ABB 1MRK000614-AB CPU main board

ABB 1MRK000614-AB CPU main board New in stock

Item NO.:
1MRK000614-AB
Payment:
T/T
Shipping Port:
Xiamen China
Lead Time:
IN STOCK
Order(MOQ):
1

Product Detail

Sales manager: Vicky.xia
Email: vicky@kerienplc.com
Mob(Whatsapp/Wechat) :+ 86 13695017671
QQ：259680581
Skype :+ 86 13695017671
our website : https://www.kerienplc.com/

The rapid development of the communication industry has greatly promoted the development of communication power sources. The high-frequency miniaturized switching power supply and its technology have become the mainstream of modern communication power supply systems. In the field of communication, rectifiers are usually referred to as primary power sources, while direct current to direct current (DC/DC) converters are referred to as secondary power sources. The function of a primary power supply is to convert a single-phase or three-phase AC power grid into a nominal 48V DC power supply. Currently, in the primary power supply used in program controlled switches, the traditional phase controlled regulated power supply has been replaced by high-frequency switching power supply. High frequency switching power supply (also known as switching rectifier SMR) operates at high frequencies through MOSFETs or IGBTs, and the switching frequency is generally controlled within the range of 50-100kHz, achieving high efficiency and miniaturization. In recent years, the power capacity of switch rectifiers has been continuously expanding, and the single machine capacity has expanded from 48V/12.5A and 48V/20A to 48V/200A and 48V/400A.
Due to the wide variety of integrated circuits used in communication equipment and their varying power supply voltages, high-frequency DC-DC isolation power modules with high power density are used in communication power supply systems to convert the intermediate bus voltage (usually 48V DC) into the required various DC voltages. This can greatly reduce losses, facilitate maintenance, and facilitate installation and increase. Generally, it can be directly installed on a standard control board, and the requirement for secondary power supply is high power density. Due to the continuous increase in communication capacity, the capacity of communication power supply will also continue to increase.

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