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A multi-detection point voltage detection circuit for energy harvesting system

An energy collection and detection point technology, applied in the field of electronics, can solve the problems of inconvenient expansion, detection errors, complex structure, etc., to achieve the effect of satisfying high accuracy, reducing system power consumption, and optimizing overall performance

Inactive Publication Date: 2019-01-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional voltage detection circuit can only have one detection point, the structure is relatively complicated, and it is not convenient to expand
Moreover, traditional voltage detection circuits often flip over by mistake when the voltage is very low, resulting in detection errors

Method used

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  • A multi-detection point voltage detection circuit for energy harvesting system
  • A multi-detection point voltage detection circuit for energy harvesting system
  • A multi-detection point voltage detection circuit for energy harvesting system

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing, describe technical scheme of the present invention in detail:

[0011] figure 1 Shown is the overall block diagram of the voltage detection circuit of the present invention. The voltage detection circuit is composed of a voltage reference, a resistor divider array, an inverter for voltage comparison, a level shift module and a digital correction logic part. The resistor divider array consists of n+2 series resistors, and the specific number varies according to application requirements. One end of the first resistor R0 is connected to a node in the circuit where voltage needs to be detected, and one end of the last resistor Rn+1 is grounded. The resistor voltage divider array generates n+1 voltage divider nodes, which are respectively node1, node2, and noden+1. The node1 node is connected to the Vdd terminal of the inverter comp1 used for voltage comparison, the node2 node is connected to the Vdd terminal of the inverter ...

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Abstract

The invention belongs to the field of electronic technology, and relates to a multi-detection-point voltage detection circuit used in an energy collection system. The invention includes: resistor voltage divider array, voltage reference, inverter for voltage comparison, level shift circuit and digital correction logic. Specifically, the multi-detection point voltage detection of the same detected voltage is realized simultaneously by using a voltage dividing resistor, a voltage reference and multiple inverters for voltage comparison; using digital correction logic, the traditional voltage detection circuit is eliminated. Bad output when very low. The technology belongs to the field of power electronics and can be used in low-voltage, low-power applications including energy harvesting.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to a multi-detection-point voltage detection circuit used in an energy collection system. Background technique [0002] With the wide application of wearable mobile computing devices in the field of medical care, health and consumer electronics, people put forward higher requirements for the battery life of wearable devices. The battery life of the device not only depends on the application level of low power consumption technology in the device, but also is limited by the performance of the lithium battery or other power supply circuits. [0003] Energy harvesting technology is a technology that converts energy in the environment, such as solar energy, thermal energy, mechanical energy or battery energy, into electrical energy and uses it to finally power electronic devices. Its application can provide high battery life for wearable devices. Due to the influence of the external ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00
CPCG01R19/0084
Inventor 罗萍郑心易王远飞杨朋博
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA