中英文翻譯資料----開關(guān)電源發(fā)展軌跡-文庫吧
2025-04-17 17:27 本頁面
【正文】 Rectifier SMR) by substituting, and started in the office automation equipment in the applications. Industrial applications, in the boiler flame control, protection, laser, color TV, the filamentemission current regulation, ioninjection machine, Luwu Deng control systems in both applications. The 1990s, China39。s also developed a number of new nonclearance for power, the typical examples are as follows: 1. Satellite switching power supply. The East is Red on the 3rd munication satellite, Fengyun 1, 2 meteorological satellite applications are the switching power supply. Features: Multioutput, nonmaintenance, longterm requirements do not change the performance, set up redundant modules, high reliability, EMC meet the space environment conditions, high efficiency, small light. 2 longrange rocket control system for DCDC switching power supply to launch the process of highly reliable. 3 1000kW traction converter 4500 V/1200A GTO gated 250 W switching power supply. 4 40kW solid pulse laser soft switching power supply. 10 kw with four more resonant full bridge ZVS converters parallel. 5. Welder doubleIGBT forward to the voltage conversion for a pulse modulation (ZVTPWM) soft switching power supply. Output 20 kW, 500A, switching frequency of 40 kHZ, the efficiency of 92%. Is characterized by frequent changes in the scope of the load, poor working environment. Impact on the current power demand, dynamic characteristics, and no overshoot, load affecting softswitch nature. 6. Substation in the current operating system switching power supply. For the protection and automatic devices and battery charging. Surge instead of SCR system, the output 10 A, 180 ~ 286V. Main switch IGBT or effective power MOSFET. 7. Singlephase and threephase rectifier high power factor (with the number of active power correction). One can see that 20 of 30, China39。s switching power supply applications and technical performance of great progress, and the family foundation is closely related to industry and enhance the national strength, and international advanced technology affecting the power switch. China fully demonstrated the power of talent and technical personnel of the entrepreneurial spirit of arduous struggle. In the 1990s, small and mediumsized (500 W below) ACDC and DCDC switching power supply is characterized by: high frequency of (switching frequency of 300400 kHZ) to achieve high power density, a small amount of light。 to efficient and reliable。 Lowcost, low output voltage (≤ 3 V。 AC input with a few highpower, etc. In the next five years will continue along these directions. Main technical marks from a technical pe
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