Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power-on-reset circuit with low power consumption

A technology of electric reset and circuit, which is applied in the direction of data reset device, electrical components, electronic switches, etc.

Active Publication Date: 2012-10-17
NXP BV
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Internal capacitor and transistor gain can be significant contributors to the dynamic current which is usually proportional to the switching frequency

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
  • Power-on-reset circuit with low power consumption
  • Power-on-reset circuit with low power consumption
  • Power-on-reset circuit with low power consumption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] While the invention can be modified into various modifications and alternative forms, examples thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that these descriptions are not intended to limit the invention to the particular embodiments shown and / or described. On the contrary, the intention of these descriptions is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

[0022] One or more of the various disclosed embodiments may be applied to many different types of power-on-reset (POR) circuits, devices, methods, and structures for use with many different systems and devices. While the embodiments are not necessarily so limited, various aspects of the present disclosure can be understood using the context by discussion of examples.

[0023] Advanced power management modes and low-power standby states can effectively reduce dev...

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

Methods, devices and circuits are provided for power-on-reset circuits with low static power consumption. One such circuit (100) includes a detector (104) that draws current from a supply voltage. The detector detects that the supply voltage has exceeded a trip-point voltage level and then disables current draw from the detector. The detector responds to an enable signal by enabling current draw from the detector. A pulse generator (106) generates a reset signal in response the supply voltage transitioning from a voltage below the trip point voltage level to above the trip point voltage level. A monitor (108) detects that the supply voltage has dropped and provides, in response thereto, the enable signal to the detector to enable current draw from the portion of the detector.

Description

technical field [0001] Aspects of the invention relate to power-on reset circuits. In some embodiments of the present invention, the power-on reset circuit has low or no static power consumption. Background technique [0002] Logic circuits, such as the synchronous logic of a microcontroller, usually, but not always, need to be initialized to be in a known state when powered up and / or powered down. To provide this initialization, a power-on-reset (POR) device may be used in a circuit, such as a microcontroller with associated logic. The circuitry of the POR device generates a reset pulse that initializes the logic points after the logic circuit's power supply ramps up. This reset pulse ensures that the logic starts in a known state, making the start-up of circuit behavior predictable. [0003] A power-on-reset circuit can function by monitoring the supply voltage and generating a pulse if the supply voltage transitions from a low state to a high state. This pulse can be ...

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
IPC IPC(8): H03K17/22
CPCH03K17/223G06F1/305G06F1/32G06F1/24
Inventor 安德・冈瑟凯文・马胡提
Owner NXP BV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com