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Arduino-Tanachaimod.php    10221 Bytes    09-06-2024 12:33:44


Arduino/Genuino Bipolar Transistor Curve Tracer


Final Version aka "Tanachaimod"



This is somehow a final version of all of our semiconductor component tester projects. It is bipolar, can handle Drain - Source (Collector - Emitter) currents up to 999 mA and voltages of +/- 9.999 V. Base Current is in the Range of +/- 5 mA.


ARDUINO/Genuino 'TransistorCurveTracer'

The final Design in a KOH-4 case. A Python Script handles the Data Management.





✈ The Block Diagram / Function Description






Yes, not much inside. The outputs mainly use this unipolar to bipolar converter circuit. In the case of the Drain output with a buffer amplifier (OPA 544) to handle the large current. In the case of the Base output, an INA 118 (Instrumentation Amplifier) translates the voltage across a 1 kΩ shunt resistor to a ground referenced voltage and by that generates an output current of +/- 5 mA. All other outputs are in the range of +/- 10 V. A temperature sensor (LM35), mounted on the heatsink, allows for periodically checks on the fitness of the setup.


Arduino Curve Tracer


Inside view ... just a DAC and an ADC




✈ Downloads








✈ Remote Control of the Tanachaimod









✈ Selftest • First Power On




TESTBASE:ON, TESTBASE:OFF, 1 kΩ load
TESTGATE:ON, TESTGATE:OFF


TESTDRAIN:ON, TESTDRAIN:OFF




✈ Performance • SB340 (Schottky Diode)




Anode connected to DRAIN, Cathode connected to SOURCE ports.
Python Script "SB340-Diode.py".






✈ Share your thoughts



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t1 = 6585 d

t2 = 191 ms

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