发明名称 |
Apparatus for operating discharge lamps |
摘要 |
An apparatus for operating discharge lamps with a stable electric current supply and minimal dimensional area requirements. The apparatus includes an input power source coupled across a capacitor, establishing a first loop circuit. A discharge lamp may also be connected across the capacitor, thereby forming a second loop circuit. A first switch repeatedly turns ON and OFF, making and breaking the first loop circuit at a first frequency, and thereby charges the capacitor. A second switch repeatedly turns ON and OFF, making and breaking the second loop circuit at a second frequency, and thereby discharges the capacitor through the discharge lamp. A control mechanism controls the first and second switches for supplying a predetermined current to the discharge lamp for flickerless operation.
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申请公布号 |
US5444310(A) |
申请公布日期 |
1995.08.22 |
申请号 |
US19940272614 |
申请日期 |
1994.07.11 |
申请人 |
MATSUSHITA ELECTRIC WORKS, LTD. |
发明人 |
KATAOKA, SHOZO;OHNISHI, MASAHITO |
分类号 |
H02M3/07;H05B41/282;(IPC1-7):H05B37/00;H05B39/00 |
主分类号 |
H02M3/07 |
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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