MR1721

Vol.02-05-e / June2002 MR1000 Series Standby-compatible Partial Resonance Power Supply IC Modules Masaaki Hayashi - Electronic Device Div.Group Advanced Power Products Div. Device Design Dept. Assistant Manager (Joined the company in 1989) 1 www.DataSheet4U.com Introduction Energy conservation guidelines from the Ministry of Economy, Trade and Industry’s Agency of Natural Resources and Energy place considerable emphasis on reducing standby power consumption of domestic electrical appliances. These guidelines designate domestic electrical appliances as 'special devices', and set target years and criteria for achieving these reductions based on the 'top runner' system. They are characterized by a considerable degree of severity in that, if targets cannot be achieved, manufacturers are legally required to publicly proclaim the fact, and to follow the recommendations of the Agency of Natural Resources and Energy. Domestic electrical appliances employing remote controls are characterized by a standby time which is considerable in proportion to the duration of daily use. While the absolute value of the instantaneous power consumption is low, the proportion of standby power consumption within the total annual power consumption is large, and demands for a reduction in standby power consumption are therefore becoming increasingly vociferous. The MR1000 Series products introduced in this paper are standby-compatible partial resonance power supply IC modules consisting of a multi-chi...