At present, enterprises need to swipe their cards to get in and out of work, and they can only enter when they hear the sound of "drop", which is controlled by the induction coil of access control. Access control induction coil is divided into receiving coil and transmitting coil. Our ID card and IC card are receiving coils, and our access control system machine is...

Wireless charging technology has long been everywhere in our life. Wireless charging is very convenient. It can be charged directly on the charger, because it is welcomed by the majority of netizens. Of course, the emergence of wireless charging does not affect wired charging, because not every product can be charged wirelessly. Let's learn about the development tr...

When Xiaobian talks about induction coil, we all feel very familiar with it. The access control card should be familiar to everyone and used frequently and widely, especially in daily life and work. You need the access control card when you go home from work, and you also need the access control card when you go to work. The access control card is a very convenient...

What are the common types of coils? Let's briefly understand: 1. Single layer coil The single-layer coil is wound on the paper barrel or bakelite frame with insulated wires one by one. Medium wave antenna coil, such as transistor. Single layer winding is a winding with only one coil useful side embedded in each stator slot, so its total number of coils is only half...

1. Electromagnetic induction The alternating current with a certain frequency in the primary coil generates a certain current in the secondary coil through electromagnetic feeling, so as to transfer energy from the transmission end to the connecting end. At present, the most common charging treatment plan selects electromagnetic feeling. In fact, the electromagneti...

In short, the wireless charging receiving coil is to receive the current emitted by the wireless charging transmitting coil. When the transmitting coil emits the current, the receiving coil receives the emitted current to the current storage end. Features of these wireless charging receiving coils you may not know: The wireless charging coil uses the wireless trans...