CN203491907U - Voltage-regulator tube power supply applied to router - Google Patents
Voltage-regulator tube power supply applied to router Download PDFInfo
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- CN203491907U CN203491907U CN201320651547.9U CN201320651547U CN203491907U CN 203491907 U CN203491907 U CN 203491907U CN 201320651547 U CN201320651547 U CN 201320651547U CN 203491907 U CN203491907 U CN 203491907U
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Abstract
The utility model discloses a voltage-regulator tube power supply applied to a router. The power supply comprises a transformer, a first diode, a second diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first resistor, a second resistor, a potentiometer a three-terminal voltage stabilizer, a first voltage output end and a second voltage output end. The power supply is simple in structure, convenient and practical. The power supply is additionally provided with a negative voltage auxiliary power supply to improve stability and enable long-term usage. The power supply is a product worthy popularizing.
Description
Technical field
The utility model relates to a kind of voltage-stabiliser tube power supply, relates in particular to a kind of voltage-stabiliser tube power supply that is applied to router.
Background technology
Router is because the normal phase is in work higher load condition, and router need to be processed bulk information, through using for a long time, there will be loose contact, voltage instability, and the situation of unstable working condition, can cause router short circuit and deadlock.
Utility model content
The purpose of this utility model provides a kind of voltage-stabiliser tube power supply that is applied to router with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises transformer, rectifier, the first diode, the second diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first resistance, the second resistance, potentiometer, three terminal regulator, the first voltage output end and second voltage output, the live wire end of power supply is connected with the first end of the first winding of described transformer, the first end of described the second winding is connected with the power input of described rectifier, the second end of the second winding of described transformer is connected with the power input of described rectifier, the anodal while of described rectifier and the first end of described the second electric capacity, described the 3rd first end of electric capacity and the first end of described three terminal regulator are connected, the negative pole while of described rectifier and the first end of described the 3rd winding, the first end of described the first electric capacity, the second end of described the second electric capacity, the second end of described the 3rd electric capacity, the negative pole end of described the second diode, the second end of described the 4th electric capacity, ground connection after the second end of described the 5th electric capacity is connected with described second voltage output, the second end of the 3rd winding of described transformer is connected with the negative pole of described the first diode, the second end of the first winding of described transformer is connected with the zero line of described power supply, the anodal of described the first diode is connected with the first end of described the first resistance with the second end of described the first electric capacity simultaneously, the second end of described the first resistance is connected with the positive pole of described the second diode and the first end of described potentiometer simultaneously, the sliding end while of described potentiometer and the second end of described three terminal regulator, the second end of described potentiometer is connected with the second end of described the second resistance, the 3rd end while of described three terminal regulator and the first end of described the second resistance, the first end of described the 4th electric capacity, the first end of described the 5th electric capacity is connected with described the first voltage output end, the first winding of described transformer, the second winding, the 3rd winding shares an iron core.
The beneficial effects of the utility model are:
The utility model line construction is simple, convenient and practical, has increased by one group of negative pressure accessory power supply, and stability is promoted, and can use for a long time, is a product being worthy to be popularized.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises transformer T, rectifier VD, the first diode D1, the second diode D2, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the first resistance R 1, the second resistance R 2, potentiometer RP, three terminal regulator B, the first voltage output end VO1 and second voltage output VO2, the live wire end of power supply is connected with the first end of the first winding of transformer T, the first end of the second winding is connected with the power input of rectifier VD, the second end of the second winding of transformer T is connected with the power input of rectifier VD, the anodal while of rectifier VD and the first end of the second capacitor C 2, the first end of the 3rd capacitor C 3 is connected with the first end of three terminal regulator B, the negative pole while of rectifier VD and the first end of the 3rd winding, the first end of the first capacitor C 1, the second end of the second capacitor C 2, the second end of the 3rd capacitor C 3, the negative pole end of the second diode D2, the second end of the 4th capacitor C 4, ground connection after the second end of the 5th capacitor C 5 is connected with second voltage output VO2, the second end of the 3rd winding of transformer T is connected with the negative pole of the first diode D1, the second end of the first winding of transformer T is connected with the zero line of power supply, the anodal of the first diode D1 is connected with the first end of the first resistance R 1 with the second end of the first capacitor C 1 simultaneously, the second end of the first resistance R 1 is connected with the first end of potentiometer RP with the positive pole of the second diode D2 simultaneously, the sliding end while of potentiometer RP and the second end of three terminal regulator B, the second end of potentiometer RP is connected with the second end of the second resistance R 2, the 3rd end while of three terminal regulator B and the first end of the second resistance R 2, the first end of the 4th capacitor C 4, the first end of the 5th capacitor C 5 is connected with the first voltage output end VO1, the first winding of transformer T, the second winding, the 3rd winding shares an iron core, the special feature of this product circuit has increased by one group of negative pressure accessory power supply exactly, the anodal voltage to earth of the second diode D2 is-1.25V, the lower end of potentiometer RP is not connected on low side, but at the second diode D2, the output voltage of stabilized voltage power supply still obtains between the output of three terminal regulator B and ground, like this when the resistance set to zero of potentiometer RP, on 1.25V voltage just with the second diode D2 of the second resistance R 2-1.25V offsets, thereby making output voltage is 0V, this circuit can be from 0V tune, more than output voltage can reach 30V.
Claims (2)
1. a voltage-stabiliser tube power supply that is applied to router, it is characterized in that: comprise transformer, rectifier, the first diode, the second diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first resistance, the second resistance, potentiometer, three terminal regulator, the first voltage output end and second voltage output, the live wire end of power supply is connected with the first end of the first winding of described transformer, the first end of described the second winding is connected with the power input of described rectifier, the second end of the second winding of described transformer is connected with the power input of described rectifier, the anodal while of described rectifier and the first end of described the second electric capacity, described the 3rd first end of electric capacity and the first end of described three terminal regulator are connected, the negative pole while of described rectifier and the first end of described the 3rd winding, the first end of described the first electric capacity, the second end of described the second electric capacity, the second end of described the 3rd electric capacity, the negative pole end of described the second diode, the second end of described the 4th electric capacity, ground connection after the second end of described the 5th electric capacity is connected with described second voltage output, the second end of the 3rd winding of described transformer is connected with the negative pole of described the first diode, the second end of the first winding of described transformer is connected with the zero line of described power supply, the anodal of described the first diode is connected with the first end of described the first resistance with the second end of described the first electric capacity simultaneously, the second end of described the first resistance is connected with the positive pole of described the second diode and the first end of described potentiometer simultaneously, the sliding end while of described potentiometer and the second end of described three terminal regulator, the second end of described potentiometer is connected with the second end of described the second resistance, the 3rd end while of described three terminal regulator and the first end of described the second resistance, the first end of described the 4th electric capacity, the first end of described the 5th electric capacity is connected with described the first voltage output end.
2. a kind of voltage-stabiliser tube power supply that is applied to router according to claim 1, is characterized in that: the first winding of described transformer, the second winding, the 3rd winding share an iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651547.9U CN203491907U (en) | 2013-10-22 | 2013-10-22 | Voltage-regulator tube power supply applied to router |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651547.9U CN203491907U (en) | 2013-10-22 | 2013-10-22 | Voltage-regulator tube power supply applied to router |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491907U true CN203491907U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651547.9U Expired - Fee Related CN203491907U (en) | 2013-10-22 | 2013-10-22 | Voltage-regulator tube power supply applied to router |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506034A (en) * | 2014-09-26 | 2015-04-08 | 武汉钢铁(集团)公司 | Continuous adjustable DC stabilized power supply circuit with 0V minimum output voltage based on three terminal regulator |
-
2013
- 2013-10-22 CN CN201320651547.9U patent/CN203491907U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506034A (en) * | 2014-09-26 | 2015-04-08 | 武汉钢铁(集团)公司 | Continuous adjustable DC stabilized power supply circuit with 0V minimum output voltage based on three terminal regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20141022 |
|
| EXPY | Termination of patent right or utility model |