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佳能FAX-450型传真机的电源电路,如图1所示(见下页)。如图1该电源系统主要由浪涌电流抑制、主开关变换、直流电压输出、稳压控制以及自动保护电路等部分组成。具体电路工作原理与过程如下:1.浪涌电流抑制电路的工作原理与工作过程浪涌电流抑制电路主要由CR1、R2、T1的⑤～⑥绕
Canon FAX-450 fax machine power circuit, shown in Figure 1 (see next page). Figure 1 The power system mainly by the inrush current suppression, the main switch change, DC voltage output, voltage control and automatic protection circuit and other components. Specific circuit working principle and process are as follows: 1. Inrush current suppression circuit works and working process Surge current suppression circuit mainly by CR1, R2, T1 ⑤ ~ ⑥ around