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Multifunctional driving controller, WELD driving circuit and OLED driving circuit

A technology for driving controllers and control circuits, applied in electric light sources, electrical components, electroluminescent light sources, etc., and can solve problems such as increased power consumption

Inactive Publication Date: 2007-02-07
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the OLED controller is used to directly drive and control the brightness of the WLED, the power consumption of the entire WLED control system will be greatly increased.

Method used

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  • Multifunctional driving controller, WELD driving circuit and OLED driving circuit
  • Multifunctional driving controller, WELD driving circuit and OLED driving circuit
  • Multifunctional driving controller, WELD driving circuit and OLED driving circuit

Examples

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Embodiment Construction

[0042] In view of this, the present invention provides a multifunctional drive controller, which can control the brightness and darkness of the WLED in combination with the electrical characteristics of the WLED, and can control the brightness and darkness of the OLED in combination with the electrical characteristics of the OLED. figure 1 It is a structural block diagram of the multifunctional drive control circuit of the present invention. The multifunctional drive controller 100 of the present invention includes a selection unit 110 , a control circuit 120 and a detection unit 130 .

[0043] The selection unit 110 includes a control terminal 105, a first input terminal 101 for inputting a first reference voltage, a second input terminal 102 for inputting a second reference voltage, and an output terminal, which are used to input The control signal is used to determine whether to select the first reference voltage as the output signal or select the second reference voltage a...

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Abstract

The invention relates to a multifunctional driving controller, which comprises a select controller, a detector and a control circuit, wherein it outputs different detect result in different package methods to said select controller, to selectively guide one reference voltage to the control circuit according to the detected result, to drive the load better.

Description

technical field [0001] The invention relates to a drive controller, in particular to a multipurpose drive controller. technical background [0002] White Light-Emitting Diodes (WLED for short) are more and more widely used in the field of lighting, including the direction assist lights of automobiles and the flash lights of elementary digital cameras. Some companies have even enlarged the bare die area of ​​WLEDs from 2×2mm to 5×5mm to enhance their light emission, so that WLEDs can also be used in the main lights of automobiles. In addition, there is an organic light emitting diode (Organic Light Emitting Display, OLED for short) which is also being used more and more. With the emergence of WLED and OLED, a controller for driving and controlling WLED and a controller for driving and controlling OLED have also been produced. For WLED, the change of light and shade is controlled by controlling the current flowing through the WLED. Due to this characteristic, the working vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/14
CPCH05B33/0842H02M1/08H05B33/0815H05B33/0818Y02B20/347H05B45/30H05B45/38Y02B20/30
Inventor 王钊
Owner VIMICRO CORP