发明名称 |
Power supply for a hot-filament cathode |
摘要 |
In accordance with one embodiment of the present invention, there is provided a switch-mode power supply to generate the heating current for a hot-filament electron-emitting cathode. The power supply directly couples, without an output transformer, the output from a full-bridge converter that operates at an output frequency in the range from ten Hz to ten kHz. A connection to a reference potential that minimizes the potential fluctuation of the cathode is provided by one of the direct-current inputs to the converter.
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申请公布号 |
US2004183470(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20030379057 |
申请日期 |
2003.03.04 |
申请人 |
GEISSLER STEVEN J.;KAHN JAMES R.;KAUFMAN HAROLD R.;SHAW DENIS M. |
发明人 |
GEISSLER STEVEN J.;KAHN JAMES R.;KAUFMAN HAROLD R.;SHAW DENIS M. |
分类号 |
H01J1/13;H01J27/08;H01J37/08;H02M7/5387;(IPC1-7):H05B37/02 |
主分类号 |
H01J1/13 |
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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