CN108964484A - A kind of D.C. regulated power supply - Google Patents

A kind of D.C. regulated power supply Download PDF

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Publication number
CN108964484A
CN108964484A CN201810788430.2A CN201810788430A CN108964484A CN 108964484 A CN108964484 A CN 108964484A CN 201810788430 A CN201810788430 A CN 201810788430A CN 108964484 A CN108964484 A CN 108964484A
Authority
CN
China
Prior art keywords
circuit
power supply
regulated power
filter circuit
overvoltage crowbar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810788430.2A
Other languages
Chinese (zh)
Inventor
郭余维
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HUAWEI ELECTRIC POWER TECHNOLOGY Co Ltd
Original Assignee
JIANGSU HUAWEI ELECTRIC POWER TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU HUAWEI ELECTRIC POWER TECHNOLOGY Co Ltd filed Critical JIANGSU HUAWEI ELECTRIC POWER TECHNOLOGY Co Ltd
Priority to CN201810788430.2A priority Critical patent/CN108964484A/en
Publication of CN108964484A publication Critical patent/CN108964484A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/068Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode mounted on a transformer
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/062Avoiding or suppressing excessive transient voltages or currents

Abstract

The present invention provides a kind of D.C. regulated power supply; including sequentially connected transformer, rectification circuit, filter circuit and voltage regulator circuit; the rectification circuit is connected separately with accessory power supply and overvoltage crowbar; the accessory power supply is connected with booster circuit; the booster circuit connects the filter circuit; the overvoltage crowbar is connected with current foldback circuit, and the current foldback circuit connects the filter circuit.The configuration of the present invention is simple, high-efficient and high reliablity.

Description

A kind of D.C. regulated power supply
Technical field
The invention belongs to power technique fields, and in particular to a kind of D.C. regulated power supply.
Background technique
With the rapid development of society, the requirement for electricity consumption and electrical equipment is growing day by day.But from the point of view of at this stage, The aging of China's electrical power distribution facility and lagging in development, and design a series of reasons such as not perfect and power supply volume is insufficient and be all easy Cause terminal temperature difference brownout, and the end of a thread user then higher phenomenon of frequent voltage.Unstable voltage can give electrical equipment Mortal injury is caused, influences to produce, causes many-sided loss such as delivery date delay, unstable quality.It is easy to accelerate simultaneously electromechanical The aging of equipment influences service life, or even burns machine parts.These make people face the puzzlement to need repairing or in a short time Will more new equipment the problem of, even safety accident occurs for waste of resource, serious person, causes immeasurable loss.
Summary of the invention
The object of the present invention is to provide a kind of D.C. regulated power supply, structure is simple, high-efficient and high reliablity.
The present invention provides the following technical solutions:
A kind of D.C. regulated power supply, including sequentially connected transformer, rectification circuit, filter circuit and voltage regulator circuit, institute It states rectification circuit and is connected separately with accessory power supply and overvoltage crowbar, the accessory power supply is connected with booster circuit, the liter Volt circuit connects the filter circuit, and the overvoltage crowbar is connected with current foldback circuit, and the current foldback circuit connects Connect the filter circuit.
Preferably, the transformer is connected with fuse.
Preferably, the voltage regulator circuit is LM317 integrated regulator.
Preferably, the output of the voltage regulator circuit is the direct current of specified 18V.
The beneficial effects of the present invention are: D.C. regulated power supply can effectively inhibit output voltage in variation of ambient temperature Drift keeps output voltage stabilization, and when the small load variation of output resistance, output voltage is held essentially constant, output voltage line Wave is small.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structure of the invention schematic illustration.
Specific embodiment
As shown in Figure 1, a kind of D.C. regulated power supply, including sequentially connected transformer, rectification circuit, filter circuit and steady Volt circuit, rectification circuit are connected separately with accessory power supply and overvoltage crowbar, and accessory power supply is connected with booster circuit, boosting electricity Road connects filter circuit, and overvoltage crowbar is connected with current foldback circuit, and current foldback circuit connects filter circuit.Transformer It is connected with fuse.Voltage regulator circuit is LM317 integrated regulator.The output of voltage regulator circuit is the direct current of specified 18V.
As shown in Figure 1, a kind of D.C. regulated power supply, 12V needed for 220V alternating current is become pressure stabilizing by transformer module is low Press alternating current;Rectification circuit module is the unilateal conduction characteristic using diode, low-voltage AC is become unidirectionally pulsing straight Galvanic electricity can still contain ac component in the direct current after rectification;Alternating component can be filtered out by filter circuit module, Pulsating direct current is transformed into smoother direct current;Still there is certain fluctuation by filter circuit module output voltage, this is to wanting Seek higher electronic equipment, it is also necessary to have voltage stabilizing circuit module, the output voltage by voltage stabilizing circuit module is almost exactly constant Voltage.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (4)

