CN109104109A - A kind of high efficiency inversion transformation technique protection circuit - Google Patents
A kind of high efficiency inversion transformation technique protection circuit Download PDFInfo
- Publication number
- CN109104109A CN109104109A CN201811043282.8A CN201811043282A CN109104109A CN 109104109 A CN109104109 A CN 109104109A CN 201811043282 A CN201811043282 A CN 201811043282A CN 109104109 A CN109104109 A CN 109104109A
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- unit
- transformation
- circuit
- inversion
- resistance
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Classifications
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- 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
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of high efficiency inversion transformation techniques to protect circuit; including inversion unit; the inversion unit includes inverter, transformer and transformation resistance; the inversion unit input terminal is equipped with DC filter; the DC filter input terminal is equipped with input DC power; the inversion unit output end is equipped with voltmeter and ammeter; the voltmeter and ammeter output end are equipped with converter unit; the converter unit includes switch unit, display unit and connecting wire, and the converter unit output end is equipped with external load.The present invention is by being equipped with inversion unit, the range of voltage and current is born by detection external load, utilize transformation resistance, in parallel circuit, load is under the constant situation of the voltage of transformation resistance two sides, the electric current in route is adjusted, switching switch connection connecting wire is led on external load, external load is avoided to burn or can not normal use.
Description
Technical field
The present invention relates to inversion transformation technique field, in particular to a kind of high efficiency inversion transformation technique protects circuit.
Background technique
Inversion transformation technique mainly converts low dc voltage in the 220V alternating current of normal use as user's use, and is converting
In the process, it needs to be adjusted the alternating current of inversion according to the range of the receiving voltage and current of external load, avoids voltage
Route is burnt when excessive or voltage is too small, makes external load cisco unity malfunction.Therefore, a kind of high efficiency inversion transformation technique guarantor is invented
Protection circuit is necessary to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of high efficiency inversion transformation techniques to protect circuit, by by the electric current in household lines
After comparing with voltage and external load receiving voltage and current, using transformation resistance, in parallel circuit, load is being converted
Under the constant situation of the voltage of resistance two sides, the electric current in route is adjusted, switching is switched into connection connecting wire and leads to external bear
In load, avoid external load burn or can not normal use, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of high efficiency inversion transformation technique protects circuit, including
Inversion unit, the inversion unit include inverter, transformer and transformation resistance, and the inversion unit input terminal is filtered equipped with direct current
Wave device, the DC filter input terminal are equipped with input DC power, and the inversion unit output end is equipped with voltmeter and electric current
Table, the voltmeter and ammeter output end are equipped with converter unit, the converter unit include switch unit, display unit and
Connecting wire, the converter unit output end is equipped with external load, specific:
The transformer includes step-up transformer and step-down transformer, the number of turns of the main primary coil of step-up transformer
Less than the number of turns of secondary coil, facilitate and increase the voltage passed through, the number of turns of the main primary coil of step-down transformer is greater than
The number of turns of secondary coil, facilitating reduces the voltage passed through；
The transformation resistance mainly adjusts the resistance sizes in route, in parallel circuit, loads in transformation resistance two sides
The constant situation of voltage under, achieve the effect that adjust electric current, it is convenient that circuit is protected, to transformation resistance carry out using
When, it can need to replace transformation resistance according to area, the resistance value size according to transformation resistance is facilitated to adapt to eachly
Area, resistance value cross the electric energy of conference significantly losser circuit, so that the temperature that transformation resistance acting generates is quicklyd increase, it can be to change
It changes resistance and generates greatly damage, the transformation resistance is that multiple rheostats are together in series and are used together, and is become when one
When hindering device damage, the integrated regulation situation of electric current in route is had no effect on, can guarantee that the electric current in route is adjusted, from
And increase the service life of transformation resistance；
The switch unit includes microprocessor and switching switch, and the microprocessor is mainly according to the normal work of external load
The maximum current born when making is calculated and is compared, when being greater than the electric current that household lines are born by electric current, micro- place
Device controlling to the electric current passed through is managed, the switching switch selects the circuit passed through, passes through efficiency to route
Guaranteed；
The display unit mainly includes display and diode, the diode mainly make by circuit brighten, institute
Stating display will show that then bright to access mark, display unit can convert circuit diagram to by the circuit diagram of circuit
In digital data transmission to the mobile phone of domestic consumer, domestic consumer is facilitated to understand at any time route process, increases safety effect
It answers.
