发明名称 |
LATCHING RELAY DRIVE CIRCUIT FOR USE IN TELEPHONE SETS |
摘要 |
<p>In a circuit for driving a latching relay for use in a telephone set, a capacitor is charged from a battery, and when the capacitor is charged to a predetermined value, the capacitor is disconnected from the battery. Thereafter the latching relay is driven by the discharge current of the capacitor. With this circuit, it is possible to prevent unnecessary consumption of the battery.</p> |
申请公布号 |
CA1229443(A) |
申请公布日期 |
1987.11.17 |
申请号 |
CA19850477411 |
申请日期 |
1985.03.25 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
NAKAYAMA, YASUNOBU;SATO, YASUJI |
分类号 |
H04M1/00;H01H47/32;H04M1/26;H04M1/2745;(IPC1-7):H04M1/00 |
主分类号 |
H04M1/00 |
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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