Toward the green switching power supply
2008-07-31

                                                                           Toward the green switching power supply             When workings with electronics, you always need one basic thing; power. This power supply is great for powering all kinds of electronic projects.             Switching power supply is one of the most important variety kinds of the power supplies.             The so-called switching power supplies, is through use of electronic circuit-switching (square) shocks on the power circuit to achieve the conversion.             This approach has many advantages, the first regulator of the wide, in a certain range output voltage has nothing to do with the input voltage changes, the computer power in the 80 V-240 can work properly, and otherwise power is second to none. Second, high efficiency, switch shocks due to work, especially less heat loss, fever low. Third, the structure is simple compared with other similar power supply, switching power supply the size and weight much less. Therefore, in many electronic devices, switch-mode power supply is already quite common.             Switching power supply from the development history of speaking, has now come to the fifth generation. The first generation early 70, when the linear power from the power switch to start the second generation is beginning to UL-1976 Certification; third generation from the mid-1980s, switching power supply to the global GM, the development will not be able to supply constraints In North America or Japan, consider the input voltage to 85 ~ 265 V range, while the EU regulations and other regulations must be taken into account; fourth generation in the mid-90, the EU asked EMC (EMC), including the high-PFC Harmonic requirements; now entered a fifth-generation, in July 2006, the EU will enforce Rosh regulations, to limit the use of toxic substances, the new generation of power products in this way was born. It is mainly to environmental protection as the most important thing.            The energy crisis and lead to the abnormal climate change worsening environment, energy efficiency manufacturers have become the most concern. Many enterprises are committed to the production of recyclable; energy efficiency does not affect their performance products. Electronic products industries achieving the best energy efficiency to energy conservation areas have an important role. Electronic equipment can be in standby mode to minimize power consumption, consumption. This is the fifth-generation environment-friendly switching power supply design of the important thinking.             In order to design green switching power supply, we must to change the design thinking. In the design of switching power supply, we must consider the overall efficiency. To this end, the designer's attention must focus on equipment rather than wear and tear on energy efficiency.            Now, Let list a Green switching power supply as the following: *Green Switching Power Supply suits medical applications. January 9, 2007 - With external package measuring 5.91 x 2.36 x 1.32 in., APS100ESM Series 100 W Medical Approved Desktop Switchers draw minimal input power under no-load conditions to comply with appliance energy efficiency standards. Universal ac input with harmonic correction is featured to comply with EN61000-3-2 limits. With operating efficiency from 88-90%, series delivers output up to 100 W with single output voltages of 12/15/19/24 VDC.                                                                         

                                                                           Green Switching Power Supply                                                                                 Suits medical applications