CN202364117U - Internal power supply circuit of concentrator - Google Patents
Internal power supply circuit of concentrator Download PDFInfo
- Publication number
- CN202364117U CN202364117U CN2011205109178U CN201120510917U CN202364117U CN 202364117 U CN202364117 U CN 202364117U CN 2011205109178 U CN2011205109178 U CN 2011205109178U CN 201120510917 U CN201120510917 U CN 201120510917U CN 202364117 U CN202364117 U CN 202364117U
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- Prior art keywords
- power supply
- capacitor
- supply chip
- resistance
- pin
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Abstract
The utility model discloses an internal power supply circuit of a concentrator. The internal power supply circuit comprises a power supply chip N1, capacitors C1, C2, C3, C4 and C5, resistors R1, R2, R3, R4, R5 and R6, an inductor L1 and a diode VD1, wherein a pin 5 of the power supply chip N1 is connected with one end of a capacitor C6, and the other end of the capacitor C6 is grounded. Compared with the prior art, the internal power supply circuit of the concentrator has the advantages that the pin 5 of the power supply chip is connected with a grounded capacitor, so that the interference resistance of the power supply chip can be effectively improved, and high-frequency carrier signals are prevented from interfering the power supply chip.
Description
Technical field
The utility model relates to a kind of concentrator interior power supply circuit.
Background technology
As shown in Figure 1; Existing a kind of concentrator interior power supply circuit; Comprise power supply chip N101; The pin 8 of power supply chip N101 is connected with an end of the input IN of circuit, first capacitor C 101 and an end of first resistance R 101, the other end ground connection of first capacitor C 101, and the other end of first resistance R 101 is connected with the pin 6 of power supply chip N101; The pin 3 of power supply chip N101 is through second resistance R, 102 ground connection; Pin 4 ground connection of power supply chip N101; The pin 7 of power supply chip N101 is through second capacitor C, 102 ground connection; The pin one of power supply chip N1 is connected with the 3rd capacitor C 103, an end of inductance L 101 and the negative pole of diode VD101; The other end of the 3rd capacitor C 103 is connected with the pin two of power supply chip N101; The plus earth of diode VD101, the other end of inductance L 101 is connected with an end of the 4th resistance R 104 with the 6th resistance R 106, the 5th resistance R 105; The other end of the 6th resistance R 106 and the 5th resistance R 105 all is connected with an end of the 4th capacitor C 104, an end of the 5th capacitor C 105 and the output OUT of circuit, the equal ground connection of the other end of the 4th capacitor C 104 and the 5th capacitor C 105; The other end of the 4th resistance R 104 is connected the other end ground connection of resistance R 103 with the pin 5 of power supply chip N101 and an end of the 3rd resistance R 103.The problem that exists is: when concentrator carried out carrier communication, high-frequency carrier signal caused interference to power supply chip easily, caused power supply chip the situation that out-put supply falls unusually to occur.
The utility model content
The utility model technical problem to be solved is: a kind of concentrator interior power supply circuit that can effectively avoid high-frequency carrier signal power supply chip to be caused interference is provided.
The utility model addresses the above problem the technical scheme that is adopted: a kind of concentrator interior power supply circuit; Comprise power supply chip N1; The pin 8 of power supply chip N1 is connected with an end of the input IN of circuit, first capacitor C 1 and an end of first resistance R 1; The other end ground connection of first capacitor C 1, the other end of first resistance R 1 is connected with the pin 6 of power supply chip N1; The pin 3 of power supply chip N1 is through second resistance R, 2 ground connection; Pin 4 ground connection of power supply chip N1; The pin 7 of power supply chip N1 is through second capacitor C, 2 ground connection; The pin one of power supply chip N1 is connected with the 3rd capacitor C 3, an end of inductance L 1 and the negative pole of diode VD1; The other end of the 3rd capacitor C 3 is connected with the pin two of power supply chip N1; The plus earth of diode VD1, the other end of inductance L 1 is connected with an end of the 4th resistance R 4 with the 6th resistance R 6, the 5th resistance R 5; The other end of the 6th resistance R 6 and the 5th resistance R 5 all is connected with an end of the 4th capacitor C 4, an end of the 5th capacitor C 5 and the output OUT of circuit, the equal ground connection of the other end of the 4th capacitor C 4 and the 5th capacitor C 5; The other end of the 4th resistance R 4 is connected the other end ground connection of resistance R 3 with the pin 5 of power supply chip N1 and an end of the 3rd resistance R 3; The pin 5 of said power supply chip N1 also is connected with an end of the 6th capacitor C 6, the other end ground connection of the 6th capacitor C 6.
Described power supply chip N1 is the LM5007 power supply chip.
Compared with prior art, the advantage of the utility model is: the pin 5 of power supply chip increases the antijamming capability that the electric capacity that connects a ground connection can effectively improve power supply chip, avoids high-frequency carrier signal that power supply chip is caused interference.
Description of drawings
Fig. 1 is the electrical schematic diagram of existing a kind of concentrator interior power supply circuit.
