WO2004057449A3 - Power supply level monitoring and reset generation - Google Patents

Power supply level monitoring and reset generation Download PDF

Info

Publication number
WO2004057449A3
WO2004057449A3 PCT/IB2003/005986 IB0305986W WO2004057449A3 WO 2004057449 A3 WO2004057449 A3 WO 2004057449A3 IB 0305986 W IB0305986 W IB 0305986W WO 2004057449 A3 WO2004057449 A3 WO 2004057449A3
Authority
WO
WIPO (PCT)
Prior art keywords
lowbar
logic signal
power supply
level monitoring
supply level
Prior art date
Application number
PCT/IB2003/005986
Other languages
French (fr)
Other versions
WO2004057449A8 (en
WO2004057449A2 (en
Inventor
Filippo Maria Neri
Original Assignee
Koninkl Philips Electronics Nv
Filippo Maria Neri
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 Koninkl Philips Electronics Nv, Filippo Maria Neri filed Critical Koninkl Philips Electronics Nv
Priority to AU2003285643A priority Critical patent/AU2003285643A1/en
Priority to JP2004561858A priority patent/JP2006511161A/en
Priority to EP03778634A priority patent/EP1579302A2/en
Publication of WO2004057449A2 publication Critical patent/WO2004057449A2/en
Publication of WO2004057449A3 publication Critical patent/WO2004057449A3/en
Publication of WO2004057449A8 publication Critical patent/WO2004057449A8/en

Links

Classifications

    • 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
    • G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
    • 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
    • G06F1/24—Resetting means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Logic Circuits (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

Apparatus (10) for generating a logic signal (nporst) indicating that a supply voltage (VDDA) has reached a stable level. The apparatus (10) comprises a first unit (POR_1, 11) for comparing a reference voltage (vref) with a sub-voltage (input_plus) derived from the supply voltage (VDDA) in order to issue a first logic signal (out_res) when the sub-voltage (input_plus; Vtrl, Vsel) has reached the reference voltage (vref). A second unit (POR_2, 12;22) is provided for applying a delay in order to issue a delayed logic signal (out_delay). A logic unit (13) combines the first logic signal (out_res) and the delayed logic signal (out_delay) in order to provide the logic signal (nporst).
PCT/IB2003/005986 2002-12-20 2003-12-11 Power supply level monitoring and reset generation WO2004057449A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003285643A AU2003285643A1 (en) 2002-12-20 2003-12-11 Power supply level monitoring and reset generation
JP2004561858A JP2006511161A (en) 2002-12-20 2003-12-11 Power supply level monitoring and reset generation
EP03778634A EP1579302A2 (en) 2002-12-20 2003-12-11 Contact member for manhole and the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02102849 2002-12-20
EP02102849.3 2002-12-20

Publications (3)

Publication Number Publication Date
WO2004057449A2 WO2004057449A2 (en) 2004-07-08
WO2004057449A3 true WO2004057449A3 (en) 2004-09-10
WO2004057449A8 WO2004057449A8 (en) 2005-06-23

Family

ID=32668892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/005986 WO2004057449A2 (en) 2002-12-20 2003-12-11 Power supply level monitoring and reset generation

Country Status (5)

Country Link
EP (1) EP1579302A2 (en)
JP (1) JP2006511161A (en)
CN (1) CN1757164A (en)
AU (1) AU2003285643A1 (en)
WO (1) WO2004057449A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7420397B2 (en) 2004-06-02 2008-09-02 Stmicroelectronics Sa Low-consumption inhibit circuit with hysteresis
CN100351738C (en) * 2004-07-29 2007-11-28 中兴通讯股份有限公司 Automatic power down rebooting device
CN100561403C (en) * 2005-10-17 2009-11-18 鸿富锦精密工业（深圳）有限公司 The DC voltage circuit for detecting
EP1883160B1 (en) * 2006-07-28 2008-09-24 STMicroelectronics S.r.l. Power on reset circuit for a digital device including an on-chip voltage down converter
TWI474615B (en) * 2008-08-15 2015-02-21 Chi Mei Comm Systems Inc Delay circuit
US9369124B2 (en) 2011-04-07 2016-06-14 Nxp B.V. Power-on-reset circuit with low power consumption
CN103138716B (en) * 2013-01-31 2015-08-12 深圳威迈斯电源有限公司 The monostable protection circuit that a kind of power down triggers
CN103164009A (en) * 2013-04-03 2013-06-19 北京昆腾微电子有限公司 Power-on and power-off reset circuit with multiple power supplies and operation method thereof
CN110838312B (en) * 2018-08-17 2023-03-24 华邦电子股份有限公司 Circuit for power loss recovery and apparatus and method using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473759A (en) * 1982-04-22 1984-09-25 Motorola, Inc. Power sensing circuit and method
EP0740417A2 (en) * 1995-04-28 1996-10-30 Kabushiki Kaisha Toshiba Input circuit and semiconductor integrated circuit device including same
US6163183A (en) * 1999-07-16 2000-12-19 Lucent Technologies, Inc Multifunction reset for mixed-signal integrated circuits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473759A (en) * 1982-04-22 1984-09-25 Motorola, Inc. Power sensing circuit and method
EP0740417A2 (en) * 1995-04-28 1996-10-30 Kabushiki Kaisha Toshiba Input circuit and semiconductor integrated circuit device including same
US6163183A (en) * 1999-07-16 2000-12-19 Lucent Technologies, Inc Multifunction reset for mixed-signal integrated circuits

Also Published As

Publication number Publication date
AU2003285643A1 (en) 2004-07-14
AU2003285643A8 (en) 2004-07-14
EP1579302A2 (en) 2005-09-28
CN1757164A (en) 2006-04-05
JP2006511161A (en) 2006-03-30
WO2004057449A8 (en) 2005-06-23
WO2004057449A2 (en) 2004-07-08

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