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日本东芝ＳＡＬ - 32Ｂ型便携式Ｂ超由于体积小 ,结构紧凑 ,机内散热效果较差 ,且便于携带外出巡诊 ,易使电路板松脱和积尘 ,加之外部电网电压波动大 ,造成本机电源电路故障较多。电源电路分析 :本机电源采用开关式稳压电源电路 (图略 ) ,它由初级输入电路和直流稳压输出电路两
Toshiba SAL - 32B portable B - due to small size, compact structure, poor cooling effect inside the machine, and easy to carry out the tour, easy to release the circuit board and dust, coupled with external power grid voltage fluctuations, causing the local power More circuit failures. Power Circuit Analysis: The power supply using switching power supply circuit (Figure omitted), which consists of primary input circuit and the DC voltage regulator output circuit two