Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1997-06-18
1999-01-19
Nguyen, Matthew
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
363 98, H05B 3702, H02M 744
Patent
active
058617191
ABSTRACT:
A power supply for a capacitive load, such as an electroluminescent lamp, converts a low battery voltage to a significantly higher voltage of alternating polarity to drive the load. A desired voltage waveform is applied to the load by accumulating charge in its inherent capacitance from voltage spikes resulting from rapidly disconnecting an inductor from the battery. The maximum voltage applied to the load is maintained below a maximum by a feedback loop that monitors a reduced voltage by use of a voltage divider. The voltage divider is formed of a plurality of capacitors connected in series, the reduced voltage being monitored across one of them. The entire power supply is formed on a single integrated circuit chip, except for the inductor, battery and load.
REFERENCES:
patent: 4210848 (1980-07-01), Suzuki et al.
patent: 4277728 (1981-07-01), Stevens
patent: 4443741 (1984-04-01), Tanaka et al.
patent: 4449075 (1984-05-01), D'Onofrio et al.
patent: 4527096 (1985-07-01), Kindlmann
patent: 4769753 (1988-09-01), Knudson et al.
patent: 4937477 (1990-06-01), Tsoi et al.
patent: 4982314 (1991-01-01), Miki
patent: 5068570 (1991-11-01), Oda et al.
patent: 5142203 (1992-08-01), Oda et al.
patent: 5306954 (1994-04-01), Chan et al.
patent: 5313141 (1994-05-01), Kimball
patent: 5347198 (1994-09-01), Kimball
patent: 5349269 (1994-09-01), Kimball
patent: 5397928 (1995-03-01), Chan et al.
patent: 5412544 (1995-05-01), Derrick et al.
patent: 5418434 (1995-05-01), Kamens et al.
patent: 5463283 (1995-10-01), Sanderson
patent: 5475285 (1995-12-01), Konopka
patent: 5483503 (1996-01-01), Kimball
patent: 5493183 (1996-02-01), Kimball
patent: 5495404 (1996-02-01), Stephens
patent: 5502357 (1996-03-01), Kimball
patent: 5508585 (1996-04-01), Butt
patent: 5514935 (1996-05-01), Oda et al.
patent: 5525869 (1996-06-01), Wood
patent: 5530318 (1996-06-01), Ensign, Jr. et al.
patent: 5539707 (1996-07-01), Wood
patent: 5557175 (1996-09-01), Wood
patent: 5686797 (1997-11-01), Sanderson
Article, "SP4422A Electroluminescent Lamp Driver," Sipex, SP4422A TG062096-00, pp. 1-8.
Booklet entitled: "Durel Electroluminescent System," Durel Corporation, pp. 1-20, (1995).
BKL, Inc. Pamphlets entitled: "BKL Performance Graphs--Aviation Green N3," front/back pages (Sep. 1993); BKL Performance Graphs--Aviation Green P4 High Voltage, (White P4 High Voltage) to Aviation Green P4 Low Voltage, four pages (Mar. 1994); BKL Inverters, front/back pages (Jul. 20, 1995); BKL Electroluminescent Lamp and Inverter Systems, pp. 1-3 (Jul. 20, 1995); BKL Performance Graphs,--Green KHA High Voltage, front/back pages (Aug. 1996); and BKL E1 Panel and Inverter System Performance, one page (Sep. 1996).
Insert from Supertex, Inc. (HV803) Pamphlet entitled: "High-Voltage EL Lamp Driver," pp. 10-12 of 14 (published date unknown but prior to Jan. 1, 1997 .
Koskowich Gregory N.
Latham, II Paul W.
IMP Inc.
Nguyen Matthew
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