Power supply device with protective function

Abstract

The invention relates to a power supply device with a protective function. The power supply device comprises: a magnetic capacitor unit, which is used for storing electric energy and is provided witha first end and a second end; a first operating switch, which electrically connects a first node to the first end of the magnetic capacitor unit in a switchable mode; a second operating switch, whichelectrically connects a second node to the second end of the magnetic capacitor unit in a switchable mode; and an isolating switch, which electrically connects the first node to the second node in a switchable mode. When the magnetic capacitor unit is in a working mode and goes wrong, the isolating switch is turned on, but the first operating switch and the second operating switch are not turned on, so that the first node is electrically connected with the second node to isolate the magnetic capacitor going wrong, and then other circuit elements are not influenced by the magnetic capacitor going wrong. Thus, the power supply device is very practical.

Description

technical field [0001] The invention relates to a power supply device with protection function, in particular to a power supply device which uses a magnetic capacitance unit as a power supply and when a magnetic capacitance fails, the faulty magnetic capacitance can be isolated to protect other circuit components. Background technique [0002] Nowadays, energy storage components are widely used in home appliances, handheld devices, such as mobile phones (Mobile Phone), personal digital assistants (Personal Digital Assistant, PDA) and vehicles, etc., to meet people's demand for independent energy systems . Energy storage components in a narrow sense mainly refer to batteries, including primary batteries and secondary battery products; while energy storage components in a broad sense refer to all components with energy storage functions, including capacitors and inductors for temporary energy storage, and a dielectric A super capacitor between the battery and the capacitor is...

AI Technical Summary

Problems solved by technology

However, supercapacitors have chemical properties due to their chemical materials, and are prone to leakage, and because of the fast discharge rate due to some physical properties, they will soon run out of power under the aforementioned two factors, and Limited by the decomposition voltage of the electrolyte (aqueous electrolyte 1V, organic electrolyte about 2.5V), its withstand voltage is low, coupled with the cost of electrode materials, supercapacitors have a higher price-to-energy ratio than other capacitors and batteries

[0006] The technology of general energy storage components cannot achieve the advantages of long life (high charge and discharge times), high energy storage density, instantaneous high power output, fast charge and discharge, etc., and the current secondary batteries and supercapacitors require electrolyte Storing electrical energy in a chemical way cannot be manufactured under the general semiconductor manufacturing process of today. Therefore, once the packaging is completed, the capacity of storing electrical energy is not easy to change, and the surrounding related circuits are also less flexible in planning. Therefore, now There are still improvements in technology

[0007] It can be seen that the above-mentioned existing energy storage elements obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. Urgent problem

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