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三、保护电路该机芯的保护电路可归纳为两种形式:一种是通过可控硅Q742和I902使I901内部进入保护状态;另一种是通过Q953和I902也使I901内部进入保护状态,来实现电路保护功能。可参见图3。 1.+B电源过压保护
Third, the protection circuit The movement of the protection circuit can be summarized in two forms: one is through the SCR Q742 and I902 to I901 internal access to the protected state; the other is through the I951 and I902 also make I901 internal protection, To achieve circuit protection. See Figure 3. 1. + B power supply over-voltage protection