Special integrated circuit for vehicle flasher

Abstract

The invention discloses a special integrated circuit for a vehicle flasher. The integrated circuit comprises a power input terminal for supplying power, a power output terminal for supplying power to a peripheral circuit, a ground terminal, a peripheral RC (resistor-capacitor) oscillation circuit interface, a detection terminal, an output terminal and a circuit for integrating the following circuits: an oscillator, a frequency divider, a flash logic processing module, a comparator module, a drive circuit and a power. The integrated circuit is characterized in that the oscillator receives oscillation signals output by a peripheral RC oscillation circuit via the peripheral RC oscillation circuit interface to generate clock signals and outputs the clock signals to the frequency divider and the flash logic processing module; and the frequency divider receives the clock signals output by the oscillator, simultaneously receives reset signals output by the flash logic processing module, processes the clock signals and the reset signals to generate pulse signals and outputs the pulse signals to a flash logic processing circuit. The integrated circuit has the characteristics of good temperature property and high reliability, and can be widely applied to the flashers of vehicles, motorcycles and electric bicycles.

Description

technical field [0001] The invention relates to an integrated circuit, in particular to an integrated circuit for a vehicle flasher. Background technique [0002] Cars are an important means of transportation in modern times. The existing flashers include contact flashers and electronic flashers. Among them, the contact flasher controls the flasher frequency by adjusting the contact gap and the spring plate, but the long-term It is difficult to guarantee the stability and temperature change; the existing electronic flasher is composed of discrete circuits. In the MOSFET flasher of the separated circuit, because the flash frequency is very low, uF-level electrolytic capacitors must be used as oscillation timing capacitors; uF-level The temperature characteristic of the electrolytic capacitor is very poor, so that the temperature characteristic of the flash frequency of the flasher cannot be guaranteed. Contents of the invention [0003] The technical problem to be solved b...

AI Technical Summary

Problems solved by technology

[0002] Cars are an important means of transportation in modern times. The existing flashers include contact flashers and electronic flashers. Among them, the contact flasher controls the flasher frequency by adjusting the contact gap and the spring plate, but the long-term It is difficult to guarantee the stability and temperature change; the existing electronic flasher is composed of discrete circuits. In the MOSFET flasher of the separated circuit, because the flash frequency is very low, uF-level electrolytic capacitors must be used as oscillation timing capacitors; uF-level The temperature characteristics of electrolytic capacitors are very poor, so that the temperature characteristics of the flash frequency cannot be guaranteed

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