20 circuits that engineers should master

Using 4 projects such as audio power amplifiers as a carrier, students will learn the analysis, production and testing of 20 classic unit circuits such as operational amplifier circuits. Through the study of 20 unit circuits such as operational amplifier circuits , master the basic structure, testing and application of diodes, transistors, resistors, capacitors and other components; master rectification, filtering, voltage stabilizing circuits, common emitter and common collector amplifier circuits, Analyze and apply methods for signal processing circuits such as operational amplifier circuits; master analysis and design methods for digital logic circuits such as counters, decoders, and oscillators. The teaching process is demonstrated using the simulation software Multisim, with virtual simulation training first and then physical circuit testing. Unit circuit learning process: functional qualitative analysis → parameter quantitative analysis → component analysis.

• Chapter 1：Electronic technology course (18 minutes and 19 seconds)

• Chapter 2：Regulated power supply structure (10 minutes and 47 seconds)

• Chapter 3：The structure of PN junction and diode (20 minutes and 11 seconds)

• Chapter 4：Diode characteristics (25 minutes and 13 seconds)

• Chapter 5：special diode (12 minutes and 26 seconds)

• Chapter 6：Transformer and rectifier circuit (15 minutes and 0 seconds)

• Chapter 7：Half-wave rectifier circuit simulation (11 minutes and 13 seconds)

• Chapter 8：Bridge rectifier circuit analysis (8 minutes and 56 seconds)

• Chapter 9：Simulation of bridge rectifier circuit (11 minutes and 51 seconds)

• Chapter 10：Use of oscilloscope (15 minutes and 25 seconds)

• Chapter 11：resistance (15 minutes and 21 seconds)

• Chapter 12：Capacitance characteristics (11 minutes and 38 seconds)

• Chapter 13：filter circuit (14 minutes and 44 seconds)

• Chapter 14：Filter circuit simulation (13 minutes and 9 seconds)

• Chapter 15：Rectifier and filter circuit measurements (8 minutes and 29 seconds)

• Chapter 16：Manual welding training (7 minutes and 39 seconds)

• Chapter 17：Voltage stabilization circuit analysis (16 minutes and 34 seconds)

• Chapter 18：Stabilizer circuit simulation (11 minutes and 33 seconds)

• Chapter 19：Rectifier, filter and voltage stabilizing circuit testing training (11 minutes and 36 seconds)

• Chapter 20：Use of signal generator (10 minutes and 19 seconds)

• Chapter 21：Signal measurement (9 minutes and 49 seconds)

• Chapter 22：Audio amplifier introduction (5 minutes and 31 seconds)

• Chapter 23：Audio amplifier structure (7 minutes and 40 seconds)

• Chapter 24：triode structure (32 minutes and 32 seconds)

• Chapter 25：common emitter amplifier circuit (12 minutes and 8 seconds)

• Chapter 26：Common emitter amplifier circuit analysis (23 minutes and 1 seconds)

• Chapter 27：Common emitter amplifier circuit simulation (19 minutes and 15 seconds)

• Chapter 28：Simulation of voltage dividing common emitter amplifier circuit (19 minutes and 23 seconds)

• Chapter 29：Common emitter amplifier circuit test (7 minutes and 28 seconds)

• Chapter 30：Voltage-divided common-emitter amplifier circuit test (8 minutes and 12 seconds)

• Chapter 31：Common collector amplifier circuit analysis (13 minutes and 12 seconds)

• Chapter 32：Impedance matching (12 minutes and 54 seconds)

• Chapter 33：Common collector circuit simulation (12 minutes and 40 seconds)

• Chapter 34：Common collector circuit test (7 minutes and 31 seconds)

• Chapter 35：Operational Amplifier (8 minutes and 44 seconds)

• Chapter 36：ideal operational amplifier (14 minutes and 18 seconds)

• Chapter 37：Inverting operational amplifier circuit (10 minutes and 41 seconds)

• Chapter 38：Inverting operational amplifier circuit simulation (9 minutes and 31 seconds)

• Chapter 39：Inverting operational amplifier circuit test (8 minutes and 58 seconds)

• Chapter 40：Non-inverting operational amplifier circuit (6 minutes and 11 seconds)

• Chapter 41：Non-inverting operational amplifier circuit simulation (13 minutes and 55 seconds)

• Chapter 42：feedback (15 minutes and 27 seconds)

• Chapter 43：Feedback circuit analysis (25 minutes and 10 seconds)

