Mar. 06, 2023
The power supplies used by electronic products are roughly divided into two types: alternating current and direct current.
So what is alternating current and direct current?
Alternating current refers to the current whose size and direction change with time; while the magnitude and direction of direct current is constant, which means it does not change with time, and the magnetic field is relatively stable, which is suitable for some more important control systems, such as substations, mobile communication base stations, etc.
Our living electricity and household appliances use alternating current. This is determined by the characteristics of direct current and alternating current.
The magnitude and direction of direct current are constant and do not change with time, while our domestic electricity is provided by generators in power plants, which are far away from our living areas, and they transmit electric energy through long cables.
In the process of long-distance power transmission, the longer the distance, the greater the resistance, which will cause a lot of energy loss when the power is transmitted, and the transmitted voltage is getting smaller and smaller. It is necessary to increase the output voltage to reduce the power generated during the transportation. loss. However, the magnitude of direct current is constant, and the magnitude of the voltage cannot be changed through a transformer, so it is not suitable for long-distance power transmission. The magnitude of alternating current can change with time, and the voltage can be changed through a transformer, so it is suitable for long-distance power transmission.
After the alternating current transmits electric energy for a long distance, the high voltage is converted into a suitable living voltage for our use through a transformer at the terminal, which is why our daily electricity is alternating current.
We're JYH HSU(JEC) Electronics Ltd (or Dongguan Zhixu Electronic Co., Ltd.), an electronic components manufacturer.Our factories are ISO 9000 and ISO 14000 certified. If you have technical questions or need samples, please contact us.
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