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Educational program: Mechanic - electrician Title of program: Technical training II. class Generator of rectangular oscillations Worked out: Bc. Chumchal Miroslav Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.
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Scheme of generator of rectangular oscillations Components specification Recessing drawing Recessing drawing from the side of printed wiring Utilization of connection in practice Students activities
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Components Value IO 4011 R1,R2 1K R3,R4 470 C1 68K-100K D1,D2 KA …… T1 BC 548
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Testing of capacitors according to the acoustic signal Testing of semiconductor diodes Testing of transistors Testing of resistors
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Describe a function of the acoustic tester Describe a sound when faulty diode is testing Describe a sound when capacitor 330nF, 220μF is testing
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Draw a rectangular oscillations from the screen of oscilloscope to the prepared raster. Determine an amplitude of oscillations, period T. Calculate a frequency f Draw a graph of oscillation dependence, generated by a tester on amount of testing resistance1K, 10K.
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Own note exercise book
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