CN101945512A - Type judgment and protection circuit of light source body as well as stabilizer thereof - Google Patents
Type judgment and protection circuit of light source body as well as stabilizer thereof Download PDFInfo
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- CN101945512A CN101945512A CN2009101518799A CN200910151879A CN101945512A CN 101945512 A CN101945512 A CN 101945512A CN 2009101518799 A CN2009101518799 A CN 2009101518799A CN 200910151879 A CN200910151879 A CN 200910151879A CN 101945512 A CN101945512 A CN 101945512A
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Abstract
The invention relates to a type judgment and protection circuit of a light source body as well as a stabilizer thereof for judging and protecting a light source body connected to a power supply loop. The type judgment and protection circuit of the light source body comprises a voltage booster circuit, a voltage booster start switch, a control unit and a current detection unit, wherein the voltage booster circuit is electrically connected with the power supply loop and the voltage booster start switch and electrically connected with the control unit through the voltage booster start switch, the current detection unit is electrically connected with the light source body and the control unit for detecting the state of a current passing through the light source body and generating a feedback signal to the control unit, the power supply loop can be also connected in series with a voltage control switch to truncate power supplied to the light source body under the control of the control unit.
Description
Technical field
The present invention is about a kind of design of protective circuit of light source body, particularly about a kind of kind differentiation and protective circuit and stabilizer thereof of light source body.
Background technology
In constantly progressive modernization life, lighting offers the illumination of people's abundance, make lighting in people's life, play the part of indispensable role, no matter be workplaces such as factory, office, or public place such as road, shopping center, station, rapid transit station, and household or refectory each corner, all must by lighting provide people live in required illumination.
Present home lighting light fixture or outdoor lighting lamp, rare special safety protection function design in its relevant circuit.In this case, if when lighting in use, is exported to voltage and the light source body of the light source body (bulb) of lighting and itself is not inconsistent, can cause and can't start, serious words even have the situation generation of burning cause the sizable puzzlement of user.When circuit is in fault or Light Condition, because its electric power loop still continues out-put supply, so the consumer who does not only meet power saving now uses demand, and can cause the raising of fault rate, shortening in useful life even allow the user take place to get an electric shock unexpected.
Summary of the invention
The technical problem that institute of the present invention desire solves
In view of the above, the effect that the existing circuit that is used for lighting only provides supply of electric power to give the light source body, the rare special safety protection function design of its circuit itself.Therefore, in the use, if the user is unclear for the demand voltage of light source body; regular meeting is after user's assembling or more changing the bulb; the situation that has bulb to start or to burn, and bulb be not installed or is being unloaded under the situation of bulb, meet accident easily because of circuit is unloaded.
For this reason; purpose of the present invention promptly provides a kind of kind differentiation and protective circuit and stabilizer thereof of light source body; by judging the kind of light source body; and the situations such as bulb or fault that judged whether take place; and then the supply of fit adjustment electric power loop gives the electric power of light source body, to reach the effect of safeguard protection.
The technological means that the present invention deals with problems
The present invention is a kind of kind differentiation and protective circuit of light source body for solving the technological means that prior art problems adopted; comprise that a booster circuit, that is electrically connected at electric power loop is electrically connected at the current detecting unit that control unit, that the starting switch that boosts of booster circuit, is electrically connected at booster circuit via the starting switch that boosts is electrically connected at light source body and control unit; in order to the current status of detection, and produce a feedback signal to control unit by the light source body.Wherein, the voltage output control switch of also can connecting in the electric power loop is blocked the electric power that is supplied to the light source body.
Electric power loop is supplied one first kind voltage (being 110 volts of voltages) to the light source body in preferred embodiment, detect the current status of electric power loop via current detecting unit, whether control unit is differentiated the light source body according to feedback signal be the first kind light source body that is suitable for the first kind voltage, if promptly continue the supply first kind voltage to the light source body; If not, control unit starts booster circuit via the starting switch that boosts, and boosts in regular turn via electric power loop and supplies an at least a time kind voltage to the light source body.
In preferred embodiment of the present invention, when the light source body is not when being suitable for the first kind light source body of the first kind voltage, the second kind voltage of 220 volts of the supplies of boosting earlier, whether differentiate the light source body again is the second kind light source body that is suitable for the second kind voltage.If promptly continue the supply second kind voltage to the light source body; Whether if not, then boost and supply the third class voltage of 500 volts, differentiating the light source body again is the third class light source body that is suitable for the third class voltage.If, promptly continue the third class voltage of supply to the light source body, if not, then via a voltage output control switch of being connected in the electric power loop, the electric power of severing supply.
