Fault injection circuit capable of isolating input/output interface

A technology of isolation input and output, fault injection, applied in the direction of logic circuit connection/interface layout, logic circuit coupling/interface using field effect transistors, etc. Flexibility, low cost, and the effect of automatic fault injection

Active Publication Date: 2015-03-18
BEIJING WATERTEK INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, there is no solution for fault injection of the output voltage of the isolated IO interface power supply circuit

Method used

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  • Fault injection circuit capable of isolating input/output interface
  • Fault injection circuit capable of isolating input/output interface
  • Fault injection circuit capable of isolating input/output interface

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0028] figure 1 A schematic structural diagram of an embodiment of a fault injection circuit for an isolated input-output interface provided by the present invention. figure 1 The fault injection circuit embodiment shown includes a voltage acquisition circuit and a voltage control circuit, wherein the first end of the voltage acquisition circuit and the voltage control circuit is electrically connected to the first end of the user power supply in the power supply circuit of the isolated input and output interface , the second end is electrically connected to the s...

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Abstract

The invention provides a fault injection circuit capable of isolating an input / output interface. The fault injection circuit comprises a voltage collection circuit and a voltage control circuit, wherein the first ends of the voltage collection circuit and the voltage control circuit are respectively electrically connected with the first end of a user power supply in a power circuit capable of isolating the input / output interface; and the second ends are both electrically connected with the second end of the user power supply in the power circuit capable of isolating the input / output interface; wherein the voltage collection circuit is used for collecting a voltage value of an input power supply in the power circuit capable of isolating the input / output interface; the voltage control circuit is used for controlling an output voltage of the power circuit capable of isolating the input / output interface according to the voltage value of the input power supply.

Description

technical field [0001] The invention relates to the field of electronic circuits, in particular to a fault injection circuit for isolating input and output interfaces. Background technique [0002] The isolated input-output (IO) interface is a commonly used interface in the control field, and is widely used in the control field of electronic equipment. However, there is no solution for fault injection to the output voltage of the isolated IO interface power supply circuit in the prior art. Contents of the invention [0003] The invention provides a fault injection circuit for isolating input and output interfaces, and the technical problem to be solved is how to implement fault injection for the output voltage of the isolated IO interface power supply circuit. [0004] In order to solve the problems of the technologies described above, the present invention provides the following technical solutions: [0005] A fault injection circuit for isolating input and output inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/0185
Inventor 付景志彭时涛
Owner BEIJING WATERTEK INFORMATION TECH
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