Check patentability & draft patents in minutes with Patsnap Eureka AI!

Electric supply interface arrangement for external equipment and interface electric supply method

A technology of power supply interface and external equipment, applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve problems such as unreliability and cumbersome implementation schemes, increase reliability, save resources and costs, and save costs cheap effect

Active Publication Date: 2009-02-11
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Their implementations are cumbersome and unreliable

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
  • Electric supply interface arrangement for external equipment and interface electric supply method
  • Electric supply interface arrangement for external equipment and interface electric supply method
  • Electric supply interface arrangement for external equipment and interface electric supply method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 This is the circuit schematic diagram of the present invention. The power supply interface device of the present invention includes a reference level monitoring circuit, a working power switch, a signal interface socket, a power socket, and a 5V signal monitoring power supply. The signal interface socket includes a first signal pin and a power supply positive lead. Pin, power negative pin; power positive pin, power negative pin are used to connect the signal monitoring power supply, the first signal pin is coupled with the input terminal of the reference level monitoring circuit; the working power switch control terminal and the reference level monitoring circuit output Terminal connection; the working power switch input terminal is used to connect the working power supply, and the output terminal is connected to the power socket; when the reference level monitoring circuit detects the level jump of the first signal pin, it outputs a control signal to control the...

Embodiment 2

[0039] The working principle of this example is the same as that of the first embodiment, except that the circuit adopts such Figure 6 The implementation of discrete devices shown includes a comparator, a signal power composite socket, a working power switch, a subtractor, an isolation and drive circuit, the comparator is used as a reference level monitoring circuit, and the second pin and a third lead in the signal power composite socket Any one of the pins is connected to the "+" terminal of the comparator, the "-" terminal of the comparator is connected to a 4V voltage, and the output terminal of the comparator is connected to the control pole of the power switch to control +12V on and off. When the external device is plugged in, the reference level of the second pin and the third pin jumps to 5V, which is greater than 4V, so that the comparator outputs a high level, the power switch is turned on, and the external device supplies +12V power. The second pin and the third pin ar...

Embodiment 3

[0042] The working principle of this example is the same as that of the first embodiment, the difference is that, as Figure 7 As shown, in its specific implementation circuit, part of the circuit is omitted, and the socket J1 is changed to a 6PIN socket, where PIN1 and PIN2 are pulled up by the first pull-up resistor R46 and the second pull-up resistor R47, and are connected to the +5V signal The power supply is monitored, and the corresponding pin of the external device is pulled down. When the external device is connected, the signal on PIN1 and PIN2 will jump, and the embedded MCU in the USB controller U1 will detect the change of the differential signal level (DM or DP signal voltage reference changes), the USB controller U1 pin PSW1 gives a low level. Transistor Q1 is turned on, optocoupler U2 works, so that pins 3 and 4 of optocoupler U2 are turned on and become low level, MOSFET switch tube Q2 is turned on, and +12V working power is the working power interface of signal pow...

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 discloses a power supply interface device for an external device and an interface power supply method. The device comprises a reference level monitoring circuit, a switching circuit, a signal interface socket and a working power source interface socket. By detecting the jump transfer of the interface signal reference level, the reference level monitoring circuit identifies the plug-in and the plug-out of the external device and accordingly switches on or switches off a working power supply switch, so as to supply or cut off the power to the power supply interface device, ensure the hot plug of power supply to the external device and solve the problem that the direct power supply to the interface causes the heavy current that results in the strike fire and arc phenomena. On the one hand, the service life of the device is prolonged; on the other hand, the operating reliability of the device is improved to meet the safety requirement for medical instruments.

Description

【Technical Field】 [0001] The invention relates to a power supply interface device and a device power supply method. 【Background technique】 [0002] At present, most working equipments use independent power supplies to supply power separately to ensure their reliable operation. The interface between working equipment and other equipment only provides signal path. A few working devices that do not use an independent power supply but are powered by an interface are either designed to be in an interface power-on mode and use a slow power-on circuit for interface power supply protection; or through a complex mechanical structure to achieve plug-in device detection and interface power-on control. The implementation schemes are relatively cumbersome and unreliable. [Summary of the invention] [0003] The main purpose of the present invention is to provide a power supply interface device and an interface power supply method for the external equipment that can simply and quickly identify...

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): G05B19/04
Inventor 罗旭
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com