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System on chip

A system-on-chip and power supply pin technology, which is applied in the field of system-on-chip, can solve the problems that the system-on-chip is easy to burn out and cannot work normally.

Active Publication Date: 2020-02-28
SHENZHEN WINSEMI MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a system on a chip to solve the problem that the system on a chip in the prior art is easy to burn or cannot work normally

Method used

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present application, a system-on-a-chip provided by the invention will be further described in detail below with reference to the drawings and specific embodiments.

[0025] This application provides a system on chip, please refer to figure 1 , figure 1 It is a schematic circuit diagram of an embodiment of the system on chip of the present application. The SoC 100 includes a power pin VDD, a ground pin GND, an anti-reverse connection unit 11 , an energy storage capacitor C1 and other circuits.

[0026] Other circuits in the SoC 100 may include other functional circuits, such as control circuits, communication circuits, display circuits, and so on. The system-on-chip 100 having functional circuits may perform corresponding functions. This application does not limit the functional circuits in the SoC 100 . Those skilled in the art can configure other circuits in the system ...

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PUM

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Abstract

The invention discloses a system on a chip. The system comprises a power supply pin, a grounding pin, an anti-reverse connection unit and an energy storage capacitor. The energy storage capacitor is connected between the power supply pin and the grounding pin through the anti-reverse connection unit. The power supply pin and the grounding pin of the system on the chip are connected with an external power supply. When the external power supply is reversely connected between the power supply pin and the grounding pin of the system on the chip, the anti-reverse connection unit is cut off to avoiddirect connection of the positive and negative poles of the external power supply. When the voltage of the external power supply is lower than the working voltage of the system on the chip, the energy storage capacitor supplies power to the system on the chip. The system on the chip is provided with the anti-reverse connection unit and the energy storage capacitor so as to cut off the current when the power supply is reversely connected and supply power to the system on the chip when the external power supply voltage is excessively low, thus ensuring the normal operation of the system on thechip.

Description

technical field [0001] The present application relates to the technical field of electronic devices, in particular to a system on chip. Background technique [0002] System on Chip (System on Chip, SOC) is a technology commonly used in the field of integrated circuits. Its purpose is to combine multiple integrated circuits with specific functions on one chip to form a system or product, which includes the completed hardware system and the Embedded Software. SoCs have obvious advantages in performance, cost, power consumption, reliability, and life cycle and scope of use. [0003] However, the system on chip also has safety problems. For example, when the external power supply is reversed, a circuit without a current limiting device may be formed inside the system on chip. Excessive current will burn the system on chip and the external power supply. Or, due to the internal resistance of the external power supply, the voltage of the external power supply cannot meet the work...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/31H01L25/16H02J7/00
CPCH01L25/16H01L23/3107H02J7/0029H02J7/0034
Inventor 宋利军宋朋亮徐丹蓉廖伟宝
Owner SHENZHEN WINSEMI MICROELECTRONICS