Drive unit and light-emitting device

In a drive unit according to an embodiment of the present disclosure, in each of a plurality of current pulses, a rising crest value is the largest, and after the rising, the crest value is damped. Further, a rising crest value of a pulse of an n+1-th wave is smaller than a rising crest value of a p...

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Bibliographische Detailangaben
Hauptverfasser:	Nakamura, Masashi, Maeda, Osamu, Furushima, Yuji, Fushimi, Satoru
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY CRYPTOGRAPHY DEVICES USING STIMULATED EMISSION DISPLAY EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY PHYSICS PULSE TECHNIQUE SEALS
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Beschreibung
Zusammenfassung:	In a drive unit according to an embodiment of the present disclosure, in each of a plurality of current pulses, a rising crest value is the largest, and after the rising, the crest value is damped. Further, a rising crest value of a pulse of an n+1-th wave is smaller than a rising crest value of a pulse of an n-th wave. Furthermore, rising crest values of the current pulses of a second wave and waves after the second wave are determined by a mathematical function expressed as an electric potential change caused by ON-OFF of an RC time constant circuit that is single-end grounded. Moreover, in the mathematical function, a time constant at an OFF time is larger than a time constant at an ON time.