Lamp circuit with breathing effect

Abstract

The invention discloses a LOGO lamp circuit with breathing effect, comprising: a linear voltage stabilizer circuit module connected with an LIN transceiver circuit module, a single-chip microcomputerdetection control circuit module and an LED drive circuit module; a power voltage detection circuit module connected with a power voltage module and the single-chip microcomputer detection control circuit module; the LIN (local interconnect network) transceiver circuit module connected with a BCM (body control module) and the single-chip microcomputer detection control circuit module; an interiorambient temperature detection circuit module connected with the linear voltage stabilizer circuit module and the single-chip microcomputer detection control circuit module; the LED drive circuit module connected with the single-chip microcomputer detection control circuit module and an LED lamp and used to drive the LED lamp to change; the single-chip microcomputer detection control circuit moduleconnected with the LED drive circuit module and used to detect a signal and control the above modules. An automotive LOGO lamp is used herein to implement the functions, such as a position lamp, a charging indicator lamp, a breathing lamp, and a low battery warning indicator lamp, and the integrity is high.

Description

technical field [0001] The invention relates to the technical field of automobile lamps, in particular to a LOGO lamp circuit with a breathing effect. Background technique [0002] According to statistics from the Traffic Management Bureau of the Ministry of Public Security of my country: By the end of 2017, the number of cars in my country had reached 217 million, of which the number of new energy vehicles was only 1.53 million. In the face of such a huge use of fuel vehicles, as well as insufficient reserves of petroleum resources, dependence on imports, and exhaust pollution caused by the combustion process, my country has proposed a long-term strategy for the development of new energy vehicles and encouraged enterprises to develop and produce new energy vehicles. [0003] During the use of new energy vehicles, it is inevitable to need to be charged, so the body should have lights that can correctly indicate the battery power during charging. Secondly, considering that w...

AI Technical Summary

Problems solved by technology

Because one LIN RGB controller chip can only drive a string of RGB LEDs (up to three), when the LOGO light has dozens of LEDs, a lot of LIN RGB controllers will be needed in the circuit, and each LIN RGB The controller will occupy a LIN slave node (LIN slave node) to communicate with the body, so it will occupy a lot of BCM LIN slave (BCM, BodyControl Module, body control module) node resources

In addition, the maximum allowable current of the LED in this solution depends on the thermal resistance of the LIN RGB controller chip, and its maximum drive current capability is very limited

Images