Open AccessStudy of LED Grow Light Driver Circuit for Indoor Strawberry Cultures: A Class Experiment
Author(s) -
S. Sungwiset,
T. Janprung,
T. Pechsiri,
S. Puengsungewan
Publication year - 2021
Publication title -
asean journal of science and engineering education
Language(s) - English
Resource type - Journals
eISSN - 2775-6815
pISSN - 2775-6793
DOI - 10.17509/ajsee.v1i1.41121
Subject(s) - led circuit , electronic circuit , rl circuit , discrete circuit , electrical engineering , driver circuit , transistor , linear circuit , voltage , equivalent circuit , engineering , computer science , short circuit , constant power circuit , power factor
This journal presents the study of the led driver circuits for strawberry LED grow light. There are three driver circuits: A linear resistor circuit, a simple transistor circuit, and a boost converter circuit. Boost converter circuits are more efficient than direct drives and transistor drives. Because the circuit can be controlled from a 40 kHz PMW signal that gives a more constant value and circuit stability. There is also less load in the circuit, making less loss in the circuit with a high-efficiency value. When the voltage used is 12 volts, we got a value of Photosynthetic Photon Flux Density (PPFD) of 230 μmol/m2/s. This circuit has very high efficiency (98%). The boost converter is suitable for driving LED bulbs for strawberry planting.