CN204808094U - Utilize stabilivolt generate current's electric current source - Google Patents
Utilize stabilivolt generate current's electric current source Download PDFInfo
- Publication number
- CN204808094U CN204808094U CN201520513472.7U CN201520513472U CN204808094U CN 204808094 U CN204808094 U CN 204808094U CN 201520513472 U CN201520513472 U CN 201520513472U CN 204808094 U CN204808094 U CN 204808094U
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- China
- Prior art keywords
- pipe
- collector
- base stage
- pnp pipe
- pnp
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- Expired - Fee Related
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Abstract
The utility model discloses an utilize stabilivolt generate current's electric current source. Utilize stabilivolt generate current's electric current source includes a PNP pipe, first electric capacity, the 2nd PNP pipe, the 3rd PNP pipe, fourth PNP pipe, a NPN pipe, the 2nd NPN pipe, first stabilivolt, first resistance and the 5th PNP pipe.
Description
Technical field
The utility model relates to current source, refers more particularly to the current source utilizing stabilivolt generation current.
Background technology
Devise the current source utilizing stabilivolt generation current.
Summary of the invention
The utility model aims to provide a kind of current source utilizing stabilivolt generation current.
Utilize the current source of stabilivolt generation current, comprise the first PNP pipe, the first electric capacity, the second PNP pipe, the 3rd PNP pipe, the 4th PNP pipe, a NPN pipe, the 2nd NPN pipe, the first stabilivolt, the first resistance and the 5th PNP pipe:
The base earth of described first PNP pipe, collector connects the base stage of described second PNP pipe and one end of described first electric capacity, and emitter meets supply voltage VCC;
The collector of the first PNP pipe described in one termination of described first electric capacity and the base stage of described second PNP pipe, other end ground connection;
The base stage of described second PNP pipe connects the collector of described first PNP pipe and one end of described first electric capacity, collector connects the base stage of the collector of described 3rd PNP pipe and the base stage of a described NPN pipe and collector and described 2nd NPN pipe, and emitter meets supply voltage VCC;
The base stage of described 3rd PNP pipe connects the collector of the base stage of described 4th PNP pipe and the base stage of collector and described 5th PNP pipe and described 2nd NPN pipe, collector connects the base stage of the collector of described second PNP pipe and the base stage of a described NPN pipe and collector and described 2nd NPN pipe, and emitter meets supply voltage VCC;
The base stage of described 4th PNP pipe and collector are connected together the base stage and the base stage of described 5th PNP pipe and the collector of described 2nd NPN pipe that connect described 3rd PNP pipe again, and emitter meets supply voltage VCC;
The base stage of a described NPN pipe and collector are connected together the collector and the collector of described 3rd PNP pipe and the base stage of described 2nd NPN pipe that connect described second PNP pipe again, and emitter connects the N pole of described first stabilivolt;
The base stage of described 2nd NPN pipe connects base stage and the collector of the collector of described second PNP pipe and the collector of described 3rd PNP pipe and a described NPN pipe, collector connects the base stage of the base stage of described 3rd PNP pipe and the base stage of described 4th PNP pipe and collector and described 5th PNP pipe, and emitter connects one end of described first resistance;
The P pole ground connection of described first stabilivolt, N pole connects the emitter of a described NPN pipe;
The emitter of the 2nd NPN pipe described in one termination of described first resistance, other end ground connection;
The base stage of described 5th PNP pipe connects the collector of the base stage of described 3rd PNP pipe and the base stage of described 4th PNP pipe and collector and described 2nd NPN pipe, and collector is as current output terminal IOUT, and emitter meets supply voltage VCC.
After powering on, the base earth of described first PNP pipe and conducting is charged to described first electric capacity until be charged to supply voltage VCC, voltage on described first electric capacity is be zero when charging and starting, described like this second PNP pipe conducting, electric current is had to flow through described second PNP pipe to a described NPN pipe mirror image to described 2nd NPN pipe, described 3rd PNP pipe and described 5th PNP pipe is given again by described 4th PNP pipe mirror image, described in when the voltage of described first electric capacity is charged to supply voltage VCC, the second PNP pipe is closed, and starting current stops; Owing to having current feedback from described 3rd PNP pipe to a described NPN pipe, reach balance, the now drain electrode of described 5th PNP pipe just has the outflow of bus current IOUT come by described 4th PNP pipe mirror image; Described first ohmically voltage is the voltage stabilizing value of described first stabilivolt, described first ohmically electric current equals the resistance value of voltage stabilizing value divided by described first resistance of described first stabilivolt, and described first ohmically electric current determines the current value that described 5th PNP pipe collector flows out.
Accompanying drawing explanation
Fig. 1 is the circuit diagram utilizing the current source of stabilivolt generation current of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model content is further illustrated.
Utilize the current source of stabilivolt generation current, as shown in Figure 1, the first PNP pipe 101, first electric capacity 102, second PNP pipe 103, the 3rd PNP pipe 104, the 4th PNP pipe 105, a NPN pipe 106, the 2nd NPN pipe 107, first stabilivolt 108, first resistance 109 and the 5th PNP pipe 110 is comprised:
The base earth of described first PNP pipe 101, collector connects the base stage of described second PNP pipe 103 and one end of described first electric capacity 102, and emitter meets supply voltage VCC;
The collector of the first PNP pipe 101 described in one termination of described first electric capacity 102 and the base stage of described second PNP pipe 103, other end ground connection;
The base stage of described second PNP pipe 103 connects the collector of described first PNP pipe 101 and one end of described first electric capacity 102, collector connects the base stage of the collector of described 3rd PNP pipe 104 and the base stage of a described NPN pipe 106 and collector and described 2nd NPN pipe 107, and emitter meets supply voltage VCC;
The base stage of described 3rd PNP pipe 104 connects the collector of the base stage of described 4th PNP pipe 105 and the base stage of collector and described 5th PNP pipe 110 and described 2nd NPN pipe 107, collector connects the base stage of the collector of described second PNP pipe 103 and the base stage of a described NPN pipe 106 and collector and described 2nd NPN pipe 107, and emitter meets supply voltage VCC;
The base stage of described 4th PNP pipe 105 and collector are connected together the base stage and the base stage of described 5th PNP pipe 110 and the collector of described 2nd NPN pipe 107 that connect described 3rd PNP pipe 104 again, and emitter meets supply voltage VCC;
The base stage of a described NPN pipe 106 and collector are connected together the collector and the collector of described 3rd PNP pipe 104 and the base stage of described 2nd NPN pipe 107 that connect described second PNP pipe 103 again, and emitter connects the N pole of described first stabilivolt 108;
The base stage of described 2nd NPN pipe 107 connects base stage and the collector of the collector of described second PNP pipe 103 and the collector of described 3rd PNP pipe 104 and a described NPN pipe 106, collector connects the base stage of the base stage of described 3rd PNP pipe 104 and the base stage of described 4th PNP pipe 105 and collector and described 5th PNP pipe 110, and emitter connects one end of described first resistance 109;
The P pole ground connection of described first stabilivolt 108, N pole connects the emitter of a described NPN pipe 106;
The emitter of the 2nd NPN pipe 107 described in one termination of described first resistance 109, other end ground connection;
The base stage of described 5th PNP pipe 110 connects the collector of the base stage of described 3rd PNP pipe 104 and the base stage of described 4th PNP pipe 105 and collector and described 2nd NPN pipe 107, and collector is as current output terminal IOUT, and emitter meets supply voltage VCC.
After powering on, the base earth of described first PNP pipe 101 and conducting is charged to described first electric capacity 102 until be charged to supply voltage VCC, voltage on described first electric capacity 102 is be zero when charging and starting, described like this second PNP pipe 103 conducting, electric current is had to flow through described second PNP pipe 103 to described NPN pipe 106 mirror image to described 2nd NPN pipe 107, described 3rd PNP pipe 104 and described 5th PNP pipe 109 is given again by described 4th PNP pipe 105 mirror image, described in when the voltage of described first electric capacity 102 is charged to supply voltage VCC, the second PNP pipe 103 is closed, starting current stops, owing to having current feedback from described 3rd PNP pipe 104 to a described NPN pipe 106, reach balance, the now drain electrode of described 5th PNP pipe 109 just has the outflow of bus current IOUT come by described 4th PNP pipe 105 mirror image, voltage on described first resistance 109 is the voltage stabilizing value of described first stabilivolt 108, electric current on described first resistance 109 equals the resistance value of voltage stabilizing value divided by described first resistance 109 of described first stabilivolt 108, and the electric current on described first resistance 109 determines the current value that described 5th PNP pipe 110 collector flows out.
Claims (1)
1. utilize the current source of stabilivolt generation current, it is characterized in that: comprise the first PNP pipe, the first electric capacity, the second PNP pipe, the 3rd PNP pipe, the 4th PNP pipe, a NPN pipe, the 2nd NPN pipe, the first stabilivolt, the first resistance and the 5th PNP pipe;
The base earth of described first PNP pipe, collector connects the base stage of described second PNP pipe and one end of described first electric capacity, and emitter meets supply voltage VCC;
The collector of the first PNP pipe described in one termination of described first electric capacity and the base stage of described second PNP pipe, other end ground connection;
The base stage of described second PNP pipe connects the collector of described first PNP pipe and one end of described first electric capacity, collector connects the base stage of the collector of described 3rd PNP pipe and the base stage of a described NPN pipe and collector and described 2nd NPN pipe, and emitter meets supply voltage VCC;
The base stage of described 3rd PNP pipe connects the collector of the base stage of described 4th PNP pipe and the base stage of collector and described 5th PNP pipe and described 2nd NPN pipe, collector connects the base stage of the collector of described second PNP pipe and the base stage of a described NPN pipe and collector and described 2nd NPN pipe, and emitter meets supply voltage VCC;
The base stage of described 4th PNP pipe and collector are connected together the base stage and the base stage of described 5th PNP pipe and the collector of described 2nd NPN pipe that connect described 3rd PNP pipe again, and emitter meets supply voltage VCC;
The base stage of a described NPN pipe and collector are connected together the collector and the collector of described 3rd PNP pipe and the base stage of described 2nd NPN pipe that connect described second PNP pipe again, and emitter connects the N pole of described first stabilivolt;
The base stage of described 2nd NPN pipe connects base stage and the collector of the collector of described second PNP pipe and the collector of described 3rd PNP pipe and a described NPN pipe, collector connects the base stage of the base stage of described 3rd PNP pipe and the base stage of described 4th PNP pipe and collector and described 5th PNP pipe, and emitter connects one end of described first resistance;
The P pole ground connection of described first stabilivolt, N pole connects the emitter of a described NPN pipe;
The emitter of the 2nd NPN pipe described in one termination of described first resistance, other end ground connection;
The base stage of described 5th PNP pipe connects the collector of the base stage of described 3rd PNP pipe and the base stage of described 4th PNP pipe and collector and described 2nd NPN pipe, and collector is as current output terminal IOUT, and emitter meets supply voltage VCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513472.7U CN204808094U (en) | 2015-07-13 | 2015-07-13 | Utilize stabilivolt generate current's electric current source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513472.7U CN204808094U (en) | 2015-07-13 | 2015-07-13 | Utilize stabilivolt generate current's electric current source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204808094U true CN204808094U (en) | 2015-11-25 |
Family
ID=54592883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520513472.7U Expired - Fee Related CN204808094U (en) | 2015-07-13 | 2015-07-13 | Utilize stabilivolt generate current's electric current source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204808094U (en) |
-
2015
- 2015-07-13 CN CN201520513472.7U patent/CN204808094U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |