CN109494994A - A kind of regulated power supply of the pre- equalizing network of band - Google Patents
A kind of regulated power supply of the pre- equalizing network of band Download PDFInfo
- Publication number
- CN109494994A CN109494994A CN201811252631.7A CN201811252631A CN109494994A CN 109494994 A CN109494994 A CN 109494994A CN 201811252631 A CN201811252631 A CN 201811252631A CN 109494994 A CN109494994 A CN 109494994A
- Authority
- CN
- China
- Prior art keywords
- resistance
- converter
- circuit
- equalizing network
- power supply
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of regulated power supplies of the pre- equalizing network of band, power grid 220V alternating current is connected with pre- equalizing network is rectified, it rectifies pre- equalizing network to be connected by the first LC filter circuit with DC/AC converter, be connected between the first LC filter circuit and DC/AC converter after resistance R1 and resistance R2 series connection；Compared with the feedback voltage exported between resistance R1 and resistance R2 is sent into comparator with the first given voltage, operational amplification circuit control rectifies the duty ratio of the switching tube in pre- equalizing network；DC/AC converter by uncontrollable rectifier circuit and the 2nd LC filter circuit with connect after resistance R4 and resistance R5 be connected, the feedback voltage exported between resistance R4 and resistance R5 and the second given voltage, which are sent into pulse width modulator, to be made to obtain duty ratio, controls the switching tube in DC/AC converter to obtain the target output circuit of power supply.The present invention adds pre- equalizing network in power input, though can make the output voltage of power supply power network fluctuation is larger or when generation of electricity by new energy fluctuation is larger remain to it is highly stable.
Description
Technical field
The present invention relates to voltage regulator circuit fields, are related specifically to a kind of regulated power supply of pre- equalizing network of band.
Background technique
Nowadays the two kinds of most power supplys of power supply in the market are Switching Power Supply and linear power supply respectively.Switching Power Supply utilizes
Feedback voltage is compared with given voltage, the duty ratio of control switch pipe, when voltage ripple of power network is little, exports target voltage
It is more stable.The triode operation of linear power supply controls triode in amplification region, and with feedback voltage compared with given voltage
Work, when voltage ripple of power network is little, output target voltage is also more stable.
With increasing for generation of electricity by new energy, either the voltage of network voltage or generation of electricity by new energy can all occur fluctuating compared with
Big situation, it is unstable so as to cause electric power output voltage, it influences normally to use.
Summary of the invention
It is an object of the invention to aiming at the shortcomings in the prior art, provide a kind of regulated power supply of pre- equalizing network of band, with
It solves the above problems.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of regulated power supply of the pre- equalizing network of band, including pre- steady module, operational amplification circuit, DC/AC converter, do not control it is whole
Current circuit, the 2nd LC filter circuit and the circuit R4 and resistance R5 being arranged in series, pre- steady module include rectifying pre- equalizing network, the
One LC filter circuit and the resistance R1 and resistance R2 being arranged in series, power grid 220V alternating current are connected with pre- equalizing network is rectified, and rectify
Pre- equalizing network is connected by the first LC filter circuit with DC/AC converter, is connected to the first LC after resistance R1 and resistance R2 series connection
Between filter circuit and DC/AC converter；Operational amplification circuit includes comparator, the feedback exported between resistance R1 and resistance R2
Compared with voltage is sent into comparator with the first given voltage, operational amplification circuit control rectifies the duty of the switching tube in pre- equalizing network
Than；DC/AC converter by uncontrollable rectifier circuit and the 2nd LC filter circuit with after series connection resistance R4 and resistance R5 be connected, it is electric
The feedback voltage and the second given voltage exported between resistance R4 and resistance R5, which is sent into pulse width modulator, to be made to obtain duty ratio, is controlled
Switching tube in DC/AC converter is to obtain the target output circuit of power supply.
Further, the DC/AC converter is single-phase full bridge SPWM inverter circuit.
Further, the uncontrollable rectifier circuit includes diode D1 and diode D2, and the 2nd LC filter circuit includes electricity
Feel L2 and capacitor C2, the anode of diode D1 is connected with the anode of the output end of DC/AC converter, the cathode and electricity of diode D1
The cathode of one end and diode D2 for feeling L2 is connected, one end of the other end of inductance L2 and one end of capacitor C2 and resistance R4
It is connected, the output end with the equal DC/AC converter in one end of the anode of diode D2, the other end of capacitor C2 and resistance R5 is born
Extremely it is connected.
Compared with prior art, beneficial effects of the present invention are as follows:
Circuit of the present invention is simple, in the pre- equalizing network of power input addition autonomous Design, can make the output of power supply
Even if voltage remains to highly stable when power network fluctuation is larger or generation of electricity by new energy fluctuation is larger.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the regulated power supply of the pre- equalizing network of band of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to Fig. 1, a kind of regulated power supply of the pre- equalizing network of band of the present invention, including pre- steady module, operation amplifier electricity
Road, DC/AC converter, uncontrollable rectifier circuit, the 2nd LC filter circuit and the circuit R4 and resistance R5 being arranged in series.Pre- steady mould
Block includes the resistance R1 and resistance R2 for rectifying pre- equalizing network, the first LC filter circuit and being arranged in series.Power grid 220V alternating current with
It rectifies pre- equalizing network to be connected, rectifies pre- equalizing network and be connected by the first LC filter circuit with DC/AC converter.First LC filtered electrical
Road includes inductance L1 and capacitor C1.Be connected to after resistance R1 and resistance R2 series connection the first LC filter circuit and DC/AC converter it
Between.Operational amplification circuit includes comparator, and the feedback voltage exported between resistance R1 and resistance R2 and the first given voltage are sent into
Comparator compares, and operational amplification circuit control rectifies the duty ratio of the switching tube in pre- equalizing network.Operational amplification circuit passes through touching
Power Generation Road is connected with pre- equalizing network is rectified.DC/AC converter by uncontrollable rectifier circuit and the 2nd LC filter circuit with connect after
Resistance R4 be connected with resistance R5, the feedback voltage exported between resistance R4 and resistance R5 and the second given voltage are sent into pulsewidth tune
Device processed makes to obtain duty ratio, controls the switching tube in DC/AC converter to obtain the target output circuit of power supply.Pulse width modulator
It is connected by Amplification and insulation driving circuit with DC/AC converter.
DC/AC converter is single-phase full bridge SPWM inverter circuit.
Uncontrollable rectifier circuit includes diode D1 and diode D2, and the 2nd LC filter circuit includes inductance L2 and capacitor C2.
The anode of diode D1 is connected with the anode of the output end of DC/AC converter, one end of the cathode of diode D1 and inductance L2 with
And the cathode of diode D2 is connected.The other end of inductance L2 is connected with one end of one end of capacitor C2 and resistance R4, diode
The cathode of the output end with the equal DC/AC converter in one end of the anode of D2, the other end of capacitor C2 and resistance R5 is connected.
Pre- equalizing network is proceeded immediately to using power grid 220v alternating current as the input of regulated power supply first in the present invention.It is pre- steady
The major part of circuit be half-controlled rectifier circuit, LC filter circuit, compared with feedback voltage is passed through comparator with given voltage, by
Operational amplification circuit controls the duty ratio of pre- equalizing network switching tube, realizes that output voltage is pre- steady.Voltage is no longer power grid at this time
The alternating current of 220v, but pre- steady direct current.By the pre- steady DC inverter, single-phase full bridge SPWM inversion is used herein
Circuit, into uncontrollable rectifier circuit, feedback voltage and given voltage are passed through pulse width modulator, obtain duty by LC filter circuit
Than controlling single-phase full bridge SPWM inverter circuit switching tube, obtaining the target output voltage of power supply.It is autonomous in power input addition
The pre- equalizing network of design, even if may make the output voltage of power supply when power network fluctuation is larger or generation of electricity by new energy fluctuation is larger still
It can be highly stable.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of regulated power supply of the pre- equalizing network of band, it is characterised in that: including pre- steady module, operational amplification circuit, DC/AC transformation
Device, uncontrollable rectifier circuit, the 2nd LC filter circuit and the circuit R4 and resistance R5 being arranged in series, pre- steady module include that rectification is pre-
Equalizing network, the first LC filter circuit and the resistance R1 and resistance R2 being arranged in series, power grid 220V alternating current and the pre- equalizing network of rectification
It is connected, rectifies pre- equalizing network and be connected by the first LC filter circuit with DC/AC converter, is connected after resistance R1 and resistance R2 series connection
Between the first LC filter circuit and DC/AC converter；Operational amplification circuit includes comparator, defeated between resistance R1 and resistance R2
Compared with feedback voltage out is sent into comparator with the first given voltage, operational amplification circuit control rectifies the switch in pre- equalizing network
The duty ratio of pipe；DC/AC converter by uncontrollable rectifier circuit and the 2nd LC filter circuit with connect after resistance R4 and resistance
R5 is connected, and the feedback voltage exported between resistance R4 and resistance R5 and the second given voltage are sent into pulse width modulator and make to obtain duty
Than controlling the switching tube in DC/AC converter to obtain the target output circuit of power supply.