1. a kind of D.C. regulated power supply, which is characterized in that including sequentially connected transformer, rectification circuit, filter circuit and steady Volt circuit, the rectification circuit are connected separately with accessory power supply and overvoltage crowbar, and the accessory power supply is connected with boosting electricity Road, the booster circuit connect the filter circuit, and the overvoltage crowbar is connected with current foldback circuit, and the overcurrent is protected Protection circuit connects the filter circuit.
2. a kind of D.C. regulated power supply according to claim 1, which is characterized in that the transformer is connected with fuse.
3. a kind of D.C. regulated power supply according to claim 1, which is characterized in that the voltage regulator circuit is integrated for LM317 Voltage-stablizer.
4. a kind of D.C. regulated power supply according to claim 1, which is characterized in that the output of the voltage regulator circuit is specified The direct current of 18V.
CN201810788430.2A 2018-07-18 2018-07-18 A kind of D.C. regulated power supply Pending CN108964484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810788430.2A CN108964484A (en) 2018-07-18 2018-07-18 A kind of D.C. regulated power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810788430.2A CN108964484A (en) 2018-07-18 2018-07-18 A kind of D.C. regulated power supply

Publications (1)

Publication Number Publication Date
CN108964484A true CN108964484A (en) 2018-12-07

Family

ID=64495758

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810788430.2A Pending CN108964484A (en) 2018-07-18 2018-07-18 A kind of D.C. regulated power supply

Country Status (1)

Country Link
CN (1) CN108964484A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070177410A1 (en) * 2006-01-27 2007-08-02 Denso Corporation Control apparatus for voltage transforming apparatus
CN201479023U (en) * 2009-08-24 2010-05-19 苏州海兹思纳米科技有限公司 High-precision large-range positive-negative power supply
CN202142991U (en) * 2011-06-23 2012-02-08 西安理工大学 DC regulated power supply
CN202395666U (en) * 2011-08-09 2012-08-22 赵宽彬 AC switch power source
CN206180875U (en) * 2016-08-30 2017-05-17 天津光电比特信息技术有限公司 24V D.C. regulated power supply
CN106972769A (en) * 2017-05-16 2017-07-21 国网河南省电力公司平顶山供电公司 A kind of light current electrical load overvoltage crowbar
CN107093894A (en) * 2016-02-17 2017-08-25 中国科学院声学研究所 A kind of constant current constant voltage conversion equipment under water suitable for seabed constant-current supply system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070177410A1 (en) * 2006-01-27 2007-08-02 Denso Corporation Control apparatus for voltage transforming apparatus
CN201479023U (en) * 2009-08-24 2010-05-19 苏州海兹思纳米科技有限公司 High-precision large-range positive-negative power supply
CN202142991U (en) * 2011-06-23 2012-02-08 西安理工大学 DC regulated power supply
CN202395666U (en) * 2011-08-09 2012-08-22 赵宽彬 AC switch power source
CN107093894A (en) * 2016-02-17 2017-08-25 中国科学院声学研究所 A kind of constant current constant voltage conversion equipment under water suitable for seabed constant-current supply system
CN206180875U (en) * 2016-08-30 2017-05-17 天津光电比特信息技术有限公司 24V D.C. regulated power supply
CN106972769A (en) * 2017-05-16 2017-07-21 国网河南省电力公司平顶山供电公司 A kind of light current electrical load overvoltage crowbar

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Legal Events

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SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20181207