CN201409096Y - High-frequency and high-voltage dust removing power supply with constant-current characteristic - Google Patents
High-frequency and high-voltage dust removing power supply with constant-current characteristic Download PDFInfo
- Publication number
- CN201409096Y CN201409096Y CN2009201383405U CN200920138340U CN201409096Y CN 201409096 Y CN201409096 Y CN 201409096Y CN 2009201383405 U CN2009201383405 U CN 2009201383405U CN 200920138340 U CN200920138340 U CN 200920138340U CN 201409096 Y CN201409096 Y CN 201409096Y
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- China
- Prior art keywords
- series resonance
- voltage
- frequency
- power supply
- transformer
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a high-frequency and high-voltage dust removing power supply with the constant-current characteristic, which aims to solve the problems of a high-frequency and high-voltagepower supply used for the prior electric precipitator, such as small regulating range, easy generation of peak voltage and the like. The utility model adopts the technical scheme that a series resonance inductor Lr2 and a series resonance capacitor Cr2 are further connected in parallel on a series resonance inductor Lr1 and a series resonance capacitor Cr1 of a full-bridge series resonance circuit; and a peak absorption transformer T1 capable of rectifying the voltage peak higher than the supply pressure and sending the voltage peak back to a main power supply is connected in parallel on theinput terminal of a high frequency transformer T1. Therefore, the utility model has the advantages of large regulating range, capability of absorbing peak voltage and the like.
Description
Affiliated technical field
The utility model relates to a kind of dedusting power source, relates in particular to a kind of high-frequency high-voltage dust removing power supply of being made up of current transformer, voltage transformer, contactor, three-phase rectifier, electric capacity, full-bridge series resonance circuit and local antiresonant circuit with constant-current characteristics.
Background technology
At present, the high-frequency and high-voltage power supply that a kind of like this electric precipitation is used is disclosed on the market, its design feature is: it comprises current transformer, voltage transformer, contactor, three-phase rectifier, electric capacity, full-bridge series resonance circuit and local antiresonant circuit, but this power adjustment scope is little, when inversion, easily produce peak voltage, easily make circuit element impaired, influenced the useful life of high-frequency and high-voltage power supply.
Summary of the invention
The purpose of this utility model provides the high-frequency high-voltage dust removing power supply with constant-current characteristics that a kind of adjustable range is big, can absorb peak voltage.
For achieving the above object, the utlity model has the high-frequency high-voltage dust removing power supply of constant-current characteristics, comprise current transformer, voltage transformer, contactor, three-phase rectifier, electric capacity, full-bridge series resonance circuit and local antiresonant circuit, on the series resonance inductance of full-bridge series resonance circuit and series resonance electric capacity, also be parallel with series resonance inductance and series resonance electric capacity, be parallel with the anti-spike of sending main power source back to of the due to voltage spikes rectification that can will be higher than supply voltage at the high frequency transformer input and absorb transformer.
The capacitance-resistance loop is made of electric capacity and resistance.
Be connected with switch between series resonance inductance and series resonance electric capacity and series resonance inductance and the series resonance electric capacity.
After adopting this structure, owing on the series resonance inductance of full-bridge series resonance circuit and series resonance electric capacity, also be parallel with series resonance inductance and series resonance electric capacity, make the utility model increase adjustable range, absorb transformer owing to be parallel with the anti-spike of sending main power source back to of the due to voltage spikes rectification that can will be higher than supply voltage again at the high frequency transformer input, guaranteed circuit stability, simultaneously, also reduced loss.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing is the circuit diagram that the utlity model has the high-frequency high-voltage dust removing power supply of constant-current characteristics.
Among the figure: 1. current transformer, 2. voltage transformer, 3. contactor, 4. switch, V1 three-phase rectifier C1 electric capacity, Lr1 series resonance inductance, Lr2 series resonance inductance, Cr1 series resonance electric capacity, Cr2 series resonance electric capacity, C2 electric capacity, R resistance, T1 high frequency transformer, T2 spike absorb transformer.
Embodiment
The utlity model has the high-frequency high-voltage dust removing power supply of constant-current characteristics shown in the accompanying drawing, comprise current transformer 1, voltage transformer 2, contactor 3, three-phase rectifier V1, capacitor C 1, full-bridge series resonance circuit and local antiresonant circuit, on the series resonance inductance L r1 of full-bridge series resonance circuit and series resonance capacitor C r1, also be parallel with series resonance inductance L r2 and series resonance capacitor C r2, be parallel with the anti-spike of sending main power source back to of the due to voltage spikes rectification that can will be higher than supply voltage at high frequency transformer T1 input and absorb transformer T2; The capacitance-resistance loop is made of capacitor C 2 and resistance R; Be connected with switch 4 between series resonance inductance L r1 and series resonance capacitor C r1 and series resonance inductance L r2 and the series resonance capacitor C r2.
Claims (3)
1. high-frequency high-voltage dust removing power supply with constant-current characteristics, comprise current transformer, voltage transformer, contactor, three-phase rectifier, electric capacity, full-bridge series resonance circuit and local antiresonant circuit, it is characterized in that: on the series resonance inductance L r1 of full-bridge series resonance circuit and series resonance capacitor C r1, also be parallel with series resonance inductance L r2 and series resonance capacitor C r2, be parallel with the anti-spike of sending main power source back to of the due to voltage spikes rectification that can will be higher than supply voltage at high frequency transformer T1 input and absorb transformer T2.
2. the high-frequency high-voltage dust removing power supply with constant-current characteristics according to claim 1, it is characterized in that: the capacitance-resistance loop is made of capacitor C 2 and resistance R.
3. the high-frequency high-voltage dust removing power supply with constant-current characteristics according to claim 1 is characterized in that: be connected with switch 4 between series resonance inductance L r1 and series resonance capacitor C r1 and series resonance inductance L r2 and the series resonance capacitor C r2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201383405U CN201409096Y (en) | 2009-05-11 | 2009-05-11 | High-frequency and high-voltage dust removing power supply with constant-current characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201383405U CN201409096Y (en) | 2009-05-11 | 2009-05-11 | High-frequency and high-voltage dust removing power supply with constant-current characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201409096Y true CN201409096Y (en) | 2010-02-17 |
Family
ID=41680042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201383405U Expired - Fee Related CN201409096Y (en) | 2009-05-11 | 2009-05-11 | High-frequency and high-voltage dust removing power supply with constant-current characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201409096Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139244A (en) * | 2011-02-16 | 2011-08-03 | 王红星 | High frequency power supply for electric dust removal |
| CN108695683A (en) * | 2017-04-10 | 2018-10-23 | 中国科学院光电研究院 | quantum cascade laser drive source circuit |
-
2009
- 2009-05-11 CN CN2009201383405U patent/CN201409096Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139244A (en) * | 2011-02-16 | 2011-08-03 | 王红星 | High frequency power supply for electric dust removal |
| CN102139244B (en) * | 2011-02-16 | 2013-02-13 | 王红星 | High frequency power supply for electric dust removal |
| CN108695683A (en) * | 2017-04-10 | 2018-10-23 | 中国科学院光电研究院 | quantum cascade laser drive source circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20180511 |