A new low voltage DCVSL circuit based on Wilson current mirror

A current mirror and circuit technology, applied in CAD circuit design, electrical digital data processing, special data processing applications, etc., can solve disaster static power consumption and other problems, achieve low power consumption, prevent static power consumption, and increase switching speed Effect

Pending Publication Date: 2019-02-01
HOHAI UNIV CHANGZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when MP1 and PDN1 are turned on at the same time, a short-circuit current is generated, resulting in catastrophic static power dissipation

Method used

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  • A new low voltage DCVSL circuit based on Wilson current mirror
  • A new low voltage DCVSL circuit based on Wilson current mirror
  • A new low voltage DCVSL circuit based on Wilson current mirror

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. 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.

[0032] The purpose of the present invention is to provide a low-power DCVSL circuit that can work normally under low voltage. The circuit structure of the technical solution proposed by the present invention is as follows: Figure 4 As shown, a new low-voltage DCVSL circuit based on Wilson current mirror includes a pull-up network and a pull-down network. The pull-up network includes three PMOS devices MP1-MP3, and the pull-down networks PDN1 and PDN2 are composed of NMOS devices. In...

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Abstract

The invention discloses a novel low-voltage DCVSL circuit based on Wilson current mirror, comprises a pull-up network and a pull-down network, wherein the pull-up network comprises three PMOS devicesMP1 to MP3, and the pull-down network comprises a pull-down network PDN1 and a pull-down network PDN2, wherein the PDN1 and the PDN2 are composed of NMOS devices; The source of MP1 and MP2 is connected with high supply voltage. The drain of MP1 is connected to the source stage of MP3, the drain of MP3 is connected to the pull-down network PDN1, and the other end of PDN1 is grounded. The drain of MP2 is connected to the pull-down network PDN2, and the other end of PDN2 is grounded. The gates of MP1 and MP2 are connected to the drain of MP3 and the pull-down network PDN1, and the gates of MP3 are connected to the drain of MP2 and the pull-down network PDN2. The invention solves the stability problems of the conventional DCVSL circuit under the switching speed, the power consumption and the sub-threshold region.

Description

technical field [0001] The invention relates to a DCVSL circuit, in particular to a novel low-voltage DCVSL circuit based on a Wilson current mirror, and belongs to the field of integrated circuit design. Background technique [0002] There are currently three main DCVSL design circuits: traditional DCVSL circuits, stacked PMOS cross-coupled DCVSL circuits, and current mirror-based DCVSL circuits. figure 1 Shown is the traditional DCVSL circuit structure. In this structure, two concepts are utilized simultaneously: differential logic and positive feedback. Differential logic is a circuit with complementary inputs and outputs. The DCVSL pull-up network consists of two cross-coupled PMOS devices MP1, MP2. The cross-coupled positive feedback mechanism ensures that the devices are fully turned off when not needed, eliminating static power dissipation and providing rail-to-rail voltage swing at the output. The disadvantage of this structure is that due to the weak pull-down ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/39G06F30/20
Inventor 曹元韩丽娟葛惟唯
Owner HOHAI UNIV CHANGZHOU
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