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Offline power circuit for self-destruct circuit

A self-destruct circuit and line power supply technology, which is applied in circuit devices, emergency power arrangements, emergency protection circuit devices, etc., can solve problems such as chip short circuit, high battery self-discharge rate, low output voltage, etc., to overcome battery power consumption Great, reliable, simple structure effect

Inactive Publication Date: 2012-06-13
TIANJIN EMBEDTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The battery power supply in this solution has a high self-discharge rate of the battery, which cannot guarantee long-term power supply, and there will be a short circuit phenomenon during the chip burning process, which will cause the output voltage to be too low and cause the self-destruct circuit to not be completely completed.

Method used

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  • Offline power circuit for self-destruct circuit
  • Offline power circuit for self-destruct circuit
  • Offline power circuit for self-destruct circuit

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Embodiment Construction

[0009] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings.

[0010] Off-line power supply circuit (abbreviation power supply circuit, refer to figure 1 ), characterized in that the power supply circuit includes a battery 1, a trigger switch 2, a resistor 3, a capacitor 4 and a switching device 6 electrically connected in sequence; the trigger switch 2 is also electrically connected to the programmable device 5, and the programmable device 5 is also electrically connected It is electrically connected with the switching device 6, and the said switching device 6 is connected with the external circuit 7 (chip or integrated circuit of the self-destruction target, etc.).

[0011] The power circuit of the present invention is a battery-powered backup power circuit, and the battery 1 is used to provide power for the self-destruct circuit. The battery 1 may be a battery pack, and the number or power supply capa...

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Abstract

The invention discloses an offline power circuit for a self-destruct circuit. The offline power circuit is characterized by comprising a battery, a trigger switch, a resistor, a capacitor and a switching device, which are sequentially electrically connected, wherein the trigger switch is also electrically connected with a programmable device; the programmable device is electrically connected with the switching device; and the switching device is connected with an external circuit. By the offline power circuit for the self-destruct circuit, energy is stored by the capacitor, and current is limited by the resistor, so that huge energy can be transiently released, and a secure circuit can be destructed once.

Description

technical field [0001] The invention relates to a battery-powered power supply circuit, in particular to an off-line power supply circuit for a self-destruction circuit. The circuit is mainly used in the field of data security, especially in the data self-destruction system in the data memory. Background technique [0002] With the rapid development of information technology, integrated circuit storage media for digital information has been widely used. There will obviously be some programs and data that need to be kept secret, and this information will inevitably be released and spread along with the sale of electronic equipment. In order to effectively protect the commercial secrets, technical secrets and military secrets stored in the information, people need to design a self-destruct function for specific integrated circuits in electronic equipment. The self-destruction function of traditional electronic circuits depends on the power supply in the equipment system, and...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02H9/02
Inventor 宁立革贺海英张凯刘炳坤蔡勇
Owner TIANJIN EMBEDTEC
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