CN103381086A - Power supply circuit of endoscope - Google Patents
Power supply circuit of endoscope Download PDFInfo
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- CN103381086A CN103381086A CN2013103122580A CN201310312258A CN103381086A CN 103381086 A CN103381086 A CN 103381086A CN 2013103122580 A CN2013103122580 A CN 2013103122580A CN 201310312258 A CN201310312258 A CN 201310312258A CN 103381086 A CN103381086 A CN 103381086A
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Abstract
The invention provides a power supply circuit of an endoscope. The power supply circuit comprises an EMC (Electro Magnetic Compatibility) unit, a PFC (Positive Feedback Circuit) unit and an LLC (logical Link Control) unit, which are connected in series, and further comprises a DC-DC (Direct Current) unit, an energy storage unit and a logic control unit, wherein the DC-DC unit is connected in series with the LLC unit and used for converting different direct voltages and transmitting the direct voltages into the endoscope body, so as to supply power to the endoscope; the logic control unit and the DC-DC unit are connected through the energy storage unit; the energy storage unit is used for supplying direct current power supply to the DC-DC unit according to the control of the logic control unit; the logic control unit is respectively connected with the DC-DC unit and the energy storage unit and used for detecting whether the LLC unit outputs voltage or not, if the LLC unit outputs voltage, the logic control unit is used for keeping the LLC unit to supply power to the DC-DC unit; otherwise, the logic control unit is used for controlling the energy storage unit to supply power to the DC-DC unit. The power supply circuit and the endoscope body are assembled integrally, the structure is compact, the size is small, the harmonic interference is reduced further, and the performance of the endoscope is improved.
Description
Technical field
The present invention relates to the medical ultrasound technical field, relate in particular to a kind of power supply circuits of endoscope.
Background technology
Endoscopic technique is widely applied at medical field, can enter gastric or enter in body through other natural ducts by the oral cavity.Utilize endoscope can see very intuitively pathological changes, and X ray, ultrasonic product etc. can not show its details, endoscope is very helpful to doctor's auxiliary diagnosis, can observe the ulcer of gastric or tumor etc. by its doctor, makes accordingly best therapeutic scheme.
The current endoscope technology has possessed gem-pure high quality graphic, each large medical giant of the world has used a large amount of technical forces endoscopic imaging is technical, make endoscopic imaging effect and function more and more perfect, played indelible effect in the struggle of the mankind and disease.
But in current endoscopic technique, because all technical forces all focus on light source and imaging technique, and the other sides such as power supply are neglected in consideration, cause current endoscope in use to have a serious problem: when having a power failure suddenly, endoscopic imaging becomes as dark as a stack of black cats, and the doctor can't know the state of camera lens in human body, also inspection can't be gone on, the memory that can only depend on the doctor with feeling to adjust the position, pulls out endoscope lens in body; Can thisly operate, very large with doctor's memory and feel relation, even can produce illusion, make camera lens just pull out in body when not adjusting the rectilinearity state, intestinal is caused scratch or tear.
Suppose that endoscope has a power failure suddenly when checking the gastric ulcer pathological changes, at this moment camera lens checking ulcer surface, is in case of bending, when pulling out camera lens from esophagus, because esophagus is thinner, and a bending is arranged between endoscopic catheters and camera lens, the injury to esophagus can be caused, even esophagus can be torn when serious.
Although some endoscope has been equipped with the inverters such as UPS at present, but because power supply separates with endoscope, separate, its operating frequency can't be interactive mutually with the product main body, often reduce the performance of endoscope because of humorous wave interference, definite says, these simply coordinate, to sacrifice endoscope's performance as cost.
In addition, very low to the service efficiency of electric energy if be equipped with inverter because endoscope illuminator power consumption is huge, cause the waste of energy resource.Because having increased energy loss, make the energy-storage battery volume larger, cause the huge of integral device with heavy.
Summary of the invention
Embodiment of the present invention technical problem to be solved is that how in the situation that outage can normally use endoscope, and the volume of emergency circuit is little, capacity usage ratio is high.
