Unlock instant, AI-driven research and patent intelligence for your innovation.

Xenon lamp-to-LED adapter circuit, LED adapter module and LED module

A technology for adapting circuits and xenon lamps, applied to electric light sources, electrical components, lighting devices, etc., can solve the problem of high cost and achieve the effect of low replacement cost

Pending Publication Date: 2021-03-09
广州纽威光电科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the power supply circuit of the LED and the power supply circuit of the HID light bulb work in a completely different way. If the vehicle using the HID light bulb needs to be replaced with an LED light, the power supply circuit needs to be replaced, and the cost is relatively high.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Xenon lamp-to-LED adapter circuit, LED adapter module and LED module
  • Xenon lamp-to-LED adapter circuit, LED adapter module and LED module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the application clearer, the technical solution of the application will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiment is the embodiment of the application. Some, but not all, embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0036] refer to figure 1 , a xenon lamp to LED adaptation circuit, comprising:

[0037] A rectification and filtering unit, the rectification and filtering unit is used to convert alternating current into direct current, and the rectification and filtering unit includes a positive output terminal and a negative output terminal.

[0038] It can be understood that a general rectification ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a xenon lamp-to-LED adapter circuit, an LED adapter module and an LED module, relates to the field of automotive electronics. The voltage output by a rectifying and filtering unit is sampled through a sampling unit, a hot start simulation unit is used for generating PWM waves with the duty ratio positively correlated with the sampling voltage based on the voltage of the sampling point to control a shunt unit, and therefore the power of the LED is shared, the characteristic of HID high-power start can be simulated, and the LED can work within the set current range in thestart stage without being destroyed by excessive power. A pulse width modulation unit performs window comparison on signals respectively output by a negative resistance operation unit, a peak currentlimiting unit and a triangular wave generation unit to control a power driving unit, so that the current flowing through a constant current unit is constant, and therefore, the LED can be adapted toan HID ballast, and when the LED lamp of an automobile is replaced, a power supply circuit does not need to be replaced, and replacement cost is lower.

Description

technical field [0001] The application relates to the field of automotive electronics, in particular to a xenon lamp-to-LED adaptation circuit, an LED adaptation module and an LED module. Background technique [0002] Since the invention of HID xenon lamps for vehicles in the 1990s, HID has been the first choice for high-end automotive headlights due to its high brightness, long life, complex circuits, and high cost. Due to maturity and cost reduction, the current high-end vehicles have begun to replace the original HID headlights with LEDs, and it is an inevitable trend to replace HIDs with LEDs. [0003] Since the installation of HID, more than 10 million vehicles are equipped with HID headlights every year. At present, there are more than 300 million vehicles equipped with HID in the world. HID bulbs are consumables, and their nominal service life is 2000 hours. D1, D2 series HID bulbs contain mercury and other harmful substances. Later D3, D4, D5, D8 series HID bulbs ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/14H05B45/30H05B45/345H05B45/325H05B45/56
CPCH05B41/14H05B45/30H05B45/345H05B45/325H05B45/56
Inventor 林华木
Owner 广州纽威光电科技有限公司