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Electromagnetic piezoelectric composite type vibration energy conversion circuit

A vibration energy and circuit conversion technology, which is applied to battery circuit devices, electric vehicles, circuit devices, etc., can solve problems such as low energy utilization, up and down vibration, car bumps, and low power conversion efficiency, so as to improve energy conversion efficiency , to meet the voltage demand, the effect of stable power generation performance

Inactive Publication Date: 2014-11-19
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vibration is ubiquitous in nature, such as ocean wave fluctuations, up and down vibrations when people walk, car bumps, etc. Vibration energy harvesting can be divided into piezoelectric, electrostatic, magnetoelectric, etc., but currently energy harvesting devices can only collect Single energy, low energy utilization rate, low power conversion efficiency

Method used

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  • Electromagnetic piezoelectric composite type vibration energy conversion circuit

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Embodiment Construction

[0017] The technical solution will be described in detail below with reference to the accompanying drawings.

[0018] like figure 1 As shown, the circuit includes a piezoelectric energy collection and rectification circuit 1, an electromagnetic energy collection and rectification circuit 2, an energy storage circuit 3 and a voltage regulating circuit 4, a piezoelectric energy collection and rectification circuit 1, an electromagnetic energy collection and rectification circuit 2, and an energy storage circuit 3. The rectifier circuit 1 and 2 are used to convert the alternating current output by the electromagnetic and piezoelectric generator body into direct current, and the two parts of the electric energy are stored in the storage The energy circuit 3 is stored, and then adjusted and transformed by the voltage regulating circuit 4 to output the required voltage. The energy storage circuit 3 and the voltage regulating circuit 4 are connected by a non-reverse diode.

[0019] ...

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Abstract

The invention discloses an electromagnetic piezoelectric composite type vibration energy conversion circuit which comprises a piezoelectric energy collection rectification circuit (1), an electromagnetic energy collection rectification circuit (2), an energy storage circuit (3) and a voltage regulating circuit (4). The above four circuits are connected according to an electrical circuit mode to form the electromagnetic piezoelectric composite type vibration energy conversion circuit. The rectification circuits (1) (2) are used for converting alternating current outputted by electromagnetic and piezoelectric power generation bodies into direct current, two parts of electrical energy are stored in the energy storage circuit (3), and needed voltage is outputted after the conditioning voltage transformation of the voltage regulating circuit (4). According to the electromagnetic piezoelectric composite type vibration energy conversion circuit, the electromagnetic and piezoelectric energy collection modes are integrated, two types of energy are integrated to share the voltage regulating circuit, the complex degree of the circuit is low, the output power is greatly raised, and the efficiency of electrical energy conversion is improved.

Description

technical field [0001] The invention relates to a vibration energy conversion circuit, in particular to a self-powered circuit that utilizes piezoelectric effect and electromagnetic induction to extract environmental vibration energy. Background technique [0002] With the increasing scarcity of energy resources and the increasing awareness of human environmental protection, people's demand for reliable uninterrupted power is also increasing. Traditional and single power generation devices can no longer meet human needs. Hybrid energy harvesting devices are used in conjunction with supercapacitor circuits. , and store the collected environmental energy to supply power to the load. In some low-power devices such as wireless sensor network nodes or dangerous places such as flammable and explosive, the problem of battery replacement is even more difficult to solve. This unique self-powered system can replace batteries in many electronic devices. Vibration is ubiquitous in natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02M3/06
Inventor 桑英军范媛媛陈奇陈万宋振放高原曹阳黄振扬
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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