发明名称 |
TELEVISION POWER SUPPLY SHUTDOWN CIRCUIT |
摘要 |
<p>In a power-up mode, the power supply of a televison receiver generates the normal operating level of an energizing voltage. An overload detector generates a first control signal to shutdown the power supply and remove the energizing voltage when an overload condition occurs. A control circuit periodically samples the level of the energizing voltage. When the level is lower than normal, the control circuit generates a second control signal that maintains the power supply in the shut-down mode so as to prevent the power supply from attempting to restart. A third control signal inhibits the generation of the second control signal when an input alternating current voltage that supplies the power to the power supply suffers a voltage drop or blackout for only a short duration.</p> |
申请公布号 |
CA1261058(A) |
申请公布日期 |
1989.09.26 |
申请号 |
CA19860505989 |
申请日期 |
1986.04.07 |
申请人 |
RCA LICENSING CORPORATION |
发明人 |
TESTIN, WILLIAM J.;FRENCH, MICHAEL P. |
分类号 |
H04N5/63;(IPC1-7):H01J29/70 |
主分类号 |
H04N5/63 |
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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