LM358: LED Headlamp control unit

Part Number: LM358
Other Parts Discussed in Thread: LM2904B-Q1, LM2904-Q1, LM2904BA-Q1

Tool/software:

Can you please send the LED Headlamp control unit (ie) it controls the  Low beam, High beam and Headlamp levelling 
Need Hardware Architecture and Hardware design circuit 

  • Hi Gobi, 

    Can you please send the LED Headlamp control unit (ie) it controls the  Low beam, High beam and Headlamp levelling 

    I am including some of LED headlamp design reference for your application. Since the request is a bit broad, I do not know how to answer your specific questions. 

    For LED headlamp control, you are likely need to have V-to-I control circuit to control the light beam intensity. You would need automotive grade op amp such as LM2904B-Q1, LM2904BA-Q1 or LM2904-Q1 op amp, see links below. 

    https://www.ti.com/product/LM2904B-Q1

    LED design resources. 

    https://www.ti.com/solution/automotive-headlight

    https://www.ti.com/video/6195174030001

    https://www.tij.co.jp/jp/lit/ug/tidude0/tidude0.pdf

    https://www.ti.com/video/series/led-driver-basics.html

    If you have specific questions, please let me know. 

    Best,

    Raymond

  • Need  manual Headlamp Levelling hardware design circuit inbuilt with Actuator

  • Hi Gobi, 

    Need  manual Headlamp Levelling hardware design circuit inbuilt with Actuator

    The manual headlamp leveling hardware design circuit consists of several parts. Each part of the circuit is supported by different entities at TI. 

    For instance, you are likely need to have following design circuits. 

    1. LED Headlamp will require V-to-I converter. To control the beam intensity, you would need to have variable current source. 

    2. with built-in actuator means that it may need to have a motor driver actuator that adjusting the headlamp's angle. 

    3. Manual headlamp leveling means that this has mechanical tilt mechanism - unless you you use motor to control the tilt. 

    4. The application will require power supply that controls voltage and current to the LED headlamp system.

    5. You would need optical lens system to transmit LED light source in distance

    control unit (ie) it controls the  Low beam, High beam and Headlamp levelling 

    This requirements may need MCU control. tilt sensor, PWM or digital communication protocol to interface with a motor driver actuator. 

    Here is the general  block diagram:  

    The HVA support team (that is I) may be able to help you in line item 1, if you have the V-to-I converter design requirements for the LED driver. We have no knowledges in other parts of design, and you have to figure it out on your own or see other TI teams for support. 

    If you have other questions, please let me know. 

    Best,

    Raymond

  • Hi Gobi, 

    I am going to close this query, since I have not heard from you. 

    If you have a design requirement for your LED application, I can help you. If you have additional questions, pleas let us know. 

    Best,

    Raymond