CN106374759A - Multiplexed output power supply with protection function - Google Patents
Multiplexed output power supply with protection function Download PDFInfo
- Publication number
- CN106374759A CN106374759A CN201610911418.7A CN201610911418A CN106374759A CN 106374759 A CN106374759 A CN 106374759A CN 201610911418 A CN201610911418 A CN 201610911418A CN 106374759 A CN106374759 A CN 106374759A
- Authority
- CN
- China
- Prior art keywords
- voltage stabilizing
- stabilizing chip
- outfan
- varistor
- pin
- 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
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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
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion 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
- H02M7/064—Conversion 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 with several outputs
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
Abstract
The invention discloses a multiplexed output power supply with a protection function. The multiplexed output power supply comprises a 220V alternating current power supply P1, wherein the 220V alternating current power supply P1 is connected with the signal input end of an over-voltage protection circuit (1); the output end of the over-voltage protection circuit is connected with an interference filter circuit (2); and the output end of the interference filter circuit (2) is connected with a multiplexed voltage output circuit. According to the multiplexed output power supply, the circuit structure is simplified, and the integration level and stability of the circuit are improved.
Description
Technical field
The present invention relates to intelligent charge field, particularly to a kind of multiple-output electric power with protection.
Background technology
Smart machine is a kind of supermatic electromechanical integration equipment, due to its complex structure, work in systems
With particularly significant, therefore there is very high requirement to the reliability of smart machine.The reliability of components and parts, Technology design, fresh water (FW)
Gentle technical management etc. has together decided on the reliability index of electronic product.Improve the reliability of product it is necessary to grasp product
Failure regularity, is only comprehensively understood to the failure regularity of product, just can take effective measures to improve product can
By property.
The voltage requirements of smart machine are the same, and primary demand has 5v, 12v, -12v voltage, as to different voltage requirements
Led, using single voltage module, can make circuit structure complicate, and stability is low and ballast front end AC power circuit
Overvoltage harmonic composition occurs, obtains service life using electric equipment and receive serious impact.
Content of the invention
The goal of the invention of the present invention is: solves the demand of power supply difference voltage output, circuit is complicated, and circuit is integrated
Degree and the problem of stability and input harmonic wave and overvoltage.
To achieve these goals, the technical solution used in the present invention is:
A kind of multiple-output electric power with protection, including 220v alternating current power supply p1,220v alternating current power supply p1 was connected with electricity
The signal input part of voltage protection circuit, the outfan of excess voltage protection is connected with interference filter circuit, interference filter circuit
Outfan be connected with plurality of voltages output circuit.
Further scheme is: described excess voltage protection includes switching discharge tube fdg, output end p 2, pressure-sensitive electricity
Resistance m3, varistor m2 and varistor m1, one end of varistor m1 connects one end of varistor m2, varistor m1's
The other end is connected with current-limiting resistance x3, and the other end of current-limiting resistance x3 is connected with current-limiting resistance x2, the other end of current-limiting resistance x2
Connect one end of varistor m3, the other end of varistor m2 is connected with current-limiting resistance x4, and the other end of current-limiting resistance x4 is even
Connect the other end of varistor m3；Tie point tandem tap discharge tube fdg is drawn between varistor m2 and varistor m1
After be grounded, draw between current-limiting resistance x4 and varistor m3 second branch road connect 220v alternating current power supply p1 n end, current-limiting resistance
The l end that the 3rd branch road connects 220v alternating current power supply p1 is drawn between x3 and current-limiting resistance x2；Output end p 2 includes pin 1, pin
2nd, pin 3 and pin 4, pin 1 and pin 3 turn on, and pin 2 and pin 4 turn on；Draw between varistor m3 and current-limiting resistance x2
Go out the pin 1 that the 4th branch road connects output end p 2, the n end of 220v alternating current power supply p1 is also connected with the pin 2 of output end p 2.
Further scheme is: interference filter circuit includes common mode choke coil l2 and negative tempperature coefficient thermistor
The input of kt, common mode choke coil l2 is connected in parallel on the pin 3 and pin 4 of output end p 2 respectively, common mode choke coil l2's
Input is also parallel with electric capacity c7, and outfan 1 foot of common mode choke coil l2 is connected with electric capacity c8, electric capacity c10 and resistance r19,
The other end of electric capacity c8 is connected with electric capacity c9, and the other end of electric capacity c9 connects outfan 2 foot of common mode choke coil l2, electric capacity
The other end of c10 connects outfan 2 foot of common mode choke coil l2, and the other end of resistance r19 is connected with resistance r20, resistance r20
The other end connect negative tempperature coefficient thermistor kt after connect connect common mode choke coil l2 outfan 2 foot；Described resistance
The 5th branch road is drawn as outfan 1, described resistance r20 and negative temperature coefficient thermistor power between the junction point of r19 and electric capacity c10
The 6th branch road is drawn as outfan 2 between the junction point of resistance kt.