Preferably, the inversion unit and DC filter are electrically connected by conducting wire, the DC filter and input
DC power supply is electrically connected by conducting wire.
Preferably, the inversion unit and converter unit are electrically connected with voltmeter, and the inversion unit and transformation are single
Member is electrically connected with ammeter.
Preferably, the inversion unit and converter unit are electrically connected, and the converter unit and external load are electrically connected.
Preferably, the transformer, transformation resistance and connecting wire with switch unit be electrically connected, the transformer and
Transformation resistance is electrically connected with inverter, and the switch unit and display unit are electrically connected.
Technical effect and advantage of the invention:
1, the present invention is conducive to the using effect for increasing external load, by detecting external bear by being equipped with inversion unit
The range for bearing voltage and current is carried, using transformation resistance, in parallel circuit, the voltage loaded in transformation resistance two sides is constant
Situation under, adjust route in electric current, will switching switch connection connecting wire lead on external load, avoid external load from burning
Ruin or can not normal use, transformation resistance is carried out in use, can need to replace transformation resistance according to area, it is convenient
Adapt to each area according to the resistance value size of transformation resistance, resistance value crosses the electric energy of conference significantly losser circuit, thus fastly
Speed increases the temperature that transformation resistance acting generates, and greatly damage can be generated to transformation resistance resistance value；
2, the present invention is conducive to be protected by route, switch unit includes microprocessor by being equipped with switch unit
It is switched with switching, the voltage value and current value that microprocessor is mainly born according to external load are calculated, to the electricity passed through
Stream control, and switching switch selects the circuit passed through, to being guaranteed by efficiency for route.
Detailed description of the invention
Fig. 1 is overall system structure schematic diagram of the invention；
Fig. 2 is inversion unit structural schematic diagram of the invention；
Fig. 3 is converter unit structural schematic diagram of the invention；
Fig. 4 is circuit switching system structure diagram of the invention；
In figure: 1 inversion unit, 2 inverters, 3 transformers, 4 transformation resistances, 5 DC filters, 6 input DC powers, 7
Voltmeter, 8 ammeters, 9 converter units, 10 switch units, 11 display units, 12 connecting wires, 13 external loads.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
The present invention provides a kind of high efficiency inversion transformation techniques as shown in Figs 1-4 to protect circuit, including inversion unit 1, institute
Stating inversion unit 1 includes inverter 2, transformer 3 and transformation resistance 4, and 1 input terminal of inversion unit is equipped with DC filter 5,
5 input terminal of DC filter is equipped with input DC power 6, and 1 output end of inversion unit is equipped with voltmeter 7 and ammeter
8, the voltmeter 7 and 8 output end of ammeter are equipped with converter unit 9, and the converter unit 9 includes switch unit 10, display
Unit 11 and connecting wire 12,9 output end of converter unit is equipped with external load 13, specific:
The transformer 3 includes step-up transformer and step-down transformer, the circle of the main primary coil of step-up transformer
Number is less than the number of turns of secondary coil, facilitates and increases the voltage passed through, and the number of turns of the main primary coil of step-down transformer is big
In the number of turns of secondary coil, facilitating reduces the voltage passed through；
Mainly adjustment is by the resistance sizes in route for the transformation resistance 4, in parallel circuit, loads in transformation resistance
Under the constant situation of the voltage of two sides, reaches and adjust electric current effect, it is convenient that circuit is protected, transformation resistance 4 is made
Used time can need to replace transformation resistance 4 according to area, and it is each to adapt to facilitate the resistance value size according to transformation resistance 4
A area, resistance value cross the electric energy of conference significantly losser circuit, so that the temperature that the acting of transformation resistance 4 generates is quicklyd increase,
Greatly damage can be generated to the resistance value of transformation resistance 4, the transformation resistance 4 is that multiple rheostats are together in series and are used together
, when a rheostat damages, the integrated regulation situation of electric current in route is had no effect on, can be guaranteed to the electric current in route
It is adjusted, to increase the service life of transformation resistance 4；
The switch unit 10 include microprocessor and switching switch, the microprocessor mainly according to external load 13 just
The maximum current often born when work is calculated and is compared, when being greater than the electric current that household lines are born by electric current,
Microprocessor is controlled the electric current passed through, and the switching switch selects the circuit passed through, is passed through to route
Efficiency is guaranteed；
The display unit 11 mainly includes display and diode, the diode mainly make by circuit brighten,
The display will be shown by the circuit diagram of circuit, then bright to access mark, and display unit 11 can turn circuit diagram
It turns in digital data transmission to the mobile phone of domestic consumer, domestic consumer is facilitated to understand at any time route process, increase peace
Full effect.
