Study on Energy Efficient Burn-In Techniques for Power Supplies

Energy conservation is of utmost importance in this modern era. However saving energy during the initial burn-in phase of a product is an area with very few advances in research. Recent trends have introduced the concept of energy recycling during this phase as well. Traditional burn-in methods using resistor load banks wastes electricity besides raising room temperatures. This paper presents high efficiency energy-recyclable burn-in technologies for power supplies which reduces power wastage. Different burn in techniques for dc power supplies based on efficiency are discussed which recycles most of the energy back to grid after testing. Energy efficient burn-in technique for UPS and electronic ballast with a high efficiency hysteresis inverter has also been proposed.