Unlock instant, AI-driven research and patent intelligence for your innovation.

A power-on signal generation circuit

A technology for generating circuits and electrical signals, applied in the field of circuits, can solve problems such as working circuits not working properly, and achieve the effect of accurate triggering

Active Publication Date: 2019-02-01
SEMICON MFG INT (SHANGHAI) CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the generation of the power-on signal is not accurate enough, it will cause the working circuit to not work normally

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A power-on signal generation circuit
  • A power-on signal generation circuit
  • A power-on signal generation circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] As mentioned above, in the circuit field, it is usually necessary to provide a power-on signal for the working circuit after power-on, and the working circuit can determine its working state according to the trigger of the power-on signal, such as resetting. If the generation of the power-on signal is not accurate enough, the working circuit will not work normally.

[0024] figure 1 It is a schematic diagram of a power-on signal generating circuit. The power-on signal generating circuit generates a power-on signal POR1 in response to the supply voltage VDD1 to trigger the working circuit.

[0025] figure 2 Yes figure 1 A signal schematic diagram of the power-on signal generating circuit, which specifically shows the relationship between the node Node, the power-on signal POR1, and the power supply voltage VDD1 when the power supply voltage VDD1 slowly rises from 0 to the normal working voltage.

[0026] It can be seen that when the supply voltage VDD1 rises slowly and the po...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a power-up signal generation circuit, comprising: a first voltage generation unit, wherein an input terminal of the first voltage generation unit is connected with a power supply voltage, the first voltage generation unit is used for generating a first voltage signal according to the power supply voltage, and an output terminal of the first voltage generation unit is connected with a discharge node; an output unit, an input terminal of the output unit is connected to the discharge node, an output terminal of the output unit outputs the power-on signal, and when a voltageof the discharge node is greater than a first threshold value, the power-on signal flips; a discharge unit adapted to discharge charge to the discharge node before the power-on signal flips over. Thepower-on signal generating circuit of the invention can generate the power-on signal more accurately.

Description

Technical field [0001] The present invention relates to the field of circuits, in particular to a power-on signal generating circuit. Background technique [0002] In the circuit field, it is usually necessary to provide a power-on signal for the working circuit after power-on, and the working circuit can determine its working state according to the trigger of the power-on signal, such as resetting. The working circuit can be of various types, for example, a non-volatile memory (NVM, Non Volatile Memory) circuit. [0003] If the generation of the power-on signal is not accurate enough, the working circuit will not work normally. Summary of the invention [0004] The technical problem solved by the present invention is to generate the power-on signal more accurately. [0005] In order to solve the above technical problems, an embodiment of the present invention provides a power-on signal generation circuit, including: a first voltage generation unit, the input terminal of the first v...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11C5/14G11C7/20
CPCG11C5/148G11C7/20
Inventor 權彞振倪昊刘晓艳
Owner SEMICON MFG INT (SHANGHAI) CORP