Apparatus for driving field emission lamp

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8536795
APP PUB NO 20110221359A1
SERIAL NO

13041971

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Importance

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Abstract

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This control device, for a representative lamp L1, by way of a power control circuit 20, detects the cathode current Ik from a resistor TRk1, and controls a high-voltage stabilizing circuit 10, and performs drive control so that the gate voltages, which were divided from the output voltage Vgo from the high-voltage stabilizing circuit 10, become suitable voltages. Moreover, the control device, for other lamps L2, . . . , Ln, by way of the power control circuit 20, changes the voltage dividing ratio of impedance dividing by resistors R21, R22, . . . , Rn1, Rn2 for the output voltage Vgo using control elements Q2, . . . , Qn, and performs control so that the cathode current of each of the lamps L2, . . . , Ln becomes the same as the cathode current of the representative lamp L1.

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Patent Owner(s)

Patent OwnerAddress
FUJI JUKOGYO KABUSHIKI KAISHA7-2 NISHISHINJUKU 1-CHOME SHINJUKU-KU TOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anzawa, Seiichi Nagano, JP 14 221
Namba, Atsushi Tokyo, JP 21 151

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