本设计实例描述了方便的有两种工作模式的通断检测器:这种检测器在两个探针间检测到通路时会发出声响,在检测到断路时也会发出声音。后一功能可用来检测不连续的线缆断开。响应必须足够快以允许在100个针脚间试测探针,并迅速找到通路针脚。这种检测器也可检查到两个导体间的微法级或较大的电容。 This design example describes a convenient on-off detector with two modes of operation: This detector beeps when it detects a path between two probes and also sounds when an open circuit is detected. The latter function can be used to detect a discontinuous cable break. The response must be fast enough to allow probing of the probe between 100 pins and quickly find the access pins. This type of detector can also detect micro-scale or large capacitance between two conductors.