Light emitting module drive apparatus and its drive method

Light emitting module drive apparatus and its drive method

The present invention discloses a driving device of a light emitting module, and the drive device is used to generate a drive current according to a first input voltage and a second input voltage to the light emitting module. The driving device comprises an amplifier, a first loop circuit and a seco...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ZHANG SHUWEN, LIN QIXIU, XIE BOKUN
Format: Patent
Sprache:chi ; eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:The present invention discloses a driving device of a light emitting module, and the drive device is used to generate a drive current according to a first input voltage and a second input voltage to the light emitting module. The driving device comprises an amplifier, a first loop circuit and a second loop circuit. The amplifier comprises a first input end, a second input end and an output end; afirst reactive circuit is used to determine a first reactive voltage inputted to the first input end according to an output voltage produced by the amplifier and the first input voltage; a second reactive circuit is used to determine a second reactive voltage inputted to the second input end according to an output voltage generated by the amplifier and the second input voltage.