Electric lamp and discharge devices: systems – Condenser in the supply circuit – Arc machining
Reexamination Certificate
2005-02-15
2005-02-15
Wong, Don (Department: 2821)
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Arc machining
C315S240000, C315SDIG004, C315S237000, C315S291000, C315S186000, C315S2090SC, C315S324000
Reexamination Certificate
active
06856101
ABSTRACT:
Switching of parallel capacitors in an HID bi-level lighting control system is accomplished through use of transient voltage suppression across an electronic relay for discharge of residual charge from a switched capacitor when combined peak voltage exceeds clamping voltage, thereby allowing maximum switch voltage rating to be lower than is possible through the use of conventional switching methods and circuitry. The invention contemplates method and apparatus permitting capacitive switching at voltage levels higher than are possible in conventional capacitive switching arrangements including capacitive switching arrangements used in lighting control systems.
REFERENCES:
patent: 3890573 (1975-06-01), Strenglein
patent: 4924109 (1990-05-01), Weber
patent: 5227762 (1993-07-01), Guidette et al.
patent: 5327048 (1994-07-01), Troy
patent: 5451843 (1995-09-01), Kahn et al.
patent: 5633540 (1997-05-01), Moan
patent: 6031340 (2000-02-01), Brosius
patent: 6043636 (2000-03-01), Gaudreau et al.
Acuity Brands Inc.
Darnell Kenneth E.
Tran Chuc
Wong Don
LandOfFree
Method and apparatus for switching of parallel capacitors in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for switching of parallel capacitors in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for switching of parallel capacitors in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3504104