Pulse type micro-energy power supply management circuit based on passive peak detection
A peak detection and power management technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve problems such as practical limitations and poor versatility, and achieve the effect of improving practicality, simple structure and good versatility
Active Publication Date: 2020-10-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
However, in common circuits, the power management method based on mechanical switches needs to be specially designed for the structure and application environment of the generator, which has poor versatility.
A power management circuit using an electronic switch requires an additional power supply to power the switching circuit, and its practicability is limited due to its internal leakage current
Method used
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Embodiment
[0031] Embodiment: the pulse-type micro-energy power management circuit based on passive peak detection, such as figure 1 As shown, it includes a rectifier circuit connected in series, a switch circuit based on passive peak detection, a step-down circuit and an energy storage module.
[0032] Such as figure 1 and figure 2 As shown in , the rectifier circuit adopts a bridge rectifier bridge, which is electrically connected to the back end of the pulse-type micro-energy, receives the AC pulse output by the pulse-type micro-energy, and outputs the rectified unidirectional pulse.
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The invention discloses a pulse type micro-energy power supply management circuit based on passive peak detection, and relates to the field of micro-energy management. According to the technical scheme, the micro-energy power supply management circuit is characterized by comprising a rectifying circuit, a voltage reducing circuit and an energy storage module which are connected in sequence; a switching circuit based on passive peak detection is arranged between the rectifying circuit and the voltage reducing circuit; the switching circuit based on passive peak detection comprises a passive peak detection circuit and an electronic switch; the passive peak detection circuit is used for carrying out pulse detection on the one-way pulse signal output by the rectifying circuit and sending a switch control signal to the electronic switch when the one-way pulse signal reaches a peak value; and the electronic switch is connected in series between the rectifying circuit and the voltage reducingcircuit, and is used for conducting the rectifying circuit and the voltage reducing circuit to realize maximum energy transfer after the switch control signal is closed, so that the universality andthe energy conversion efficiency of the circuit are improved on the basis of realizing circuit self-driving.
Description
technical field [0001] The invention relates to the field of energy management of micro-energy sources, more specifically, it relates to a pulse-type micro-energy power management circuit based on passive peak detection. Background technique [0002] With the continuous development of electronic technology towards miniaturization and integration, traditional energy supply devices have become a bottleneck in the development of electronic technology due to their non-renewable, large volume, and repeated charging. Micro-energy technology collects energy in the environment to continuously supply energy for electronic equipment. It has the characteristics of high energy density, no pollution, strong environmental adaptability, and easy integration. It has broad development prospects in consumer electronics, aerospace, and environmental monitoring. . However, due to problems such as impedance matching, output voltage and frequency instability, it is difficult for the common micro...
Claims
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IPC IPC(8): H02J7/32H02M7/04
CPCH02J7/32H02M7/04H02J2207/20H02J2207/50
Inventor 张晓升张艺潇李愿芳龚天巡黄文钱恒毅王硕
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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