发明名称 |
CONVERTER FOR SUPPLYING DISCHARGE LAMPS |
摘要 |
A supply circuit for a discharge lamp comprises a transistor bridge converter T1-T4 feeding the lamp L with alternating current under the control of a control circuit G, this converter being fed via a chopper transistor T5 from a direct current power supply. The brightness of the lamp is controlled by controlling the ratio of the conducting to non-conducting periods of the chopper transistor by adjustment of a reference signal Io in a regulating circuit A1A2R6 for the chopper. A discharge lamp incorporating such a supply circuit in its base is described. <IMAGE> |
申请公布号 |
AU4397279(A) |
申请公布日期 |
1979.08.16 |
申请号 |
AU19790043972 |
申请日期 |
1979.02.06 |
申请人 |
COMPAGNIE DE SIGNAUX ET D'ENTREPRISES ELECTRIQUES AND SOCIETE;CREMER |
发明人 |
DENYS CHARLES MAURICE MARIE KLEIN;LOUIS REGIS TORRENT |
分类号 |
H05B41/392;H02M7/5387;H05B41/288 |
主分类号 |
H05B41/392 |
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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