A hi-tech enterprise producing power source products, the Wocen Power Source Equipment Co., Ltd. introduced German Technology and in cooperation with it to produce and sell “Wocen” brand power source series products. Located in the elegant-environment Suzhou State-level Development Zone of Suzhou (Singapore) Industrial Park, Wocen is one of the top-grade power source name-brands in the country, and an advocator and forerunner of the green, environment-protecting, energy saving and high-intellect power source products. The Wocen-BP7 series having recently been put on market by Wocen is a environment-protecting, energy-saving and high-intellect power source representative product; the Wocen-BP7 is of digital circuit, digital tuning and LCD that can be connected directly with a computer to carry out data setting and controlling, and can compile a number of data outputs (such as of voltage, frequency, time and so on), being usable in top-grade laboratories and for controlling a number of power sources, so as to make your work more swift and convenient. Once being put on market, the Wocen-BP7 has been used in factories and laboratories of Toshiba Electronics, Samsung Electronics, Siemens, Philips, etc. and has been receiving widespread praises. Wocen also has got a relatively significant breakthrough in large power DC power source, and the largest current of Wocen-produced DC power source can reach 12,000A, thus successfully filling the domestic blank of such products, having solved a difficult problem that cannot be solved by a switching power source, and also solving the difficult problem of many enterprises in being unable to carry out service life testing of products out of having no large-power DC power source. Relying on its powerful scientific research and manufacture capacity, Wocen has become an enterprise having got in cooperation with army units, and Wocen-produced 400Hz mid-frequency power source product made the co. an only designated supplie