In the ship's high-power rectifier, the working current of the rectifier element is used as bridge rectification. The forward average current passing through each bridge arm rectifier element. Under normal circumstances, the forward average current of the rectifier element should be 152 times the actual working current In this way, a rectifier element with a forward average current of 300A can be selected.
However, considering the harsh environment of the ship, the forward current of the component should be derated to ensure its reliability. Therefore, the forward average current of the element is selected as 500A. Considering that an abnormal overvoltage may occur on the secondary side of the transformer, the reverse repetitive peak voltage of the rectifying element is selected as 1200V.
Rectifier components are available in two forms: thyristor and rectifier diode, each with its own advantages and disadvantages. The output voltage of the former is adjustable, which is conducive to ensuring the stability of the DC output voltage, but lacks the experience of using it on board. The latter is mature and reliable, but it is not adjustable. The output DC voltage fluctuates with the fluctuation of the electrical insulation ladder on the AC side ship.
The DC power of the load is provided by the undisturbed switching of the rectifier and battery pack. When the voltage fluctuation of the rectifier is large or even lower than 24V (the fluctuation of the ship's electricity is basically a voltage drop), the battery pack is automatically turned on, which will not affect the reliability of the power supply. Therefore, the rectifier element selects a rectifier diode. You can choose ZP50012, 500A, 1200V rectifier diode. The radiator is made of aluminum profile structure, and the rectifier components are manufactured according to the standards of military products.
In-ear earphones, also known as ear canal earphones, are used inside the human hearing organs and, according to their design, sealing the user's ear canal. In-ear earphone is inserted into the ear canal with a gel plug, to obtain better airtightness, on the basis of the ordinary earphone, which greatly increasing the performance of in-ear earphone.
Advantages:
1: Reduce the interference of external noise on music.
2: Provide a closed environment that greatly reduces leakage. From a practical point of view - in a noisy environment,you can enjoy music with a relatively low volume.
3:Increase the low frequency texture and volume.
4:Adding to the performance of the music details.
The catheter of these headphones are connected to the earmuffs into the front half of the ear canal to create a sealed listening environment. And many high-end in-ear earphones even custom-made eardrums for the best comfort and perfect sound insulation.
Earbuds Earphones,Tws Earphone,Voice Changer Earphone,In Ear Headphones With Mic
Shenzhen Linx Technology Co., Ltd. , https://www.linxheadphone.com