Current source apparatus, light-emitting-device apparatus and digital-analog converting apparatus

A current source apparatus includes a first MOS transistor having a drain serving as current input terminals with the gate connected to the drain, a first switch connected to the source of the first MOS transistor, a second MOS transistor having a drain serving as a current output terminal, a second...

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Bibliographische Detailangaben
Hauptverfasser:	OHKUBO MANABU, OZASA MASAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING CONTROLLING DECODING ELECTRICITY PHYSICS PULSE TECHNIQUE REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	A current source apparatus includes a first MOS transistor having a drain serving as current input terminals with the gate connected to the drain, a first switch connected to the source of the first MOS transistor, a second MOS transistor having a drain serving as a current output terminal, a second switch connected to the source of the second MOS transistor, a third switch having one end connected to the gate of the first MOS transistor, and the other end connected to the gate of the second MOS transistor, and a drive circuit which controls the second switch and the third switch.