Light source driver module and circuit

The invention relates to a light source driver circuit, which comprises a voltage signal source and a current source for improving temperature effect, and is used for adjusting the brightness of a light-emitting diode serial. The first end of the light-emitting diode serial is electrically connected...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LIN QIXIU, CHEN JIANYANG, LIN XINZHANG, XIE BOKUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BLASTING CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a light source driver circuit, which comprises a voltage signal source and a current source for improving temperature effect, and is used for adjusting the brightness of a light-emitting diode serial. The first end of the light-emitting diode serial is electrically connected to a ground terminal. The current source for improving the temperature effect comprises an adjustable bias voltage source used for outputting an adjustable voltage, a current source controlled by the voltage and used for outputting current according to the voltage signal source, and a feedback circuit which is electrically connected between the second end of the light-emitting diode serial and the adjustable bias voltage source, and is used for controlling the voltage output by the adjustable bias voltage source according to the voltage of the second end of the light-emitting diode serial.