Tag: bypass capacitor

In the AC multi-stage amplifier circuit, due to the different gain and power of each level, the DC working offset value of each level is different. If the direct coupling between the stages will make the working offset value of each level mixed and cannot work normally. The AC and DC isolation feature not only solves the coupling of the inter-stage communication, but also isolates the inter-stage bias value from mixing.

The performance, shelf life, and service life of all capacitors depends largely on the environmental conditions in which they are exposed. Not only must the relationship of a single environmental factor to the capacitor, but also the effect of different combinations of these environmental factors be considered. The main environmental factors that affect the performance and life of capacitors are ambient temperature, humidity, vibration, shock, acceleration and atmospheric pressure, etc. The impact of these single environmental factors is briefly discussed as follows.

The appearance of the chip capacitor is made of ceramics. So it is known as multilayer ceramic chip capacitor (MLCC). Multilayer ceramic capacitors are made of parallel ceramic materials and electrode materials. So what are the functions of multilayer ceramic capacitors? The bypass capacitor is an energy storage device that provides energy to the local device. It can make the output of the regulator uniform and reduce the load demand. Like a small rechargeable battery, the bypass capacitor can be charged and discharged to the device.