CN2321167Y - Magnetic ring filter for power supply - Google Patents
Magnetic ring filter for power supply Download PDFInfo
- Publication number
- CN2321167Y CN2321167Y CN 98204046 CN98204046U CN2321167Y CN 2321167 Y CN2321167 Y CN 2321167Y CN 98204046 CN98204046 CN 98204046 CN 98204046 U CN98204046 U CN 98204046U CN 2321167 Y CN2321167 Y CN 2321167Y
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- CN
- China
- Prior art keywords
- power supply
- coil
- magnetic ring
- utility
- model
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a magnetic ring filter for power supply, which belongs to the field of electronic parts. The magnetic ring filter for power supply is composed of a magnetic ring (1), a coil (2), and a capacitor (3). The utility model is characterized in that the coil (2) is wound around the magnetic ring (1); one end of the coil (2) is connected with one end of the capacitor (3); the other end of the capacitor (3) is connected with the ground. The utility model has the advantages of simple structure, favorable wave filtering effect, less magnetic leakage, and small interference in outside, which is an ideal magnetic ring filter for power supply.
Description
The utility model relates to a kind of power supply magnet ring filter, relates to a kind of filter that needs the power supply optimization usefulness of direct current supply specifically, belongs to electronic unit.
At present, existing various the need industry of direct current supply or the most employing of power unit rectifying and wave-filtering (the rectification diode rectification of household electrical appliance, electrochemical capacitor filtering) mode, voltage-stabiliser tube and regulator block mode or the like, these modes mostly adopt electronic original part line welding assembly to form, its complex structure, price height, filter effect are also undesirable.
The purpose of this utility model just is to design a kind of simple in structure, the power supply magnet ring filter of the good wave filtering effect of the magnet ring assembling of employing high magnetic flux.
The purpose of this utility model is achieved in that it mainly is made up of magnet ring (1), coil (2), electric capacity (3), it is characterized in that coil (2) is wound on the magnet ring (1), one end of coil (2) is connected with an end of electric capacity (3), and the other end of electric capacity (3) is connected with ground.
The utility model is compared with prior art: it is simple in structure, and good wave filtering effect is economical and practical, and leakage field is few, and interference to external world is little, is a kind of desirable power supply magnet ring filter.
Below in conjunction with drawings and Examples the utility model is further specified:
Accompanying drawing 1 is the utility model circuit theory diagrams.
Accompanying drawing 2 is the utility model parts magnet ring (1) and coil (2) structural representation.
Accompanying drawing 3 is embodiment of the present utility model under the single supply situation.
Accompanying drawing 4 is embodiment of the present utility model under the duplicate supply situation.
Among the figure: 1, magnet ring, 2, coil, 3, electric capacity.
As we know from the figure, the utility model it mainly by magnet ring (1), coil (2), (3) three elements of electric capacity are formed, described magnet ring (1) is so adopt its inductance value of ring magnetic material of high magnetic flux very big, and leakage field is few, interference to external world is little, its structure is that coil (2) is wound on the magnet ring (1), how much can deciding as required of the size of magnet ring (1) and coil (2) number of turn, one end of coil (2) is connected with an end of electric capacity (3), the other end of electric capacity (3) is connected with ground, the other end of one end of coil (2) and coil (2) is as line end of the present utility model, an end that is coil (2) is connected with DC power supply, DC power supply is represented with " E " among the figure, the other end of coil (2) is connected with load, load represents that with " R " Fig. 3 is the single supply situation among the figure, Fig. 4 is embodiment of the present utility model under the duplicate supply situation, and dashed rectangle is a power supply magnet ring filter for the utility model integral body partly among the figure.
Claims (1)
1, a kind of power supply magnet ring filter, it mainly is made up of magnet ring (1), coil (2), electric capacity (3), it is characterized in that coil (2) is wound on the magnet ring (1), an end of coil (2) is connected with an end of electric capacity (3), and the other end of electric capacity (3) is connected with ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204046 CN2321167Y (en) | 1998-04-28 | 1998-04-28 | Magnetic ring filter for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204046 CN2321167Y (en) | 1998-04-28 | 1998-04-28 | Magnetic ring filter for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321167Y true CN2321167Y (en) | 1999-05-26 |
Family
ID=33960739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98204046 Expired - Fee Related CN2321167Y (en) | 1998-04-28 | 1998-04-28 | Magnetic ring filter for power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321167Y (en) |
-
1998
- 1998-04-28 CN CN 98204046 patent/CN2321167Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |