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| № |
Patent number |
Title of the invention and abstract piece | Date of publication of the patent |
|---|---|---|---|
| 1 | SE9700013A |
DRIVKRETS OCH FÖRFARANDE FÖR ATT DRIVA DENSAMMA
A driver circuit 1000 for driving functional devices, such as an LED 1020-1023, a buzzer 1060, a voltage converter or an EL-lamp, and a method of operating the driver circuit are provided. The circuit includes an inductor 1030, first and second connection points for connection of a voltage source 1050, switching means 1040 which when in a first state allows an electrical current to flow from the f... |
04.07.1998 |
| 2 | SE9700013L |
DRIVKRETS OCH FÖRFARANDE FÖR ATT DRIVA DENSAMMA
A driver circuit 1000 for driving functional devices, such as an LED 1020-1023, a buzzer 1060, a voltage converter or an EL-lamp, and a method of operating the driver circuit are provided. The circuit includes an inductor 1030, first and second connection points for connection of a voltage source 1050, switching means 1040 which when in a first state allows an electrical current to flow from the f... |
04.07.1998 |