• DEWANTO HARJUNOWIBOWO ESMART, Physics Education Department, Sebelas Maret University, Indonesia
  • RESTU WIDHI HASTUTI Physics Education Department, Sebelas Maret University, Indonesia
  • KENNY ANINDIA RATOPO Physics Education Department, Sebelas Maret University, Indonesia
  • ANIF JAMALUDDIN ESMART, Physics Education Department, Sebelas Maret University, Indonesia
  • SYUBHAN ANNUR FKIP MIPA, Lambung Mangkurat University, Indonesia


blocking oscillator, characteristic, efficiency, LED, pulse


An application Blocking Oscillator (BO) on a battery to power a system LED lamp light detector has been built and compared with a standard system used phone cellular adapter as the power supply. The performance analysis was carried out to determine the efficiency of the blocking oscillator and its potency to be adopted in an electronic appliance using low voltage and current from a battery. Measurements were taken using an oscilloscope, a multimeter, and a light meter. The results show that the system generates electrical pulses of 1.5 to 7.6 VDC and powering the system normally. The system generates 3.167 mW powers to produce the intensity of 176 Lux. On the contrary, the standard system needs 1.8mW to produce 5 Lux. A LED usually takes at least 60mW to get 7150 Lux. Therefore, the system used a simple blocking oscillator seems potential to provide high voltage for powering electronic appliances with low current.



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