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Threshold compensation rectifying circuit

A technology of rectification circuit and threshold value compensation, which is applied in the direction of electrical components, AC power input conversion to DC power output, output power conversion device, etc., can solve the problems of low efficiency of rectification circuit and large reverse leakage of rectification device, etc., and achieve reduction Effects of small reverse leakage, reverse leakage suppression, reception sensitivity and conversion efficiency improvement

Active Publication Date: 2016-10-05
锐立平芯微电子(广州)有限责任公司
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems of large reverse leakage of the rectifier device and low efficiency of the rectifier circuit in the above-mentioned prior art, the purpose of the present invention is to provide a rectifier circuit with threshold compensation to realize a rectifier circuit with low threshold and high efficiency. Improving Receive Sensitivity and Efficiency of RF Energy Harvesting Systems

Method used

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] An embodiment of the present invention provides a threshold compensation rectification circuit, in which the rectification unit not only has a lower threshold, but also has a smaller reverse leakage, which can be used in a radio frequency energy harvesting system to improve the receiving sensitivity and efficiency of the system.

[0030] image 3 It is a structural schematic diagram of the threshold compensation rectification circuit of the present inve...

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Abstract

The invention discloses a threshold compensation rectifying circuit. The threshold compensation rectifying circuit includes N grades of complementary MOS rectifying units, a complementary MOS output rectifying unit, a load capacitor, and a load resistor, wherein each grade of complementary MOS rectifying unit is provided with a first input end, a second input end and an output end; the first input end of the current grade of complementary MOS rectifying unit is connected with the output end of the former-grade of complementary MOS rectifying unit; the second input end of the current grade of complementary MOS rectifying unit is connected with a first input signal or a second input signal; the output end of the current grade of complementary MOS rectifying unit is connected with the first input end of the next-grade of complementary MOS rectifying unit; the first input end of the first-grade of complementary MOS rectifying unit is connected with the ground; the output end of the last-grade of complementary MOS rectifying unit is connected with the input end of the complementary MOS output rectifying unit; the complementary MOS output rectifying unit is provided with an input end and an output end, and the output end is connected with an output signal; one end of the load capacitor is connected with the output signal, and the other end of the load capacitor is connected with the ground; and one end of the load resistor is connected with the output signal, and the other end of the load resistor is connected with the ground.

Description

technical field [0001] The invention relates to the technical field of integrated circuit design, in particular to a threshold compensation rectifier circuit. Background technique [0002] In recent years, the attention of energy harvesting technology has been increasing, especially in wireless sensor networks without battery power supply, a radio frequency energy harvesting system is needed to power sensor nodes, solve the power supply problem of wireless sensors, and prolong their use in low-maintenance environments. working life. [0003] A typical RF energy harvesting system consists of a receiving antenna, an impedance matching circuit, a rectifier circuit, a boost conversion circuit and an energy storage unit, such as figure 1 shown. The antenna receives the RF energy signal from the surrounding environment, passes the RF energy signal to the rectification circuit through the impedance matching network, the rectification circuit converts the RF signal into a usable D...

Claims

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Application Information

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IPC IPC(8): H02M7/217
Inventor 刘昱刘欣张海英
Owner 锐立平芯微电子(广州)有限责任公司
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