Further scheme is: the model zm86 2r350l of switching discharge tube fdg.
Further scheme is: plurality of voltages output circuit includes rectifier bridge d1, voltage stabilizing chip group it is characterised in that steady
Pressure chipset includes voltage stabilizing chip u1, voltage stabilizing chip u2 and voltage stabilizing chip u3, and the positive output end of rectifier bridge d1 connects voltage stabilizing chip
The input of u1, the outfan of voltage stabilizing chip u1 be connected as the outfan of 12v voltage and with the input of voltage stabilizing chip u3；Whole
The negative input end of stream bridge d1 connects the input of voltage stabilizing chip u2, and the outfan of voltage stabilizing chip u2 is as the voltage output of -12v
End；The outfan of voltage stabilizing chip u3 is as the outfan of 5v voltage；The input of voltage stabilizing chip u1 and voltage stabilizing chip u2 and output
Polar capacitor and capacity earth are respectively passed through in end, and the outfan of voltage stabilizing chip u3 passes through polar capacitor and capacity earth；Voltage stabilizing
The earth terminal of chipset is sequentially connected resistance r1 and positive light emitting diode d2 to the outfan of voltage stabilizing chip u2；Rectifier bridge d1
Input 1 connects described input 1, and rectifier bridge d1 input 2 connects described input 2.
Further scheme is: voltage stabilizing chip u1 adopts lm7812, and voltage stabilizing chip u2 adopts lm7912, voltage stabilizing chip u3
Using lm7805.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows:
The application simplifies circuit structure, improves integrated level and the stability of circuit, and the present invention solves DC source
Overvoltage in front end AC power circuit, harmonic wave and baroque problem, have high common mode inhibition and the suppression of low difference mode signal
Ability processed, is difficult to deform in high speed signal, small volume, easy to use, have that degree of balance is good, easy to use, high-quality and
Working frequency range impedance is little, interfering frequency impedance big inductance value stabilization, and heat stability is good.
Brief description
Fig. 1 is the application multiplex output circuit schematic diagram.
Fig. 2 is overvoltage crowbar and interference filter circuit theory diagrams.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
Embodiment 1
A kind of multiple-output electric power with protection, including 220v alternating current power supply p1,220v alternating current power supply p1 was connected with electricity
The signal input part of voltage protection circuit, the outfan of excess voltage protection is connected with interference filter circuit, interference filter circuit
Outfan be connected with plurality of voltages output circuit.
Further scheme is: described excess voltage protection includes switching discharge tube fdg, output end p 2, pressure-sensitive electricity
Resistance m3, varistor m2 and varistor m1, one end of varistor m1 connects one end of varistor m2, varistor m1's
The other end is connected with current-limiting resistance x3, and the other end of current-limiting resistance x3 is connected with current-limiting resistance x2, the other end of current-limiting resistance x2
Connect one end of varistor m3, the other end of varistor m2 is connected with current-limiting resistance x4, and the other end of current-limiting resistance x4 is even
Connect the other end of varistor m3；Tie point tandem tap discharge tube fdg is drawn between varistor m2 and varistor m1
After be grounded, draw between current-limiting resistance x4 and varistor m3 second branch road connect 220v alternating current power supply p1 n end, current-limiting resistance
The l end that the 3rd branch road connects 220v alternating current power supply p1 is drawn between x3 and current-limiting resistance x2；Output end p 2 includes pin 1, pin
2nd, pin 3 and pin 4, pin 1 and pin 3 turn on, and pin 2 and pin 4 turn on；Draw between varistor m3 and current-limiting resistance x2
Go out the pin 1 that the 4th branch road connects output end p 2, the n end of 220v alternating current power supply p1 is also connected with the pin 2 of output end p 2.
Further scheme is: interference filter circuit includes common mode choke coil l2 and negative tempperature coefficient thermistor
The input of kt, common mode choke coil l2 is connected in parallel on the pin 3 and pin 4 of output end p 2 respectively, common mode choke coil l2's
Input is also parallel with electric capacity c7, and outfan 1 foot of common mode choke coil l2 is connected with electric capacity c8, electric capacity c10 and resistance r19,
The other end of electric capacity c8 is connected with electric capacity c9, and the other end of electric capacity c9 connects outfan 2 foot of common mode choke coil l2, electric capacity
The other end of c10 connects outfan 2 foot of common mode choke coil l2, and the other end of resistance r19 is connected with resistance r20, resistance r20
The other end connect negative tempperature coefficient thermistor kt after connect connect common mode choke coil l2 outfan 2 foot；Described resistance
The 5th branch road is drawn as outfan 1, described resistance r20 and negative temperature coefficient thermistor power between the junction point of r19 and electric capacity c10
The 6th branch road is drawn as outfan 2 between the junction point of resistance kt.
Further scheme is: the model zm86 2r350l of switching discharge tube fdg.
Further scheme is: rectifier bridge d1, voltage stabilizing chip group, and voltage stabilizing chip group includes voltage stabilizing chip u1, voltage stabilizing core
Piece u2 and voltage stabilizing chip u3, the positive output end of rectifier bridge d1 connects the input of voltage stabilizing chip u1, the outfan of voltage stabilizing chip u1
Outfan as 12v voltage is simultaneously connected with the input of voltage stabilizing chip u3；The negative input end of rectifier bridge d1 connects voltage stabilizing chip
The input of u2, the outfan of voltage stabilizing chip u2 is as the voltage output end of -12v；The outfan of voltage stabilizing chip u3 is as 5v electricity
The outfan of pressure；Voltage stabilizing chip u1 input passes through polar capacitor e1 and electric capacity c1 ground connection respectively, and outfan passes through polarity respectively
Electric capacity e3 and electric capacity c3 ground connection；Voltage stabilizing chip u2 input passes through polar capacitor e2 and electric capacity c2 ground connection respectively, and outfan is respectively
By polar capacitor e4 and electric capacity c4 ground connection；The outfan of voltage stabilizing chip u3 passes through polar capacitor e5 and electric capacity c5 ground connection respectively；
The earth terminal of voltage stabilizing chip group is sequentially connected resistance r1 and the positive light emitting diode d2 connecting to the outfan of voltage stabilizing chip u2；
Voltage stabilizing chip u1 adopts lm7812, and voltage stabilizing chip u2 adopts lm7912, and voltage stabilizing chip u3 adopts lm7805；Rectifier bridge d1 input
The 1 described input 1 of connection, rectifier bridge d1 input 2 connects described input 2.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1., it is characterised in that including 220v alternating current power supply p1,220v alternating current power supply p1 is even for a kind of multiple-output electric power with protection
It is connected to the signal input part of excess voltage protection (1), the outfan of excess voltage protection is connected with interference filter circuit
(2), the outfan of interference filter circuit (2) is connected with plurality of voltages output circuit.
2. as claimed in claim 1 a kind of multiple-output electric power with protection it is characterised in that described excess voltage protection
(1) switching discharge tube fdg, output end p 2, varistor m3, varistor m2 and varistor m1 are included, varistor m1's
One end connects one end of varistor m2, and the other end of varistor m1 is connected with current-limiting resistance x3, and current-limiting resistance x3's is another
End is connected with current-limiting resistance x2, and the other end of current-limiting resistance x2 connects one end of varistor m3, the other end of varistor m2
It is connected with current-limiting resistance x4, the other end of current-limiting resistance x4 connects the other end of varistor m3；Varistor m2 and pressure-sensitive electricity
It is grounded after drawing tie point tandem tap discharge tube fdg between resistance m1, between current-limiting resistance x4 and varistor m3, draw the
Two branch roads connect the n end of 220v alternating current power supply p1, draw the 3rd branch road and connect 220v between current-limiting resistance x3 and current-limiting resistance x2
The l end of alternating current power supply p1；Output end p 2 includes pin 1, pin 2, pin 3 and pin 4, and pin 1 and pin 3 turn on, pin 2 He
Pin 4 turns on；The pin 1 that the 4th branch road connects output end p 2 is drawn, 220v exchanges between varistor m3 and current-limiting resistance x2
The n end of power supply p1 is also connected with the pin 2 of output end p 2.
3. as claimed in claim 1 a kind of with protection multiple-output electric power it is characterised in that interference filter circuit (2) include
The input of common mode choke coil l2 and negative tempperature coefficient thermistor kt, common mode choke coil l2 is connected in parallel on output end p 2 respectively
Pin 3 and pin 4 on, the input of common mode choke coil l2 is also parallel with electric capacity c7, the outfan 1 of common mode choke coil l2
Foot is connected with electric capacity c8, electric capacity c10 and resistance r19, and the other end of electric capacity c8 is connected with electric capacity c9, and the other end of electric capacity c9 connects
Outfan 2 foot of common mode choke coil l2, the other end of electric capacity c10 connects outfan 2 foot of common mode choke coil l2, resistance
The other end of r19 is connected with resistance r20, connects altogether after the other end series connection negative tempperature coefficient thermistor kt of resistance r20
Outfan 2 foot of mould choking-winding l2；The 5th branch road is drawn as output between described resistance r19 and the junction point of electric capacity c10
End 1, draws the 6th branch road as outfan 2 between described resistance r20 and the junction point of negative tempperature coefficient thermistor kt.
4. as claimed in claim 1 a kind of multiple-output electric power with protection it is characterised in that the model of switching discharge tube fdg
For zm86 2r350l.
5. as claimed in claim 3 a kind of with protection multiple-output electric power it is characterised in that plurality of voltages output circuit includes
Rectifier bridge d1, voltage stabilizing chip group are it is characterised in that voltage stabilizing chip group includes voltage stabilizing chip u1, voltage stabilizing chip u2 and voltage stabilizing chip
The positive output end of u3, rectifier bridge d1 connects the input of voltage stabilizing chip u1, and the outfan of voltage stabilizing chip u1 is defeated as 12v voltage
Go out end and be connected with the input of voltage stabilizing chip u3；The negative input end of rectifier bridge d1 connects the input of voltage stabilizing chip u2, voltage stabilizing
The outfan of chip u2 is as the voltage output end of -12v；The outfan of voltage stabilizing chip u3 is as the outfan of 5v voltage；Voltage stabilizing
The input of chip u1 and voltage stabilizing chip u2 and outfan respectively pass through polar capacitor and capacity earth, voltage stabilizing chip u3 defeated
Go out end and pass through polar capacitor and capacity earth；The earth terminal of voltage stabilizing chip group is sequentially connected resistance r1 and positive light emitting diode
D2 is to the outfan of voltage stabilizing chip u2；Rectifier bridge d1 input 1 connects described input 1, and rectifier bridge d1 input 2 connects described
Input 2.
6. as claimed in claim 5 a kind of with protection multiple-output electric power it is characterised in that voltage stabilizing chip u1 adopt
Lm7812, voltage stabilizing chip u2 adopts lm7912, and voltage stabilizing chip u3 adopts lm7805.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911418.7A CN106374759A (en) | 2016-10-19 | 2016-10-19 | Multiplexed output power supply with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911418.7A CN106374759A (en) | 2016-10-19 | 2016-10-19 | Multiplexed output power supply with protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106374759A true CN106374759A (en) | 2017-02-01 |
Family
ID=57895764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911418.7A Pending CN106374759A (en) | 2016-10-19 | 2016-10-19 | Multiplexed output power supply with protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106374759A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201306191Y (en) * | 2008-01-03 | 2009-09-09 | 中国矿业大学 | Mine audible-visual annunciator |
| CN201774717U (en) * | 2010-08-26 | 2011-03-23 | 佛山市顺德区瑞德电子实业有限公司 | SCR resonance half-bridge based LED streetlamp drive power circuit |
| CN202026516U (en) * | 2011-04-08 | 2011-11-02 | 王孝强 | Electronic ballast input filtering loop |
| CN203327349U (en) * | 2013-05-19 | 2013-12-04 | 涿州迅利达创新科技发展有限公司 | Low frequency electrodeless lamp electronic ballast capable of automatically adjusting output frequency |
| CN203562774U (en) * | 2013-11-25 | 2014-04-23 | 四川新力光源股份有限公司 | Alternating-current lightning protection module for LED lighting equipment |
| CN105629963A (en) * | 2016-03-28 | 2016-06-01 | 成都天进仪器有限公司 | Intelligent relay protection testing instrument with lightning protection function |
| CN205304606U (en) * | 2015-12-16 | 2016-06-08 | 安徽三联机器人科技有限公司 | Power supply circuit |
| CN205489512U (en) * | 2016-03-23 | 2016-08-17 | 成都锐奕信息技术有限公司 | Prevent LED street lamp power supply unit of lightning surge |
-
2016
- 2016-10-19 CN CN201610911418.7A patent/CN106374759A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201306191Y (en) * | 2008-01-03 | 2009-09-09 | 中国矿业大学 | Mine audible-visual annunciator |
| CN201774717U (en) * | 2010-08-26 | 2011-03-23 | 佛山市顺德区瑞德电子实业有限公司 | SCR resonance half-bridge based LED streetlamp drive power circuit |
| CN202026516U (en) * | 2011-04-08 | 2011-11-02 | 王孝强 | Electronic ballast input filtering loop |
| CN203327349U (en) * | 2013-05-19 | 2013-12-04 | 涿州迅利达创新科技发展有限公司 | Low frequency electrodeless lamp electronic ballast capable of automatically adjusting output frequency |
| CN203562774U (en) * | 2013-11-25 | 2014-04-23 | 四川新力光源股份有限公司 | Alternating-current lightning protection module for LED lighting equipment |
| CN205304606U (en) * | 2015-12-16 | 2016-06-08 | 安徽三联机器人科技有限公司 | Power supply circuit |
| CN205489512U (en) * | 2016-03-23 | 2016-08-17 | 成都锐奕信息技术有限公司 | Prevent LED street lamp power supply unit of lightning surge |
| CN105629963A (en) * | 2016-03-28 | 2016-06-01 | 成都天进仪器有限公司 | Intelligent relay protection testing instrument with lightning protection function |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170201 |