Abstract: A multi-lamp backlight system. The system includes a core, a first coil set wrapped around the core, to which a first AC voltage is applied, a second and third coil sets wrapped around the core and respectively disposed on two sides of the first coil set, on which a second and third AC voltage are induced by the first voltage signal applied to the first coil set respectively, wherein the numbers of coils of the second and third coil sets are substantially the same, and first and second lamps are supplied with power by the second and third AC voltages respectively.

Abstract: A multi-lamp backlight system. The system comprises a core, a first coil set wrapped around the core, to which a first AC voltage is applied, a second and third coil sets wrapped around the core and respectively disposed on two sides of the first coil set, on which a second and third AC voltage are induced by the first voltage signal applied to the first coil set respectively, wherein the numbers of coils of the second and third coil sets are substantially the same, and first and second lamps are supplied with power by the second and third AC voltages respectively.

Abstract: A multi-lamp backlight system. The system comprises a core, a first coil set wrapped around the core, to which a first AC voltage is applied, a second and third coil sets wrapped around the core and respectively disposed on two sides of the first coil set, on which a second and third AC voltage are induced by the first voltage signal applied to the first coil set respectively, wherein the numbers of coils of the second and third coil sets are substantially the same, and first and second lamps are supplied with power by the second and third AC voltages respectively.

Abstract: To allow sounds to be output by the audio amplifier of a multi-media computer system during periods of CPU inactivity and display screen blanking, a switch is added to the control circuit of the audio amplifier which overrides the energy-saving shut-down program which would normally be activated to cut-off power to both the monitor display screen and the audio amplifier. The switch is in the form of a transistor whose control electrode is connected to both the power supply and to the CPU, such that the transistor can be turned on either by a signal from the main power circuit or by a keyboard activated signal from the CPU's microprocessor, the collector of the transistor being connected to the audio input terminal of the audio amplifier.