H02M1/32—Means for protecting converters other than automatic disconnection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

A portable electronic device with an IrDA transmitter LED is used to transmit both IrDA signals and remote control infrared signals. The device transmits remote control infrared signals with reduced power consumption. During a relatively longer remote control signal pulse, an inductor saturates and stores energy when a drive current flows from a power supply, through the inductor and then through the LED. An energy-transferring circuit transfers a portion of the energy stored in the inductor to the power supply. Energy is transferred when the drive current is cut and the voltage across the inductor surges, which causes an overflow current to flow through a diode in the energy-transferring circuit and to the power supply. The inductor is a planar coil of traces on a printed circuit board and therefore costs less to manufacture than does a toroidal coil of wires.
PCT/US2004/027939 2004-02-25 2004-08-27 Recovering energy from an irda/remote control transmitter circuit WO2005083914A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/788,180 2004-02-25
US10/788,180 US7509057B2 (en) 2004-02-25 2004-02-25 IrDA transceiver module that also functions as remote control IR transmitter
US10/897,290 2004-07-21
US10/897,290 US7474857B2 (en) 2004-07-21 2004-07-21 Recovering energy from an IrDA/remote control transmitter circuit

Publications (2)

Publication Number Publication Date
WO2005083914A2 WO2005083914A2 (en) 2005-09-09
WO2005083914A3 true WO2005083914A3 (en) 2006-04-13

Family

ID=34915788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/027939 WO2005083914A2 (en) 2004-02-25 2004-08-27 Recovering energy from an irda/remote control transmitter circuit

Country Status (1)

Country Link
WO (1) WO2005083914A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178735A (en) * 1984-02-24 1985-09-12 Sumitomo Electric Ind Ltd Drive circuit of light emitting element
US4912620A (en) * 1989-05-19 1990-03-27 Boschert, Inc. Lossless clipper with peak regulation feature
US5652561A (en) * 1993-06-29 1997-07-29 Yokogawa Electric Corporation Laminating type molded coil
EP1054423A1 (en) * 1997-10-10 2000-11-22 Pin Yin Liu Electric power supplying and recovering apparatus
US6208534B1 (en) * 2000-04-04 2001-03-27 Switch Power, Inc. Generating bias voltage in a voltage converter
EP1345341A2 (en) * 2002-03-14 2003-09-17 Agilent Technologies, Inc. Optical transceiver for data transfer and control applications

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178735A (en) * 1984-02-24 1985-09-12 Sumitomo Electric Ind Ltd Drive circuit of light emitting element
US4912620A (en) * 1989-05-19 1990-03-27 Boschert, Inc. Lossless clipper with peak regulation feature
US5652561A (en) * 1993-06-29 1997-07-29 Yokogawa Electric Corporation Laminating type molded coil
EP1054423A1 (en) * 1997-10-10 2000-11-22 Pin Yin Liu Electric power supplying and recovering apparatus
US6208534B1 (en) * 2000-04-04 2001-03-27 Switch Power, Inc. Generating bias voltage in a voltage converter
EP1345341A2 (en) * 2002-03-14 2003-09-17 Agilent Technologies, Inc. Optical transceiver for data transfer and control applications

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Utilizing a Vishay IrDA Transceiver for Remote Control", VISHAY SEMICONDUCTOR APPLICATION NOTE, no. 82606, 20 February 2004 (2004-02-20), XP008042427 *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 016 (E - 375) 22 January 1986 (1986-01-22) *

Also Published As

Publication number Publication date
WO2005083914A2 (en) 2005-09-09

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