The U.S. subsidiary of Technitrol Pulse launched the mini Gigabit transformer module, compared with the original module, the volume reduced by 50%, easy circuit engineers arrange more elements in PCB, or narrow the area of PCB. This is the development trend in the miniaturization of electronic products, transformer manufacturers in response to market demand, the transformer chip miniaturization to replace the traditional transformer, promote the development of transformer to the high frequency, low loss, small size, low price direction.
To meet the market demand, the development of small transformer in adversity _ small transformer positive high frequency, low loss, small size, low price direction. _1
Small transformers are high frequency, low loss, small size, low price direction.
Small transformer has a broad market prospects, only the Chinese market, is expected to 2010, the total output of small transformers will reach 7 billion, the total output value of 70 billion yuan. In the face of huge potential market, many enterprises to enter the field of small transformers, making the market competition intensified.
Therefore, smooth development is not a small transformer industry, especially with the rising prices of raw materials, has brought uncertainty to the small transformer industry, a large number of manufacturing enterprises are facing the crisis of development. How to stand in an invincible position in the fierce competition, how to reduce the cost pressure to enhance the competitiveness of all small transformer manufacturers are facing the problem.
International competition focus
In order to meet the requirements of consumer electronics and communications products, major international transformer manufacturers in the production of miniaturization, high power and high efficiency products, small volume, low noise and high reliability of the transformer has become the mainstream market products, widely used in notebook computer, mobile phone, PDA and other equipment.
Gigabit is a surface mount transformer module, using BGA encapsulation technology, and in order to facilitate the PCB board in the mount, the solder bumps (Solder bumped) processing and testing, application scope to the network power supply (PoE), small office and home office (SOHO), a hub, router and switch computer etc., telecom and network.
In the Gigabit module, the size of H5400NL Quattro and H5401NL four port module is 29 x 17.5 x Dos, H5200NL 11mm and H5201NL dual port module with a size of 14.7 x 17.5 x 11mm. The company says the four port module is installed at the rear of the 2 * 2RJ45 connector, making the layout of the circuit board more easily and more compact.
The Gigabit module is guaranteed to meet the 0.005 inch (5 mm) coplanar. According to Pulse China, vice president of Tso Colman introduction, Gigabit modules connected to each other in the solder block grid array to support high input / output (I/O) density, suitable for small area, and can be used together with the SMT assembly.
As the core component of the power supply design, small transformer directly affects the operation, security and EMI efficiency of the power supply. To this end, the Gigabit module in the Quattro four port and Dos two port module to provide circuit isolation, so that it is protected from the damage to the shock, but also to reduce noise and electromagnetic interference, in order to maintain the integrity of the signal. These RoHS and IEEE 802.3 standard specifications have also been tested and certified by the top Gigabit IC vendors.
It is reported that the Quattro H5400NL Pulse and H5401NL four port, H5200NL Dos and H5201NL two port discrete isolation transformer module can be used with the E5908-57A132-L and E5908-25A1J5-L without the built-in filter. When the bulk purchase of 10000, Quattro and Dos transformer module can supply the tray, the price of each port is $2.19.
In response to the trend of miniaturization of transformer products, LEM company also introduced a compact TT series clamp type AC current transformer, it is said that these small transformer due to the ferrite core material innovation, can provide high accuracy and excellent linearity and very low phase shift. TT series transformer with magnetic core material is a new kind of ferrite magnetic permeability improved, can achieve accurate measurement of AC signal in a wide frequency range including 50/60Hz in. According to the introduction, in the nominal current conditions, the absolute accuracy of the TT series transformer is higher than 1%, while the lower the accuracy of the primary current conditions higher.
TT series converter provides a measure of the primary current of two ranges, respectively is 50A (TT 50-SD) and 100A (TT 100-SD), with a 3000:1 ratio, low output current of TT 50-SD and TT 100-SD (respectively less than 16.66 mA and 33.33 mA). Coupled with the internal output protection circuit, to ensure safe and easy installation, the installation will not stop running, because when the converter is opened without generating high voltage surge, different from the 1A and 5A output products. The TT series current transformer is suitable for distributed measurement system, and it can be adapted to the existing installation and non interruption device.
And small transformer manufacturers from Japan also accelerated the pace of development, to the small transformer Market force. With digital cameras and other portable electronic products to small and thin, the electronic components to achieve small and ultra low thickness SMD. Among them, the digital camera, the phone is equipped with the flash part of the priority to save space, in the circuit structure, through the integration, reducing the number of components. For example, Japan launched a free base, neturen small ultra low thickness transformer step-up transformer C-KT series: flash. This series of transformer has been composed of 6 terminal traditional products for the development of the 4 terminal, multi terminal base resin removal required, by directly setting up terminals on ferrite core, to achieve a small, high volume products. It is reported that the C-KT series of changes