Electrical Engineering & Electronics Electric Drive Laboratory Equipment (with DC Motor, Three-Phase Adjustable) 5562SA61 Electrical Engineering Trainer

I. Significance of Developing This Product:
This equipment can complete the basic DC motor experiments required by the teaching syllabus. Its successful development solves the problems faced by many schools in procuring, managing, and conducting DC motor experiments due to difficulties in purchasing and managing components. This equipment organically integrates electrical engineering, electrical principles, electronic technology, electric drive control circuits, and DC motor experiments, significantly saving on laboratory space, management personnel, and funds. It greatly improves management efficiency and standardization, and significantly reduces the workload of teachers in preparing experiments. This equipment is an ideal choice for schools seeking a one-stop solution for large-scale, high-quality work.

II. Structure and Equipment:

1. Experiment Tables: One table with two seats. Table dimensions: 160×70×80cm. A universal circuit board is located in the center of each table. Each table is equipped with a rubber sheet to protect the circuit board and the tabletop (if needed for placing motors, soldering, etc.). Component storage cabinets are located under the tables for storing components.

2. Experimental Platform: Based on the DB-28C general-purpose electrical and electronic laboratory equipment set, a DC motor speed control circuit, Ia and If indicators, and a 0-220V DC power supply are added. One student experimental table and one teaching control console are provided.

3. Teaching Control Console: One teaching control console controls the power supply of 12 student tables. A general-purpose circuit board demonstration screen, measuring 150cm × 70cm, stands on the experimental platform for explanation and demonstration. 4. Equipment: 26 three-phase 180W motors, 13 100W DC motors, 26 time relays, 78 AC contactors, 156 AC/DC meters, 13 MF-500 multimeters, 39 indicator lights, 52 limit switches, 78 control buttons, 13 forward/reverse switches, 26 transformers, 13 three-phase double-throw switches, 13 three-phase switches, 13 sets of component boxes (components already installed) containing resistors, potentiometers, inductors, mutual inductors, diodes, transistors, MOSFETs, integrated circuits, thyristors, logic level switches, logic level indicators, etc., required for the experiment; 13 sets of wire strippers, screwdrivers, needle-nose pliers, etc.

5. User-provided equipment: Oscilloscope (model not limited), transistor millivoltmeter, etc.

III. Experimental Items: (1) Electrical Engineering Experiment

1. Use of electrical measuring instruments

2. 1. Identification and Testing of Common Components
2. Irradiance Characteristics of Linear and Nonlinear Components
3. External Characteristics of Power Sources
4. Measurement of Potential and Voltage Values
5. Range Extension of Ammeters and Voltmeters
6. Verification of Kirchhoff’s Laws
7. Verification of Lenz’s Law
9. Verification of the Superposition Principle and Reciprocity Theorem
10. Verification of Thevenin’s Theorem and Norton’s Theorem
11. Equivalent Transformation of Voltage and Current Sources
12. Study of Controlled Source Characteristics
13. Experiments on First-Order Circuits
14. Transient Process of Second-Order Circuits
15. Study of the Characteristics of LC Components in DC and AC Circuits
16. Conditions for a Load to Obtain Maximum Power
17. Measurement of AC Circuit Parameters
18. Characteristics of RLC Components in Sinusoidal AC Circuits
19. Experiments on RL and RC Series Circuits
20. RLC Series Resonant Circuit

21. Connection and Power Factor Improvement of Fluorescent Lamp Circuits

22. Star and Delta Connections of Three-Phase Loads

23. Three-Phase Circuits and Power Measurement

24. Research on R-C Frequency Selection Networks

25. Research on Two-Port Networks

26. Single-Phase Transformer Experiment

27. Mutual Inductance Circuit Experiment

28. Use and Starting of Three-Phase Asynchronous Motors

29. Basic Circuit of Relay Contact Control for Three-Phase Motors

30. Y-Δ Starting Control Experiment for Three-Phase Motors

31. Sequential Control Experiment for Three-Phase Motors

32. Energy Consumption Braking Control Experiment for Three-Phase Motors

The following circuit experiments can also be completed using the components from the above 32 experiments:

33. The Simplest Circuit

34. Selection of Potential and Reference Point in a Circuit

35. Series Connection of Resistors

36. Parallel Connection of Resistors

37. Mixed Connection of Resistors

38. 39. Ohm’s Law for the Entire Circuit
40. Application and Balance Conditions of a Bridge Circuit
41. Nodal Voltage Method
42. Loop Voltage Method
43. Branch Current Method
44. Parallel RCL Circuit
45. Series Circuit
46. Transformer Structure and Working Principle
47. Kirchhoff’s First Law
48. Kirchhoff’s Second Law
49. Fluorescent Lamp Circuit Principle
50. Extending the Voltmeter Range
51. Extending the Ammeter Range
52. Transient Process of an RC Circuit
53. Transient Process of an RL Circuit
54. Series Circuit of Capacitors
55. Parallel Circuit of Capacitors
56. 57. Capacitor Charging and Discharging

