Sometimes we will encounter a rather special situation, that is, after the performance of the capacitor capacitance that is worn, but after the failure and showed no breakdown, with a multimeter test it does not show the breakdown of the characteristics of electricity The DC voltage across the measu

From full customization to today's COTSPrevious views on the continued use of hybrid circuits and modules in military systems remain valid. It is important, however, to recognize that commercial pressure on military equipment manufacturers is greater than ever, especially in terms of costs and timin

SafetyObsolete elimination of products is a very serious problem for the military industry. 30 to 50 years of project life is common, so military and aerospace equipment suppliers are constantly looking for ways to reduce risk. Hybrid circuits and modules have been a way of trying to isolate the rap

PerformanceMilitary and aerospace systems are generally designed on the basis of modular subsystems. For example, field replaceable units (LRUs) simplify service and operational support. LRU interconnection relies on standards such as MIL-STD-1553 bus interfaces. Implementing these functions in hybr

IntegrationDuring the period covered in this article, ASIC technology brought about a revolution in the industry. At first, hundreds of gate arrays provided the military with a way to improve digital integration, and with the rapid increase in gate density and the improvement of development tools. T

When the capacitor is leaking, the insulation performance between the two poles of the capacitor is decreased, the leakage resistance exists between the two poles, there is a DC current passing through the capacitor, the straightness of the capacitor becomes worse, and the capacity of the capacitor

If the capacitor is broken down, it will also lose the function of the capacitor, because there is a path between the two pins of the capacitor, the direct action of the capacitor disappears, and the DC circuit of the circuit fails, thus affecting the AC working state.Solution: replace the breakdown

Problem description: if the capacitor has an open-circuit fault, then its line appears to be broken, lost capacity, that is, without the role of the capacitance. However, it should be noted that the capacitor has an open-circuit fault, in different circuits, the reason is different, need to be speci

No vibration. The reason for underexcitation is that the excitation power is not enough or the starting time is too long. This phenomenon usually shows that the crystal oscillator does not work after the reset or the crystal oscillator does not work in low power consumption mode, but a tap of th

Quartz crystals cannot be used in RC sinusoidal oscillation circuits. Because the crystal impedance is close to zero when the quartz crystal oscillator is at the series resonance point, the resonant frequency of the LC parallel circuit is close to the inherent resonant frequency of the quartz cr