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Current flattening circuit, current compensation circuit and related control method

A technology of current compensation circuit and current circuit, which is applied in the direction of control/regulation system, regulation of electric variables, instruments, etc., and can solve problems such as leakage of current detection results

Active Publication Date: 2020-05-19
MACRONIX INT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chip 10 may include a core circuit 15, wherein the order in which the core circuit 15 executes instructions may be leaked by the current detection result of the ammeter 11

Method used

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  • Current flattening circuit, current compensation circuit and related control method
  • Current flattening circuit, current compensation circuit and related control method
  • Current flattening circuit, current compensation circuit and related control method

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Embodiment Construction

[0034] The disclosure proposes a current flattening circuit, a current compensation circuit, and a control method related thereto. The use of the current compensation circuit can keep the current deviation measured by the ammeter relatively stable.

[0035] In this paper, for the convenience of explanation, the node and the voltage on the node are represented by the same symbol. For example, the ground voltage and the ground voltage node are expressed as "Gnd".

[0036] See figure 2 , which is a schematic diagram illustrating that the system circuit includes a current flattening circuit and a core circuit. The system circuit 20 includes a core circuit 25 and a current flattening circuit 21 , and the power pin 23 of the system circuit 20 is electrically connected to a voltage source providing a supply voltage (Vsrc). The ammeter 22 is connected in series with the power pin 23 and is used to measure the supply current (Ivdd) flowing through the power pin 23 to obtain the ope...

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PUM

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Abstract

The invention discloses a current planarization circuit, a current compensation circuit and a control method related to the current planarization circuit and current compensation circuit. The currentplanarization circuit is electrically connected to a core node, and the current planarization circuit comprises a reference voltage regulator and the current compensation circuit. The reference voltage regulator generates a reference voltage, wherein the reference voltage is constant. The current compensation circuit is electrically connected with the core node and the reference voltage regulator.The current compensation circuit generates a compensation current according to a voltage difference between the reference voltage and a core voltage corresponding to the core node.

Description

technical field [0001] The present invention relates to a current flattening circuit, a current compensation circuit and a related control method, and in particular to a current flattening circuit, a current compensation circuit and a related method that can prevent the power consumption of the core circuit from being used for analysis control method. Background technique [0002] Semiconductors are widely used in many current electronic products, and security issues are becoming an important issue in designing embedded systems. [0003] See figure 1 , which is a schematic diagram of detecting the operation of the core circuit through the ammeter added between the voltage source and the chip. The power pin of the chip 10 receives a supply voltage (Vsrc) from a voltage source. The chip 10 may include a core circuit 15 , wherein the sequence of instructions executed by the core circuit 15 may be leaked by the current detection result of the ammeter 11 . [0004] Because th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 洪俊雄杨尚辑
Owner MACRONIX INT CO LTD
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