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目前彩电开关电源中被广泛应用的STR系列(日本三肯公司生产)厚膜集成(IC)电路,其制造工艺采用在陶瓷电路基板上用中、小功率晶体管和一些电阻(部分型号内含少量电容)构成电压基准、误差放大和脉宽调制等小功耗单元电路,即控制电路芯片,而大功率开关管则直接镶制在金属底板上,以利散热。大
STR series (Japan Sanken company) thick film integrated circuit (IC) widely used in color TV switching power supply, the manufacturing process used in the ceramic circuit substrate with medium and small power transistors and some resistors (some models contain a small amount Capacitor) constitute the voltage reference, error amplification and pulse width modulation and other small power unit circuit, that is, control circuit chip, and high-power switch tube is directly mounted on the metal floor, in order to facilitate heat dissipation. Big