pwede po ba malaman kung ano ang schematic diagram ng circuit 1-3?
My apologies for missing that part of your question earlier. Here are the possible schematic diagrams for circuits 1 to 3:
Circuit 1 - Positive Power Supply:
A basic schematic diagram of a positive power supply circuit will consist of a transformer, rectifier diodes, filter capacitors, and a voltage regulator. Here's a sample schematic diagram:
[Transformer]--->[Rectifier]--->[Filter Capacitor]--->[Voltage Regulator]---> [Output]
Circuit 2 - Negative Power Supply:
A negative power supply is essentially a mirror image of a positive power supply, in which the polarity of the voltage output is inverted. Here's a sample schematic diagram:
[Transformer]--->[Rectifier]--->[Filter Capacitor]--->[Voltage Regulator]---> [Output]
Circuit 3 - Minimum 2-Stage Amplifier:
Here's a sample schematic diagram of a minimum 2-stage amplifier circuit:
[Input]--->[Gain Stage 1 (Transistor / Op-Amp)]--->[Gain Stage 2 (Transistor / Op-Amp)]--->[Output]
Note that the actual schematic diagram of circuits 1 to 3 may vary depending on the specific design requirements, components used, and the application. It's important to consult a qualified electrical engineer or technician to ensure that the circuit design is safe and functional.