Objective CHLORIDE LEGG, UK, INVESTIGATED WHETHER IT WAS POSSIBLE TO DEVELOP A HIGH FREQUENCY BATTERY CHARGER IN SUCH A WAY THAT IF CAN BE USED AS A MOTOR CONTROLLER. THIS WAS SHOWN TO BE TECHNICALLY POSSIBLE. IT WOULD HOWEVER REQUIRE TRANSISTORS OF 0,5 MW SWITCHING AT 25,000 HZ. THESE TRANSISTORS, IF AVAILABLE, WILL BE TOO EXPENSIVE FOR THE MOMENT. WORK WAS THEN FOCUSSED ON THE DEVELOPMENT OF A HIGH FREQUENCY CHARGER OF 12 KW OPERATING AT 25 KHZ. WITH COMMERCIALLY AVAILABLE TRANSISTORS THE THEORETICAL MAXIMUM POWER OF THESE CHARGERS WAS CALCULATED TO BE 6 KW AND THE OBJECTIVE WAS THEREFORE TO DEVELOP TWO 6 KW CHARGERS IN PARALLEL. FROM THE DIFFERENT POSSIBLE OPTIONS THE DOUBLE ENDED FORWARD CONVERTER WAS FOUND TO BE MOST SUITABLE. WITH A PROTOTYPE CHARGER AN OUTPUT POWER OF 3,3 KW WAS ACHIEVED; THIS IS NOW BEING FURTHER IMPROVED. IN ADDITION THE MK2 ELECTRICAL VEHICLE CONTROLLER HAS BEEN DEVELOPED , WHICH PROVIDES IMPROVED VEHICLE PERFORMANCE AND RELIABILITY. THIS WAS VERIFIED BY TESTS OF FIVE PREPRODUCTION UNITS IN ELECTRICAL VEHICLES. Programme(s) PRE-ENNONUC 2C - Energy research and development programme (EEC), 1979-1983 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator Chloride Legg Ltd EU contribution No data Address Fordhouse Road WV10 9EB Wolverhampton United Kingdom See on map Total cost No data
