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Measuring gain of a transistor using an ATMega8

Status: Einsendung
26549
45
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24. August 2012
transistor test

The circuit and the software are modified versions of the transistor test circuit by Burkhard Kainka on http://www.elektronik-labor.de/AVR/NPNpnp.html. There an ATTiny13 is used and the data is sent to a PC via RS232. Here the test is done by an ATMega8 or ATMega88 and data is displayed on a LCD.

For PNP transistors the collector and emitter have to be connected in reverse.

I only had a 20x2 LCD but a 16x2 or even smaller LCD is also okay.

On the photograph the transistor under test can be seen - in this case a BC548B.

Thanks to Burkhard Kainka for the permission to adapt his project.

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