Power supply DC voltage offset detector

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – With power factor control device

Reexamination Certificate

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Details

C315S307000, C363S089000

Reexamination Certificate

active

07863828

ABSTRACT:
A power supply output voltage direct current (DC) offset detector determines a DC offset in a power supply output voltage signal, and the output voltage signal has a DC component and an alternating current (AC) “ripple” component. Once during each period of the ripple, the DC offset detector determines the DC offset from an output voltage signal using a comparison between the output voltage signal and a reference voltage. In at least one embodiment, from the comparison and during a period of the ripple, the DC offset detector determines an ‘above’ duration for which the ripple is above the reference voltage, determines a ‘below’ duration for which the ripple is below the reference voltage, or both to determine the DC offset of the power supply output voltage signal. The DC offset detector uses the above and/or below duration(s) to determine the DC offset of the output voltage signal.

REFERENCES:
patent: 3316495 (1967-04-01), Sherer
patent: 3423689 (1969-01-01), Miller et al.
patent: 3586988 (1971-06-01), Weekes
patent: 3725804 (1973-04-01), Langan
patent: 3790878 (1974-02-01), Brokaw
patent: 3881167 (1975-04-01), Pelton et al.
patent: 4075701 (1978-02-01), Hofmann
patent: 4334250 (1982-06-01), Theus
patent: 4414493 (1983-11-01), Henrich
patent: 4476706 (1984-10-01), Hadden et al.
patent: 4677366 (1987-06-01), Wilkinson et al.
patent: 4683529 (1987-07-01), Bucher
patent: 4700188 (1987-10-01), James
patent: 4737658 (1988-04-01), Kronmuller et al.
patent: 4797633 (1989-01-01), Humphrey
patent: 4940929 (1990-07-01), Williams
patent: 4973919 (1990-11-01), Allfather
patent: 4979087 (1990-12-01), Sellwood et al.
patent: 4992919 (1991-02-01), Lee et al.
patent: 4994952 (1991-02-01), Silva et al.
patent: 5206540 (1993-04-01), de Sa e Silva et al.
patent: 5278490 (1994-01-01), Smedley
patent: 5323157 (1994-06-01), Ledzius et al.
patent: 5359180 (1994-10-01), Park et al.
patent: 5383109 (1995-01-01), Maksimovic et al.
patent: 5477481 (1995-12-01), Kerth
patent: 5481178 (1996-01-01), Wilcox et al.
patent: 5565761 (1996-10-01), Hwang
patent: 5638265 (1997-06-01), Gabor
patent: 5691890 (1997-11-01), Hyde
patent: 5747977 (1998-05-01), Hwang
patent: 5764039 (1998-06-01), Choi et al.
patent: 5781040 (1998-07-01), Myers
patent: 5783909 (1998-07-01), Hochstein
patent: 5900683 (1999-05-01), Rinehart et al.
patent: 5929400 (1999-07-01), Colby et al.
patent: 5946202 (1999-08-01), Balogh
patent: 5952849 (1999-09-01), Haigh et al.
patent: 5960207 (1999-09-01), Brown
patent: 5963086 (1999-10-01), Hall
patent: 5966297 (1999-10-01), Minegishi
patent: 5994885 (1999-11-01), Wilcox et al.
patent: 6016038 (2000-01-01), Mueller et al.
patent: 6043633 (2000-03-01), Lev et al.
patent: 6072969 (2000-06-01), Yokomori et al.
patent: 6083276 (2000-07-01), Davidson et al.
patent: 6084450 (2000-07-01), Smith et al.
patent: 6150774 (2000-11-01), Mueller et al.
patent: 6211626 (2001-04-01), Lys et al.
patent: 6211627 (2001-04-01), Callahan
patent: 6229271 (2001-05-01), Liu
patent: 6246183 (2001-06-01), Buonavita
patent: 6259614 (2001-07-01), Ribarich et al.
patent: 6300723 (2001-10-01), Wang et al.
patent: 6304066 (2001-10-01), Wilcox et al.
patent: 6304473 (2001-10-01), Telefus et al.
patent: 6344811 (2002-02-01), Melanson
patent: 6385063 (2002-05-01), Sadek et al.
patent: 6407691 (2002-06-01), Yu
patent: 6441558 (2002-08-01), Muthu et al.
patent: 6445600 (2002-09-01), Ben-Yaakov
patent: 6452521 (2002-09-01), Wang
patent: 6495964 (2002-12-01), Muthu et al.
patent: 6509913 (2003-01-01), Martin, Jr. et al.
patent: 6580258 (2003-06-01), Wilcox et al.
patent: 6583550 (2003-06-01), Iwasa et al.
patent: 6636003 (2003-10-01), Rahm et al.
patent: 6688753 (2004-02-01), Calon et al.
patent: 6713974 (2004-03-01), Patchornik et al.
patent: 6727832 (2004-04-01), Melanson
patent: 6741123 (2004-05-01), Melanson et al.
patent: 6753661 (2004-06-01), Muthu et al.
patent: 6768655 (2004-07-01), Yang et al.
