CN203747648U - Power supply circuit for astronomical CCD camera digital control system - Google Patents
Power supply circuit for astronomical CCD camera digital control system Download PDFInfo
- Publication number
- CN203747648U CN203747648U CN201420019018.1U CN201420019018U CN203747648U CN 203747648 U CN203747648 U CN 203747648U CN 201420019018 U CN201420019018 U CN 201420019018U CN 203747648 U CN203747648 U CN 203747648U
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- China
- Prior art keywords
- power supply
- circuit
- ccd camera
- control system
- astronomical
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- 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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- 230000001681 protective effect Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The utility model relates to a power supply circuit for an astronomical CCD camera digital control system. The power supply circuit comprises a system power supply socket, a single board power supply socket, a protection circuit, an input filter circuit, an output terminal I, a three-end voltage stabilizer, a capacitance network, an output terminal II and an indicating circuit, wherein an external power source I and an external power source II are connected with the input filter circuit through the protection circuit, the input filter circuit is respectively connected with the output end I and an input end of the three-end voltage stabilizer, the three-end voltage stabilizer is connected with the output end II and the indicating circuit through the capacitance network, the external power source I supplies power for the whole CCD camera through the power supply socket, and the external power source II supplies power for a sub system of the digital control system of the CCD camera through the single board power supply socket. The power supply circuit employs alternative external power supply circuits and can conveniently and independently debug the digital control system of the CCD camera, the whole circuit is simple and practical, and the camera circuit is convenient to test and debug.
Description
Technical field
The utility model relates to a kind of astronomical power supply circuits with CCD camera numerical control system, especially relates to a kind of power supply of CCD camera system and subsystem power circuit of power supply separately thereof that can be used for astronomical observation.
Background technology
CCD camera system is a complication system using ccd image sensor as core, make it normally work, and needs a stable power supply that voltage is provided.With regard to its circuit, power circuit is the prerequisite of whole camera system and subsystem thereof.The different designs of camera power supply circuit directly affects the difficulty of debugging.For this reason, the design of power-supplying circuit, just taking Three-end voltage stabilizer as core, adopts some special technology and methods, to ensure to facilitate test and the debugging of system.Meanwhile, the unsteadiness of supply voltage can affect the unstable of whole system, therefore, also should reduce the ripple of output voltage in the process of circuit design and making as far as possible.Circuit adopts the mode of multiple-stage filtering to carry out filtering to input and output voltage, has less ripple with the voltage that ensures last output, reduces the impact on subsequent conditioning circuit.In sum, be in the process of circuit design and making, reduce the debugging difficulty of power circuit on system and the impact on CCD device performance as far as possible.
The quality of power-supplying circuit, directly affects the performance of whole CCD imaging system, and it is a part very important in whole camera circuitry.The power-supplying circuit of different cameral is not quite similar, even for identical CCD device, along with the renewal of modern semiconductor products and the development of electronic technology, its power circuit also can constantly have some new development and innovations in the technical scheme realizing.
Summary of the invention
Problem to be solved in the utility model is: a kind of astronomical power supply circuits with CCD camera numerical control system are provided, this power-supplying circuit uses the externally fed circuit of alternative, can debug separately easily the numerical control system of CCD camera, whole circuit is simple and practical, and facilitates test and the debugging of camera circuitry.
Technical solutions of the utility model are: a kind of astronomical power supply circuits with CCD camera numerical control system, comprise system power supply socket 1, veneer power supply base 2, protective circuit 3, input filter circuit 4, output I 5, three terminal regulator 6, capacitance network 7, output II 8, indicating circuit 9, described external power source I is connected with system power supply socket 1, external power source II is connected with veneer power supply base 2, external power source I is connected with input filter circuit 4 by protective circuit 3 with external power source II, input filter circuit 4 is connected with the input of three terminal regulator 6 with output I 5 respectively, three terminal regulator 6 by capacitance network 7 respectively with output II 8, indicating circuit 9 is connected, external power source I is whole CCD camera power supply by system power supply socket 1, external power source II is the numerical control system subsystem power supply of CCD camera by veneer power supply base power supply 2.
Described system power supply socket 1 is biserial contact pin, and veneer power supply base 2 is DC-024.
Described protective circuit 3 is SM340A.
Described input filter circuit 4 is that the magnetic bead that is 2773019447 by electric capacity and model is formed by connecting.
Described three terminal regulator 6 is LM1085IS, and capacitance network 7 is made up of multiple capacitors.
The current-limiting resistance that described indicating circuit 9 comprises light-emitting diode and connects with light-emitting diode.
Operation principle of the present utility model is: the input of this circuit, from external voltage source, is first selected a gang socket, i.e. system power supply socket 1 and veneer power supply base 2.When external power source I connecting system power supply base 1, can whole camera circuitry be tested and be debugged, and on external power source II access veneer power supply base 2 time, can only the digital control subsystem of camera circuitry be tested and be debugged.Be connected diode SM340A by system power supply socket 1 with after veneer power supply base 2, as the protective circuit 3 of input voltage, to prevent that electric power polarity from connecing anti-caused fault.For example, in the time of the positive-negative polarity reversal connection of input voltage, if this diode SM340A not, the supply voltage of reversal connection directly joins circuit and importation, will cause the damage of polar capacitor and other circuit elements device to polar sensitive; Designed after this diode, this pipe is in cut-off state, and effective input of power circuit is 0, and output is also 0, and the worst result is that Circuits System just can not be worked, but circuit elements device can not damage.
External power supply voltage after diode SM340A, the input filter circuit 4 that the magnetic bead that to enter by multiple electric capacity and model be 2773019447 forms and export one with the essentially identical voltage of supply voltage of outside access, then enter three terminal regulator 6.The model of three terminal regulator 6 is LM1085IS, has the concrete device of the kinds such as fixing output 3.3V, 5V, 12V or output voltage be adjustable available.In Fig. 2, that select is LM1085IS-3.3, the voltage that it is 3.3V by the voltage transitions of 5V.3.3V after conversion enters the capacitance network 7 of rear one-level, carries out output filtering.For whether convenient observation power circuit is normal, use the indicator light of light-emitting diode as the normal output of numerical control system power supply.For making light-emitting diode luminosity in the time that power supply normal voltage (3.3V) is exported suitable, the current-limiting resistance R36 that this light-emitting diode serial connection is 470 ohm.Capacitor C 117, as high-frequency bypass capacitor, is for entrained high frequency clutter in 6 outputs of filtering three terminal regulator.
In Fig. 2, except socket, other all should select the components and parts of Surface Mount encapsulation.Electric source filter circuit is essential, and polar capacitor is selected tantalum electric capacity, and the parameter of magnetic bead and electric capacity should be determined according to the operating frequency of circuit.
The beneficial effects of the utility model are: these power supply circuits use two-way external power source to power separately, can debug separately easily the numerical control system of CCD camera, and whole circuit is simple and practical, and facilitates test and the debugging of camera circuitry.
Brief description of the drawings
Fig. 1 is the utility model circuit function block diagram;
Fig. 2 is the utility model power supply circuit.
In Fig. 1, each label is: 1-system power supply socket, 2-veneer power supply base, 3-protective circuit, 4-input filter circuit, 5-voltage output end I, 6-three terminal regulator, 7-capacitance network, 8-voltage output end II, 9-indicating circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1-2, astronomical power supply circuits with CCD camera numerical control system, comprise system power supply socket 1, veneer power supply base 2, protective circuit 3, input filter circuit 4, output I 5, three terminal regulator 6, capacitance network 7, output II 8, indicating circuit 9; Described external power source I is connected with system power supply socket 1; external power source II is connected with veneer power supply base 2; external power source I is connected with input filter circuit 4 by protective circuit 3 with external power source II; input filter circuit 4 is connected with the input of three terminal regulator 6 with output I 5 respectively, and three terminal regulator 6 is connected with output II 8, indicating circuit 9 respectively by capacitance network 7.
Embodiment 2: as shown in Figure 1-2, astronomical power supply circuits with CCD camera numerical control system, comprise system power supply socket 1, veneer power supply base 2, protective circuit 3, input filter circuit 4, output I 5, three terminal regulator 6, capacitance network 7, output II 8, indicating circuit 9; Described external power source I is connected with system power supply socket 1; external power source II is connected with veneer power supply base 2; external power source I is connected with input filter circuit 4 by protective circuit 3 with external power source II; input filter circuit 4 is connected with the input of three terminal regulator 6 with output I 5 respectively, and three terminal regulator 6 is connected with output II 8, indicating circuit 9 respectively by capacitance network 7.
Described system power supply socket 1 is biserial contact pin, and veneer power supply base 2 is DC-024.
Described protective circuit 3 is SM340A.
Described input filter circuit 4 is that the magnetic bead that is 2773019447 by electric capacity and model is formed by connecting.
Described three terminal regulator 6 is LM1085IS, and capacitance network 7 is made up of multiple capacitors.
The current-limiting resistance that described indicating circuit 9 comprises light-emitting diode and connects with light-emitting diode.
By reference to the accompanying drawings specific embodiment of the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (6)
1. astronomical power supply circuits with CCD camera numerical control system, is characterized in that: comprise system power supply socket (1), veneer power supply base (2), protective circuit (3), input filter circuit (4), output I (5), three terminal regulator (6), capacitance network (7), output II (8), indicating circuit (9); External power source I is connected with system power supply socket (1); external power source II is connected with veneer power supply base (2); external power source I is connected with input filter circuit (4) by protective circuit (3) with external power source II; input filter circuit (4) is connected with the input of three terminal regulator (6) with output I (5) respectively, and three terminal regulator (6) is connected with output II (8), indicating circuit (9) respectively by capacitance network (7).
2. the astronomical power supply circuits with CCD camera numerical control system according to claim 1, is characterized in that: described system power supply socket (1) is biserial contact pin, and veneer power supply base (2) is DC-024.
3. the astronomical power supply circuits with CCD camera numerical control system according to claim 1, is characterized in that: described protective circuit (3) is SM340A.
4. the astronomical power supply circuits with CCD camera numerical control system according to claim 1, is characterized in that: described input filter circuit (4) is that the magnetic bead that is 2773019447 by electric capacity and model is formed by connecting.
5. the astronomical power supply circuits with CCD camera numerical control system according to claim 1, is characterized in that: described three terminal regulator (6) is LM1085IS, and capacitance network (7) is made up of multiple capacitors.
6. the astronomical power supply circuits with CCD camera numerical control system according to claim 1, is characterized in that: the current-limiting resistance that described indicating circuit (9) comprises light-emitting diode and connects with light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019018.1U CN203747648U (en) | 2014-01-13 | 2014-01-13 | Power supply circuit for astronomical CCD camera digital control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019018.1U CN203747648U (en) | 2014-01-13 | 2014-01-13 | Power supply circuit for astronomical CCD camera digital control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747648U true CN203747648U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420019018.1U Expired - Fee Related CN203747648U (en) | 2014-01-13 | 2014-01-13 | Power supply circuit for astronomical CCD camera digital control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607683A (en) * | 2016-01-29 | 2016-05-25 | 中国科学院长春光学精密机械与物理研究所 | Implementation system of low-voltage reference source |
-
2014
- 2014-01-13 CN CN201420019018.1U patent/CN203747648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607683A (en) * | 2016-01-29 | 2016-05-25 | 中国科学院长春光学精密机械与物理研究所 | Implementation system of low-voltage reference source |
| CN105607683B (en) * | 2016-01-29 | 2017-06-09 | 中国科学院长春光学精密机械与物理研究所 | A kind of low pressure reference source realizes system |
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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: 20140730 Termination date: 20150113 |
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| EXPY | Termination of patent right or utility model |