Purpose: General purpose switching and muting, LCD back-lighting, supply line switchingcircuits.
用途： 用于一般静音开关，液晶显示器的背景照明，线性开关电源。
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Shannon 's 1938 master's thesis, A Symbolic Analysis of Relay and SwitchingCircuits , used Boolean algebra to establish the theoretical basis of modern digital circuits.
The boundary control theories can be applied to all nonlinear switchingcircuits, and it is a simple and valid control method for judging stability briefly and raising the dynamic response validly.