For solving the problems of the technologies described above, the invention provides a kind of power supply circuits of endoscope, comprise successively EMC unit, PFC unit and the LLC unit of series connection, described power supply circuits also comprise: DC-DC unit, energy-storage units and logic control element;
Described DC-DC unit after being serially connected in the LLC unit, being changed out various DC voltages and is sent into endoscope main body and be its power supply;
Described energy-storage units is connected between logic control element and DC-DC unit, is used for the control according to logic control element, for the DC-DC unit provides dc source;
Described logic control element is connected with DC-DC unit, energy-storage units respectively, for detection of the LLC unit, whether Voltage-output is arranged, and is, keeps the LLC unit to DC-DC unit power supply; Otherwise, control energy-storage units to DC-DC unit power supply.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
1, the assembling of described power supply circuits and endoscope main body is one, and compact conformation, volume are little;
2, logic control element can be controlled the synchronizing signal of DC-DC unit and endoscope main body simultaneously
Equate, further harmonic reduction disturbs and has improved the performance of endoscope.
Description of drawings
Fig. 1 is the structure chart of the power supply circuits of first embodiment of the invention;
Fig. 2 is the structure chart of the power supply circuits of second embodiment of the invention;
Fig. 3 is the structure chart of the power supply circuits of third embodiment of the invention.
The specific embodiment
Below in conjunction with the Figure of description in the present invention, the technical scheme in invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
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Embodiment one
See also Fig. 1, the embodiment of the present invention provides a kind of power supply circuits of endoscope, comprise successively EMC unit 101, PFC unit 102 and the LLC unit 103 of series connection, described power supply circuits also comprise: DC-DC unit 104, energy-storage units 105 and logic control element 106;
Described DC-DC unit 104 after being serially connected in LLC unit 103, being changed out various DC voltages and is sent into endoscope main body and be its power supply;
Described energy-storage units 105 is connected between logic control element 106 and DC-DC unit 104, is used for the control according to logic control element 106, for DC-DC unit 104 provides dc source;
Described logic control element 106 is connected with DC-DC unit 104, energy-storage units 105 respectively, for detection of LLC unit 103, whether Voltage-output is arranged, and is, keeps LLC unit 103 to DC-DC unit 104 power supplies; Otherwise, control energy-storage units 105 to DC-DC unit 104 power supplies.
In the present embodiment,
The interference such as EMC(Electro Magnetic Compatibility, the electromagnetic compatibility) conduction that produces of 101 pairs of unit input power, radiation are processed, and make the conduction of product and radiation all reach medical standard.
PFC unit 102(Power Factor Correction, PFC), be that active power factor is corrected level, reduce harmonic wave to the impact of electrical network, the overall power factor is reached more than 0.93.
LLC unit 103(Line Level Control), adopt up-to-date Switching Power Supply LLC technology, power work is opened and closed condition in no-voltage, and reduce disturbance reduces the wastage.
DC-DC unit 104, the electric energy that the electric energy that LLC unit 103 is provided and energy-storage units 105 provide converts stable output voltage and electric current to.Because the output voltage of energy-storage units 105 is a unstable voltage that reduces to reduce with electric weight; and the ripple content in the voltage of LLC unit 103 outputs is large; the effect of DC-DC unit 5 is to purify this two-part power supply, and stable output, increases simultaneously the diode protection function.
Energy-storage units 105, when normal the use, the energy-storage units automatic storage electric energy, to provide necessary electric energy to discharge when emergent, energy-storage units 105 is not limited to any electrical power storage form, and lithium battery, super capacitor, Ni-MH battery and other energy storage form all can be used as energy-storage units of the present invention.
The present invention is divided into the two large divisions with the conventional medical power supply, and first comprises EMC unit 101, PFC unit 102 and LLC unit 103; Second portion comprises DC-DC unit 104, gets node between 103 to DC-DC unit 104, LLC unit, increases energy-storage units 105 at this.Energy-storage units 105 is directly controlled by logic control element 106, forms the power supply seamless switchings with LLC unit 103.Between power supply, endoscope main body, communication mutually, form an indivisible integral body, and circuit structure is compact, volume is little.
