| 术语 | logic pulser |
| 释义 | logic pulser 逻辑脉冲笔［发生器］;［逻辑脉波器］ 1. A device that briefly drives circuit nodes to the logic state opposite their present states. Pulse widths are usually tenths of a microsecond—short enough to prevent destroying the logic under test. Since logic pulsers can not drive a point tied directly to the power supply voltage or grounded to the opposite state, placing a pulser and a probe on one point and finding no change in state on application of a pulse can uncover those short-circuit conditions and eliminate many gate faults from suspicion. 能驱动电路上一些节点变成当前状态的反态的一种设备。脉冲宽度通常为几十分之一微秒, 这足以防止破坏被测电路的逻辑状态。因为逻辑脉冲发生器不能直接驱动与电源线或接地线 相连的点到它的反态,所以在使用时,先放一发生器和探针在节点上,然后检测点的状态变化, 以避免发生短路,从而消除烧坏 门电路的可能。 2. A hand-held item of test equipment that is often applied in conjunction with a logic probe in digital electronic systems. The logic pulser generates pulses, which can be traced through the circuit under test by means of the logic probe.The logic pulser can be used to generate a single pulse, a burst of pulses or a continuous stream of pulses. 一种手持式测试设备,常与逻辑笔在数字电子系统中合用。该逻辑脉冲笔产生脉冲,可以用逻辑笔 在待测电路中全面追踪。逻辑脉冲笔可用于产生单个脉冲、脉冲串或连续脉冲流。 |
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