In preferred embodiment of the present invention, electric power loop also is electrically connected with a rectification circuit, and the third class light source body is a 500V high-pressure discharge formula bulb, is electrically connected at light source body kind via a ballasting circuit and differentiates and protective circuit.In addition, also kind differentiation of light source body and protective circuit can be combined with ballasting circuit, become a stabilizer with the differentiation of light source body kind and protective circuit.
The present invention contrasts the effect of prior art
Via the technology used in the present invention means, by detecting the kind of judging the light source body by the current status of light source body.When the light source body is 110V Electricity-saving lamp bulb or 110V osram lamp, then keep 110 volts the first kind voltage of original output, protection Electricity-saving lamp bulb or osram lamp can not burn because of overtension.When the light source body is 220V Electricity-saving lamp bulb or 220V osram lamp, then boost output 220 volts the second kind voltage.When the light source body is 500V high-pressure discharge formula bulb, then boost again and export the third class voltage of 500 volts, 500V high-pressure discharge formula bulb can can't not started because of brownout.
Moreover; when bulb be not installed, unloaded bulb, bulb break fault or bite broken as mouse under the situation of faults that all factors caused such as electric wire, electric wire be old; then block the electric power that is supplied to the light source body; not only power saving; more can reduce fault and increase circuit useful life, prevent to get an electric shock and accident that fault caused; protection user's safety, its circuit more can be integrated with general ballast circuit, has more convenience on using.
Specific embodiment of the present invention will be further described by following embodiment and accompanying drawing.
Description of drawings
Fig. 1 is for showing the circuit block diagram of preferred embodiment of the present invention;
Fig. 2 assembles the circuit block diagram of the first kind light source body for showing the present invention;
Fig. 3 assembles the circuit block diagram of the second kind light source body for showing the present invention;
Fig. 4 assembles the circuit block diagram of the third class light source body for showing the present invention;
Fig. 5 is for showing the circuit block diagram of the present invention under unloaded situation;
Fig. 6 is for showing the control flow chart of preferred embodiment of the present invention.
[main element symbol description]
100 light source body kinds are differentiated and protective circuit
1 rectification circuit
2 booster circuits
3 starting switches that boost
4 control units
5 current detecting units
6 voltage output control switch
7 light source bodies
The 7a first kind light source body
The 7b second kind light source body
The third class light source body of 7c
8 ballasting circuits
9 stabilizers
The C electric power loop
The Fb feedback signal
The S1 triggering signal
The S2 switching signal
The V1 first kind voltage
The V2 second kind voltage
The third class voltage of V3
The Vin input voltage
Embodiment
Consult shown in Figure 1ly, it is for showing the circuit block diagram of preferred embodiment of the present invention.The kind differentiation of light source body of the present invention and protective circuit 100 are connected in one and are supplied with among the electric power loop C of an input voltage vin.Light source body kind is differentiated and protective circuit 100 includes a rectification circuit 1, a booster circuit 2, boost starting switch 3, a control unit 4, a current detecting unit 5 and a voltage output control switch 6, in order to differentiate and to protect a light source body 7 that is connected among the electric power loop C.
Consult Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5 in regular turn, and cooperate Fig. 6 that the control flow of preferred embodiment of the present invention when the practical application done one to be described as follows.
At first, supply one first kind voltage V1 to light source body 7 (step 101) by electric power loop C, the first kind voltage V1 is 110 volts line voltage of general family expenses (magnitude of voltage not necessarily can just be 110 volts actually, but at 110 volts up and down in the certain limit) in the present embodiment.Then, the current status (step 102) via current detecting unit 5 detection electric power loop C produces feedback signal Fb to control unit 4.
When light source body 7 was not the first kind light source body 7a, control unit 4 was according to feedback signal Fb not (not conducting) during sensing loop.4 of control units produce a triggering signal S1 to the starting switch 3 that boosts, starting switch 3 starts booster circuit 2 (step 105) via boosting, via electric power loop C at least a the kind voltage of supply that boosts in regular turn, in an embodiment of the present invention, boost the in regular turn time kind voltage (220 volts the second kind voltage V2 and 500 volts the third class voltage V2) of two kinds of supplies.
Consult Fig. 3, after booster circuit 2 starts, then at first the first kind voltage V1 is boosted to the second kind voltage V2, supply the second kind voltage V2 to light source body 7 (step 106) via electric power loop C, the second kind voltage V2 is 220 volts of voltages (magnitude of voltage not necessarily can just be 220 volts actually, but at 220 volts up and down in the certain limit) in the present embodiment.Then, detect the current status (step 107) of electric power loop C via current detecting unit 5, produce feedback signal Fb to control unit 4, control unit 4 differentiates according to feedback signal Fb whether light source body 7 is the second kind light source body 7b (step 108), if, for example 220V Electricity-saving lamp bulb or 220V osram lamp, can conducting under the second kind voltage V2 shinny, then make electric power loop C continue the supply second kind voltage V2 (step 109).
If not, then consult Fig. 4, its for supply the third class voltage V3 that boosts again to light source body 7 (step 110), the third class voltage V3 is 500 volts of voltages (magnitude of voltage not necessarily can just be 500 volts actually, but at 500 volts up and down in the certain limit) in the present embodiment.The third class light source body 7c that is suitable for the third class voltage V3 comprises 500V high-pressure discharge formula bulb, generally need be electrically connected at light source body kind via a ballasting circuit 8 and differentiate and protective circuit 100.In addition, the present invention can combine differentiation of light source body kind and protective circuit 100 when practical application with ballasting circuit 8, become a stabilizer 9 with the differentiation of light source body kind and protective circuit 100.
After supplying the third class voltage V3, detect the current status (step 111) of electric power loop C equally via current detecting unit 5, produce feedback signal Fb to control unit 4.Control unit 4 differentiates according to feedback signal Fb whether light source body 7 is the third class light source body (step 112).If light source body 7 is the third class light source body 7c, then can be under the third class voltage V3 conducting shinny.The feedback signal Fb that control unit 4 is produced when receiving conducting then continues the third class voltage V3 (step 113) of supply, keeps the third class light source body 7c and lights.
If not, consult shown in Figure 5, since do not install as yet that light source body 7, light source body 7 unload, under circuit Light Condition when bulb break fault or circuit break down, control unit 4 equally can be because of sensing loop not according to feedback signal Fb, and electric power loop C is seen through boost and be supplied to the third class voltage V3 in regular turn.After boosting to the third class voltage V3, control unit 4 according to feedback signal Fb if still not during sensing loop, then judge it is unloaded situation, then can produce a switching signal S2 to voltage output control switch 6 this moment, make voltage output control switch 6 close (open-circuit condition), to block the electric power (step 114) that is supplied to light source body 7.
By above embodiment as can be known, the value on light source body kind differentiation provided by the present invention and protective circuit and the true tool industry of stabilizer thereof was so the present invention had accorded with the requirement of patent already.Only Yi Shang narration only is preferred embodiment of the present invention explanation, allly is skillful in this skill person when doing other all improvement according to above-mentioned explanation, and only these change and still belong in invention spirit of the present invention and the following claim that is defined.
Claims (12)
1. the kind of a light source body is differentiated and protective circuit, in order to differentiate and to protect a light source body that is connected in the electric power loop, it is characterized in that, comprising:
One booster circuit is electrically connected at this electric power loop;
One starting switch that boosts is electrically connected at this booster circuit;
One control unit is electrically connected at this booster circuit via this starting switch that boosts;
One current detecting unit is electrically connected at this light source body and this control unit, in order to the current status of detection by this light source body, and produces a feedback signal to this control unit;
This electric power loop is supplied one first kind voltage to this light source body, detect the current status of this electric power loop via this current detecting unit, whether this control unit is differentiated this light source body according to feedback signal be the first kind light source body that is suitable for this first kind voltage, if promptly continue this first kind voltage of supply to this light source body; If not, this control unit starts this booster circuit via this starting switch that boosts, and boosts in regular turn via this electric power loop and supplies an at least a time kind voltage to this light source body.
2. the kind of light source body as claimed in claim 1 is differentiated and protective circuit; it is characterized in that; also include a voltage output control switch; be series at this electric power loop and electrically connect this control unit; detecting bulb or fault, bulb at this current detecting unit can't start or burn situation, bulb is not installed and is unloaded under the situation of bulb; this voltage output control switch is blocked the electric power that is supplied to this light source body under the control of this control unit.
3. the kind of light source body as claimed in claim 1 is differentiated and protective circuit, it is characterized in that this first kind the electricity is at 110 volts of pressure special line voltage.
4. the kind of light source body as claimed in claim 1 is differentiated and protective circuit, it is characterized in that this time kind voltage comprises 220 volts the second kind voltage.
5. the kind of light source body as claimed in claim 1 is differentiated and protective circuit; it is characterized in that; this time kind voltage comprises the third class voltage of 500 volts; the third class light source body that is suitable for this third class voltage comprises a 500V high-pressure discharge formula bulb, and the kind that is electrically connected at this light source body via a ballasting circuit is differentiated and protective circuit.
6. the kind of light source body as claimed in claim 1 is differentiated and protective circuit, it is characterized in that, also comprises a rectification circuit, is electrically connected at this electric power loop.
7. one kind has the kind differentiation of light source body and the stabilizer of protective circuit, in order to differentiate and to protect a light source body that is connected in the electric power loop, it is characterized in that, comprising:
One ballasting circuit is electrically connected at this electric power loop;
The kind of one light source body is differentiated and protective circuit, is electrically connected at this electric power loop and this ballasting circuit, includes:
One booster circuit is electrically connected at this electric power loop;
One starting switch that boosts is electrically connected at this booster circuit;
One control unit is electrically connected at this booster circuit via this starting switch that boosts;
One current detecting unit is electrically connected at this light source body and this control unit, in order to the current status of detection by this light source body, and produces a feedback signal to this control unit;
This electric power loop is supplied one first kind voltage to this light source body, detect the current status of this electric power loop via this current detecting unit, whether this control unit is differentiated this light source body according to feedback signal be the first kind light source body that is suitable for the first kind voltage, if promptly continue this first kind voltage of supply to this light source body; If not, this control unit starts this booster circuit via this starting switch that boosts, and boosts in regular turn via this electric power loop and supplies an at least a time kind voltage to this light source body.
8. the kind with light source body as claimed in claim 7 is differentiated and the stabilizer of protective circuit; it is characterized in that; also include a voltage output control switch; be series at this electric power loop and electrically connect this control unit; detecting bulb or fault, bulb at this current detecting unit can't start or burn situation, bulb is not installed and is unloaded under the situation of bulb; this voltage output control switch is blocked the electric power that is supplied to this light source body under the control of this control unit.
9. the kind with light source body as claimed in claim 7 is differentiated and the stabilizer of protective circuit, it is characterized in that this first kind the electricity is at 110 volts of pressure special line voltage.
10. the kind with light source body as claimed in claim 7 is differentiated and the stabilizer of protective circuit, it is characterized in that this time kind voltage comprises 220 volts the second kind voltage.
11. the kind with light source body as claimed in claim 7 is differentiated and the stabilizer of protective circuit; it is characterized in that; this time kind voltage comprises the third class voltage of 500 volts, and the third class light source body that is suitable for this third class voltage comprises a 500V high-pressure discharge formula bulb.
12. the kind with light source body as claimed in claim 7 is differentiated and the stabilizer of protective circuit, it is characterized in that, also comprises a rectification circuit, is electrically connected at this electric power loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101518799A CN101945512A (en) | 2009-07-03 | 2009-07-03 | Type judgment and protection circuit of light source body as well as stabilizer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101518799A CN101945512A (en) | 2009-07-03 | 2009-07-03 | Type judgment and protection circuit of light source body as well as stabilizer thereof |
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| Publication Number | Publication Date |
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| CN101945512A true CN101945512A (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101518799A Pending CN101945512A (en) | 2009-07-03 | 2009-07-03 | Type judgment and protection circuit of light source body as well as stabilizer thereof |
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| CN (1) | CN101945512A (en) |
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- 2009-07-03 CN CN2009101518799A patent/CN101945512A/en active Pending
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| US10317017B2 (en) | 2015-03-10 | 2019-06-11 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
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| US10890300B2 (en) | 2015-03-10 | 2021-01-12 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US10605415B2 (en) | 2015-03-10 | 2020-03-31 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11754232B2 (en) | 2015-03-10 | 2023-09-12 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED lamp and power source module thereof related applications |
| US11698170B2 (en) | 2015-03-10 | 2023-07-11 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US10571081B2 (en) | 2015-03-10 | 2020-02-25 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp and driving method therefor |
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