Embodiment two
See also Fig. 2, the logic control element 106 in the embodiment of the present invention specifically comprises:
Whether LLC cell voltage detection sub-module 1061 has Voltage-output for detection of the LLC unit, is, keeps the LLC unit to DC-DC unit power supply; Otherwise, start energy-storage units voltage detecting submodule;
Energy-storage units voltage detecting submodule 1062, whether the voltage for detection of the energy-storage units storage reaches capacity, be, control energy-storage units to DC-DC unit power supply, otherwise, when the voltage of energy-storage units storage during more than or equal to threshold voltage, control energy-storage units and power and send alarm signal to the DC-DC unit, during less than threshold voltage, send alarm signal when the voltage of energy-storage units storage.
Need to prove, the voltage of energy-storage units storage reaches capacity and refers to be full of the situation of electricity, such as voltage is 19v, so, logic control element is controlled energy-storage units to DC-DC unit power supply, otherwise, when the voltage of energy-storage units storage more than or equal to threshold voltage, when being 12v, control energy-storage units and power to the DC-DC unit and send alarm signal, the voltage of storing when energy-storage units is less than threshold voltage, during as 12v, send alarm signal, this moment, energy-storage units can't be given DC-DC unit power supply.
In embodiments of the present invention, logic control element 106 is in the LLC unit during 103 outage, and the input power of DC-DC unit 104 103 is switched to energy-storage units 105 from the LLC unit.
Preferably, the logic control element in the embodiment of the present invention 106 also comprises:
Management by synchronization submodule 1063, be used for to receive the first synchronizing signal that DC-DC unit 104 sends, receive the second synchronizing signal that endoscope main body is sent, and calculate error between the first synchronizing signal and the second synchronizing signal, according to described error amount, adjust the first synchronizing signal, its value with the second synchronizing signal is equated.
In prior art, although some endoscope has been equipped with the inverters such as UPS, but because power supply separates with endoscope, separate, its operating frequency can't be interactive mutually with the product main body, causes reducing the performance of endoscope because of humorous wave interference, and definite says, these simply coordinate, to sacrifice endoscope's performance as cost.
The major function of management by synchronization submodule is, the endoscope main body service frequency signal is processed, and the signal of the operating frequency of DC-DC unit 104 is controlled in output, make DC-DC unit 104 always work in synchronous regime with the operating frequency of endoscope main body, greatly reduce the hidden danger that the interference that brings because of frequency conflicts and dysfunction cause.
The operating frequency of DC-DC unit 104 is directly synchronizeed with the endoscope dominant frequency, has eliminated the interference of power supply endoscope main body fully.
Logic control element can be controlled the DC-DC unit and equate with the synchronizing signal of endoscope main body, and further harmonic reduction disturbs and improved the performance of endoscope.
Embodiment three
See also Fig. 3, described power supply circuits also comprise: operating unit 107, and the second synchronizing signal that is used for endoscope main body is sent passes to management by synchronization submodule 1063; And be controlled by energy-storage units voltage detecting submodule 1061, indicate the voltage of energy-storage units 105 storages whether to reach capacity by display lamp.
In embodiments of the present invention, operating unit 107 is parts that engineering staff's endoscope main body executable operations is controlled, comprise guidance panel, and display lamp and alarm are housed on panel, can directly find out the state of charge of energy-storage units by the demonstration of display lamp, for example: when the power supply of LLC unit, as the energy-storage units voltage saturation, during for 19v, display lamp is green, and is as unsaturated in energy-storage units voltage, during less than 19v, display lamp is yellow, and startup Charge Management program is the energy-storage units charging; When the outage of LLC unit, when adopting the energy-storage units power supply, as the energy-storage units voltage saturation, during for 19v, display lamp be green, and is as unsaturated in energy-storage units voltage, and during more than or equal to threshold voltage 12v, display lamp is yellow, and sends alarm signal; When the outage of LLC unit, and the voltage of energy-storage units is during less than threshold voltage 12v, and display lamp be yellow, and energy-storage units can't be that the DC-DC unit powers.
Need to prove, described DC-DC unit 104 is BUCK or BOOST structure.Preferably, the present invention adopts the BUCK structure, because the BUCK structure is higher than the voltage transitions efficient of BOOST structure, power consumption is little.
Need to prove, described logic control element 106 is completed by a powerful intelligent MCU.
The below illustrates the magnitude of voltage that each cell translation goes out:
EMC unit 101: output AC voltage is between 90-240v;
PFC unit 102: output dc voltage 400v;
LLC unit 103: output dc voltage 19v;
DC-DC unit 104: the voltage of a plurality of level of output comprises: 5v, 3.3v, 1.8v, 12v etc.;
Energy-storage units 105: output dc voltage 12-19v;
Logic control element 106: output dc voltage 5v;
Operating unit 107: output dc voltage 5v.
The present invention compares with the conventional endoscope power supply, and following advantage is arranged:
1, solved the interference of stand-by power supply (DC-DC unit) with endoscope main body;
2, dwindled overall volume, the endoscope of Hospitals at Present is because fear that unexpected outage, nearly all doctor are all that endoscope has been equipped with ups power, and both volumes are too fat to move, take up room;
3, reduced radiation interference because do not need high-voltage inverted, so when energy-storage units is worked, externally without any radiation generation;
4, reduced cost, holistic cost of the present invention adds the cost of UPS less than current main frame;
5, because not needing large pressure reduction inversion work, efficient improves greatly;
6, hommization operation has warning function, reminds the doctor who concentrates one's energy to note the control operation time after grid cut-off.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method and can control relevant hardware by the hardware programming program and complete, described hardware programming program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read only memory, disk or CD etc.
Above power supply circuits to a kind of endoscope provided by the present invention are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. the power supply circuits of an endoscope, comprise series connection successively EMC unit, PFC unit and
The LLC unit is characterized in that, described power supply circuits also comprise: DC-DC unit, energy-storage units and logic control element;
Described DC-DC unit after being serially connected in the LLC unit, being changed out various DC voltages and is sent into endoscope main body and be its power supply;
Described energy-storage units is connected between logic control element and DC-DC unit, is used for the control according to logic control element, for the DC-DC unit provides dc source;
Described logic control element is connected with DC-DC unit, energy-storage units respectively, for detection of the LLC unit, whether Voltage-output is arranged, and is, keeps the LLC unit to DC-DC unit power supply; Otherwise, control energy-storage units to DC-DC unit power supply.
2. power supply circuits as claimed in claim 1, is characterized in that, described logic control element
Specifically comprise LLC cell voltage detection sub-module, energy-storage units voltage detecting submodule:
Whether described LLC cell voltage detection sub-module has Voltage-output for detection of the LLC unit, is, keeps the LLC unit to DC-DC unit power supply; Otherwise, start described energy-storage units voltage detecting submodule;
Described energy-storage units voltage detecting submodule, whether the voltage for detection of the energy-storage units storage reaches capacity, be, control energy-storage units to DC-DC unit power supply, otherwise, when the voltage of energy-storage units storage during more than or equal to threshold voltage, control energy-storage units and power and send alarm signal to the DC-DC unit, during less than threshold voltage, send alarm signal when the voltage of energy-storage units storage.
3. power supply circuits as claimed in claim 1 or 2, is characterized in that, described logic control
The unit also comprises:
The management by synchronization submodule, be used for to receive the first synchronizing signal that the DC-DC unit sends, receive the second synchronizing signal that endoscope main body is sent, and calculate error between the first synchronizing signal and the second synchronizing signal, according to described error amount, adjust the first synchronizing signal, its value with the second synchronizing signal is equated.
4. power supply circuits as claimed in claim 3, is characterized in that, described power supply circuits also wrap
Draw together: operating unit, whether the second synchronizing signal that is used for endoscope main body is sent passes to the management by synchronization submodule, and is controlled by energy-storage units voltage detecting submodule, indicate the voltage of energy-storage units storage to reach capacity by display lamp.
5. power supply circuits as claimed in claim 1, is characterized in that, described DC-DC unit is
BUCK or BOOST structure.
6. power supply circuits as claimed in claim 1, is characterized in that, described logic control element is a MCU.
7. power supply circuits as claimed in claim 1, is characterized in that, described energy-storage units is lithium
Battery, super capacitor, Ni-MH battery.
8. power supply circuits as claimed in claim 1, is characterized in that, described LLC unit defeated
Enter to be 400v, be output as 19v.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312258.0A CN103381086B (en) | 2013-07-24 | 2013-07-24 | Power supply circuit of endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312258.0A CN103381086B (en) | 2013-07-24 | 2013-07-24 | Power supply circuit of endoscope |
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| Publication Number | Publication Date |
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| CN103381086A true CN103381086A (en) | 2013-11-06 |
| CN103381086B CN103381086B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310312258.0A Active CN103381086B (en) | 2013-07-24 | 2013-07-24 | Power supply circuit of endoscope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109222853A (en) * | 2018-11-19 | 2019-01-18 | 苏州新光维医疗科技有限公司 | Endoscope and endoscope working method |
| CN114224268A (en) * | 2022-02-24 | 2022-03-25 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
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| JP2002165388A (en) * | 2000-11-21 | 2002-06-07 | Asahi Optical Co Ltd | Light source apparatus for endoscope |
| CN1942133A (en) * | 2004-04-08 | 2007-04-04 | 奥林巴斯株式会社 | Endoscope |
| CN101471573A (en) * | 2007-12-29 | 2009-07-01 | 上海浦济光学技术有限公司 | Voltage-stabilizing working power supply |
| CN201360370Y (en) * | 2009-03-06 | 2009-12-09 | 四川九洲铭伟半导体照明有限公司 | LED illuminate power supply |
| CN102769335A (en) * | 2012-07-16 | 2012-11-07 | 张太平 | Dual-port input switch power supply |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002165388A (en) * | 2000-11-21 | 2002-06-07 | Asahi Optical Co Ltd | Light source apparatus for endoscope |
| CN1942133A (en) * | 2004-04-08 | 2007-04-04 | 奥林巴斯株式会社 | Endoscope |
| CN101471573A (en) * | 2007-12-29 | 2009-07-01 | 上海浦济光学技术有限公司 | Voltage-stabilizing working power supply |
| CN201360370Y (en) * | 2009-03-06 | 2009-12-09 | 四川九洲铭伟半导体照明有限公司 | LED illuminate power supply |
| CN102769335A (en) * | 2012-07-16 | 2012-11-07 | 张太平 | Dual-port input switch power supply |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109222853A (en) * | 2018-11-19 | 2019-01-18 | 苏州新光维医疗科技有限公司 | Endoscope and endoscope working method |
| CN114224268A (en) * | 2022-02-24 | 2022-03-25 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
| CN114224268B (en) * | 2022-02-24 | 2022-05-03 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
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| Publication number | Publication date |
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| CN103381086B (en) | 2014-12-10 |
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Address after: 518051 Guangdong city of Shenzhen province Nanshan District Yuquanlu Road Yizhe building 4 floor Patentee after: Biologic medical Science and Technology Co., Ltd. is opened in Shenzhen Address before: 518051 Guangdong city of Shenzhen province Nanshan District Yuquanlu Road Yizhe building 4 floor Patentee before: Sonoscape Inc. |
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Address after: 518057 Shenzhen Nanshan District, Guangdong Province Patentee after: Biologic medical Science and Technology Co., Ltd. is opened in Shenzhen Address before: 518051 Fourth Floor, Yizhe Building, Yuquan Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Biologic medical Science and Technology Co., Ltd. is opened in Shenzhen |