Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...
Patent
1993-06-24
1995-08-01
Pascal, Robert J.
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Periodic switch in the primary circuit of the supply...
315224, 315307, 315308, 315248, H05B 3700
Patent
active
054382424
ABSTRACT:
A power supply for providing a stable operating current to a magnetron-excited lamp. The power supply includes a DC to DC inverter for driving a primary winding of a high voltage transformer. The DC to DC inverter has a circuit including two pairs of switching elements for connecting a DC voltage supply to the primary winding. During each half of the switching cycle, one of the switching elements is pulse width modulated while the other remains on for a substantially fixed period of time. During the second half of the cycle, the remaining pair operates so that one switching device is on for a pulse width modulated period of time, and the other is on a substantially constant amount of time. The on time for the pulse width modulated switching elements is defined by an input voltage setting representing a desired brightness level for the lamp, the output magnetron current, and a representative of the integral of the current flowing through the primary of the inverter transformer.
REFERENCES:
patent: 5334913 (1994-08-01), Ury et al.
"A 1.6-kw, 110-kW DC-DC Converter Optimized for IGBT's", IEEE Transactions, vol. 8, No. 1, Jan. 1993.
Fusion Systems Corporation
Pascal Robert J.
Shingleton Michael B.
LandOfFree
Apparatus for controlling the brightness of a magnetron-excited does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling the brightness of a magnetron-excited , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling the brightness of a magnetron-excited will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-735400