2. the regulated power supply of the pre- equalizing network of band according to claim 1, it is characterised in that: the DC/AC converter is single
Phase Full-bridge SPWM inverter circuit.
3. the regulated power supply of the pre- equalizing network of band according to claim 1, it is characterised in that: the uncontrollable rectifier circuit includes
Diode D1 and diode D2, the 2nd LC filter circuit include inductance L2 and capacitor C2, and anode and the DC/AC of diode D1 is converted
The anode of the output end of device is connected, and the cathode of diode D1 is connected with the cathode of one end of inductance L2 and diode D2, inductance
The other end of L2 is connected with one end of one end of capacitor C2 and resistance R4, the anode of diode D2, capacitor C2 the other end with
And the cathode of the output end with the equal DC/AC converter in one end of resistance R5 is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252631.7A CN109494994A (en) | 2018-10-25 | 2018-10-25 | A kind of regulated power supply of the pre- equalizing network of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252631.7A CN109494994A (en) | 2018-10-25 | 2018-10-25 | A kind of regulated power supply of the pre- equalizing network of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109494994A true CN109494994A (en) | 2019-03-19 |
Family
ID=65691996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811252631.7A Pending CN109494994A (en) | 2018-10-25 | 2018-10-25 | A kind of regulated power supply of the pre- equalizing network of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109494994A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289165A (en) * | 2000-09-19 | 2001-03-28 | 乔建军 | Rectifying regulator |
| CN2899271Y (en) * | 2006-01-24 | 2007-05-09 | 刘文辉 | Power module controlling power supply of chain DC-to-AC converter |
| CN104270029A (en) * | 2014-09-30 | 2015-01-07 | 武汉武热研热处理科技有限公司 | Large-power high-frequency inversion pulse power supply used for ion nitriding and process of large-power high-frequency inversion pulse power supply |
| CN105846690A (en) * | 2016-05-11 | 2016-08-10 | 成都中微电微波技术有限公司 | Remote monitoring type switch power supply circuit system |
| CN106712537A (en) * | 2016-11-28 | 2017-05-24 | 天津斌德鑫力电子科技有限公司 | Novel DC voltage-stabilizing power supply |
-
2018
- 2018-10-25 CN CN201811252631.7A patent/CN109494994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289165A (en) * | 2000-09-19 | 2001-03-28 | 乔建军 | Rectifying regulator |
| CN2899271Y (en) * | 2006-01-24 | 2007-05-09 | 刘文辉 | Power module controlling power supply of chain DC-to-AC converter |
| CN104270029A (en) * | 2014-09-30 | 2015-01-07 | 武汉武热研热处理科技有限公司 | Large-power high-frequency inversion pulse power supply used for ion nitriding and process of large-power high-frequency inversion pulse power supply |
| CN105846690A (en) * | 2016-05-11 | 2016-08-10 | 成都中微电微波技术有限公司 | Remote monitoring type switch power supply circuit system |
| CN106712537A (en) * | 2016-11-28 | 2017-05-24 | 天津斌德鑫力电子科技有限公司 | Novel DC voltage-stabilizing power supply |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| 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: 20190319 |