Communication with the high-frequency switching power supply.

Communication with the high-frequency switching power supply.

 

The rapid development of the communications industry a great impetus to the development of communication power. Miniaturized high-frequency switching power supply and modern communications technology has become the mainstream of the power supply system. In the communications field, often referred to as a power rectifier, while the DC - DC (DC / DC) converter is called the secondary power supply.

 

Power is the role of a single or three phase AC power is converted into a nominal 48V DC power supply. Currently in a power supply with a program-controlled switches, the traditional phase control type power supply has been replaced by high-frequency switching power supply, high frequency switching power supply (also known as Switch Rectifier SMR) through the MOSFET or IGBT in the high frequency, switching frequency general control in the 50-100kHz range, high efficiency and miniaturization.

 

In recent years, switching rectifier power capacity expanded from a single capacity has 48V/12.5A, 48V/20A expanded to 48V/200A, 48V/400A. Communications equipment for integrated circuits used in a wide range of its power supply voltage varies, the communication power supply system of high frequency high power density DC-DC isolated power supply module, from the middle bus voltage (usually 48V DC) transform into the various DC voltages required, this would greatly reduce the wear and tear, easy maintenance, and installation, to increase very convenient.

 

General can be directly installed in the standard control panel, the secondary power supply requirements of high power density. Due to the increasing communication capacity, communication power supply capacity will also increase.

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