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一、引言 开关电源自采用专用IC以来,设计、制造成本大幅度下降,可靠性大幅度提高,并一跃成为电子工业中很有生气的领域之一。世界各大电源生产厂家纷纷将资金、人力诸方面转向开关电源的研究和生产。要节约能源,提高效率,就必须发展开关电源。80年代美国Silicon-General公司率先开发出SG系列脉宽调制型开关稳压器集成电路产品,其它公司也相继推出类似产品。IC的问世促进了开关电源的研制、生产及应用。
First, the introduction of switching power supply since the use of dedicated IC, design, manufacturing costs dropped significantly, greatly improved reliability, and has become one of the very angry areas in the electronics industry. The world’s major power manufacturers have to capital, manpower, all aspects of switching power supply research and production. To save energy and improve efficiency, we must develop switching power supply. In the 1980s, Silicon-General Corporation of the United States took the lead in developing the SG series PWM integrated switching regulator products, and other companies have also launched similar products one after another. The advent of IC to promote the development of switching power supply, production and application.