Ilsco Terminal block switch mode power supply technology is the development of power electronic devices in the field, promote switching power supplies each year to more than two-digit growth rates toward the light, small, thin, low noise and high reliability and anti-interference of direction. Can be divided into two kinds of AC/DC and DC/DC switching power supply, DC/DC converter module is implemented, and design technology and production technology has matured and standardized in both at home and abroad, and has been recognized by the user, but the modular AC/DC, because of its own characteristics making the module is in the process of, faced more complex manufacturing technology and process issues. Following respectively on the structure and properties of two types of switching power supply to narrate 1 PIN high frequency switching power supply module

Communications industry rapid development greatly promoted the development of Telecom power supply. Miniaturization of high-frequency switching power supply and its technology has become the mainstream of modern communication power supply system. In the field of communications, Rectifier is typically referred to as a power supply, DC-DC (DC/DC) converters are called secondary power supply. Once the power is single phase or three-phase AC power grid transformation Cheng Biao says 48V DC power supply. Current PBX using a power source, traditional phased regulated power supply has been replaced by high-frequency switching power supply, high-frequency switching power supply (also known as the SMR rectifier switch) through a MOSFET or IGBT high frequency, switching frequency control in the 50-100kHz range, to achieve high efficiency and miniaturization. 　　In recent years, switching rectifier power capacity expanded, stand-alone capacity from 48V/12.5A, 48V/20A extended to 48V/200A, 48V/400A. Due to integrated circuits used in a wide range of communication equipment, the power supply voltage is varied, in communication power supply system used in high power density and high frequency DC-DC converter isolated power supply module from the intermediate bus voltage (48V DC) needed to transform into a variety of DC voltage, which can greatly reduce the loss, easy maintenance and installation, increase very convenient. Generally can be directly installed in the standard control panel, high power density power requirements are for the second time. Communication capacity continues to increase, communication power supply capacity will also be increased.
2 DC-direct current (DC) converters

DC/DC converter to a fixed DC voltage into DC voltage variable, this technology is widely used in trolley buses, subway trains, electric continuously variable transmission and control, at the same time that these controls are accelerate the performance of smooth, fast response, and at the same time receive energy-saving effect. Replace rheostat can save energy for DC chopper (20~30)%. 　　DC chopper can not only tap (switch mode power supply), can also play an effective role of inhibition of power system harmonic current noise. Secondary power supply of communication power DC/DC converter has been the commercialization, modules using high frequency PWM technology, switching frequency at around 500kHz, the power density is 5W~20W/in3. With the development of large-scale integrated circuits, power supply miniaturization of module, so we should constantly improve the switching frequency and new circuit topology, now has some company to develop and produce a zero-voltage zero-current-switching and switch of the second power module, power densities have significantly improved.

Ilsco Terminal block application in the power supply module in the unanimous praise!