Apparatus of a progressive indicator, especially for a car headlight or lamp

Patent metadata

Field	Value
Publication number	US-9789806-B2
Application number	US-201715445192-A
Country	US
Kind code	B2
Filing date	Feb 28, 2017
Priority date	Mar 1, 2016
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

The apparatus of a progressive direction indicator, especially for a car headlight or lamp, comprises the main connector ( 1 ) as the input electric interface, an LDM power supply module ( 2 ) for the power supply of the LED light sources ( 7 ), an LED board ( 4 ) where the LED light sources are mounted, and an interface ( 3 ) interconnecting the LDM power supply module with the LED board. The apparatus further comprises a current controller ( 9 ) for setting the current of the LED light sources, with the LDM power supply module comprising a DC/DC converter ( 5 ) generating the output voltage V out, which is the voltage source for the LED board. The LED board comprises discrete switching elements ( 8 ) for switching of individual LED light sources depending on the input voltage, so that the LED light sources are sequentially switched depending on the output voltage V out.

First claim

What is claimed as the invention is:

1. An apparatus of a progressive direction indicator, especially for a car headlight or lamp, comprising a main connector ( 1 ) as an input electric interface, an LDM power supply module ( 2 ) for power supply of LED light sources ( 7 ), an LED board ( 4 ) where the LED light sources ( 7 ) are mounted, and an interface ( 3 ) interconnecting the LDM power supply module ( 2 ) with the LED board ( 4 ), wherein the apparatus further comprises a current controller ( 9 ) for setting the current of the LED light sources ( 7 ), wherein the LDM power supply module ( 2 ) comprises a DC/DC converter ( 5 ) generating output voltage V out, which is the voltage source for the LED board ( 4 ), and wherein the LED board ( 4 ) comprises discrete switching elements ( 8 ) for switching of individual LED light sources ( 7 ) depending on the input voltage, so that the LED light sources ( 7 ) are adapted to be sequentially switched depending on the output voltage V out.

2. The progressive direction indicator apparatus in accordance with claim 1 , wherein the switching elements ( 8 ) are transistors.

3. The progressive direction indicator apparatus in accordance with claim 1 , wherein the LDM power supply module ( 2 ) further comprises a u-controller ( 6 ) to control the amount of the output voltage generated by the DC/DC converter ( 5 ).

4. The progressive direction indicator apparatus in accordance with claim 1 , wherein the current controller ( 9 ) is mounted on the LED board ( 4 ).

5. The progressive direction indicator apparatus in accordance with claim 1 , wherein the current controller ( 9 ) is part of the LDM power supply module ( 2 ).

6. The progressive direction indicator apparatus in accordance with claim 1 , wherein the u-controller ( 6 ) is also configured with the use of A/D inputs from the current controller ( 9 ) to control a switching sequence of the LED light sources ( 7 ) and/or to detect damage of the LED light sources ( 7 ).

Assignees

• Varroc Lighting Systems Sro

Inventors

• Svrcek Martin
• Teska Tomas

Classifications

• B60Q1/38

  using immovably-mounted light sources, e.g. fixed flashing lamps · CPC title

• B60Q1/34

  for indicating change of drive direction (B60Q1/22 takes precedence) · CPC title

• B60Q1/382

  Electronic temporisation with semiconductor amplification · CPC title

• B60Q1/0088

  Details of electrical connections (B60Q1/305 takes precedence; electrical connection of the light source itself F21S41/192, F21S43/195) · CPC title

• B60Q1/04

  the devices being headlights · CPC title