A parallel mode and series mode switching circuit based on supercapacitor
A supercapacitor and switching circuit technology, which is applied in charge balancing circuits, battery circuit devices, circuit devices, etc., can solve the problems of uneconomical, low energy utilization, and difficult design, and improve application reliability and structure. Simple, avoids the effect of voltage imbalance
Inactive Publication Date: 2018-11-23
BEIJING JIAOTONG UNIV
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Problems solved by technology
However, since each supercapacitor has an energy-consuming element connected in parallel with it, the energy utilization rate is low, so this method is not very economical.
For the switching inductance method and the flying capacitor method, the inductance or capacitance is used as a medium to balance the energy of supercapacitors with different voltages, but this method has a complicated structure and is difficult to design
Therefore, a new type of circuit is needed to solve the problem of voltage imbalance when supercapacitors are charged and discharged in series
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[0030] The detailed description follows with reference to the accompanying drawings, which form a part hereof and, in the present invention, are shown by way of explanation of specific embodiments for carrying out the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. For example, features explained or described for one embodiment can be used on or in combination with other embodiments to yield a still further embodiment. It is intended that the present invention includes such modifications and variations. These examples were described with specific language, but they should not be construed as limiting the scope of the appended claims. For purposes of clarity, corresponding elements are denoted by the same reference numerals in the different drawings unless otherwise specified.
[0031] The terms "having", "containing", "including", "comprising" and...
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The invention discloses a super-capacitor-based parallel mode and series mode switching circuit, which comprises a trigger module (102) and an array module (103), wherein a control signal M(101) for controlling parallel mode and series mode switching passes through the trigger module (102) and then obtains a first drive voltage and a second drive voltage; the first drive voltage is used for driving the switching circuit to work in a parallel mode; and the second drive voltage is used for driving the switching circuit to work in a series mode, so that control on the parallel mode and series mode switching of super-capacitors by the single control signal M(101) is achieved. The super-capacitors are charged and discharged by the super-capacitor-based parallel mode and series mode switching circuit; the condition of voltage unbalance of the super-capacitors in the series charging process can be avoided; and the application reliability of a super-capacitor bank is improved.
Description
technical field [0001] The invention relates to the technical field of microelectronic devices, in particular to a parallel mode and series mode switching circuit based on a supercapacitor. Background technique [0002] Supercapacitor is an emerging energy storage device. Compared with traditional energy storage components such as lead-acid batteries, it has the characteristics of high energy density, high power density and short-term discharge. However, due to the low withstand voltage of supercapacitors and the capacity of supercapacitors in the same production batch is often difficult to ensure that they are exactly the same, in order to obtain high-voltage energy storage components, supercapacitors need to be used in series. If supercapacitors with different capacitances are simply connected in series without protection for charging and discharging, it is easy to cause overcharging and overdischarging of supercapacitors, and even cause supercapacitors to explode and dama...
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IPC IPC(8): H02J7/00
CPCH02J7/0014H02J7/0016
Inventor 龚浩岳海维笑巩天伟宫辉窦征角宏林孟天泽
Owner BEIJING JIAOTONG UNIV