Electronic control systems and methods

Details Electronic control systems and methods Electronic control systems and methods

2010-04-05

2010-12-28

Nguyen, Danny (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

C361S170000

Reexamination Certificate

active

07859815

ABSTRACT:
An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared. Lockout circuitry is used to prevent one protection circuit from tripping after the other circuit has already tripped from a fault condition. The protection circuitry output is desirably configured such that it can bypass and override the normal turn on and turn off impedance and act virtually directly on the gates of the MOSFETs. Preferably, the system has a high efficiency switching type power supply in parallel with a low frequency controllably conductive device.

REFERENCES:
patent: 3679965 (1972-07-01), Wilkinson
patent: 3792289 (1974-02-01), Kazem
patent: 3835368 (1974-09-01), Williams
patent: 4074101 (1978-02-01), Kiuchi et al.
patent: 4259789 (1981-04-01), Mallett
patent: 4350935 (1982-09-01), Spira et al.
patent: 4350948 (1982-09-01), Meroni
patent: 4528494 (1985-07-01), Bloomer
patent: 4760324 (1988-07-01), Underhill
patent: 4855858 (1989-08-01), Boertzel et al.
patent: 4893212 (1990-01-01), Wong et al.
patent: 5021679 (1991-06-01), Fairbanks et al.
patent: 5109186 (1992-04-01), Lieu
patent: 5111380 (1992-05-01), Nilssen
patent: 5224029 (1993-06-01), Newman, Jr.
patent: 5278490 (1994-01-01), Smedley
patent: 5291384 (1994-03-01), Mammano et al.
patent: 5440441 (1995-08-01), Ahuja
patent: 5463286 (1995-10-01), D'Aleo et al.
patent: 5563759 (1996-10-01), Nadd
patent: 5600233 (1997-02-01), Warren et al.
patent: 5606481 (1997-02-01), Heep et al.
patent: 5670858 (1997-09-01), Heath
patent: 5737163 (1998-04-01), Newlin
patent: 5751561 (1998-05-01), Ho et al.
patent: 5777837 (1998-07-01), Eckel et al.
patent: 5798581 (1998-08-01), Keagy et al.
patent: 5804991 (1998-09-01), Hu
patent: 5811963 (1998-09-01), Elwell
patent: 5818214 (1998-10-01), Pelly et al.
patent: 5914865 (1999-06-01), Barbehenn et al.
patent: 5923154 (1999-07-01), Moller
patent: 5959443 (1999-09-01), Littlefield
patent: 6043635 (2000-03-01), Downey
patent: 6133696 (2000-10-01), Tavares et al.
patent: 6222353 (2001-04-01), Pattamatta et al.
patent: 6262565 (2001-07-01), Williams et al.
patent: 6603276 (2003-08-01), Chansky et al.
patent: 6750564 (2004-06-01), Cencur
patent: 6969959 (2005-11-01), Black et al.
patent: 7005762 (2006-02-01), Black et al.
patent: 7342764 (2008-03-01), Black
patent: 7358627 (2008-04-01), Black et al.
patent: 2006/0119187 (2006-06-01), Newman, Jr.
patent: 0107137 (1984-05-01), None
patent: 0 261 389 (1988-03-01), None
patent: 06-244414 (1994-09-01), None
patent: 08076862 (1996-03-01), None
patent: 09-140121 (1997-05-01), None
patent: 09-154273 (1997-06-01), None
patent: 10-023742 (1998-01-01), None
patent: 10-136656 (1998-05-01), None
patent: 10-295072 (1998-11-01), None
patent: 2000-236656 (2000-08-01), None
patent: 2001-57772 (2001-02-01), None
patent: WO 00/79681 (2000-12-01), None
Busch Universal Dimmer Product Literature, 6 pages.
EPO Extended Search Report, May 20, 2009, for EP08172234.
Microcmputer Control of Zero Crossing Detection Accuracy, IBM Technical Disclosure Bulletin, Mar. 1982, US, NH82035025, page No. 5025-5027.
Power Integrations, Inc., Product Literature TNY253/254/255 TinySwitch Family Energy Efficient, Low Power Off-Line Switchers, 20 pages, Jul. 2001.
STMicroelectronics, “High Voltage Linear Regulator Power I.C.”, VB408B, VB408FI, Sep. 1999, 1-8.

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