Emergency power supply capable of outputting multiple voltages and control method thereof

Abstract

According to the emergency power supply capable of outputting multiple voltages and the control method of the emergency power supply, each power supply assembly is used for outputting a specific voltage value, and two ends of each power supply assembly are directly or indirectly electrically connected with one output end of the emergency power supply; the switch assembly comprises at least one electric control switch; the electric control switch is connected in series between one power supply assembly and the output end of the emergency power supply and/or between different power supply assemblies; an input end of the switch control circuit receives a voltage switching signal; an output end of the switch control circuit outputs a switch control signal corresponding to the voltage switchingsignal to the controlled end of each electric control switch; and each electric control switch is switched on or off under the control of a switch control signal, so that different power supply assemblies are connected in series or in parallel, and an output end of the emergency power supply can output different voltage values. According to the emergency power supply, a user can realize the output of different voltage values by using only one emergency power supply, and use conditions of various carrying tools can be met at the lowest cost.

Description

technical field [0001] The invention relates to the field of electrical control and application, in particular to an emergency power supply capable of outputting multiple voltages and a control method thereof. Background technique [0002] All existing vehicles that rely on the engine to start and work, such as motorcycles, yachts, family cars and trucks, etc., all need to be provided with a built-in battery to start the engine. However, if the built-in battery fails or loses power or in cold weather, the engine cannot be started for a long time, so that the vehicle cannot operate normally, which brings a lot of inconvenience to life. [0003] In response to this phenomenon, an emergency power supply can be used instead of the built-in battery to provide electrical energy to ensure that the engine and vehicles can be used normally. But the emergency power supply in the prior art cannot be applicable to the situation of multiple vehicles, for example, for automobiles, some a...

AI Technical Summary

Problems solved by technology

But the emergency power supply in the prior art cannot be applicable to the situation of multiple vehicles, for example, for automobiles, some automobiles need an emergency power supply of 12V, and some automobiles need an emergency power supply of 24V, while the emergency power supply in the prior art can only To provide electric energy for one type of vehicle requires users to equip different types of emergency power supplies for vehicles with different needs, which brings inconvenience to users and increases the cost of use

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