58. The Role of Capacitors in AC/DC Circuits

59. The Movement of a Bar Magnet in a Coil

60. Mixed Connection of Capacitors

61. Circuits with Pure Resistance, Inductance, and Capacitance

62. Forward Connection of Magnetic Coupled Coils

63. The Working Principle of an Ohmmeter

64. Two-Pole Switch Controlled by Two Grounds

65. Observing the Hysteresis Loop with an Oscilloscope

66. Ohm’s Law for Magnetic Circuits

67. Mutual Inductance and Corresponding Terminals of Two Coils

68. Mutual Inductance Coupling

69. Methods to Improve the Power Factor

70. Measurement of Power in a Single-Phase Circuit

71. Radio Recorder Power Supply Circuit

72. Filter Circuit

73. Relationship between Resistance and Temperature: Measuring the Resistance of a Filament at Different Voltages Using the Voltmeter-Ammeter Method

74. Experiment on Forward Rotation Controlled by a Three-Phase Asynchronous Motor with Knife Switch

75. Control Circuit with Overload Protection

76. Forward and Reverse Control Circuit with Button Control

77. Contactor-controlled star-delta reduced voltage starting control circuit

(2) Electronic Experiments

1. Characteristics and testing of crystal diodes

2. Input and output characteristics of crystal transistors

3. Low-frequency small-signal voltage amplifier

4. Directly coupled two-stage amplifier

5. RC-coupled two-stage amplifier

6. The effect of negative feedback on amplifier performance

7. Transformer-coupled push-pull power amplifier

8. Complementary symmetry push-pull power amplifier (OTL)

9. Single-phase half-wave rectification

10. Single-phase full-wave rectification

11. Single-phase bridge rectification

12. Single-phase bridge rectification and filtering

13. Characteristics of unijunction transistors

14. Unijunction transistor trigger circuit

15. Simple thyristor testing and controllable rectifier circuit

16. Field-effect transistor testing

17. Series-type regulated voltage

18. Research on differential amplifier circuits

19. Testing of integrated operational amplifier parameters

20. Integrated operational amplifier subtraction circuit

21. 21. Integrated Operational Amplifier Adder Circuit
22. Integrated Operational Amplifier Integrator Circuit
23. Integrated Operational Amplifier Differentiator Circuit
24. Integrated Operational Amplifier Wien Sine Wave Oscillator
25. Capacitor-based Three-Point Oscillator
26. Inductor-based Three-Point Oscillator
27. Integrated Voltage Regulator Circuit
28. Astable Multivibrator
29. Schmitt Trigger
30. Integrated AND Gate Logic Function Test
31. Integrated NOT Gate Logic Function Test
32. Integrated OR Gate Logic Function Test
33. Integrated NAND Gate Logic Function Test
34. CMOS Gate Circuit Test
35. Basic RS Flip-Flop
36. JK Flip-Flop
37. D Flip-Flop
38. Application of 555 Timer Circuit (Square Wave Generator)
39. Binary-Decimal Counter
40. Binary-Decimal 8421 Decoder
41. Adder
42. Subtractor
43. 44. Combinational Logic Circuits

