Patent ID: 7893661

Claim:
A driver circuit arrangement ( 1 ; 1 ′; 100 ), comprising a connection ( 3 ) to a source ( 7 ) of electrical energy, and a plurality of individually switchable electrical subsystems (A, B, C; A′, B′, C′; A″, B″), each subsystem comprising a switch ( 11 -A, 11 -B, 11 -C) for controlling a flow of energy from the source ( 7 ) of electrical energy to said subsystem (A′, B′, C′; A″, B″), an electrical device ( 9 -A, 9 -B, 9 -C), and an energy storage device ( 10 -A, 10 -B, 10 -C) for storing energy, characterized in that each subsystem (A′, B′, C′; A″, B″) comprises a subswitch ( 13 -A, 13 -B, 13 -C), constructed and arranged to control a flow of stored energy from the energy storage device ( 10 -A, 10 -B, 10 -C) to the electrical device ( 9 -A, 9 -B, 9 -C).