Light output control circuit

Using a switching signal from a coarse/fine switching and operation mode switching circuit (16) , the width of change of a counter control value during power up is increased, and the width of change is reduced once a steady state is reached. In the steady state, the frequency of updating is limited...

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Bibliographische Detailangaben
Hauptverfasser:	UENO, NORIO, KAWAI, MASAAKI, MATSUYAMA, TORU, INOU, TADAO, MURAKAMI, NORIO, MIKI, MAKOTO, IKEUCHI, TADASHI, TAKAUJI, TOSHIYUKI, ROKUGAWA, HIROYUKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY SEMICONDUCTOR DEVICES
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	Using a switching signal from a coarse/fine switching and operation mode switching circuit (16) , the width of change of a counter control value during power up is increased, and the width of change is reduced once a steady state is reached. In the steady state, the frequency of updating is limited by a control signal from an update permit control circuit (276). In the steady state, the frequency band of a current source in an LD driving circuit (10) is reduced in width.