45. Unidirectional Conductivity of P-N Junction

46. Measurement Circuit of ICBO of Transistor

47. Measurement Circuit of ICEO of Transistor

48. Transistor Current Amplification

49. VA Characteristics of Transistor

50. Single-Stage Small-Signal Voltage Amplification with Load

51. Voltage Negative Feedback Bias Circuit

52. Voltage Divider Current Negative Feedback Bias Circuit

53. Stabilizing Operating Point with Thermistor

54. Stabilizing Operating Point with Diode

55. Analyzing the Influence of Ce on Low-Frequency Characteristics

56. Common-Base Amplification Experimental Circuit

57. Common-Collector Amplification Experimental Circuit

58. Common-Source Basic Amplification Circuit

59. Field-Effect Transistor Self-Biased Amplification Circuit

60. Field-Effect Transistor Voltage Divider Self-Biased Circuit

61. Field-Effect Transistor Common-Drain Circuit

62. 63. Common-gate Field-Effect Transistor (FET) Amplifier Circuit
64. Single-Transistor RC Amplifier Circuit
65. Basic DC Amplifier Circuit
66. Using a Resistor to Increase the Emitter Potential of the Subsequent Stage
67. Using a Zener Diode to Increase the Emitter Potential of the Subsequent Stage
68. Transformer-Coupled Amplifier Circuit
69. Class A Power Amplifier Circuit
70. Class B Power Amplifier Circuit
71. Series Current Negative Feedback
72. Series Voltage Negative Feedback Circuit
73. Parallel Voltage Negative Feedback Circuit
74. Parallel Current Negative Feedback Circuit
75. Negative Feedback in a Two-Stage Amplifier Circuit
76. Emitter Follower Circuit
77. Bootstrap Emitter Follower Circuit
78. Using a Capacitor to Attenuate High-Frequency Voltage
79. Using Negative Feedback to Eliminate Self-Excited Oscillation
80. Battery Monitoring Circuit
81. Amplifier Circuit Composed of FETs and Transistors
82. PNP-NPN Direct-Coupled Amplifier Circuit
83. Common-Base Common-Emitter Amplifier Circuit
84. Transistor Switching Function
85. Liquid Level Photoelectric Control
86. Simple Temperature Control Circuit
86. Analog Light-Controlled Simple Streetlight Automatic Switch Circuit
87. RC Phase-Shifting Oscillator
88. Dual-T Frequency Selective Network
89. Oscillator Composed of Dual-T Frequency Selective Network
90. Transformer Feedback Oscillator Circuit
91. Field-Effect Transformer Feedback Oscillator Circuit
92. Burglar Alarm Circuit
93. Series Crystal Oscillator Circuit
94. Complementary Audio Oscillator
95. Alarm Sounder
96. Musical Doorbell Circuit
97. Electronic Alarm Circuit
98. Basic Form of Differential Amplifier Circuit
99. Electronic Doorbell Circuit
100. Quasi-Complementary Symmetry Circuit
101. Three-Transistor OTL Complementary Symmetry Circuit
102. Long-Tail Differential Amplifier Circuit
103. Differential Input Single-Ended Output
104. Single-Ended Input Double-Ended Output
105. Single-Ended Input Single-Ended Output
106. Dual-Power Supply Long-Tail Differential Amplifier Circuit
107. Differential Amplifier Experimental Circuit

