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Low-voltage started micro-energy collection and management system with voltage monitoring function

A low-voltage start-up and voltage monitoring technology, applied to electric vehicles, battery circuit devices, collectors, etc., can solve problems such as slow enough to meet the normal power consumption of the system load chip, abnormal system operation, etc.

Active Publication Date: 2020-05-12
湖北集慧科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At the same time, when the existing micro-energy collection management system is working, the system load chip and other chips are often working all the time. When the system collects energy slowly, it is very slow to meet the normal power consumption of the system load chip, which leads to the failure of the system to work. abnormal

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  • Low-voltage started micro-energy collection and management system with voltage monitoring function
  • Low-voltage started micro-energy collection and management system with voltage monitoring function
  • Low-voltage started micro-energy collection and management system with voltage monitoring function

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Embodiment Construction

[0065] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0066] refer to figure 1 , figure 1 It is the circuit schematic diagram of the first embodiment of the micro-energy collection management system with low-voltage start and voltage monitoring function (the crosses under Q5 are not connected together), the micro-energy of this embodiment can be started at 0.7V, 360nA The collection and management system includes: a first energy storage device C1, a first voltage monitoring chip U1, a first N-type switch tube Q1, a first pull-up resistor R1, a first P-type switch tube Q2, a second N-type switch tube Q3, Input capacitor C2, DC / DC conversion chip U2, second energy storage device C3, second P-type MOS transistor Q4, second voltage monitoring chip U3, second pull-up resistor ...

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Abstract

The invention discloses a low-voltage started micro-energy collection and management system with a voltage monitoring function, which realizes a micro-energy collection and power supply management system capable of being started at 0.7 V and 360 nA, reduces the energy collection starting power to 0.52 [mu]W, and can significantly improve the sensitivity of energy collection. The system can be usedfor energy collection in environments with weak illumination, low vibration intensity, small temperature difference and the like, and is particularly suitable for a scene based on radio frequency energy collection; tests show that the minimum radio frequency input power capable of operating is-20.5 dBm at 915 MHz, and the space range of radio frequency energy collection can be effectively expanded; and meanwhile, a voltage monitoring function is added, so that normal power utilization of the system is ensured.

Description

technical field [0001] The invention relates to the field of micro-energy collection, and more specifically relates to a micro-energy collection management system with low-voltage startup and voltage monitoring function. Background technique [0002] Energy harvesting is a key technology to enable long-term maintenance-free operation of low-power circuit systems such as passive IoT. By capturing these energies in the environment, such as lighting, temperature differences, vibrations, and electromagnetic waves (radio frequency energy), low-power electronics can function properly. Among these micropower sources, energy from RF transmitters has unique advantages, including predictable and consistent power over distance, enabling passive IoT away from the constraints of batteries and wired power. [0003] Capturing ambient RF energy is now available from tens of billions of wireless transmitters around the world, and the number is growing, including mobile phones, handheld radi...

Claims

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Application Information

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IPC IPC(8): H02J50/20H02J50/90H02J50/80H02J7/04H02J7/34
CPCH02J50/20H02J50/90H02J50/80H02J7/345
Inventor 谢桂辉焦向开徐浪魏权刘子扬
Owner 湖北集慧科技有限公司