The effect of the embodiment technical solution are as follows: make to accommodate the voltage drop at 13 both ends of external load by the effect of decompression
Low (raising), thus make voltage be applicable in the voltage of external load 13, can also pass through on circuit switching to transformation resistance 4
The resistance value for increasing (reduction) transformation resistance 4 loads under the constant situation of the voltage of 4 two sides of transformation resistance in parallel circuit,
Reach and adjust electric current effect, reduce the electric current in (raising) circuit, then by switching switch connection after the calculating of microprocessor
Connecting wire 12 is led on external load 13, avoid external load burn or can not normal use, transformation resistance 4 is multiple variable resistances
Device, which is together in series, to be used together, and when a rheostat damages, has no effect on the integrated regulation situation of electric current in route, to change
Resistance 4 is changed to carry out in use, can be needed to replace transformation resistance 4 according to area, resistance value is crossed conference and is significantly lost
The electric energy of circuit can generate greatly damage, when to line to quickly increase the temperature that the acting of transformation resistance 4 generates to resistance value
It after a period of time is adjusted in electric current in road, needs to replace transformation resistance 4, facilitates and increase the lasting using effect of circuit
Fruit increases the safety in utilization of circuit while guaranteeing that electric current will not generate damage to circuit.
Embodiment 2:
The inversion unit 1 is electrically connected with DC filter 5 by conducting wire, can directly be filtered passing through in route
DC conversion afterwards is alternating current, and the DC filter 5 is electrically connected with input DC power 6 by conducting wire, by outer
It connects input DC power 6 to be filtered by voltage of the DC filter 5 to other frequencies, avoids alternating current to the shadow of route
It rings.
The inversion unit 1 and converter unit 9 are electrically connected with voltmeter 7, are facilitated in circuit and are accommodated in external load
The voltage swing at 13 both ends, the inversion unit 1 and converter unit 9 are electrically connected with ammeter 8, are changed by circuit
Size of current facilitates external load 13 to be applicable in.
The inversion unit 1 is electrically connected with converter unit 9, and the converter unit 9 is electrically connected with external load 13, energy
Enough routes by voltage and current after transformation lead to external load 13 by connecting wire 12.
The transformer 3, transformation resistance 4 and connecting wire 12 are electrically connected with switch unit 10,3 He of transformer
Transformation resistance 4 is electrically connected with inverter 2, and the switch unit 10 is electrically connected with display unit 11, and diode mainly makes
By circuit brighten, display will be shown by the circuit of circuit, then bright to access mark, facilitate switch unit 10 right
Route switches over.