108. Measures for Differential Amplifier Circuit with Constant Current Source

109. Temperature Analysis of Single-Ended Output Differential Amplifier Circuit

110. Flasher Circuit

111. Basic Connection Method of Operational Amplifier

112. Current Differential Op-Amplifier Used for AC Proportional Amplification

113. Simple Measurement Method of Vos

114. Simple Measurement Method of Aos

115. Simple Measurement Method of Aod

116. Simple Test of Common-Mode Rejection Ratio Cmrr

117. Simple Test of Maximum Common-Mode Input Voltage UIcm

118. Simple Test of Yopp

119. Measurement Method of SR

120. Basic Non-Inverting Amplifier Connection

121. LC Oscillator Constructed by Op-Amplifier

122. Temperature Adjustment Circuit for Heating Cup

123. Zero Adjustment Measures for Input Leading to Inverting Terminal

124. Zero Adjustment Measures for Input Leading to Non-Inverting Terminal

125. Connection methods to prevent excessive voltage values

126. Temperature compensation of Ios using the base current of a transistor

127. Improving the equivalent feedback resistance using a T-network

128. Measures to increase output current by operating a complementary transistor in class AB

129. Measures for correcting capacitive loads

130. Inverting input protection measures

131. Non-inverting input protection measures

132. Using Zener diodes for protection

133. Protection against incorrect power supply polarity

134. Overvoltage protection during power supply startup

135. Diode detector circuit

136. Circuit principle for measuring temperature using the temperature coefficient of a PN junction

137. Dual diode limiter

138. Basic circuit of an inverting operational amplifier

139. Variable ratio amplifier

140. Basic circuit of a non-inverting operational amplifier

141. Voltage/current conversion circuit

142. Current/Voltage Conversion Circuits

143. Voltage Follower

144. Basic Differential Amplifier Circuit

145. Differential Input of Operational Amplifier

146. Inverting Input Summation Operation

147. Non-Inverting Input Summation Operation

148. Dual-Ended Input Summation Operation

149. Basic Integrator Circuit

150. EG Integrator Circuit Considering Leakage Resistance

151. Measures to Improve Integration Time Constant

152. Fast Integrator Circuit

153. Analog First-Order Differential Equation Circuit

154. Analog Second-Order Differential Equation Circuit

155. Basic Differentiator Circuit

156. Practical Differentiator Circuit

157. Obtaining Approximate Differentials Using Indirect Methods

158. Basic Logarithmic Amplifier Circuit

159. Logarithmic Amplifier Circuit Constructed Using the Logarithmic Characteristics of Transistors

160. Basic Anti-Logarithmic Amplifier Circuit

161. Vo is proportional to VxVy circuit

162. Simple zero-crossing comparator circuit

163. Comparator circuit with hysteresis characteristics

164. Dual-limit comparator circuit

165. Circuit using diode as upper limit detection amplitude selection

166. Dual-limit tri-state comparator circuit

167. Lower limit amplitude detection selection circuit

168. Basic sampling protection circuit

169. Low-pass filter circuit with RC passive network

170. Filter circuit connected to the non-inverting input of the component

171. Filter circuit connected to the inverting input of the component

172. Simple second-order RC filter circuit

173. Typical RC active filter circuit

174. Second-order active filter circuit

175. Multiple-feedback two-stage active filter circuit

176. Typical second-order high-pass active filter circuit

177. Basic band-pass filter circuit

178. Typical band-pass filter circuit

179. Band-stop filter composed of a dual-T network

180. 181. Output Limiting Inverter
182. Practical Differential Operational Amplifier
183. Rectangular Wave Oscillator Circuit
184. RC Phase-Shift Trigger Circuit
185. Electric Heating Blanket Temperature Control Device
186. Adjustable Width Rectangular Wave Generator
187. Simple Sawtooth Wave Generator
188. Amplitude-Frequency Adjustable Sawtooth Wave Generator
189. Commonly Used Drawing Method for Single-Phase Bridge Rectifier Circuit
190. Maximum Reverse Peak Voltage of Full-Wave Rectifier Circuit
191. Capacitor Filter Circuit
192. Capacitor Filter with Resistive Load
193. Full-Wave Rectifier Capacitor Filter Circuit
194. RC Filter Circuit
195. Multi-Segment RC Filter Circuit
196. Basic LC Filter Circuit

196. T-type filter circuit

197. Voltage doubler rectifier circuit

198. Voltage tripler rectifier circuit

199. Basic Zener diode voltage regulator circuit

200. Basic regulator diode voltage regulator circuit

201. Voltage regulator circuit with amplification stage

202. Regulator diode current regulator circuit

203. Electronic filter

204. Series voltage regulator circuit

205. Parallel voltage regulator circuit

206. Electronic hypnosis device

207. Three-terminal integrated voltage regulator circuit

208. Integrated voltage regulator circuit with adjustable positive power output

209. Single-phase full-wave controlled rectification

210. Silicon Zener diode voltage regulator circuit

211. Single-phase half-wave controlled rectification

212. Single-phase bridge semi-controlled rectification

213. Principle of silicon rectifier for charging

214. 215. The Influence of Inductive Loads on Thyristors
216. Thyristor Triggering and Conduction Test
217. Thyristor Circuit with Back EMF Load
218. Simple Electronic Voltage Regulator Circuit
219. Testing the Voltage Division Ratio n of a Unijunction Transistor
220. Unijunction Transistor Oscillator Circuit
221. Unijunction Transistor Triggering Application Circuit
222. Diode AND Gate Circuit
222. Transistor OR Gate Circuit
223. Visualization of AND Logic
224. Visualization of OR Logic
225. Visualization of NOT Logic
226. Transistor NOT Gate
227. Transistor NAND Gate
228. Transistor NOR Gate
229. Bistable Transistor Circuit
230. Monostable Transistor Circuit
231. Multivibrator Circuit of Transistor
232. Set Trigger Circuit
233. Emitter-Coupled Bistable Transistor
234. Symmetrical multivibrator
235. Ring multivibrator
236. Differential monostable circuit
237. Integrated Schmitt trigger circuit
238. Rectangular wave generator
239. Single pulse circuit
240. Continuous pulse generator

(3) Electrical control section experiment
1. Knife switch forward rotation control circuit
2. Contactor jog forward rotation control circuit
3. Forward rotation control circuit with self-locking
4. Forward rotation control circuit with over-travel protection
5. Reverse switch control forward and reverse rotation control circuit
6. Contactor interlocked forward and reverse rotation control circuit
7. Push button interlocked forward and reverse rotation control circuit
8. Push button and contactor composite interlocking control circuit
9. Automatic reciprocating travel control circuit
10. Contactor control series resistor voltage reduction starting circuit (omitted)
11. Time relay control series resistor voltage reduction control circuit
12. Manual Y/Δ voltage reduction starting
13. 14. Contactor-controlled Y/Δ reduced voltage starting
15. Time relay-controlled Y/Δ reduced voltage starting
16. QX3-13 type Y/Δ automatic starting control circuit
17. Half-wave rectifier energy consumption braking control circuit
18. Full-wave rectifier energy consumption braking control circuit
19. C620 lathe electrical control circuit
20. Manual reduced voltage starting
21. Single-phase operation reverse connection braking control circuit
22. Electric hoist electrical control circuit
23. C6163 lathe electrical control circuit
24. Control circuit interlocking control circuit
25. Main circuit interlocking control circuit
26. DC motor starting
27. DC motor speed regulation
28. DC motor reverse rotation
29. DC motor braking experiment