Fig. 2 is the electrical schematic diagram of the utility model concentrator interior power supply circuit.
Embodiment
Embodiment to the utility model further describes below in conjunction with accompanying drawing.
As shown in Figure 2; A kind of concentrator interior power supply circuit of the utility model; Comprise power supply chip N1; The pin 8 of power supply chip N1 is connected with an end of the input IN of circuit, first capacitor C 1 and an end of first resistance R 1, the other end ground connection of first capacitor C 1, and the other end of first resistance R 1 is connected with the pin 6 of power supply chip N1; The pin 3 of power supply chip N1 is through second resistance R, 2 ground connection; Pin 4 ground connection of power supply chip N1; The pin 7 of power supply chip N1 is through second capacitor C, 2 ground connection; The pin one of power supply chip N1 is connected with the 3rd capacitor C 3, an end of inductance L 1 and the negative pole of diode VD1; The other end of the 3rd capacitor C 3 is connected with the pin two of power supply chip N1; The plus earth of diode VD1, the other end of inductance L 1 is connected with an end of the 4th resistance R 4 with the 6th resistance R 6, the 5th resistance R 5; The other end of the 6th resistance R 6 and the 5th resistance R 5 all is connected with an end of the 4th capacitor C 4, an end of the 5th capacitor C 5 and the output OUT of circuit, the equal ground connection of the other end of the 4th capacitor C 4 and the 5th capacitor C 5; The other end of the 4th resistance R 4 is connected the other end ground connection of resistance R 3 with the pin 5 of power supply chip N1 and an end of the 3rd resistance R 3; It is characterized in that: the pin 5 of said power supply chip N1 also is connected with an end of the 6th capacitor C 6, the other end ground connection of the 6th capacitor C 6.
Described power supply chip N1 is the LM5007 power supply chip.
Claims (2)
1. concentrator interior power supply circuit; Comprise power supply chip N1; The pin 8 of power supply chip N1 is connected with an end of the input IN of circuit, first capacitor C 1 and an end of first resistance R 1; The other end ground connection of first capacitor C 1, the other end of first resistance R 1 is connected with the pin 6 of power supply chip N1; The pin 3 of power supply chip N1 is through second resistance R, 2 ground connection; Pin 4 ground connection of power supply chip N1; The pin 7 of power supply chip N1 is through second capacitor C, 2 ground connection; The pin one of power supply chip N1 is connected with the 3rd capacitor C 3, an end of inductance L 1 and the negative pole of diode VD1; The other end of the 3rd capacitor C 3 is connected with the pin two of power supply chip N1; The plus earth of diode VD1, the other end of inductance L 1 is connected with an end of the 4th resistance R 4 with the 6th resistance R 6, the 5th resistance R 5; The other end of the 6th resistance R 6 and the 5th resistance R 5 all is connected with an end of the 4th capacitor C 4, an end of the 5th capacitor C 5 and the output OUT of circuit, the equal ground connection of the other end of the 4th capacitor C 4 and the 5th capacitor C 5; The other end of the 4th resistance R 4 is connected the other end ground connection of resistance R 3 with the pin 5 of power supply chip N1 and an end of the 3rd resistance R 3; It is characterized in that: the pin 5 of said power supply chip N1 also is connected with an end of the 6th capacitor C 6, the other end ground connection of the 6th capacitor C 6.
2. concentrator interior power supply circuit according to claim 1 is characterized in that: described power supply chip N1 is the LM5007 power supply chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205109178U CN202364117U (en) | 2011-12-09 | 2011-12-09 | Internal power supply circuit of concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205109178U CN202364117U (en) | 2011-12-09 | 2011-12-09 | Internal power supply circuit of concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364117U true CN202364117U (en) | 2012-08-01 |
Family
ID=46575273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205109178U Expired - Lifetime CN202364117U (en) | 2011-12-09 | 2011-12-09 | Internal power supply circuit of concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364117U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092414A (en) * | 2014-06-23 | 2014-10-08 | 济南科亚电子科技有限公司 | Efficient double-brush direct-current driver |
| CN105674441A (en) * | 2016-03-04 | 2016-06-15 | 马翼 | Novel electrostatic dust removal device based on internet of things |
| WO2017147902A1 (en) * | 2016-03-04 | 2017-09-08 | 马翼 | Novel electrostatic dust removal apparatus based on internet of things |
-
2011
- 2011-12-09 CN CN2011205109178U patent/CN202364117U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092414A (en) * | 2014-06-23 | 2014-10-08 | 济南科亚电子科技有限公司 | Efficient double-brush direct-current driver |
| CN105674441A (en) * | 2016-03-04 | 2016-06-15 | 马翼 | Novel electrostatic dust removal device based on internet of things |
| WO2017147902A1 (en) * | 2016-03-04 | 2017-09-08 | 马翼 | Novel electrostatic dust removal apparatus based on internet of things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315191 Yinzhou Industrial Park, Zhejiang, Ningbo, Yinzhou District, Ningbo Patentee after: NINGBO SANXING MEDICAL ELECTRIC CO., LTD. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo Sanxing Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |