SEMICONDUCTOR LASER DRIVE CIRCUIT

SEMICONDUCTOR LASER DRIVE CIRCUIT

PURPOSE:To provide a semiconductor laser drive circuit which can surely and constantly control the output sum of a plurality of semiconductor lasers without making any complicated setting of reference voltage. CONSTITUTION:The title circuit is constituted so that the circuit can control the light em...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HARASAWA SHINICHIRO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:PURPOSE:To provide a semiconductor laser drive circuit which can surely and constantly control the output sum of a plurality of semiconductor lasers without making any complicated setting of reference voltage. CONSTITUTION:The title circuit is constituted so that the circuit can control the light emitting quantities of a plurality of semiconductor lasers 11-1n based on the compared result Vx of a comparing means 3 so that the output sum V of the lasers 11-1n can become constant by finding the sum V by means of an adding means 2 and comparing the sum V with a reference signal Ref by means of the means 3.