CN105679539A - Rectification filter - Google Patents
Rectification filter Download PDFInfo
- Publication number
- CN105679539A CN105679539A CN201610194615.1A CN201610194615A CN105679539A CN 105679539 A CN105679539 A CN 105679539A CN 201610194615 A CN201610194615 A CN 201610194615A CN 105679539 A CN105679539 A CN 105679539A
- Authority
- CN
- China
- Prior art keywords
- shell
- wire
- rectification
- capacitor
- filtering capacitors
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/032—Inorganic semiconducting electrolytes, e.g. MnO2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/052—Sintered electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/26—Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices with each other
Abstract
The invention discloses a rectification filter. The rectification filter includes two rectification diodes, two filtering capacitors and a bleeder resistor; the two filtering capacitors are connected in series; the two rectification diodes are connected in series; the two series-connected rectification diodes are connected in parallel with the two series-connected filtering capacitors; and the bleeder resistor is connected in parallel with two ends of the two series-connected filtering capacitors. The rectification filter rectifies and filters inputted alternating-current voltage so as to obtain smooth direct-current voltage. The bleeder resistor is used for providing a bleeding pathway for the filtering capacitors, so that electric energy stored at two ends of the filtering capacitors can be bled after the filtering capacitors stop working; the filtering capacitors are tantalum electrolytic capacitors; and under the same withstand voltage and capacitance, the size of the filtering capacitors is small, so that the size of the rectification filter can be decreased, and the performance of the rectification filter is stable, and the rectification filter can maintain excellent electrical performance after long-time work, and the service life of an LED driving circuit can be prolonged.
Description
Technical field
The present invention relates to and arrange filtering circuit field, in particular to the rectifier filer of a kind of stable performance.
Background technology
LED drive circuit is it is necessary to have input rectifying wave filter and output rectification filter device. Input rectifying wave filter needs relatively large electrical capacity rectifier output voltage could be smoothed to allowed band. Output rectification filter device also needs enough electrical capacitys to maintain the stability of circuit and the level and smooth of outward current. Arrange in filtering circuit and all contain electric capacity, and the maximum weakness of electrolytic condenser is that the life-span is short, and unstable properties.
Summary of the invention
The main purpose of the present invention is to provide the rectifier filer of a kind of stable performance, long service life.
The present invention proposes a kind of rectifier filer, described rectifier filer comprises the full wave and voltage doubling rectifying circuit being made up of two rectification diodes, two filter capacitors and a leak resistance, filter capacitor series connection described in two, rectification diode series connection described in two, described in the two of series connection, rectification diode is in parallel with filter capacitor described in connect two, described leak resistance be connected in parallel on series connection two described in the two ends of filter capacitor, form a full wave and voltage doubling rectifying circuit, the capacitor element that described filter capacitor comprises shell and is placed in described shell, described capacitor element comprises capacitor core, negative wire and positive wire, described capacitor core comprises the porous tantalum powder sintering block positive electrode substrate become by high temperature sintering after tantalum metal powder briquetting, the surface of described tantalum powder sintering block positive electrode substrate is formed with TaO5 film through anodic oxidation, a tantalum silk is stretched out to positive terminal in described tantalum powder sintering block positive electrode substrate, described positive wire welds with described tantalum silk, negative pole end in described tantalum powder sintering block positive electrode substrate forms solid electrolyte MnO2 layer through high temperature sintering again by dipping manganous nitrate, described solid electrolyte MnO2 layer is coated with negative pole graphite linings, described negative pole graphite linings is coated with terne metal conductive layer, described negative wire is welded on the negative pole end of described capacitor core, it is electrically connected with described solid electrolyte MnO2 layer, described shell is by the ceramic package being added with the CaO-R2O-ZrO2 base LTCC stupalith that massfraction is 7.5%Al2O3 and at high temperature sintering, described shell is the shell of one end open, the other end at described shell has negative wire hole, described capacitor core loads in described shell from the opening end of described shell, described negative wire stretches out from described negative wire hole, it is filled with epoxy resin between described shell inner chamber and described capacitor element, open end cap at described shell establishes rubber seal plug, positive wire hole is had beyond the Great Wall in described rubber seal, described positive wire stretches out from described positive wire hole.
Preferably, described negative wire is copper wire, and described positive wire is nickel silk.
The rectifier filer of the present invention is used for the voltage of alternating current to input and carries out rectification, filtering, obtains a level and smooth volts DS. Leak resistance in parallel for providing a path of releasing to filter capacitor so that after filter capacitor stopping work, the electric energy of its two ends storage of releasing.
After the tantalum powder briquetting that filter capacitor employing particle is very thin, high temperature sintering becomes the tantalum powder sintering block positive electrode substrate of porous, and the useful area in monomer whose is long-pending is big, it may also be useful to temperature range width; The surface of tantalum powder sintering block positive electrode substrate is formed with TaO5 film through anodic oxidation, and the specific inductivity of TaO5 film is bigger than the specific inductivity of alumite; Negative pole end in tantalum powder sintering block positive electrode substrate forms solid electrolyte MnO2 layer through high temperature sintering again by dipping manganous nitrate, is coated with negative pole graphite linings, is coated with terne metal conductive layer in negative pole graphite linings on solid electrolyte MnO2 layer; Therefore, when identical withstand voltage and electrical capacity, the volume of filter capacitor is less, can reduce the volume of rectifier filer, and stable performance, and long-time work still can keep good electrical property.
Shell is by the ceramic package being added with the CaO-R2O-ZrO2 base LTCC stupalith that massfraction is 7.5%Al2O3 and at high temperature sintering, the Al2O3 wherein added plays structure and modifies ceramic structure effect, along with Al2O3 content increases, the relative permittivity of ceramic package is progressive law, reduce the dielectric loss of electrical condenser, and improve bending strength so that it is profile is firm, is not easily out of shape. Be filled with epoxy resin in the enclosure between chamber and capacitor element, shell can be propped up, make and also insulation effect good, moreover it is possible to protection capacitor element, prevent short circuit or electric leakage, make rectifier filer safer.
Accompanying drawing explanation
Fig. 1 is the schematic circuit of the rectifier filer of the present invention;
Fig. 2 is the sectional view of the capacitor core of the filter capacitor in the rectifier filer of the present invention;
Fig. 3 is the sectional view of the filter capacitor in the rectifier filer of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
Referring to figs. 1 through Fig. 3, it is proposed to an embodiment of the rectifier filer of the present invention:
This rectifier filer comprises the full wave and voltage doubling rectifying circuit being made up of two rectification diode D1, D2, two filter capacitors C1, C2 and a leak resistance R, two filter capacitor C1, C2 connect, two rectification diode D1, D2 connect, two rectification diode D1, D2 of series connection are in parallel with two filter capacitor C1, the C2 connected, leak resistance R is connected in parallel on the two ends of two filter capacitor C1, C1 of series connection, forms a full wave and voltage doubling rectifying circuit. Leak resistance R for providing a path of releasing to filter capacitor C1, C2, to stop after work at filter capacitor C1, C2, the electric energy that its two ends of releasing store. During circuit working, the voltage of alternating current of input is carried out rectification, filtering by the full wave and voltage doubling rectifying circuit of two rectifications diode Dl, D2 and two electric capacity C1, C2 compositions, obtains a level and smooth volts DS and exports.
