1. Factors affecting transformer noiseThe noise generated by the iron core is mainly due to the small change in the size of the silicon steel sheet under the action of the alternating magnetic field. Since the change period of magnetostriction is half of the power frequency, the vibration of the transformer body caused by magnetostriction is based on twice the power frequency, so the vibration of read more
1. Some friends will ask how the voltage regulator is regulated? The structure of the voltage regulator is the same as that of the audio transformer, but the iron core is made into a toroidal coil and wound around the toroidal iron core. The secondary coil tap uses a slidable brush contact to make the contact slide annularly along the surface of the coil to achieve a smooth voltage regulation effe read more
A transformer is a common electrical device that can be used to convert an alternating voltage of a certain value into an alternating voltage of another value of the same frequency. A step-up transformer is a transformer that converts a low-value alternating voltage into another high-value alternating voltage of the same frequency. The so-called step-down transformer is to convert the high voltage read more
Static electromagnetic devices that convert electrical energy and transfer electrical energy from one circuit to another are called toroid transformers. EI transformer is one of the electronic transformers, which is defined according to the shape of the iron core. Because the iron core of EI transformer is superimposed by "e" and "I", it is called EI transformer. EI transformer read more
Knock on the key point - the working principle of small transformers!The working principle of the small power transformer has been touched in our high school textbooks. It is one of the crystallizations of human wisdom, which represents that human beings use electric current to transform all aspects of our daily life. Let's take a look at how it is achieved~The transformer can only input AC vo read more
