Switching transistors, Other Engineering

SWITCHING TRANSISTORS

When a transistor is to be used as a switching device, it operates either as an open circuit (i.e. in the cut-off region) or as a short circuit (i.e. in the saturation region). Figure 3 shows the solenoid switch and an alternative transistor switch.

1779_SWITCHING TRANSISTORS.png


For a common base circuit, such as in figure, the output voltage taken from the collector is either equal to the supply voltage (saturated region), or zero volts. (cut-off).

Posted Date: 9/14/2012 6:41:04 AM | Location : United States







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