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Basic Transistor Circuits - PCB Heaven
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日期:2025-05-03
2009年2月24日 - Basic transistor relay driver, actuated on HIGH input (NPN) ... The transistor must have an hFE greater than 5 X 75 / 2 => hFE > 187.5. So we choose a ... You should consider using low current loads using this circuit. There is a ......看更多