CN204652252U - A kind of two-way digital simulation power circuit - Google Patents
A kind of two-way digital simulation power circuit Download PDFInfo
- Publication number
- CN204652252U CN204652252U CN201520403809.9U CN201520403809U CN204652252U CN 204652252 U CN204652252 U CN 204652252U CN 201520403809 U CN201520403809 U CN 201520403809U CN 204652252 U CN204652252 U CN 204652252U
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- rectifier bridge
- resistance
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Abstract
The utility model discloses a kind of two-way digital simulation power circuit, comprise transformer W, rectifier bridge T, chip IC 1 and resistance R3, the two ends of the primary side N1 of described transformer W connect the two ends of 220V line voltage respectively, the two ends of the primary side N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, and the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1.The utility model power circuit adopts ADP303 voltage changer as power conversion chip, its can input voltage range wide, effective reduction city electro-mechanical wave is on the impact exported, can the simultaneously digital voltage of stable output and analog voltage, and adopt cross-over connection resistor to be connected together on the ground of two kinds of power supplys, effective reduction interference, therefore has that structure is simple, the advantage of stable output, strong interference immunity.
Description
Technical field
The utility model relates to a kind of power circuit, specifically a kind of two-way digital simulation power circuit.
Background technology
Digital movie and analog power are all the common power types in electronic power field; often can use digital power and analog power in some integrated circuits simultaneously; because two kinds of power supply natures differences; therefore independently power module is needed to change in most cases; the power supply of independently supplying two kinds of power supplys can also there is the problem of mutual serious interference in minority; not only reduce power supply quality, and increase use cost.
Utility model content
The purpose of this utility model is to provide a kind of two-way digital simulation power circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of two-way digital simulation power circuit, comprises transformer W, rectifier bridge T, chip IC 1 and resistance R3, the two ends of the primary side N1 of described transformer W connect the two ends of 220V line voltage respectively, the two ends of the primary side N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, and the pin 2 of chip IC 1 connects the other end of electric capacity C1, electric capacity C3, electric capacity C4, electric capacity C5, resistance R1, resistance R3, the other end of resistance R3, the port 4 of rectifier bridge T and the pin 4 of chip IC 2 also ground connection, the pin 3 of chip IC 1 connects the pin 5 of chip IC 2, the pin 7 of chip IC 2 and the pin 8 of chip IC 2, the pin 2 of chip IC 2 connects electric capacity C2, the other end of electric capacity C3, the other end of electric capacity C4, the other end of resistance R1, inductance L 1 and output voltage V1, the other end of electric capacity C2 connects the pin 3 of chip IC 1, and the other end of the other end contact resistance R2 of inductance L 1, resistance R2 connects the other end and the output voltage V2 of electric capacity C5.
As preferred version of the present utility model: the model of described chip IC 1 is LM7812, the model of chip IC 2 is ADP3303.
As preferred version of the present utility model: described resistance R3 is 0 Ω cross-over connection resistor.
Compared with prior art, the beneficial effects of the utility model are: the utility model power circuit adopts ADP303 voltage changer as power conversion chip, its can input voltage range wide, effective reduction city electro-mechanical wave is on the impact exported, can the simultaneously digital voltage of stable output and analog voltage, and adopt cross-over connection resistor to be connected together on the ground of two kinds of power supplys, effectively reduce interference, therefore have that structure is simple, the advantage of stable output, strong interference immunity.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of two-way digital simulation power circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of two-way digital simulation power circuit, comprises transformer W, rectifier bridge T, chip IC 1 and resistance R3, the two ends of the primary side N1 of described transformer W connect the two ends of 220V line voltage respectively, the two ends of the primary side N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, and the pin 2 of chip IC 1 connects the other end of electric capacity C1, electric capacity C3, electric capacity C4, electric capacity C5, resistance R1, resistance R3, the other end of resistance R3, the port 4 of rectifier bridge T and the pin 4 of chip IC 2 also ground connection, the pin 3 of chip IC 1 connects the pin 5 of chip IC 2, the pin 7 of chip IC 2 and the pin 8 of chip IC 2, the pin 2 of chip IC 2 connects electric capacity C2, the other end of electric capacity C3, the other end of electric capacity C4, the other end of resistance R1, inductance L 1 and output voltage V1, the other end of electric capacity C2 connects the pin 3 of chip IC 1, and the other end of the other end contact resistance R2 of inductance L 1, resistance R2 connects the other end and the output voltage V2 of electric capacity C5.
