发明名称 |
High pressure sodium lamp ballast circuit |
摘要 |
A ballast circuit for limiting the kilovolt-ampere rating of a ballast required to operate a high pressure sodium lamp during starting, hot restart and lamp out conditions. The ballast circuit includes a voltage limiting or clamping circuit across the secondary of a ballast transformer which responds to the voltage level and the rate of change of voltage across the secondary to activate a switch during each half cycle that the secondary of the ballast transformer goes into saturation.
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申请公布号 |
US4339695(A) |
申请公布日期 |
1982.07.13 |
申请号 |
US19800156766 |
申请日期 |
1980.06.05 |
申请人 |
UNICORN ELECTRICAL PRODUCTS |
发明人 |
SIGLOCK, JOHN V. |
分类号 |
H05B41/04;(IPC1-7):H05B41/16 |
主分类号 |
H05B41/04 |
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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