The capacitor element that filter capacitor C1, C2 comprise shell 10 and be placed in shell 10, capacitor element comprises capacitor core 20, negative wire 50 and positive wire 40.Capacitor core 20 comprises the porous tantalum powder sintering block positive electrode substrate 21 become by high temperature sintering after tantalum metal powder briquetting, and the useful area in monomer whose is long-pending is big, it may also be useful to temperature range width. The specific inductivity that the surface of tantalum powder sintering block positive electrode substrate 21 is formed with TaO5 film 22, TaO5 film 22 through anodic oxidation is bigger than the specific inductivity of alumite. Stretching out a tantalum silk 26 to positive terminal in tantalum powder sintering block positive electrode substrate 21, positive wire 40 welds with tantalum silk 26, and positive wire is nickel silk. Negative pole end in tantalum powder sintering block positive electrode substrate 21 forms solid electrolyte MnO2 layer 23 through high temperature sintering again by dipping manganous nitrate, solid electrolyte MnO2 layer 23 is coated with negative pole graphite linings 24, negative pole graphite linings 24 is coated with terne metal conductive layer 25, negative wire 50 is welded on the negative pole end of capacitor core 20, is electrically connected with solid electrolyte MnO2 layer 23. Negative wire 50 is copper wire.
The one end open of shell 10, the other end at shell 10 has negative wire hole, and capacitor core 20 loads in shell 10 from the opening end of shell 10, and negative wire 50 stretches out from negative wire hole. Open end cap at shell 10 establishes rubber seal plug 30, has positive wire hole on rubber seal plug 30, and positive wire 40 stretches out from positive wire hole.
Shell 10 is for by the ceramic package being added with the CaO-R2O-ZrO2 base LTCC stupalith that massfraction is 7.5%Al2O3 and at high temperature sintering, the Al2O3 wherein added plays structure and modifies ceramic structure effect, along with Al2O3 content increases, the relative permittivity of ceramic package is progressive law, reduce the dielectric loss of electrical condenser, and improve bending strength so that it is profile is firm, is not easily out of shape. Between shell 10 inner chamber and capacitor element, it is filled with epoxy resin 60, shell can be propped up so that it is be not easily out of shape, and insulation effect is good, moreover it is possible to protection capacitor element, prevents short circuit or electric leakage, make rectifier filer safer.
This filter capacitor is when identical withstand voltage and electrical capacity, and its volume is less, can reduce the volume of rectifier filer, and stable performance, and long-time work still can keep good electrical property.
The foregoing is only the preferred embodiments of the present invention; not thereby the patent scope of the present invention is limited; every equivalent structure conversion utilizing specification sheets of the present invention and accompanying drawing content to do; or directly or indirectly it is used in other relevant technical fields, all it is included in the scope of patent protection of the present invention with reason.
Claims (2)
1. a rectifier filer, it is characterized in that, described rectifier filer comprises the full wave and voltage doubling rectifying circuit being made up of two rectification diodes, two filter capacitors and a leak resistance, filter capacitor series connection described in two, rectification diode series connection described in two, rectification diode and filter capacitor described in connect two parallel connection described in the two of series connection, described leak resistance be connected in parallel on series connection two described in the two ends of filter capacitor, form a full wave and voltage doubling rectifying circuit, the capacitor element that described filter capacitor comprises shell and is placed in described shell, described capacitor element comprises capacitor core, negative wire and positive wire, described capacitor core comprises the porous tantalum powder sintering block positive electrode substrate become by high temperature sintering after tantalum metal powder briquetting, the surface of described tantalum powder sintering block positive electrode substrate is formed with TaO5 film through anodic oxidation, a tantalum silk is stretched out to positive terminal in described tantalum powder sintering block positive electrode substrate, described positive wire welds with described tantalum silk, negative pole end in described tantalum powder sintering block positive electrode substrate forms solid electrolyte MnO2 layer through high temperature sintering again by dipping manganous nitrate, described solid electrolyte MnO2 layer is coated with negative pole graphite linings, described negative pole graphite linings is coated with terne metal conductive layer, described negative wire is welded on the negative pole end of described capacitor core, it is electrically connected with described solid electrolyte MnO2 layer,Described shell is by the ceramic package being added with the CaO-R2O-ZrO2 base LTCC stupalith that massfraction is 7.5%Al2O3 and at high temperature sintering, described shell is the shell of one end open, the other end at described shell has negative wire hole, described capacitor core loads in described shell from the opening end of described shell, described negative wire stretches out from described negative wire hole, it is filled with epoxy resin between described shell inner chamber and described capacitor element, open end cap at described shell establishes rubber seal plug, positive wire hole is had beyond the Great Wall in described rubber seal, described positive wire stretches out from described positive wire hole.
