design your own variable power supply. Each group is composed of three members. The following specifications are: 1. The transformer is either a center-tapped, multi-tapped or toroidal. Check the current rating. 2. For the diode, the available market code is 1N4001 (you can use any general purpose diode!) general purpose diode. You can use other general-purpose diode codes. 3. For the capacitor, use the electrolytic capacitor. You can add RC filter (optional) to ensure the ripple minimization. 4. For the IC voltage regulator, use the LM317 variable IC voltage regulator. Search the data sheet and its pin configuration. The resistor R must be a potentiometer. +- VIN VIN LM 317 ADJ 120 V rms. VOUT LADJ Transformer VREF 5. Implement the circuit in the PCB board. Matrix board is NOT ALLOWED! You may use PCB layout softwares (CAD EAGLE, PROTEUS, etc.) for layout and etching. 6. Refer to your members, implement the hardware (power supply circuit) with a casing (plastic or wood). R 7. The minimum and maximum output voltage of your designed power supply are 1.1 V and 30 V. Rectifier R 8. Make a documentation of your power supply. The content of your documentation is the schematic diagram with their specific/role in the circuit, image of actual power supply with the PCB board and casing, results in testing the power supply for functionality and overall conclusion of the circuit. 9. You may use the electronics reference book (Boylestad) for this subject about power supplies (Chapter 15). Filter IC regulator FIG. 15.1 Block diagram showing parts of a power supply. Load