The model of chip IC 1 is LM7812, and the model of chip IC 2 is ADP3303.Resistance R3 is 0 Ω cross-over connection resistor.
Operation principle of the present utility model is: 220V alternating current is through transformer W step-down, rectifier bridge T rectification, become 12V direct current after electric capacity C1 filtering and three terminal regulator IC1 voltage stabilizing to power to voltage changer IC2, it is a high accuracy, the linear rectifier of 200mA low drifting, its operating voltage range is 3.2 ~ 12V, effectively can solve line voltage instability and cause the problem that system cannot normally work, the voltage that chip IC 2 exports is respectively analog power V2 and digital power through the resistance R2 of inductance L 1 and 1.8 Ω of 100mH and powers V1, greatly can reduce the interference of power supply to digital device like this.Analog voltage V2 in analog with digitally the connecting together after the resistance R3 of 0 Ω carries out filtering of digital voltage V1, effectively can reduce interference between the two.
Claims (3)
1. a two-way digital simulation power circuit, comprises transformer W, rectifier bridge T, chip IC 1 and resistance R3, it is characterized in that, the two ends of the primary side N1 of described transformer W connect the two ends of 220V line voltage respectively, the two ends of the primary side N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, the pin 2 of chip IC 1 connects the other end of electric capacity C1, electric capacity C3, electric capacity C4, electric capacity C5, resistance R1, resistance R3, the other end of resistance R3, the port 4 of rectifier bridge T and the pin 4 of chip IC 2 also ground connection, the pin 3 of chip IC 1 connects the pin 5 of chip IC 2, the pin 7 of chip IC 2 and the pin 8 of chip IC 2, the pin 2 of chip IC 2 connects electric capacity C2, the other end of electric capacity C3, the other end of electric capacity C4, the other end of resistance R1, inductance L 1 and output voltage V1, the other end of electric capacity C2 connects the pin 3 of chip IC 1, the other end contact resistance R2 of inductance L 1, the other end of resistance R2 connects the other end and the output voltage V2 of electric capacity C5.
2. a kind of two-way digital simulation power circuit according to claim 1, is characterized in that, the model of described chip IC 1 is LM7812, and the model of chip IC 2 is ADP3303.
3. a kind of two-way digital simulation power circuit according to claim 1, is characterized in that, described resistance R3 is 0 Ω cross-over connection resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520403809.9U CN204652252U (en) | 2015-06-11 | 2015-06-11 | A kind of two-way digital simulation power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520403809.9U CN204652252U (en) | 2015-06-11 | 2015-06-11 | A kind of two-way digital simulation power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652252U true CN204652252U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520403809.9U Expired - Fee Related CN204652252U (en) | 2015-06-11 | 2015-06-11 | A kind of two-way digital simulation power circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204652252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054622A (en) * | 2016-05-20 | 2016-10-26 | 湖南奥科网络技术股份有限公司 | Smart home ring control system based on Internet |
-
2015
- 2015-06-11 CN CN201520403809.9U patent/CN204652252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054622A (en) * | 2016-05-20 | 2016-10-26 | 湖南奥科网络技术股份有限公司 | Smart home ring control system based on Internet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Haomin Inventor before: Tao Xu |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161129 Address after: Guangdong province Zhongshan City Yumin Road 528414 No. 68 Dongsheng town two or three Patentee after: Zhongshan top Electronic Technology Co., Ltd. Address before: 315700, Zhejiang County, Ningbo City, Xiangshan province Dan City Road Patentee before: Tao Xu |
|
| CP03 | Change of name, title or address |
Address after: 528400 two or three, 68 Yumin Road, Dongsheng Town, Zhongshan, Guangdong. Patentee after: Zhongshan Mao Polytron Technologies Inc Address before: 528414 two or three, 68 Yumin Road, Dongsheng Town, Zhongshan, Guangdong. Patentee before: Zhongshan top Electronic Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20210611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |