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AC-DC Converter with Gate Bias and Substrate Bias

A technology of AC, DC, and grid biasing, which is applied in the direction of converting AC power input to DC power output, output power conversion devices, electrical components, etc., and can solve the problems of rough threshold compensation value, inability to realize threshold compensation, singleness, etc.

Active Publication Date: 2020-01-21
HUADA SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

It can be seen from the above that the threshold voltage compensation value of the gate bias scheme is to (where K is an integer), such a threshold compensation value is obviously relatively rough and single, and cannot achieve fine threshold compensation, so it cannot be applied to many applications requiring finer threshold compensation

Method used

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  • AC-DC Converter with Gate Bias and Substrate Bias
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  • AC-DC Converter with Gate Bias and Substrate Bias

Examples

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Embodiment Construction

[0054] figure 1 A first implementation of a forward AC-DC conversion circuit 100 with gate bias and substrate bias according to the present invention is shown. Its characteristics are that, firstly, the circuit 100 is a forward AC-DC conversion circuit, that is, the voltage of each rectification amplifier stage increases step by step, and secondly, the circuit 100 is K-order substrate threshold voltage compensation and P-order gate voltage compensation; Furthermore, circuit 100 is based on nMOSFETs. Therefore, the circuit 100 is a circuit of a forward RF DC converter with N-level P-level gate threshold voltage compensation and K-level substrate threshold voltage compensation based on nMOSFET. It should be noted here that although the input voltage is shown here as a radio frequency input voltage (RFIN), this is only exemplary. In other embodiments, the input voltage can also be other alternating voltages, such as microwave voltage, grid AC change voltage etc. Additionally, ...

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Abstract

The invention relates to an alternating current / direct current converter with gate bias and substrate bias. Through the alternating current / direct current converter, a MOSFET is used to realize the converter circuit, and the threshold voltage of the MOSFET is compensated. Finer threshold compensation can be realized, which reduces cost and meets the threshold voltage requirement of more applications.

Description

technical field [0001] The present invention generally relates to the field of electronic circuits, and more specifically relates to an AC-DC converter with gate bias and substrate bias. Background technique [0002] AC-DC converters for converting AC signals into DC current or voltage are widely used in various fields, such as power supply fields, automotive fields, clean energy fields, and the like. With different application fields, the structure and function of AC-DC converters are often quite different. [0003] In the field of radio frequency or microwave energy harvesting, the task of the AC-DC converter is to convert the radio frequency or microwave signal into a DC voltage, and in the process, amplify the voltage of the input signal. [0004] In the prior art, the structure of multi-stage capacitors and diodes is often used to realize AC-DC conversion, wherein each rectification and amplification stage has a capacitor and a diode, and each rectification and amplifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/217
CPCH02M7/217
Inventor 王伟印王永流李荣信
Owner HUADA SEMICON CO LTD
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