发明名称 |
MONITORING DEVICE DOR DRIVE AMPLIFIERS |
摘要 |
A monitoring device in integrated drive amplifiers intended to be driven by digital signals includes fault detection circuits giving a fault signal for such as excess temperature, overcurrent, or interruption and shortcircuiting in the load circuit. The input of the drive amplifier is connected to the output of a D-type flipflop (13) having a data input (D) and a clock input (C) intended for connection to a digital control system. Between the data input (D) and a potential corresponding to a logical ZERO there is connected a circuit (22,23) adapted for connecting the data input (D) to said potential during the interval between the operation signals when a fault signal is present. |
申请公布号 |
GB2157104(B) |
申请公布日期 |
1987.07.01 |
申请号 |
GB19840008238 |
申请日期 |
1984.03.30 |
申请人 |
* ERICSSON TELEFONAKTIEBOLAGET L M |
发明人 |
KURT ALLAN INGVAR * NILSSON |
分类号 |
G01R31/28;H03F1/52;H03F3/347;H03K17/08;H03K17/082;H03K19/003;(IPC1-7):G08B1/08;H02H1/00 |
主分类号 |
G01R31/28 |
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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