patent: 6781351 (2004-08-01), Mednik et al.
patent: 6788011 (2004-09-01), Mueller et al.
patent: 6806659 (2004-10-01), Mueller et al.
patent: 6839247 (2005-01-01), Yang
patent: 6860628 (2005-03-01), Robertson et al.
patent: 6870325 (2005-03-01), Bushell et al.
patent: 6873065 (2005-03-01), Haigh et al.
patent: 6882552 (2005-04-01), Telefus et al.
patent: 6888322 (2005-05-01), Dowling et al.
patent: 6894471 (2005-05-01), Corva et al.
patent: 6933706 (2005-08-01), Shih
patent: 6940733 (2005-09-01), Schie et al.
patent: 6944034 (2005-09-01), Shteynberg et al.
patent: 6956750 (2005-10-01), Eason et al.
patent: 6958920 (2005-10-01), Mednik et al.
patent: 6967448 (2005-11-01), Morgan et al.
patent: 6970503 (2005-11-01), Kalb
patent: 6975079 (2005-12-01), Lys et al.
patent: 7003023 (2006-02-01), Krone et al.
patent: 7050509 (2006-05-01), Krone et al.
patent: 7064498 (2006-06-01), Dowling et al.
patent: 7064531 (2006-06-01), Zinn
patent: 7075329 (2006-07-01), Chen et al.
patent: 7078963 (2006-07-01), Andersen et al.
patent: 7088059 (2006-08-01), McKinney et al.
patent: 7102902 (2006-09-01), Brown et al.
patent: 7106603 (2006-09-01), Lin et al.
patent: 7109791 (2006-09-01), Epperson et al.
patent: 7126288 (2006-10-01), Ribarich et al.
patent: 7135824 (2006-11-01), Lys et al.
patent: 7145295 (2006-12-01), Lee et al.
patent: 7158633 (2007-01-01), Hein
patent: 7161816 (2007-01-01), Shytenberg et al.
patent: 7183957 (2007-02-01), Melanson
patent: 7221130 (2007-05-01), Ribeiro et al.
patent: 7233135 (2007-06-01), Noma et al.
patent: 7246919 (2007-07-01), Porchia et al.
patent: 7255457 (2007-08-01), Ducharm et al.
patent: 7266001 (2007-09-01), Notohamiprodjo et al.
patent: 7288902 (2007-10-01), Melanson
patent: 7292013 (2007-11-01), Chen et al.
patent: 7310244 (2007-12-01), Yang et al.
patent: 7375476 (2008-05-01), Walter et al.
patent: 7511437 (2009-03-01), Lys et al.
patent: 7538499 (2009-05-01), Ashdown
patent: 7545130 (2009-06-01), Latham
patent: 7554473 (2009-06-01), Melanson
patent: 7569996 (2009-08-01), Holmes et al.
patent: 7656103 (2010-02-01), Shteynberg et al.
patent: 2002/0145041 (2002-10-01), Muthu et al.
patent: 2002/0150151 (2002-10-01), Krone et al.
patent: 2002/0166073 (2002-11-01), Nguyen et al.
patent: 2003/0095013 (2003-05-01), Melanson et al.
patent: 2003/0223255 (2003-12-01), Ben-Yaakov
patent: 2004/0046683 (2004-03-01), Mitamura et al.
patent: 2004/0085030 (2004-05-01), Laflamme et al.
patent: 2004/0085117 (2004-05-01), Melbert et al.
patent: 2004/0169477 (2004-09-01), Yancie et al.
patent: 2004/0227571 (2004-11-01), Kuribayashi
patent: 2004/0228116 (2004-11-01), Miller et al.
patent: 2004/0232971 (2004-11-01), Kawasaki et al.
patent: 2004/0239262 (2004-12-01), Ido et al.
patent: 2005/0057237 (2005-03-01), Clavel
patent: 2005/0156770 (2005-07-01), Melanson
patent: 2005/0184895 (2005-08-01), Petersen et al.
patent: 2005/0207190 (2005-09-01), Gritter
patent: 2005/0218838 (2005-10-01), Lys
patent: 2005/0253533 (2005-11-01), Lys et al.
patent: 2005/0270813 (2005-12-01), Zhang et al.
patent: 2005/0275354 (2005-12-01), Hausman, Jr. et al.
patent: 2005/0275386 (2005-12-01), Jepsen et al.
patent: 2006/0022916 (2006-02-01), Aiello
patent: 2006/0023002 (2006-02-01), Hara et al.
patent: 2006/0125420 (2006-06-01), Boone et al.
patent: 2006/0226795 (2006-10-01), Walter et al.
patent: 2006/0238136 (2006-10-01), Johnson, III et al.
patent: 2006/0261754 (2006-11-01), Lee
patent: 2007/0029946 (2007-02-01), Yu et al.
patent: 2007/0040512 (2007-02-01), Jungwirth et al.
patent: 2007/0053182 (2007-03-01), Robertson
patent: 2007/0103949 (2007-05-01), Tsuruya
patent: 2007/0124615 (2007-05-01), Orr
patent: 2007/0182699 (2007-08-01), Ha et al.
patent: 2008/0130322 (2008-06-01), Artusi et al.
patent: 2008/0174372 (2008-07-01), Tucker et al.
patent: 2008/0192509 (2008-08-01), Dhuyvetter et al.
patent: 2008/0224635 (2008-09-01), Hayes
patent: 2008/0232141 (2008-09-01), Artusi et al.
patent: 2008/0259655 (2008-10-01), Wei et al.
patent: 2008/0278132 (2008-11-01), Kesterson et al.
patent: 2009/0147544 (2009-06-01), Melanson
patent: 2009/0218960 (2009-09-01), Lyons et al.
patent: 0585789 (1994-03-01), None
patent:

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