UTILIZATION OF BOOSTER CIRCUIT JOULE THIEF FOR GARDEN LIGHTING SOURCE OF VOLTAGE FROM THE SUN

Garden lighting from a sun source utilizes a series of joule thieves so that the lighting of the garden lights at night is bright. This research method uses a quantitative method because it must be tested on each module so that it finds that there are three types of module systems to be combined, the booster or joule electronic thief module, the supply media solar module circuit, and finally, the control system with the Arduino nano board. The solar module used is a 1-watt solar module with 1n4004 diodes, which will convert the heat of sunlight into voltage. The voltage will be sent via the IC TP4056 input, the output from the IC TP4056 will charge the 18650 battery, which aims to ignite the booster circuit on the 12 W lamp, or the 3.7VDC input from the 18650 battery capable of turning on the 12W/220VAC led light. While the controller is connected to the LDR sensor and relay when the user makes the command, LDR > 800 of the provisions, the relay position from NC becomes open, or during the day, the relay will be in the NC position and turn off the 12W light in the booster circuit, while at night the relay will remain in the no position, so that it will connect the booster circuit voltage and turn on the 12W lamp (LDR < 800).Keywords: booster circuit; campus park lighting; solar panels Abstrak: Penerangan taman dari sumber matahari memanfaatkan rangkaian joule thief agar penerangan lampu taman pada malam hari terang. Metode penelitian ini menggunakan metode kuantitatif dikarenakan harus diuji coba pada tiap modul, sehingga mendapati ada tiga jenis sistem modul yang akan digabungkan, modul elektronika rangkaian booster atau joule thief, rangkaian modul surya media pensuplly, dan terakhir sistem controller dengan board arduino nano. Modul surya yang digunakan modul surya 1 watt dengan dioda 1n4004, akan mengubah panas cahaya matahari menjadi tegangan . Tegangan akan dikirimkan melalui input IC TP4056, output dari IC TP4056 akan mengisi baterai 18650 yang bertujuan sebagai penyala rangkaian booster pada lampu 12 W, atau input 3.7VDC dari baterai 18650 mampu menyalakan lampu led 12W/220VAC. Sementara controller terhubung kesensor ldr dan relay, ketika perintah yang dibuat oleh user, ldr > 800 dari ketentuan, posisi relay dari nc menjadi open, atau siang hari, relay akan diposisi nc dan mematikan lampu 12W pada rangkaian booster, sementara jika malam hari relay akan diposisi no, sehingga akan menghubungkan tegangan rangkaian booster dan menyalakan lampu 12W (ldr < 800). Kata kunci : panel surya, penerangan taman, rangkaian booster.

Interactive Module Development of Teacher's Measurements

This research develops an interactive module system that can be used to explore and build a self-assessment checklist on significant learning content in the daily life and work of students in the future. The purpose of this interactive module system is to contribute to the teacher in choosing the appropriate learning content for teaching. This study will focus on the contents of Form 1 history subjects involving teachers and students. In addition, with a self-assessment checklist of teachers, educators can use it in determining significant learning content with the life and nature of student work. The built-in interactive module system also benefits pupils when the learning takes place content and skills that can be used all the time. The data were obtained through field observations in the classroom and teacher work. In general, the use of interactive module systems developed is very good and effective. The findings show that the majority of users have stated that the developed system interface is of interest to the user, in which the navigation system developed is user-friendly. The user states that the usability of the developed system is very helpful to teachers and students in understanding the content of the given lessons.

Case Study: Program Management of Volume Modules

Volume module systems in the refining and petrochemical industries are large, multi-level systems that are fabricated offsite and stacked onsite, with integral piping and wiring interconnections. This is a case study in a program management system that was introduced for a particular volume module system. Modular design and fabrication suffer from inherent shortcomings: it is neither cheap nor fast nor does it result in any meaningful increase in quality. Lessons learned reveal cheaper, faster and better methods that overcome the inherent shortcomings of modular design and construction. These lessons can inform current trends in modular design and fabrication in the USA and Canada.