Working principle of the present invention:
Referring to Figure of description 2, attached drawing 3 and attached drawing 4, by direct current be converted into alternating current by inverter 2, pass through
After microprocessor storage calculates, the electric current lotus and voltage that the electric current in circuit and voltage and household lines are born at this time are carried out pair
Than being switched circuit switching to transformer 3 using switching if the maximum bearing ability by voltage more than (being lower than) household lines
On, making to accommodate by the effect of decompression (boosting) reduces (raising) in the voltage at 13 both ends of external load, to make external load
13 can work under normal working voltage, can also convert electricity by increase (reduction) on circuit switching to transformation resistance 4
The resistance value of resistance 4 loads under the constant situation of the voltage of 4 two sides of transformation resistance in parallel circuit, reaches and adjusts electric current effect
Fruit reduces the electric current in (raising) circuit, and then after the calculating of microprocessor, the electric current in circuit is being no more than household lines just
After the rated current being often used, switching is switched into connection connecting wire 12 and is led on external load 13, external load 13 is avoided to burn
Ruin or can not normal use, transformation resistance 4 hinder in use, can be needed to replace transformation resistance 4 according to area
It was worth the electric energy of conference significantly losser circuit, and to quickly increase the temperature that the acting of transformation resistance 4 generates, resistance value can be produced
Raw greatly damage；
Referring to Figure of description 1, by external input DC power 6 by DC filter 5 to the voltage of other frequencies
It is filtered, avoids influence of the alternating current to route, DC power conversion is then passed through at alternating current by electric current by inversion unit 1
Table 8 and voltmeter 7, to be measured to the voltage and current in circuit, the voltage finally born according to external load 13
The voltage and current in circuit is adjusted using converter unit 9 with current range, increases the using effect of external load 13.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (5)
1. a kind of high efficiency inversion transformation technique protects circuit, including inversion unit (1), it is characterised in that: inversion unit (1) packet
Inverter (2), transformer (3) and transformation resistance (4) are included, inversion unit (1) input terminal is equipped with DC filter (5), institute
DC filter (5) input terminal is stated equipped with input DC power (6), inversion unit (1) output end be equipped with voltmeter (7) and
Ammeter (8), the voltmeter (7) and ammeter (8) output end are equipped with converter unit (9), and the converter unit (9) includes
Switch unit (10), display unit (11) and connecting wire (12), converter unit (9) output end are equipped with external load
(13), specific:
The transformer (3) includes step-up transformer and step-down transformer, the number of turns of the main primary coil of step-up transformer
Less than the number of turns of secondary coil, facilitate and increase the voltage passed through, the number of turns of the main primary coil of step-down transformer is greater than
The number of turns of secondary coil, facilitating reduces the voltage passed through；
The transformation resistance (4) mainly adjusts the resistance sizes in route, in parallel circuit, loads in transformation resistance (4) two
Under the constant situation of the voltage of side, achieve the effect that adjust electric current, it is convenient that circuit is protected, transformation resistance (4) are carried out
In use, can be needed to replace transformation resistance (4) according to area, facilitate according to the resistance value size of transformation resistance (4) come
Adapt to each area, resistance value crosses the electric energy of conference significantly losser circuit, generates to quickly increase transformation resistance (4) acting
Temperature, can to transformation resistance (4) resistance value generate greatly damage, the transformation resistance (4) is that multiple rheostats are together in series
It is used together, when a rheostat damages, has no effect on the integrated regulation situation of electric current in route, can guarantee to route
In electric current be adjusted, to increase the service life of transformation resistance (4)；
The switch unit (10) include microprocessor and switching switch, the microprocessor mainly according to external load (13) just
The maximum current often born when work is calculated and is compared, when being greater than the electric current that household lines are born by electric current,
Microprocessor is controlled the electric current passed through, and the switching switch selects the circuit passed through, is passed through to route
Efficiency is guaranteed；
The display unit (11) mainly include display and diode, the diode mainly make by circuit brighten, institute
Stating display will be shown by the circuit diagram of circuit, then bright to access mark, and display unit (11) can turn circuit diagram
It turns in digital data transmission to the mobile phone of domestic consumer, domestic consumer is facilitated to understand at any time route process, increase peace
Full effect.
