CMOS rectifying circuit and implantable instrument

Abstract

The embodiment of the invention provides a CMOS rectifying circuit. The CMOS rectifying circuit comprises a circuit input end; a circuit output end; a load capacitor which is respectively connected with the input end and the output end; a first PMOS power tube and a second PMOS power tube; a first NMOS power tube and a second NMOS power tube; a first comparator circuit and a second comparator circuit; a first dynamic bias circuit and a second dynamic bias circuit; and a first phase inverter and a second phase inverter; wherein a grid electrode of the first PMOS power tube is connected with thefirst comparator circuit, and a grid electrode of the second PMOS power tube is connected with the second comparator circuit; the first dynamic bias circuit is connected with the first comparator circuit; the second dynamic bias circuit is connected with the second comparator circuit; grid electrodes of the first NMOS power tube and the second NMOS power tube are in cross connection; a grid electrode of the first NMOS power tube is connected with an output rear end of the second phase inverter; and a grid electrode of the second NMOS power tube is connected with an output rear end of the first phase inverter. The embodiment of the invention further provides an implantable instrument.

Description

technical field [0001] The invention relates to the technical field of circuits, in particular to a CMOS (Complementary Metal Oxide Semiconductor) rectifier circuit and an implanted instrument. Background technique [0002] With the development of information technology, the role of active implantable medical devices in clinical application is becoming more and more important, and it plays an important role in the process of disease diagnosis and treatment. For example, artificial retina, capsule endoscope, implantable neurostimulator, etc. These active devices are implanted into the human body through certain operations. Due to the limited size of the device and the limited capacity of the battery, the energy supply of the device becomes a great constraint. Wireless energy transfer technology provides an effective way for the energy supply of implantable medical devices. Active implantable devices are powered by electromagnetic induction, in which a coil located outside t...

AI Technical Summary

Problems solved by technology

These active devices are implanted into the human body through certain operations. Due to the limited volume of the device and the limited capacity of the battery, the energy supply of the device becomes a great constraint factor.

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