发明名称 |
Ballast circuit for metal halide lamp |
摘要 |
A ballast circuit and method of operating gas discharge lamps are disclosed. The ballast circuit generates a relatively low frequency regulated square-wave current which advantageously provides for operating the gas discharge lamps during their run mode. The square-wave current delivered to the electrodes of the gas discharge lamp reduces or substantially eliminates the cataphoresis effects typically created by D.C. and 60 Hz operation of the gas discharge lamp while also reducing or substantially eliminating the detrimental acoustics resonance effects typically created by operating the gas discharge lamps at relatively high frequency of excitations.
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申请公布号 |
US4904907(A) |
申请公布日期 |
1990.02.27 |
申请号 |
US19880161058 |
申请日期 |
1988.02.26 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
ALLISON, JOSEPH M.;HANSLER, RICHARD L.;FRENCH, PARK;DAVENPORT, JOHN M.;LESKOVEC, ROBERT A. |
分类号 |
B60Q1/04;H05B41/16;H05B41/24;H05B41/282;H05B41/292 |
主分类号 |
B60Q1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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