2. a kind of high efficiency inversion transformation technique according to claim 1 protects circuit, it is characterised in that: the inversion unit
(1) it is electrically connected with DC filter (5) by conducting wire, the DC filter (5) and input DC power (6) pass through conducting wire
It is electrically connected.
3. a kind of high efficiency inversion transformation technique according to claim 1 protects circuit, it is characterised in that: the inversion unit
(1) it is electrically connected with voltmeter (7) with converter unit (9), the inversion unit (1) and converter unit (9) are and ammeter
(8) it is electrically connected.
4. a kind of high efficiency inversion transformation technique according to claim 1 protects circuit, it is characterised in that: the inversion unit
(1) it is electrically connected with converter unit (9), the converter unit (9) and external load (13) are electrically connected.
5. a kind of high efficiency inversion transformation technique according to claim 1 protects circuit, it is characterised in that: the transformer (3),
Transformation resistance (4) and connecting wire (12) are electrically connected with switch unit (10), the transformer (3) and transformation resistance (4)
It is electrically connected with inverter (2), the switch unit (10) and display unit (11) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043282.8A CN109104109A (en) | 2018-09-07 | 2018-09-07 | A kind of high efficiency inversion transformation technique protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043282.8A CN109104109A (en) | 2018-09-07 | 2018-09-07 | A kind of high efficiency inversion transformation technique protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109104109A true CN109104109A (en) | 2018-12-28 |
Family
ID=64865504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811043282.8A Withdrawn CN109104109A (en) | 2018-09-07 | 2018-09-07 | A kind of high efficiency inversion transformation technique protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109104109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421974A (en) * | 2020-11-30 | 2021-02-26 | 杭州朝丽科技有限公司 | Inverter soft switch control circuit and inverter |
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| CN201663429U (en) * | 2010-01-20 | 2010-12-01 | 哈尔滨理工大学 | Off-grid type sine-wave wind power generation controller |
| CN201733239U (en) * | 2010-05-05 | 2011-02-02 | 上海南征电子电气成套有限公司 | High-voltage frequency converter with over-current shunting device |
| CN201750359U (en) * | 2010-07-28 | 2011-02-16 | 青海新能源(集团)有限公司 | Household photovoltaic dual-closed-loop control inverter |
| CN201878036U (en) * | 2010-11-16 | 2011-06-22 | 深圳华意隆电气股份有限公司 | Inverter-type welding and cutting power supply with PFC function |
| CN204122900U (en) * | 2014-07-23 | 2015-01-28 | 中工工具有限公司 | A kind of with the strong IGBT inverter type welder inhaling circuit |
| CN204425191U (en) * | 2015-03-19 | 2015-06-24 | 西安邮电大学 | A kind of chip lead wire bonding ultrasonic power control system |
-
2018
- 2018-09-07 CN CN201811043282.8A patent/CN109104109A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663429U (en) * | 2010-01-20 | 2010-12-01 | 哈尔滨理工大学 | Off-grid type sine-wave wind power generation controller |
| CN201733239U (en) * | 2010-05-05 | 2011-02-02 | 上海南征电子电气成套有限公司 | High-voltage frequency converter with over-current shunting device |
| CN201750359U (en) * | 2010-07-28 | 2011-02-16 | 青海新能源(集团)有限公司 | Household photovoltaic dual-closed-loop control inverter |
| CN201878036U (en) * | 2010-11-16 | 2011-06-22 | 深圳华意隆电气股份有限公司 | Inverter-type welding and cutting power supply with PFC function |
| CN204122900U (en) * | 2014-07-23 | 2015-01-28 | 中工工具有限公司 | A kind of with the strong IGBT inverter type welder inhaling circuit |
| CN204425191U (en) * | 2015-03-19 | 2015-06-24 | 西安邮电大学 | A kind of chip lead wire bonding ultrasonic power control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112421974A (en) * | 2020-11-30 | 2021-02-26 | 杭州朝丽科技有限公司 | Inverter soft switch control circuit and inverter |
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Application publication date: 20181228 |
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