发明名称 Frequency dependent x-ray protection for a multimedia monitor
摘要 <p>A frequency compensation circuit influences an X-radiation protection (XRP) circuit in a high voltage regulator circuit for a cathode ray tube (CRT) to operate properly under varying frequencies of voltage energizing a high voltage transformer. The frequency compensation circuit includes an input to a source of first voltage related to a high voltage output of the high voltage regulator circuit, a voltage source generator responsive to a high voltage generator frequency of the CRT. A voltage controlled circuit is responsive to the voltage source generator for controlling conveyance of the first voltage to the XRP circuit so that a relatively constant proportion of the high voltage output is reported to the XRP circuit under varying high voltage generator frequencies. &lt;IMAGE&gt;</p>
申请公布号 EP1098427(A1) 申请公布日期 2001.05.09
申请号 EP20000403009 申请日期 2000.10.27
申请人 THOMSON LICENSING S.A. 发明人 JACKSON, DAVID ROSS
分类号 H04N3/18;B29C55/00;G09G1/00;H02M1/00;H02M1/32;H02M3/28;H04N3/16;H04N3/27;(IPC1-7):H02M1/00 主分类号 H04N3/18
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