2. rectifier filer according to claim 1, it is characterised in that, described negative wire is copper wire, and described positive wire is nickel silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194615.1A CN105679539A (en) | 2016-03-31 | 2016-03-31 | Rectification filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194615.1A CN105679539A (en) | 2016-03-31 | 2016-03-31 | Rectification filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105679539A true CN105679539A (en) | 2016-06-15 |
Family
ID=56225629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610194615.1A Pending CN105679539A (en) | 2016-03-31 | 2016-03-31 | Rectification filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105679539A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764844A (en) * | 1986-06-13 | 1988-08-16 | Murata Manufacturing Co., Ltd. | Electronic component with terminal caps |
| CN203181275U (en) * | 2012-12-31 | 2013-09-04 | 陈榕锦 | LED drive circuit |
| CN104616891A (en) * | 2015-02-04 | 2015-05-13 | 宁波波英电子有限公司 | Capacitor |
| CN104916435A (en) * | 2015-06-28 | 2015-09-16 | 吕杨 | Capacitor |
-
2016
- 2016-03-31 CN CN201610194615.1A patent/CN105679539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764844A (en) * | 1986-06-13 | 1988-08-16 | Murata Manufacturing Co., Ltd. | Electronic component with terminal caps |
| CN203181275U (en) * | 2012-12-31 | 2013-09-04 | 陈榕锦 | LED drive circuit |
| CN104616891A (en) * | 2015-02-04 | 2015-05-13 | 宁波波英电子有限公司 | Capacitor |
| CN104916435A (en) * | 2015-06-28 | 2015-09-16 | 吕杨 | Capacitor |
Non-Patent Citations (1)
| Title |
|---|
| 肖景和: "《电子元器件识别与检测百问百答》", 31 July 2009, 北京：人民邮电出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101064217A (en) | Solid electrolytic capacitor assembly | |
| CN104599846A (en) | Chip high-voltage miniature long-life aluminum electrolytic capacitor and manufacturing method thereof | |
| CN201449902U (en) | Self-healing foil type electric power capacitor of oil immersion composite medium | |
| JP2016171311A (en) | Ultrahigh voltage capacitor assembly | |
| JP2005223197A (en) | Electrolytic capacitor | |
| CN105679539A (en) | Rectification filter | |
| CN105702469A (en) | Full-wave voltage-doubling rectifying circuit | |
| CN105702462A (en) | Rectifier filter with simple circuit | |
| CN105702463A (en) | Anti-creeping rectifier filter | |
| CN105810438A (en) | Light emitting diode (LED) driving power supply for driving LED | |
| CN114709081A (en) | High-capacity low-voltage chip type laminated aluminum capacitor and preparation method thereof | |
| CN105742055A (en) | Rectifier filter with stable performance | |
| CN207282318U (en) | A kind of special anxious charge and discharge capacitance device of percussion welder | |
| CN105743366A (en) | Safe and stable rectifier filter | |
| CN105764190A (en) | Safe and stable LED driving device | |
| CN105792420A (en) | LED driving device with stable performance | |
| CN105590752A (en) | High-efficiency aluminum electrolytic capacitor | |
| CN203312043U (en) | Solid electrolyte aluminum electrolytic capacitor for AC circuit | |
| CN105702461A (en) | Simple and safe rectifier filter | |
| CN105828476A (en) | LED driving power supply with good heat dissipation | |
| CN105873266A (en) | Anti-creeping LED drive device | |
| CN105873267A (en) | LED drive device | |
| CN105722275A (en) | LED drive device with stable performance | |
| CN105679541A (en) | Uneasily-deformable electrolytic capacitor | |
| CN105873264A (en) | Light emitting diode (LED) driving power supply having current-limiting protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |
|
| WD01 | Invention patent application deemed withdrawn after publication |