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Circuit for realizing different topological structures through different patch modes

A topology and circuit technology, applied in electrical components and other directions, can solve problems such as time-consuming and increase the cost of circuit board design, and achieve the effect of simplifying circuit structure, reducing labor, and improving design methods.

Pending Publication Date: 2020-05-15
CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the application of LED light source technology in car lights more and more widely, different car lights have different numbers of LEDs. The circuit design method is to design the circuit according to the voltage range required by the LED in this circuit. Several different The voltage range requires the design of several different hardware circuits, through cumbersome resistor voltage division and other methods, which not only increases the design cost of the circuit board, but also time-consuming

Method used

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  • Circuit for realizing different topological structures through different patch modes
  • Circuit for realizing different topological structures through different patch modes
  • Circuit for realizing different topological structures through different patch modes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] By mounting the first resistor R2 and the fourth resistor R4 on the circuit board, a booster circuit is formed. This circuit structure is used when the voltage value required by a large number of LEDs is higher than 24V. The specific circuit structure is as follows:

[0022] The topology switching circuit 3 includes n LEDs, a second resistor R2 and a fourth resistor R4. The n LEDs are connected in series to form an LED string, the anode of the LED string is connected to the positive power supply voltage LED+, the cathode of the LED string is connected to the negative power supply voltage LED-, and the LED string The anode of the LED string is connected to one end of the second resistor R2, the cathode of the LED string is connected to the other end of the second resistor R2 and one end of the fourth resistor R4, and the other end of the fourth resistor R4 is grounded to GND.

Embodiment 2

[0024] By attaching the first resistor R1 and the third resistor R3 on the circuit board, a step-down circuit is formed. This circuit structure is used when the voltage value required by a small number of LEDs is lower than 9V. The specific circuit structure is as follows:

[0025] The topology switching circuit 3 includes n LEDs, a first resistor R1 and a third resistor R. The n LEDs are connected in series to form an LED string, the anode of the LED string is connected to the positive power supply voltage LED+, the cathode of the LED string is connected to the negative power supply voltage LED-, and the LED string The anode of the LED string is connected to one end of the first resistor R1, the cathode of the LED string is connected to one end of the third resistor R3, and the other end of the first resistor R1 is connected to the other end of the third resistor R3.

Embodiment 3

[0027] By mounting the second resistor R2 and the third resistor R3 on the circuit board, a step-up / down circuit is formed. This circuit structure is used when the voltage on the LED is between 9V and 24V. The specific circuit structure is as follows:

[0028] The topology switching circuit 3 includes n LEDs, a second resistor R2 and a third resistor R. The n LEDs are connected in series to form an LED string, the anode of the LED string is connected to the positive power supply voltage LED+, the cathode of the LED string is connected to the negative power supply voltage LED-, and the LED string The anode of the LED string is connected to one end of the second resistor R2, the cathode of the LED string is connected to one end of the third resistor R3, and the other end of the second resistor R2 is connected to the other end of the third resistor R3.

[0029] To sum up, compared with the traditional hardware circuit connection method, the present invention has a greater cost red...

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Abstract

The invention discloses a circuit for realizing different topological structures through different patch modes, and belongs to the technical field of automobile lamp comprehensive control. The circuitcomprises an anti-reverse filter circuit, a pi-type filter circuit, a topology switching circuit, a sampling circuit, an overvoltage protection circuit and an IC circuit. According to the invention,the design of the resistor placement position in the topology switching circuit is mainly reflected, the requirement for the voltage range in an actual circuit is met in a chip mounting mode for different resistors, the difficulty of the design process is effectively reduced, it is avoided that different hardware circuits are designed by considering the situation that different voltages are neededby different numbers of LEDs all the time in the design process, the manpower and financial resources are greatly reduced, and the working efficiency is improved, so that compared with the traditional circuit design mode, the circuit design mode of the invention is better improved, the circuit structure is simplified, and the practicability is better.

Description

technical field [0001] The invention belongs to the technical field of comprehensive control of automobile lamps, in particular to a circuit realizing different topological structures through different patching methods. Background technique [0002] With the application of LED light source technology in car lights more and more widely, different car lights have different numbers of LEDs. The circuit design method is to design the circuit according to the voltage range required by the LED in this circuit. Several different The voltage range requires the design of several different hardware circuits, through cumbersome resistor voltage division and other methods, which not only increases the design cost of the circuit board, but also takes time. Contents of the invention [0003] In order to solve the above problems, the present invention provides a circuit that realizes different topological structures through different patching methods, and achieves the voltage value requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/54
Inventor 柴正张盼徐宝奇夏承军
Owner CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD