DC equivalent circuit analysis:When analyzing the principle of the circuit, it is necessary to find out the DC path and the AC path in the circuit. DC path refers to the static bias of each semiconductor transistor and integrated circuit when there is no input signal.That is, their static operating

We have a precise understanding of the role of air conditioning capacitors, hope to be able to help the majority of maintenance personnel. I hope I can help you solve some problems with capacitors.The reliability of capacitors depends not only on the reliability of the capacitors themselves. And is

Capacitor detection methods are divided into three main categories: variable capacitor detection, electrolytic capacitor detection, fixed capacitor detection. Detection of variable capacitors A .with the hand gently rotates the axis, should feel very smooth, should not feel sometimes lose when tigh

Detection of fixed capacitors A .Detection of small capacitors below 10pF because the capacity of fixed capacitors below 10pF is too small to be measured with a multimeter, it can only be qualitatively checked whether it has leakage, internal short circuit or breakdown phenomenon. In the measurement

Detection of electrolytic capacitors A .Because the capacity of electrolytic capacitance is much larger than that of ordinary fixed capacitance, therefore, when measuring, we should choose suitable measuring range for different capacity. According to the experience, the capacitance between 47 μ F an

Air conditioning has become an indispensable necessity in people's life. With the popularization of air conditioning has expanded the scope of use, air-conditioning capacitance, all kinds of air conditioning failure are also increasing. Today share with you is a part of the air conditioning, the rol

Polypropylene film for capacitors:Polypropylene film for capacitor is at the heart medium of film capacitor, AC motor capacitor. The capacitors are marked by excellent electrical properties, good reliability, high temperature resistance, wide range of capacity, small volume, good self-healing and lo

Air conditioning has become an indispensable necessity in people's life. With the popularization of air conditioning has expanded the scope of use, air-conditioning capacitance, all kinds of air conditioning failure are also increasing. Today small to share with you is a part of the air conditio

The key point for James Tour to use this material to fabricate double-layer capacitors is to add boric acid to the polyimide film in advance. In this way, compared with without boric acid, the electric double-layer capacitance is raised to 3 ~ 4 times, and the discharge capacity is increased to 5 ~

In May 8th 2017, Secretary General Chen Zhongyi, Chairman of the Organic Film Professional Committee, Wu Jianming, Vice President of Xiao Changzheng, Chairman of North Yuan Niu Fuquan and General Manager of Chen Jingqiu. Special trip to Beijing Tsinghua University Department of Electrical Machinery,