scholarly journals Penerapan High Power LED (HPL) sebagai Penarik Datangnya Ikan Berbasis Mikrokontroler

2020 ◽  
Vol 9 (1) ◽  
pp. 51-59
Author(s):  
Sapta Nugraha ◽  
Restu Alkhariti ◽  
Tonny Suhendra
Keyword(s):  
High Power ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Basic Material ◽  
Fluorescent Lamp ◽  
Water Turbidity ◽  
Green Led ◽  
High Power Led ◽  
Arduino Uno ◽  
Compact Fluorescent Lamp

Kelong is a rectangular-shaped house made of basic material is logs of various sizes that are bound square and below which are given drums to float. Based on the results of monitoring of fishermen on Bintan Island, fish gathered at a fishing distance by using white lights with a power of 2000 watts divided separately on four power lamps each of 500 watts. Currently fishermen choose to use this type of CFL (compact fluorescent lamp) lamp to attract fish's attention and because this type of lamp has an affordable price. In its application, the type of high power LED lamp with two colors, white and green, each is controlled based on water turbidity parameters with a percentage value of 0-33%, 34-66%, and 67-100%. PWM (Pulse Width Modulation) high power LED works with a percentage of 25% when turbidity <33%, percentage of 50% if turbidity> 33%, and percentage of 100% if turbidity ≥ 66%. The use of turbidity sensors that are connected to the Arduino uno is used as a control media that is equipped with an analog signal module to measure water turbidity. Based on its application the high power green LED produces 6 ounces and 2.5 ounces of high power white LED. Intisari Kelong adalah rumah berbentuk segi empat yang terbuat dari bahan dasarnya adalah kayu gelondongan berbagai ukuran yang diikat persegi empat dan di bawahnya diberi drum-drum untuk mengapung. Berdasarkan hasil pantauan pada nelayan di Pulau Bintan, ikan berkumpul pada jarak tangkap nelayan menggunakan lampu berwarna putih dengan daya sebesar 2000 watt yang dibagi terpisah pada empat buah lampu berdaya masing-masing sebesar 500 watt. Saat ini nelayan memilih menggunakan jenis lampu CFL (compact fluorescent lamp) untuk menarik perhatian ikan dan karena jenis lampu ini memiliki harga yang terjangkau. Pada penerapannya digunakan jenis lampu high power LED dengan dua warna yaitu putih dan hijau, masing – masing dikontrol berdasarkan parameter kekeruhan air dengan batasan nilai persentase 0-33%, 34-66%, dan 67-100% . PWM (Pulse Width Modulation) high power LED bekerja dengan persentase 25% apabila turbidity < 33%, persentase 50% apabila turbidity > 33%, dan persentase 100% apabila turbidity ≥ 66%. Penggunaan sensor turbidity yang dihubungkan dengan Arduino uno digunakan sebagai media pengendali yang sudah dilengkapi dengan modul sinyal analog untuk mengukur kekeruhan air. Berdasarkan penerapaanya high power LED warna hijau menghasilkan sebesar 6 ons dan high power LED warna putih 2,5 ons. 

scholarly journals Rancang Bangun Pulse Width Modulation (PWM) Sebagai Pengatur Kecepatan Motor DC Berbasis Mikrokontroler Arduino

2018 ◽  
Vol 3 (1) ◽  
pp. 50-58
Author(s):  
Rifdian I. S. ◽  
Hartono Hartono
Keyword(s):  
Duty Cycle ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Arduino Uno

Pulse Width Modulation (PWM) sebagai pengatur kecepatan motor DC telah digunakan secara luas di dunia industri. Kecepatan putar motor dikontrol dengan mengatur duty cycle PWM yang dibangkitkan oleh mikrokontroler arduino. Pada penelitian ini pengaturan nilai PWM dilakukan melalui program (sketch) ke arduino uno. Output dari PWM dihubungkan pada arduino melalui pin output analog. Dengan pengamatan menggunakan osiloskop dapat diketahui bahwa perubahan nilai ton dan toff menentukan nilai RPM dari motor DC yang dikontrol. Sehingga dengan menggunakan nilai PWM yang berbeda, variasi kecepatan motor DC juga berubah-ubah. Nilai PWM yang digunakan yaitu kelipatan 10 dari 25 hingga 255. Diperoleh hasil pengamatan berupa Ton dan Toff yang tertera pada osiloskop dan hasil pengamatan tersebut diolah untuk mengetahui duty cycle yang kemudian dibandingankan dengan PWM dan RPM nya. Sehingga dapat diketahui bahwa semakin besar nilai PWM maka RPM motor DC juga akan semakin besar, dan semakin besar nlai PWM yang diberikan, maka nilai duty cycle yang dihasilkan juga akan semakin besar

High‐power‐factor dimmable LED driver with low‐frequency pulse‐width modulation

2016 ◽  
Vol 9 (10) ◽  
pp. 2139-2146 ◽  
Author(s):  
Hung‐Liang Cheng ◽  
Yong‐Nong Chang ◽  
Chun‐An Cheng ◽  
Chien‐Hsuan Chang ◽  
Yu‐Hung Lin
Keyword(s):  
Power Factor ◽  
High Power ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Low Frequency ◽  
Led Driver ◽  
High Power Factor ◽  
Frequency Pulse

Pulse Width Modulation Based Decentralized Street LED Light Dimming System

2017 ◽  
Vol 8 (3) ◽  
pp. 1220 ◽  
Author(s):  
Hussain Attia ◽  
Amjad Omar ◽  
Maen Takruri ◽  
Halah Y. Ali
Keyword(s):  
Power Consumption ◽  
High Power ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Data Transfer ◽  
Street Lighting ◽  
Led Light ◽  
Dimming Control ◽  
High Power Consumption ◽  
Lighting Systems

<p>The high power consumption of conventional street lighting systems, and the consequences on environmental ecosystem due to continuous turning ON of light, have led researchers to seek solutions to this problem. LED light dimming system has been presented in many studies using computerized systems with or without wireless monitoring facility. The demerits of these systems include complexity, high cost and unfixed data transfer speed. This paper proposes to reduce power consumption of street lighting through a decentralized light dimming system that is based on Pulse Width Modulation (PWM). This is in addition to replacing conventional high power lamps with lower power LED lamps. The dimming control circuit of this system is fixed on each pole and controlled individually resulting in faster and more reliable response. The proposed system uses the available infrastructure and is suitable for small or main streets regardless of the number of light poles. It is also flexible in its coverage distance due to the freedom of motion detector selection. The advantages of using LED lighting on the environment as compared to conventional lighting are explained. Simulations reveal the effectiveness of the proposed system on energy saving and on the environment.</p>

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