Fig 1. Two multiplexers (U2 and U3) enable this data-acquisition IC (U1) to monitor up to 12 battery temperatures in a configuration that saves power when it isn’t actively making measurements. Fig 2.
The circuit was designed to create a spare and reserve power source with the use of batteries during the absence of power from the mains. BD139 – NPN power transistor used for driver stages in hi-fi ...
ExtremeCircuits presents a small electronic switch that connects a battery to the equipment for a certain amount of time when a push-button is momentarily pressed. And we have also taken the ambient ...
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