Electric switches; constant voltage power supply; constant current power supply; battery chargers; UPS being uninterruptible electrical power supplies; Lighting converters in the nature of LED drivers; lighting ballasts and LED drivers; electric apparatus for commutation, namely, commutators; apparatus for recharging electrical accumulators; electric power converters; semiconductor devices and integrated circuits for power conversion and smart power operations

'accumul':42 'apparatus':33,38 'ballast':28 'batteri':11 'charger':12 'circuit':50 'commut':35,37 'constant':3,7 'convers':53 'convert':20,45 'current':8 'devic':47 'driver':26,31 'electr':1,16,32,41,43 'integr':49 'led':25,30 'light':19,27 'name':36 'natur':23 'oper':57 'power':5,9,17,44,52,56 'recharg':40 'semiconductor':46 'smart':55 'suppli':6,10,18 'switch':2 'uninterrupt':15 'up':13 'voltag':4

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