• Chapter 44：Single power supply operational amplifier circuit design simulation (8 minutes and 47 seconds)

• Chapter 45：Non-inverting operational amplifier circuit test (7 minutes and 45 seconds)

• Chapter 46：low pass filter circuit (13 minutes and 7 seconds)

• Chapter 47：High pass filter circuit (9 minutes and 15 seconds)

• Chapter 48：band pass filter circuit (14 minutes and 18 seconds)

• Chapter 49：Active low pass filter circuit (19 minutes and 12 seconds)

• Chapter 50：Low pass filter circuit simulation (9 minutes and 24 seconds)

• Chapter 51：High pass filter circuit simulation (8 minutes and 1 seconds)

• Chapter 52：Active low pass filter circuit simulation (10 minutes and 33 seconds)

• Chapter 53：Passive low-pass filter circuit testing (8 minutes and 34 seconds)

• Chapter 54：Passive high-pass filter circuit testing (11 minutes and 7 seconds)

• Chapter 55：Active low pass filter circuit testing (10 minutes and 50 seconds)

• Chapter 56：field effect transistor (24 minutes and 11 seconds)

• Chapter 57：field effect transistor amplifier circuit (12 minutes and 22 seconds)

• Chapter 58：Field effect transistor amplifier circuit simulation (9 minutes and 55 seconds)

• Chapter 59：Power amplifier circuit (31 minutes and 18 seconds)

• Chapter 60：Amplifier production (15 minutes and 40 seconds)

• Chapter 61：Class A and B power amplifier circuit simulation (9 minutes and 43 seconds)

• Chapter 62：Integrated amplifier circuit simulation (8 minutes and 58 seconds)

• Chapter 63：Introduction to temperature controllers and sensors (8 minutes and 50 seconds)

• Chapter 64：Temperature Sensor (17 minutes and 13 seconds)

• Chapter 65：Temperature measurement circuit (6 minutes and 50 seconds)

• Chapter 66：Adding circuit (10 minutes and 27 seconds)

• Chapter 67：Adding circuit simulation (6 minutes and 35 seconds)

• Chapter 68：subtraction circuit (8 minutes and 32 seconds)

• Chapter 69：Subtraction circuit simulation (7 minutes and 58 seconds)

• Chapter 70：Adding circuit test (8 minutes and 32 seconds)

• Chapter 71：Subtraction circuit test (5 minutes and 43 seconds)

• Chapter 72：Instrument operational amplifier circuit (16 minutes and 10 seconds)

• Chapter 73：Instrument operational amplifier circuit simulation (5 minutes and 50 seconds)

• Chapter 74：comparison circuit (16 minutes and 45 seconds)

• Chapter 75：Compare circuit simulations (8 minutes and 38 seconds)

• Chapter 76：Comparative Circuit Test (8 minutes and 19 seconds)

• Chapter 77：Thyristor (13 minutes and 0 seconds)

• Chapter 78：Thyristor triggering methods and parameters (9 minutes and 51 seconds)

• Chapter 79：Controlled rectifier circuit (25 minutes and 56 seconds)

• Chapter 80：Relay interface circuit (9 minutes and 6 seconds)

• Chapter 81：Photoelectric coupling interface circuit (9 minutes and 0 seconds)

• Chapter 82：binary (14 minutes and 54 seconds)

• Chapter 83：Number system conversion (12 minutes and 57 seconds)

• Chapter 84：coding (10 minutes and 37 seconds)

• Chapter 85：Logic (15 minutes and 39 seconds)

• Chapter 86：Basic rules of logical operations (11 minutes and 21 seconds)

• Chapter 87：gate circuit (15 minutes and 3 seconds)

• Chapter 88：Combinational logic circuit analysis (11 minutes and 50 seconds)

• Chapter 89：Combinational logic circuit design (13 minutes and 19 seconds)

• Chapter 90：38 decoder (14 minutes and 25 seconds)

• Chapter 91：display decoder (13 minutes and 17 seconds)

• Chapter 92：Basic RS flip-flop (16 minutes and 2 seconds)

• Chapter 93：D flip-flop (11 minutes and 2 seconds)

• Chapter 94：binary counter (13 minutes and 26 seconds)

• Chapter 95：N-base counter (23 minutes and 14 seconds)

• Chapter 96：sine signal generator (10 minutes and 52 seconds)

• Chapter 97：555 signal generation circuit (14 minutes and 30 seconds)

• Chapter 98：crystal oscillator (6 minutes and 34 seconds)