发明名称 |
Schaltung zum Starten einer Hochdruckgasentladungslampe mit einer Zusatzleistung |
摘要 |
The invention relates to a circuit arrangement for operating a high-pressure discharge lamp with which the high-pressure discharge lamp supplies a luminous flux of at least 60% of the nominal luminous flux l s after ignition already. The circuit arrangement comprises: a static converter for generating a DC voltage, a commutator provided with lamp connection terminals, means A for current stabilization during stable lamp operation through controlling of the static converter, means B for operating the lamp with an increased run-up current and an increased power as compared with nominal operation on the basis of an instantaneous lamp voltage signal. According to the invention, the circuit arrangement comprises means C such that the operation at the increased power comprises at least a portion for connection to and transition to nominal operation, which portion has a falling characteristic with a time constant independent of lamp voltage. <IMAGE> |
申请公布号 |
DE69428732(T2) |
申请公布日期 |
2002.07.11 |
申请号 |
DE1994628732T |
申请日期 |
1994.03.29 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN |
发明人 |
LUURSEMA, MEERTEN;REIJNDERS, NICOLAAS HUBERTINA GERARDUS |
分类号 |
H05B41/00;H05B41/231;H05B41/282;H05B41/288;H05B41/38 |
主分类号 |
H05B41/00 |
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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