Knowledge

Many electronics enthusiasts and repair technicians worldwide face a common challenge when troubleshooting circuits: how to test capacitors effectively. Capacitors, including electrolytic and ceramic types, are among the most commonly used and easily aged components in electronic devices. A faulty capacitor can cause minor malfunctions or even serious damage, such as burning out the motherboard or [...]

Working principle of RC multivibrator circuit A multivibrator (Multivibrator) is a self-excited oscillator capable of generating square waves, also known as a rectangular wave generator. It uses deep positive feedback and RC coupling to make two electronic devices alternately switch between conducting and cutoff states, producing a square wave output. In other words, the circuit’s output [...]

1.Width Expansion of Capacitor Material Metals Width spread refers to the change in the width of a rolled piece during the rolling process, also known as transverse spread. It affects the non-uniformity of deformation in the width direction. There are two methods to represent width spread: absolute width spread and relative width spread. Absolute width spread [...]

Plastic deformation of metal is uneven deformation. This unevenness will have a significant impact on the structural integrity of the material and the capacitor performance. An object is divided into many small grids, called coordinate grids (see Figure 1). If the height before deformation is H and the width is B, the height of each grid [...]

1.Operation and maintenance after the shunt capacitor tripping During the operation of the DC system, if the AC filter or shunt capacitor tripping and the stage III directly trips due to a fault, the operator should carry out on-site disposal in an orderly manner according to the following points: (1) After the faulty filter or shunt capacitor [...]