Automobile startup power supply with voltage detection function

Abstract

The invention discloses an automobile startup power supply with a voltage detection function. The automobile startup power supply comprises an MCU, a temperature detection circuit, an overload protection circuit, an automobile voltage detection circuit, an undervoltage protection circuit, a 12V power supply and a driving circuit, wherein the MCU is respectively connected with a reverse-connection prevention detection circuit, a short-circuit prevention detection circuit, an overvoltage protection circuit, the temperature detection circuit, the overload protection circuit, the automobile voltage detection circuit, an LCD driving circuit, a power supply circuit, a timing module and a driving circuit; and the driving circuit is also respectively connected with a power output, the 12V power supply and the timing module. The automobile startup power supply with the voltage detection function can directly measure the voltage of a battery unit of an automobile and display the voltage on an LCD screen to give a user a visual data. The user can utilize the voltage as reference to quickly determine whether the automobile can not be started is caused by undervoltage of the battery unit. A multifaceted fault detection and reminding function brings the user a safe experience and avoids unnecessary accidents.

Description

technical field [0001] The invention relates to a power supply, in particular to a vehicle starting power supply with a voltage detection function. Background technique [0002] First of all, we know that there are many reasons why the car cannot be started, such as battery loss, electronic circuit failure, etc. Users have no way of knowing whether the car cannot be started due to battery loss. Secondly, does the starting power itself have a protection function and whether the protection function is perfect, and whether there is a corresponding alarm function when the user connects incorrectly? This directly affects the convenience of using the whole product and the safety of operation. [0003] According to the survey, none of the existing emergency starters on the market can provide the function of measuring the voltage of the car battery, which means that the user cannot judge whether the car cannot be started because the battery is low. If it is not because of power lo...

AI Technical Summary

Problems solved by technology

[0002] First of all, we know that there are many reasons why the car cannot be started, such as battery loss, electronic circuit failure, etc. Whether it is due to battery loss or not, the user has no way to know

Secondly, does the starting power itself have a protection function and whether the protection function is perfect, and whether there is a corresponding alarm function when the user connects improperly? This directly affects the convenience of using the entire product and the safety of operation

[0003] According to the survey, none of the existing emergency starting power supplies on the market can provide the function of measuring the voltage of the car battery, which means that the user cannot judge whether the car cannot be started due to the battery loss.

If it is not due to power loss and cannot be started, forcibly using the emergency starter power supply to start the car may cause greater damage to the car itself, which is the result that everyone does not want to see

[0004] At present, almost all emergency start-up power supplies on sale have a single function, and most of the products do not have or lack the necessary safety protection and corresponding alarm function, so users have many inconveniences in use.

Some cheap products are scrapped immediately after one use

Images