CN204408000U - Modularization security device power-supply system - Google Patents
Modularization security device power-supply system Download PDFInfo
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- CN204408000U CN204408000U CN201420843851.8U CN201420843851U CN204408000U CN 204408000 U CN204408000 U CN 204408000U CN 201420843851 U CN201420843851 U CN 201420843851U CN 204408000 U CN204408000 U CN 204408000U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses a kind of modularization security device power-supply system, comprise booster circuit, charging circuit, single chip circuit, interface circuit, single-chip microcomputer power supply circuits and detection alarm circuit, the output of booster circuit connects charging circuit, charging circuit connects single-chip microcomputer power supply circuits and interface circuit respectively, single-chip microcomputer power supply circuits connect single chip circuit, and single chip circuit connects charging circuit.The utility model had both had the UPS function of supplying power of similar inverter, can protect security device; Have again the function of rechargeable battery, can continue as security protection and intelligent home device continuation of the journey when not having AC power supplies, normal cruising time was more than 10 hours; Relevant information, under power-off or the too low situation of back-up source electricity, initiatively can be sent to administrative staff, thus more improve the function of security protection and intelligent home device by its warning circuit; And whole system can as one independently module assembly in security device, make the maintenance of power supply, change all more convenient.
Description
This application claims the priority that name is called " security device power-supply system ", application number is the utility application of 201420517235.3.
Technical field
The utility model relates to security device product technical field, is specifically related to a kind of power-supply system of security protection burglary-resisting installation.
Background technology
Along with the raising of the safe suggestion of people and burglar steal the raising of technology, for many public places, market, shop, or even private Residence has the necessity of installing security protection burglary-resisting installation.Safety and protection system (SPS), i.e. security & protection system, to safeguard for the purpose of social public security, application safety takes precautions against the intrusion alarm system, video security monitoring system, gateway control system, the liquid crystal-spliced wall system of BSV, gate inhibition's fire-fighting system, anti-explosion safety check system etc. that product and other Related product are formed, or is that subsystem combines or integrated electronic system or network by these systems.The application of safety-protection system substantially increases existing lsafety level, but, because safety-protection system is electronic system or network, therefore leave electric safety-protection system and will lose safeguard function.At present, the electrical network of China does not also reach the level that guarantee does not have a power failure completely, and either large or small power outage still happens occasionally in various places.Like this, once there is power-off event, safety-protection system will lose efficacy, and probably will cause the generation of security incident.In addition, instant cut-off also can damage safety-protection system itself, causes safety-protection system to break down.For solving this kind of problem, someone proposes the power supply plan adopting ups power system, but ups power system can not provide long power supply to security device.Someone proposes the power-supply system can powered for a long time to security device in addition, this kind of power-supply system usually exist complex structure, cost high, need the shortcomings such as outer charged pool, and if whole power-supply system be out of order, its maintenance and replacement operation bother, and cost is high.Current safety-protection system also has a large defect to be, when after having a power failure or when stand-by power supply electricity is too low, unless there are related personnel at the scene, otherwise administrative staff cannot learn power failure or the too low information of electricity, thus can not get disposal appropriate in time, likely cause security incident.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is simpler, easy to use, power-on time is long, maintenance and replacement operation is simple, the security device power-supply system that can obtain outage information in time.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of modularization security device power-supply system, comprise single chip circuit, interface circuit and single-chip microcomputer power supply circuits, single-chip microcomputer power supply circuits connect single chip circuit, it is characterized in that: also comprise external dc input interface, booster circuit and charging circuit, external dc input interface divides three tunnels to pick out, and a road connects the input of booster circuit; Another road is transported to the electronic switching circuit that is made up of switching tube Q6 and switching tube Q7 and the control that forms via mechanical switch J1 and fuse F1 and insurance circuit output to interface circuit through isolation high-power Schottky diode D1; The single-chip microcomputer power supply circuits that 3rd tunnel is formed through isolating diode D7 connecting linear voltage stabilizing chip U3, single-chip microcomputer power supply circuits export 3V voltage; The electronic switching circuit that switching tube Q6 and switching tube Q7 is formed is by isolating diode D7 connecting linear voltage stabilizing chip U3; Booster circuit connects charging circuit, and charging circuit one tunnel connects single-chip microcomputer power supply circuits, and another road outputs to interface circuit through mechanical switch J1 and fuse F3; Single-chip microcomputer power supply circuits connect single chip circuit, and single chip circuit connects charging circuit; Booster circuit adopts chip U1 as control chip, the input pin VCC of chip U1 connects 12V DC power supply, output pin OUT is by the base stage of resistance R4 connecting triode Q2 and triode Q3, triode Q2 is cascaded with the emitter of triode Q3 and is connected with metal-oxide-semiconductor Q4, and metal-oxide-semiconductor Q4 exports 15V direct voltage by voltage stabilizing didoe D3; Charging circuit adopts chip U2 as control chip, and the VCC pin of chip U2 connects the 15V direct voltage of booster circuit output, connecting valve pipe Q5 between VG pin and DRV pin; The BAT pin of chip U2 connects rechargeable battery, and rechargeable battery connects the electronic switching circuit be made up of switching tube Q6 and switching tube Q7; Single-chip microcomputer power supply circuits adopt chip U3 as control chip, and the output of chip U3 has 3V DC voltage output end mouth; Single chip circuit adopts chip U4 as control chip, and the VDD pin of chip U4 connects the 3V DC voltage output end mouth of single-chip microcomputer power supply circuits; Wherein, the model of chip U1 is HCX2468 or FP5139; The model of chip U2 is HCX3675 or VP6103; The model of chip U3 is L78L33 or HT7133; The model of chip U4 is HCX13EF01 or SQ2711.Interface circuit can be used for connecting camera.
Further, external dc input interface is connected with interchange and turns DC circuit.
Further, also comprise the DVR boosting voltage-stabilizing output circuit be made up of chip U5, metal-oxide-semiconductor Q10, triode Q8 and triode Q9, DVR boosting voltage-stabilizing output circuit exports 13V/2A DC power supply; The model of its chips U5 is HCX2468 or FP5139.
Further, also comprise a detection alarm circuit, detection alarm circuit comprises power failure detection circuit, warning circuit, coding circuit and radio transmitter, and its power input connects the 12V/3A DC power supply exported through mechanical switch J1 and fuse F1; 12V/3A DC power supply is transported to coding circuit and radio transmitter as power supply; The power failure detection circuit be made up of triode Q11, triode Q12 and triode Q13 is exported on an other road, the 12V voltage of external dc input interface output is detected by power failure detection circuit, and be transported to coding circuit and encode, finally deliver to radio transmitter to terminal equipment; Wherein coding circuit adopts model to be the integrated circuit of EV1527.
This power-supply system can also comprise indicator light circuit, and indicator light circuit comprises a red LED, a yellow led, a green LED and a blue led, connects respectively each via triode with the corresponding pin of single chip machine controlling circuit chips U4; Can also comprise a button SW, button SW connects the SW1 pin of single chip machine controlling circuit chips U4.
Operation principle: after normal work, external dc input interface exports 12V direct current, it is that rechargeable battery charges that a road enters by the booster circuit circuit that charges the battery; Second tunnel is delivered to the electronic switching circuit that is made up of switching tube Q6 and switching tube Q7 and mechanical switch J1 again to isolation high-power Schottky D1 and is outputted to interface circuit and DVR through fuse F1 and to boost voltage-stabilizing output circuit; It is single chip circuit and key indicator lamp circuit (optional) power supply that 3rd tunnel produces 3V voltage through isolating diode D7 and linear voltage stabilization chip U3.When not having AC power supplies to input (i.e. power-off), the electronic switch be made up of switching tube Q6 and switching tube Q7 automatically detects and is seamlessly switched to battery and exports: it is single chip circuit and key indicator lamp circuit supply that a road outputs to single-chip microcomputer power supply circuits through isolating diode D7; Second tunnel outputs to interface circuit through mechanical switch J1 and fuse F1 and DVR boosting voltage-stabilizing output circuit exports to external equipment.
Whether single chip circuit no matter when there being the whole electric power system of monitoring that all normally to work when civil power.
And whether the design of mechanical switch J1 is reserved to user control complete machine and export.
The work of indicator light blue, green, yellow, red and Q9, Q10, Q11, Q13 and button SW1 control circuit: when AC power supplies inputs, send instruction after single chip machine controlling circuit detects and control corresponding indicator light circuit light blue colored lights, tell that user is powered by AC power supplies.When not having AC power supplies to input, now single chip machine controlling circuit detects that sending instruction after AC end does not have power supply controls all indicator light closedowns, tells that user is now by internal battery powers.User can push button SW1, and single chip machine controlling circuit detects the lamp that current battery charge sends the bright respective color in instruction control point, tells user's current battery charge situation.
The power failure detection circuit be made up of triode Q11, triode Q12, triode Q13 etc. is after external dc input interface exports 12V loss of voltage (i.e. power-off), triode Q13 transfers to by state by conducting state, triode Q13 collector electrode produces a pulse and delivers to triode Q12 base stage by electric capacity C28, C27, triode Q15 positively biased and conducting and then triode Q11 also conducting, a road provides high level to obtain encoding (1010) to coding circuit; An other road provides power supply to send this coding to radio transmitter to coding circuit simultaneously, is then sent to relevant device.
The utility model had both had the UPS function of supplying power of similar inverter, can protect security device; Have again the function of rechargeable battery, can continue as security protection and intelligent home device continuation of the journey when not having AC power supplies, normal cruising time was more than 10 hours; Its warning circuit is under power-off or the too low situation of back-up source electricity in addition, initiatively relevant information can be sent to administrative staff, thus more improve the function of security protection and intelligent home device; And whole system can as one independently module assembly in security device, thus make the maintenance of power supply, change all very convenient.
Accompanying drawing explanation
Fig. 1 is the utility model motherboard circuit schematic diagram;
Fig. 2 is detection alarm circuit theory diagrams;
Fig. 3 is utility model works theory diagram.
In figure, 1 is booster circuit, and 2 for controlling and insurance circuit, and 3 is charging circuit, 4 is electronic switching circuit, and 5 is single-chip microcomputer power supply circuits, and 6 is single chip circuit, and 7 is interface circuit, 8 is DVR boosting voltage-stabilizing output circuit, and 9 is power failure detection circuit, and 10 is warning circuit, and 11 is coding circuit.
Embodiment
In the present embodiment, with reference to Fig. 1, Fig. 2 and Fig. 3, described modularization security device power-supply system, comprise single chip circuit 6, interface circuit 7 and single-chip microcomputer power supply circuits 5, single-chip microcomputer power supply circuits 5 connect single chip circuit 6, also comprise external dc input interface, booster circuit 1 and charging circuit 3, external dc input interface divides three tunnels to pick out, and a road connects the input of booster circuit 1; Another road is transported to the electronic switching circuit 4 that is made up of switching tube Q6 and switching tube Q7 and the control that forms via mechanical switch J1 and fuse F1 and insurance circuit 2 output to interface circuit 7 through isolation high-power Schottky diode D1; The single-chip microcomputer power supply circuits 5 that 3rd tunnel is formed through isolating diode D7 connecting linear voltage stabilizing chip U3, single-chip microcomputer power supply circuits 5 export 3V voltage; The electronic switching circuit that switching tube Q6 and switching tube Q7 is formed is by isolating diode D7 connecting linear voltage stabilizing chip U3; Booster circuit 1 connects charging circuit 3, and charging circuit 3 one tunnel connects single-chip microcomputer power supply circuits 5, and another road outputs to interface circuit 7 through mechanical switch J1 and fuse F3; Single-chip microcomputer power supply circuits 5 connect single chip circuit 6, and single chip circuit 6 connects charging circuit 3; Booster circuit 1 adopts chip U1 as control chip, the input pin VCC of chip U1 connects 12V DC power supply, output pin OUT is by the base stage of resistance R4 connecting triode Q2 and triode Q3, triode Q2 is cascaded with the emitter of triode Q3 and is connected with metal-oxide-semiconductor Q4, and metal-oxide-semiconductor Q4 exports 15V direct voltage by voltage stabilizing didoe D3; Charging circuit adopts chip U2 as control chip, and the VCC pin of chip U2 connects the 15V direct voltage of booster circuit output, connecting valve pipe Q5 between VG pin and DRV pin; The BAT pin of chip U2 connects rechargeable battery, and rechargeable battery connects the electronic switching circuit 4 be made up of switching tube Q6 and switching tube Q7; Single-chip microcomputer power supply circuits adopt chip U3 as control chip, and the output of chip U3 has 3V DC voltage output end mouth; Single chip circuit 6 adopts chip U4 as control chip, and the VDD pin of chip U4 connects the 3V DC voltage output end mouth of single-chip microcomputer power supply circuits; Wherein, the model of chip U1 is HCX2468 or FP5139; The model of chip U2 is HCX3675 or VP6103; The model of chip U3 is L78L33 or HT7133; The model of chip U4 is HCX13EF01 or SQ2711.Interface circuit can be used for connecting camera.
External dc input interface is connected with interchange and turns DC circuit.
Also comprise DVR boosting voltage-stabilizing output circuit 8, the DVR boosting voltage-stabilizing output circuit 8 be made up of chip U5, metal-oxide-semiconductor Q10, triode Q8 and triode Q9 and export 13V/2A DC power supply; The model of its chips U5 is HCX2468 or FP5139.
Also comprise a detection alarm circuit, detection alarm circuit comprises power failure detection circuit 9, warning circuit 10, coding circuit 11 and radio transmitter, and its power input connects the 12V/3A DC power supply exported through mechanical switch J1 and fuse F1; 12V/3A DC power supply is transported to coding circuit 11 and radio transmitter as power supply; The power failure detection circuit be made up of triode Q11, triode Q12 and triode Q13 is exported on an other road, the 12V voltage of external dc input interface output is detected by power failure detection circuit, and be transported to coding circuit 11 and encode, finally deliver to radio transmitter to terminal equipment; Wherein coding circuit adopts model to be the integrated circuit of EV1527.
This power-supply system can also comprise indicator light circuit, and indicator light circuit comprises a red LED, a yellow led, a green LED and a blue led, connects respectively each via triode with the corresponding pin of single chip machine controlling circuit chips U4; Can also comprise a button SW, button SW connects the SW1 pin of single chip machine controlling circuit chips U4.
Operation principle: after normal work, external dc input interface exports 12V direct current, it is that rechargeable battery charges that a road enters by the booster circuit circuit that charges the battery; Second tunnel is delivered to the electronic switching circuit that is made up of switching tube Q6 and switching tube Q7 and mechanical switch J1 again to isolation high-power Schottky D1 and is outputted to interface circuit and DVR through fuse F1 and to boost voltage-stabilizing output circuit; It is single chip circuit and key indicator lamp circuit (optional) power supply that 3rd tunnel produces 3V voltage through isolating diode D7 and linear voltage stabilization chip U3.When not having AC power supplies to input (i.e. power-off), the electronic switch be made up of switching tube Q6 and switching tube Q7 automatically detects and is seamlessly switched to battery and exports: it is single chip circuit and key indicator lamp circuit supply that a road outputs to single-chip microcomputer power supply circuits through isolating diode D7; Second tunnel outputs to interface circuit through mechanical switch J1 and fuse F1 and DVR boosting voltage-stabilizing output circuit exports to external equipment.
No matter single chip circuit (power consumption is very little) all can normally work under whether having civil power situation is monitored whole electric power system.
And whether the design of mechanical switch J1 is reserved to user control complete machine and export.
The work of indicator light blue, green, yellow, red and Q9, Q10, Q11, Q13 and button SW1 control circuit: when AC power supplies inputs, send instruction after single chip machine controlling circuit detects and control corresponding indicator light circuit light blue colored lights, tell that user is powered by AC power supplies.When not having AC power supplies to input, now single chip machine controlling circuit detects that sending instruction after AC end does not have power supply controls all indicator light closedowns, tells that user is now by internal battery powers.User can push button SW1, and single chip machine controlling circuit detects the lamp that current battery charge sends the bright respective color in instruction control point, tells user's current battery charge situation.
The power failure detection circuit 9 be made up of triode Q11, triode Q12, triode Q13 etc. is after external dc input interface exports 12V loss of voltage (i.e. power-off), triode Q13 transfers to by state by conducting state, triode Q13 collector electrode produces a pulse and delivers to triode Q12 base stage by electric capacity C28, C27, triode Q15 positively biased and conducting and then triode Q11 also conducting, a road provides high level to obtain encoding (1010) to coding circuit; An other road provides power supply to send this coding to radio transmitter to coding circuit 11 simultaneously, is then sent to relevant device.
Below the utility model is described in detail, the above, be only the preferred embodiment of the utility model, when not limiting the utility model practical range, namely allly do impartial change according to the application's scope and modify, all should still belong in the utility model covering scope.
Claims (4)
1. a modularization security device power-supply system, comprise single chip circuit, interface circuit and single-chip microcomputer power supply circuits, single-chip microcomputer power supply circuits connect single chip circuit, it is characterized in that: also comprise external dc input interface, booster circuit and charging circuit, external dc input interface divides three tunnels to pick out, and a road connects the input of booster circuit; Another road is transported to the electronic switching circuit that is made up of switching tube Q6 and switching tube Q7 and the control that forms via mechanical switch J1 and fuse F1 and insurance circuit output to interface circuit through isolation high-power Schottky diode D1; The single-chip microcomputer power supply circuits that 3rd tunnel is formed through isolating diode D7 connecting linear voltage stabilizing chip U3, single-chip microcomputer power supply circuits export 3V voltage; The electronic switching circuit that switching tube Q6 and switching tube Q7 is formed is by isolating diode D7 connecting linear voltage stabilizing chip U3; Booster circuit connects charging circuit, and charging circuit one tunnel connects single-chip microcomputer power supply circuits, and another road outputs to interface circuit through mechanical switch J1 and fuse F3; Single-chip microcomputer power supply circuits connect single chip circuit, and single chip circuit connects charging circuit; Booster circuit adopts chip U1 as control chip, the input pin VCC of chip U1 connects 12V DC power supply, output pin OUT is by the base stage of resistance R4 connecting triode Q2 and triode Q3, triode Q2 is cascaded with the emitter of triode Q3 and is connected with metal-oxide-semiconductor Q4, and metal-oxide-semiconductor Q4 exports 15V direct voltage by voltage stabilizing didoe D3; Charging circuit adopts chip U2 as control chip, and the VCC pin of chip U2 connects the 15V direct voltage of booster circuit output, connecting valve pipe Q5 between VG pin and DRV pin; The BAT pin of chip U2 connects rechargeable battery, and rechargeable battery connects the electronic switching circuit be made up of switching tube Q6 and switching tube Q7; Single-chip microcomputer power supply circuits adopt chip U3 as control chip, and the output of chip U3 has 3V DC voltage output end mouth; Single chip circuit adopts chip U4 as control chip, and the VDD pin of chip U4 connects the 3V DC voltage output end mouth of single-chip microcomputer power supply circuits; Wherein, the model of chip U1 is HCX2468 or FP5139; The model of chip U2 is HCX3675 or VP6103; The model of chip U3 is L78L33 or HT7133; The model of chip U4 is HCX13EF01 or SQ2711.
2. modularization security device power-supply system according to claim 1, is characterized in that: external dc input interface is connected with interchange and turns DC circuit.
3. modularization security device power-supply system according to claim 1, it is characterized in that: also comprise the DVR boosting voltage-stabilizing output circuit be made up of chip U5, metal-oxide-semiconductor Q10, triode Q8 and triode Q9, DVR boosting voltage-stabilizing output circuit exports 13V/2A DC power supply; The model of its chips U5 is HCX2468 or FP5139.
4. modularization security device power-supply system according to claim 1, it is characterized in that: also comprise a detection alarm circuit, detection alarm circuit comprises power failure detection circuit, warning circuit, coding circuit and radio transmitter, and its power input connects the 12V/3A DC power supply exported through mechanical switch J1 and fuse F1; 12V/3A DC power supply is transported to coding circuit and radio transmitter as power supply; The power failure detection circuit be made up of triode Q11, triode Q12 and triode Q13 is exported on an other road, the 12V voltage of external dc input interface output is detected by power failure detection circuit, and be transported to coding circuit and encode, finally deliver to radio transmitter to terminal equipment; Wherein coding circuit adopts model to be the integrated circuit of EV1527.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420843851.8U CN204408000U (en) | 2014-09-10 | 2014-12-26 | Modularization security device power-supply system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014205172353 | 2014-09-10 | ||
| CN201420517235 | 2014-09-10 | ||
| CN201420843851.8U CN204408000U (en) | 2014-09-10 | 2014-12-26 | Modularization security device power-supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204408000U true CN204408000U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420843851.8U Expired - Fee Related CN204408000U (en) | 2014-09-10 | 2014-12-26 | Modularization security device power-supply system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204408000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987793A (en) * | 2020-08-19 | 2020-11-24 | 河北金锁安防工程股份有限公司 | Mobile triggered security alarm device |
| CN113688092A (en) * | 2021-07-21 | 2021-11-23 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Low-power-consumption safety protection control device and algorithm based on single chip microcomputer |
-
2014
- 2014-12-26 CN CN201420843851.8U patent/CN204408000U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987793A (en) * | 2020-08-19 | 2020-11-24 | 河北金锁安防工程股份有限公司 | Mobile triggered security alarm device |
| CN113688092A (en) * | 2021-07-21 | 2021-11-23 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Low-power-consumption safety protection control device and algorithm based on single chip microcomputer |
| CN113688092B (en) * | 2021-07-21 | 2023-12-08 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Low-power-consumption safety protection control device based on singlechip |
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| Date | Code | Title | Description |
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| 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: 20150617 Termination date: 20171226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |