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

Isolated dual-output DC-DC power supply and industrial control equipment

A DC-DC, dual output technology, applied in the output power conversion device, the conversion equipment with intermediate conversion to AC, the conversion of DC power input to DC power output, etc., can solve the problem that the DC-DC main circuit cannot work normally , output voltage crosstalk and other issues

Pending Publication Date: 2021-07-06
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is necessary to output voltage to the outside world, when the isolated rectifier circuit of the existing isolated DC-DC power supply is short-circuited, the DC-DC main circuit cannot work normally, and the two output voltages after isolation will also be affected by the load of the DC-DC main circuit. Changes are affected, and the two output voltages that are easy to isolate are also prone to mutual crosstalk

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
  • Isolated dual-output DC-DC power supply and industrial control equipment
  • Isolated dual-output DC-DC power supply and industrial control equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the isolated dual-output DC-DC power supply provided in this embodiment includes an input filter capacitor, an enable voltage divider resistor, a DC-DC main circuit, an output filter capacitor, a voltage feedback resistor, an isolated rectifier circuit and a decoupling device . in:

[0026] The input filter capacitor has a first input capacitor C1 and a second input capacitor C2. The input filter capacitor formed by the first input capacitor C1 and the second input capacitor C2 is used to provide input instantaneous large current and bypass when the DC-DC power supply is working. High-frequency noise generated when the isolated DC-DC power supply is working;

[0027] The voltage dividing resistor is enabled and has a first resistor R1 and a second resistor R2. The first end of the first resistor R1 is respectively connected to the first end of the first input capacitor C1 and the first end of the second input capacitor C2. The first resistor...

Embodiment 2

[0042] Such as figure 2 As shown, the isolated dual-output DC-DC power supply provided in this embodiment includes an input filter capacitor, an enable voltage divider resistor, a DC-DC main circuit, an output filter capacitor, a voltage feedback resistor, an isolated rectifier circuit and a decoupling device ; Wherein, the difference from Embodiment 1 is that the decoupling device in this embodiment is connected to the output side of the first inductor L1, and the other end of the decoupling device is connected to the anode of the rectifier diode VD1.

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 relates to an isolation type double-path output DC-DC power supply and industrial control equipment, the isolation type double-path output DC-DC power supply comprises an input filter capacitor, an enabling divider resistor, a DC-DC main circuit, an output filter capacitor, a voltage feedback resistor and an isolation rectification circuit, the DC-DC main circuit is provided with a first inductor which plays a role of a transformer, and the first inductor is connected with a decoupling device. According to the isolated dual-path output DC-DC power supply, the decoupling device is additionally arranged on the basis of an existing isolated dual-path output DC-DC power supply circuit, and the decoupling device is arranged to be connected with the first inductor which plays a role of a transformer in the DC-DC main circuit; therefore, when the first inductor L1 in the DC-DC main circuit presents leakage inductance due to heavy load or short circuit of one path of isolation loop voltage F5V output by the first inductor L1, the decoupling device is used for supplementing leakage inductance of a certain magnitude, the voltage output by the DC-DC power supply circuit is ensured to be stable, and the condition of mutual crosstalk of two paths of output voltage is avoided.

Description

technical field [0001] The invention relates to the field of DC-DC power supplies, in particular to an isolated dual-output DC-DC power supply and industrial control equipment. Background technique [0002] When supplying power to industrial control equipment, in order to avoid crosstalk between the power supplies of industrial control equipment and meet safety performance requirements, the existing power supply for industrial control equipment generally uses isolated power supplies. Isolated DC-DC power supplies are a common industrial control Device power supply. [0003] Isolated DC-DC power supply, also known as isolated DC-to-DC converter, has a simple circuit structure and can isolate voltage output to avoid crosstalk of output voltage. It is suitable for low-power power supply and various DC Power Adapter. [0004] An existing isolated DC-DC power supply mainly includes an input filter capacitor, an enabling voltage divider resistor, a DC-DC main circuit, an output ...

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): H02M3/24H02M3/28H02M1/14
CPCH02M3/24H02M3/28H02M1/14
Inventor 俞志根
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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