Driving circuit to generate a signal pulse for operating a light-emitting diode

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11294055
APP PUB NO 20200396813A1
SERIAL NO

16313313

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A driving circuit (10) to generate a signal pulse for operating a light-emitting diode (20) comprises an external terminal (LEDK, LEDA) to connect the light-emitting diode (20) to the driving circuit (10). In a first operating state/pre-charge state of the driving circuit (10), a first controllable switching circuit (100) connects a first side (301) of a capacitor (300) to a reference potential (Vref) and a second controllable switch (200) connects a second side (302) of the capacitor (300) to one of a supply and ground potential (VDD, VSS). In a second operating state of the driving circuit (10), the first controllable switching circuit (100) connects the first side (301) of the capacitor (300) to said one of the supply and ground potential (VDD, VSS) and the second controllable switch (200) connects the second side (302) of the capacitor (300) to the external terminal (LEDK, LEDA) to provide a signal pulse for operating the light emitting diode.

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Patent Owner(s)

  • AMS AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lueger, Manfred Stainz, AT 13 48

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