Auxiliary voltage source suitable for building safety and capable of automatically adjusting output

An automatic adjustment and auxiliary voltage technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve problems that affect system performance or reliability, over-triggering, under-triggering, etc.

Inactive Publication Date: 2021-05-11
NANJING COMM INST OF TECH
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of high-power non-contact regulated power supply requires an auxiliary power supply as a trigger drive to control the continuous trigger current of the bidirectional thyristor. If a fixed voltage source is used for power supply according to conventional technology, the effective trigger current is greatly affected by temperature. , The trigger current at -40°C is about 4 times that at 85°C, so over-triggering or under-triggering is prone to occur when using a fixed

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
  • Auxiliary voltage source suitable for building safety and capable of automatically adjusting output
  • Auxiliary voltage source suitable for building safety and capable of automatically adjusting output
  • Auxiliary voltage source suitable for building safety and capable of automatically adjusting output

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The technical solution of the present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0030] see figure 1 , the auxiliary voltage source for automatically adjusting the output of the present invention includes an input filter circuit 1, a rectification filter circuit 2, a switching transformer 3, a control and drive circuit 4, a first rectification output circuit 5, a second rectification output circuit 6, and a photocoupler 7. Amplifier circuit 8 and triode circuit 9;

[0031] The input power is sent to the input side of the switching transformer 3 through the input filter circuit 1 and the rectification filter circuit 2 in turn, and the control and drive circuit 4 adjusts the duty ratio of the pulse signal input to the switching transformer 3. The switching transformer 3 has multiple secondary windings, Wherein, one or more secondary windings are connected to the first rectification output circuit 5, and one or mor...

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 an auxiliary voltage source capable of automatically adjusting output and suitable for building safety. The auxiliary voltage source comprises a power input circuit, a switch transformer, a control and drive circuit, a multi-path rectification output circuit, a photoelectric coupling circuit, an amplifier circuit and a triode circuit. Based on the relation between the temperature and the amplification factor of the triode, when the temperature of the environment where the triode circuit is located changes, the amplification factor of the triode circuit is increased/decreased along with the increase/decrease of the temperature, and the control and drive circuit automatically adjusts the working duty ratio input into the switch transformer according to the output current of the photoelectric coupling circuit. The purpose of controlling the output side voltage of the switch transformer is achieved.

Description

technical field [0001] The invention belongs to the technical field of power supply control, and in particular relates to an auxiliary voltage source for automatically adjusting output suitable for building safety. Background technique [0002] In buildings where explosive gas, flammable or combustible liquid vapor is mixed with air to form an explosive gas mixture, for safety reasons, to avoid electric contact arcs igniting flammable gases and causing explosions, high-safety electrical equipment is usually used. A regulated power supply with contacts is used, while a non-contact regulated power supply is used, in which a full-cycle conduction bidirectional thyristor is used as a non-contact device. This kind of high-power non-contact regulated power supply requires an auxiliary power supply as a trigger drive to control the continuous trigger current of the bidirectional thyristor. If a fixed voltage source is used for power supply according to conventional technology, the ...

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): G05F1/625
CPCG05F1/625
Inventor 沈月涂金龙
Owner NANJING COMM INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap