CN1984521B - Protector of electronic positioner - Google Patents
Protector of electronic positioner Download PDFInfo
- Publication number
- CN1984521B CN1984521B CN2005101344695A CN200510134469A CN1984521B CN 1984521 B CN1984521 B CN 1984521B CN 2005101344695 A CN2005101344695 A CN 2005101344695A CN 200510134469 A CN200510134469 A CN 200510134469A CN 1984521 B CN1984521 B CN 1984521B
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- protective device
- assembly
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- filter
- rectifier
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- 230000001012 protector Effects 0.000 title 1
- 230000001681 protective effect Effects 0.000 claims abstract description 58
- 239000003381 stabilizer Substances 0.000 claims description 35
- 238000001914 filtration Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
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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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention is used for providing protection for electronic ballast based on over current status. When system starts operation, if the current transformer (CT) detects the signal level is lower than a safe value, the protective device will not work; if detecting the signal level is lower than a safe value, then the load of ballast is considered at over current status, at this time the protective device will be started to reduce the load of working system.
Description
Technical field
The present invention is a kind of protective device, more a kind of protective device of electric stabilizer, particularly a kind of protective device that uses the signal of current transformer on the fluorescent tube loop (CT) detection as the electric stabilizer that starts foundation.
Background technology
Fluorescent lamp is to be a kind of lighting apparatus the most easy to use, under the viewpoint based on its power saving and environmental protection, in fact be one to have energy-conservation and economic illuminating lamp kind, but fluorescent lamp can directly not start like general bulb, must see through start-up circuit drives, general prior art all starts fluorescent lamp with the stable circuit of inductance type, but so design but has following shortcoming:
* the stable circuit start speed of inductance type is slow excessively;
* cause the fluorescent lamp luminous efficiency not good
* the stable circuit volume of inductance type produces high heat more greatly and also, and is very dangerous in the use; And
* make the flicker degree of fluorescent lamp be about 20%.
Then there is prior art to replace the stable circuit of inductance type again with electronic ballast, can improve aforesaid part shortcoming, but electronic ballast still has many shortcomings, as: easily produce long-pending hot stall problem, luminous power and do not calculate ideal yet, easily produce problem such as current harmonics interference, so how effectively to improve the electric stabilizer of fluorescent lamp, be the technical task of demanding urgently inquiring in fact.
After look into the novel patent that TaiWan, China patent announcement No. 473000 " improvement of fluorescent lamp circuit structure " arranged, the characteristics of this patent are that separate type direct current power supply absolute construction is to share for most separated fluorescent light electronic ballast circuit economy, and create heat-dissipating space and the effect that doubles to gain, and then doubled to carry out the gain circuitry function, come the direct current power of the high high-quality of output, in order to supply the power factor of effective lifting fluorescent lamp.
Summary of the invention
Main purpose of the present invention is the protective device that proposes a kind of electric stabilizer, its purpose is to improve district's point of existing fluorescence lamp electronic stabilizer, the present invention is the condition that protection mechanism is carried out that is produced as with overcurrent, when system begins to operate, current transformer (Currenttransformer on the fluorescent tube loop; CT) detect the accurate position of signal if be lower than safety value; protective device then is failure to actuate, if the accurate position that detects signal then is considered as the stabilizer load and is in the following of overcurrent if be lower than safety value; this moment, protective device then started, and then safeguarded lamp tube service life and fail safe thereof.
Relevant detailed content of the present invention and technology just cooperate graphic being described as follows now:
Description of drawings
Fig. 1 is the protective device circuit framework schematic diagram of electric stabilizer of the present invention;
Fig. 2 is the protective device first embodiment schematic diagram of electric stabilizer of the present invention;
Fig. 3 is the protective device second embodiment schematic diagram of electric stabilizer of the present invention; And
Fig. 4 is protective device the 3rd embodiment schematic diagram of electric stabilizer of the present invention.
[primary clustering symbol description]
10 (the protective devices of a～n)
Assembly is judged in 11 accurate positions
12 flow restricters
13 pressurizers
14 filters
15 rectifiers
16 protection controllers
17 adjustable votage dividers
18 voltage dividers
20 (the filtering amending units of a～n)
21 filters
22 rectifiers
23 merits are because of corrector
30 (the semi-bridge convertors of a～n)
40 (the LC resonators of a～n)
50 (the fluorescent tubes of a～n)
The G earth terminal
The AC AC power
The CT current transformer
The LC resonance signal
The PW DC power supply
The TS detection signal
Embodiment
The present invention is the protective device for a kind of electric stabilizer; this protective device is to be arranged in the Circuits System of the product with electric stabilizer; and when electric stabilizer produces overcurrent condition the protection electric stabilizer; at first please refer to Fig. 1, be the protective device circuit framework schematic diagram of electric stabilizer of the present invention.
The protective device 10 of electric stabilizer of the present invention can include accurate position and judge assembly 11; flow restricter 12; pressurizer 13; filter 14; rectifier 15; protection controller 16 and partial pressure unit; wherein accurate position judges that assembly 11 is used to receive a detection signal TS (electric current) of current transformer (CT); and in this detection signal TS be higher than one punctual; make accurate position judge assembly 11 conductings; and flow restricter 12 judges that with accurate position assembly 11 is connected the magnitude of current that limits protective device 10; pressurizer 13 is connected the magnitude of voltage that is used to limit protective device 10 with flow restricter 12; and filter 14 and pressurizer 13 and downlink connection; this filter 14 be a capacitance component can be used for filtering or with the abrupt voltage wave bypass to earth terminal G; rectifier 15 is used for rectification in addition behind the one resonance signal LC of connecting circuit system; protection controller 16 is connected with rectifier 15; and synchronous triggering when judging assembly 11 conductings with accurate position; start protective device 10; include variable dividing potential drop assembly 17 and dividing potential drop assembly 18 in the partial pressure unit; this variable dividing potential drop assembly 17 is a variable resistor; can come the modulation resistance according to the bearing power of protective device 10, and receive and be connected the back with dividing potential drop assembly 18 behind the direct current power supply PW and form the branch pressure-controlled.
When protective device 10 comes into operation, accurate position judges that assembly 11 receives the detection signal TS of current transformer (CT), if it is punctual to be lower than the trigger bit of judging assembly 11 in accurate position, 11 not conductings of assembly are judged in accurate position, also represent that this work system is under the state of trouble free service, for reaching above-mentioned detection action, accurate position judgement assembly 11 can be selected Zener diode (Zener) or two-way triggering thyristor (DIAC) for use, if detection signal TS is higher than the trigger bit standard that assembly 11 is judged in accurate position, 11 conductings that are triggered of assembly are judged in accurate position, and trigger protection controller 16 immediately, this protection controller 16 is that three end brake fluids trigger assembly, and more can select thyristor (Silicon Controlled Rectifier for use; SCR), the reactance meeting on the resonant slots in the work system at this moment declines to a great extent, then branches in the protective device 10 work that Circuits System can not continued under the state of overcurrent.
Next just the execution mode of the protective device of electric stabilizer of the present invention is described in detail, please refer to Fig. 2, is the protective device first embodiment schematic diagram of electric stabilizer of the present invention.
Whole electric stabilizer can be divided into three work sections and represent, is: protective device 10, filtering amending unit 20 and harmonic conversion unit; After AC power AC flows into; at first filtering amending unit 20 is in order to be sent to the harmonic conversion unit behind the filter rectification with AC power AC in addition; the harmonic conversion unit is in order to changing voltage and produce resonance frequency; the harmonic conversion unit wherein more can include semi-bridge convertor 30; LC resonator 40 and other working cell (as: driver; the loop lights a lamp; current transformer (CT)); again a working power is sent to fluorescent tube 50 at last and produces light source; protective device 10 then is connected with LC resonator 40 and fluorescent tube 50, and protects electric stabilizer when overcurrent condition produces.
Next please continue with reference to Fig. 3, be the protective device second embodiment schematic diagram of electric stabilizer of the present invention.
Electric stabilizer except can divide aforesaid three work sections, also can further be subdivided into four work sections represent, be: protective device 10, filtering amending unit 20 semi-bridge convertors 30 and LC resonator 40; After AC power AC flows into; at first filtering amending unit 20 is in order to be sent to the harmonic conversion unit behind the filter rectification with AC power AC in addition; this filtering amending unit 20 can include filter 21; rectifier 22 and merit are because of corrector 23; this filter 21 is the filter of an elimination electromagnetic interference (EMI); and merit is because of corrector 23 optional active and passive types; semi-bridge convertor 30 is in order to changing voltage; wherein more include actuator unit; 40 of LC resonators produce the resonance action; the working cell that wherein also includes other as: the loop lights a lamp; current transformer CT; again working power is sent to fluorescent tube 50 at last and produces light source; protective device 10 then is connected with LC resonator 40 and fluorescent tube 50; and when producing, overcurrent protects electric stabilizer; because protective device 10 has been described in detail in preamble, so do not repeat them here.
Except aforesaid two kinds of execution modes, the present invention is not violating the large-scale fluorescent lamp system that is equally applicable to one-to-many under the same invention spirit, next please continue with reference to Fig. 4, is protective device the 3rd embodiment schematic diagram of electric stabilizer of the present invention.
This large-scale fluorescent lamp system only has a filtering amending unit 20; this filtering amending unit 20 can include filter 21 equally; rectifier 22 and merit are because of corrector 23; but filtering amending unit 20 rear ends then can and connect the light emitting module of plural groups; after AC power AC handles through filtering amending unit 20; then be sent in each light emitting module; and more include the harmonic conversion unit in each light emitting module; fluorescent lamp 50 and protective device 10; harmonic conversion is provided with in the unit equally: and semi-bridge convertor 30 (a～n); driver; the loop lights a lamp; current transformer (CT) and LC resonator 40 (a～n); the harmonic conversion unit is used for changing voltage and produces resonance frequency; (producing light source, (a～n) still protects each light emitting module to protective device 10 to fluorescent-lamp-use 50 when overcurrent condition produces after receiving working power for a～n).
Though the present invention discloses as above with aforesaid preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (9)
1. the protective device of an electric stabilizer, this protective device is to be arranged in product one Circuits System with this electric stabilizer, it is characterized in that this protective device includes:
Surely assembly is judged in the position, and assembly is judged in order to receiving a current signal in this standard position, and is higher than this standard position in this current signal and judges that assembly one trigger bit is punctual, makes this standard position judge the assembly conducting;
One flow restricter, this flow restricter judges that with this standard position assembly is connected, this flow restricter is in order to limit a magnitude of current of this protective device;
One pressurizer, this pressurizer is connected with this flow restricter, and this pressurizer is in order to limit a magnitude of voltage of this protective device;
One filter, this filter is connected to connect mode in the lump with this pressurizer, and this filter is in order to abrupt voltage wave bypass in addition;
One rectifier, this rectifier is in order to connect rectification in addition behind the resonance signal in this Circuits System;
One protection controller, this protection controller is connected with this rectifier, this protection controller synchronous triggering when the assembly conducting is judged in this standard position, and this protective device is started; And
One partial pressure unit, this partial pressure unit is connected with the protection controller, and this partial pressure unit is in order to connecting a direct current current supply circuit, and connects with a plurality of dividing potential drop assemblies and to make up to form a dividing potential drop effect.
2. the protective device of electric stabilizer according to claim 1 is characterized in that, describedly should the standard position judges that assembly is more appointed in a Zener diode and the two-way triggering thyristor and gets one.
3. the protective device of electric stabilizer according to claim 1 is characterized in that, described should the protection controller more one or three end brake fluids trigger assembly, and should trigger a more thyristor of assembly.
4. the protective device of electric stabilizer according to claim 1 is characterized in that described this filter is a capacitance component more.
5. the protective device of electric stabilizer according to claim 1 is characterized in that described this partial pressure unit more includes:
One variable dividing potential drop assembly, this variable dividing potential drop assembly is a variable resistor, this variable dividing potential drop assembly is in order to come the modulation resistance according to this protective device one bearing power; And
One dividing potential drop assembly, this dividing potential drop assembly are connected the back and form this dividing potential drop effect with this variable dividing potential drop assembly.
6. separate type electric stabilizer with protective device, this electric stabilizer is to be connected with a fluorescent lamp, and in order to start fluorescent lamp, this electric stabilizer includes:
One filtering amending unit, this filtering amending unit is in order to AC power filter rectification in addition;
One harmonic conversion unit, this harmonic conversion unit is connected with this filtering amending unit, and this harmonic conversion unit is in order to changing voltage and produce a high-frequency ac power; And
One protective device, this protective device is connected with this harmonic conversion unit, and this protective device protective device as claimed in claim 1.
7. as having the separate type electric stabilizer of protective device as described in the claim 6; it is characterized in that; described this filtering amending unit more includes a filter, a rectifier and a merit because of corrector, and this filter is connected with this rectifier, and this rectifier is connected because of corrector with this merit.
8. the fluorescent lamp system with protective device is characterized in that, described this fluorescent lamp system includes:
One filtering amending unit, this filtering amending unit is in order to AC power filter rectification in addition; And
The plural groups light emitting module more includes in this light emitting module:
One harmonic conversion unit, this harmonic conversion unit is connected with this filtering amending unit, and this harmonic conversion unit is in order to changing voltage and produce a high-frequency ac power;
One fluorescent lamp, this fluorescent lamp is connected with this harmonic conversion unit, and this fluorescent-lamp-use is to produce light source; And
One protective device, this protective device is connected with this harmonic conversion unit and this fluorescent lamp, and this protective device protective device as claimed in claim 1.
9. as having the fluorescent lamp system of protective device as described in the claim 8; it is characterized in that; described this filtering amending unit also includes a filter, a rectifier and a merit because of corrector, and this filter is connected with this rectifier, and this rectifier is connected because of corrector with this merit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101344695A CN1984521B (en) | 2005-12-15 | 2005-12-15 | Protector of electronic positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101344695A CN1984521B (en) | 2005-12-15 | 2005-12-15 | Protector of electronic positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1984521A CN1984521A (en) | 2007-06-20 |
| CN1984521B true CN1984521B (en) | 2011-08-10 |
Family
ID=38166635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101344695A Active CN1984521B (en) | 2005-12-15 | 2005-12-15 | Protector of electronic positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1984521B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095883A (en) * | 1993-05-18 | 1994-11-30 | 王固盘 | Electronic ballast |
| CN1429059A (en) * | 2001-12-27 | 2003-07-09 | 山拔克电子股份有限公司 | Fault protection circuit for electronic balast of fluorescent lamp |
| CN2731806Y (en) * | 2004-09-15 | 2005-10-05 | 青春茂 | Fully automatic emergency electronic stabilier |
-
2005
- 2005-12-15 CN CN2005101344695A patent/CN1984521B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095883A (en) * | 1993-05-18 | 1994-11-30 | 王固盘 | Electronic ballast |
| CN1429059A (en) * | 2001-12-27 | 2003-07-09 | 山拔克电子股份有限公司 | Fault protection circuit for electronic balast of fluorescent lamp |
| CN2731806Y (en) * | 2004-09-15 | 2005-10-05 | 青春茂 | Fully automatic emergency electronic stabilier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1984521A (en) | 2007-06-20 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |