CN104066222A - Light fixture emergency power supply circuit - Google Patents
Light fixture emergency power supply circuit Download PDFInfo
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- CN104066222A CN104066222A CN201310092512.0A CN201310092512A CN104066222A CN 104066222 A CN104066222 A CN 104066222A CN 201310092512 A CN201310092512 A CN 201310092512A CN 104066222 A CN104066222 A CN 104066222A
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Abstract
The invention discloses a light fixture emergency power supply circuit. The light fixture emergency power supply circuit is used for controlling a power storage module to supply power to a light fixture when commercial power is cut off, and comprises a commercial power control module, a power storage control module, a reversal connection module and a switch module. The light fixture emergency power supply circuit controls power supply modes between the commercial power and the power storage module through the commercial power control module and the power storage control module. Specifically, when the commercial power is normally supplied, the commercial power control module controls the switch module to break connection between the power storage module and a load, and power is supplied by the commercial power to the load; and when the commercial power stops supplying power, the commercial power control module controls the switch module to connect the power storage module with the load, and the power storage control module controls the power storage module to supply power to the load, at the same time, the reversal connection module cuts off the power storage module from supplying power to the commercial control module, and the power storage module is enabled to continuously supply power to the load, such that automatic switching of the power supply modes between the commercial power and the power storage module is realized.
Description
Technical field
The present invention relates to emergency circuit, particularly relate to a kind of light fixture emergency supply circuit of automatically switch civil power and power storage module powering mode.
Background technology
Emergency light: the general name of the light fixture that emergency lighting is used.Fire emergency system mainly comprises accident emergency illumination, escape hatch mark and indicator light, is after normal illumination dump, to guide trapped personnel to evacuate or launch fire fighting and rescue action to arrange in the time of breaking out of fire.
In prior art, emergency circuit can be battery charging in the time that civil power is normal, and when municipal power failure, battery discharge is the power supply of rear class load circuit, drives bulb illumination, realizes emergency function.Although this circuit can complete emergency service function, in practice and in installing, there will be problem, in installation process, civil power is in off-state, if circuit connects battery, light fixture will be lighted by driving, affects installation personnel judgement.If fill a switch after battery, in normal work, just can not realize automatic switchover.
Summary of the invention
Based on this, provide a kind of light fixture emergency supply circuit of automatically switch civil power and power storage module powering mode.
A kind of light fixture emergency supply circuit, for when civil power is stopped power supply, controls power storage module light fixture is powered, and comprises city's electric control module, electric power storage control module, reversal connection module and switch module;
The input of described city electric control module is for being electrically connected with mains supply, the output of described city electric control module is electrically connected with the control end of described switch module, the earth terminal ground connection of described city electric control module, a point pressure side for described city electric control module is electrically connected with the input of described reversal connection module, and the output of described reversal connection module is electrically connected with the input of described city electric control module;
The input of described electric power storage control module is for being electrically connected with the positive pole of described power storage module, the output of described electric power storage control module is electrically connected with the input of described reversal connection module and the input of described switch module respectively, the earth terminal ground connection of described electric power storage control module, the output of described switch module is used for connecting load;
Wherein, described city electric control module, in the time that mains supply is normal, for controlling the conducting between described electric power storage control module and described power storage module, and is controlled described switch module cut-off, mains supply powers to the load, and described switch module disconnects being connected between described power storage module and load;
In the time that mains supply has a power failure, switch module conducting described in the electric control module control of described city, described power storage module is connected with described switch module by described electric power storage control module, described power storage module powers to the load by described switch module, and described reversal connection module is used for ending described power storage module and powers to described city electric control module.
In an embodiment, also comprise the power module being electrically connected with city's electric control module therein, described power module is for converting civil power to described city electric control module and the required direct voltage of load.
Therein in an embodiment, described power module comprises transformer T, rectifier bridge BD and filter capacitor C1, described transformer T is electrically connected successively with described rectifier bridge BD, described filter capacitor C1 is in parallel with the output of described rectifier bridge BD, and the positive pole of described filter capacitor C1 is electrically connected with the input of described city electric control module with the points of common connection of described rectifier bridge BD.
In an embodiment, described city electric control module comprises divider resistance R1, divider resistance R2, divider resistance R3, divider resistance R4, triode Q1 and triode Q2 therein;
Described divider resistance R1 and described divider resistance R2 are series between mains supply and earth terminal, and the points of common connection of described divider resistance R1 and described divider resistance R2 is electrically connected with the base stage of described triode Q1;
Described divider resistance R3 and described divider resistance R4 are series between the input and earth terminal of described reversal connection module, the points of common connection of described divider resistance R3 and described divider resistance R4 is electrically connected with the collector electrode of described triode Q1 and the base stage of described triode Q2 respectively, the equal ground connection of emitter of the emitter of described triode Q1 and described triode Q2, the collector electrode of described triode Q2 is electrically connected with control end and the load of described switch module respectively.
In an embodiment, described city electric control module also comprises filter capacitor C2 therein, and described filter capacitor C2 is parallel between the base stage and emitter of described triode Q1.
In an embodiment, described city electric control module also comprises filter capacitor C3 therein, and described filter capacitor C3 is parallel between the collector electrode and emitter of described triode Q1.
In an embodiment, described power storage module comprises storage battery BT1 therein, and the positive pole of described storage battery BT1 is electrically connected with the input of described electric power storage control module, the minus earth of described storage battery BT1.
In an embodiment, described electric power storage control module comprises divider resistance R6, divider resistance R7, filter capacitor C4, pressurizer U2, diode D5 and relay K 1 therein;
Described divider resistance R6 and described divider resistance R7 are series between the input and earth terminal of described reversal connection module, the points of common connection of described divider resistance R6 and described divider resistance R7 is electrically connected with the test side of described pressurizer U2, the output of described pressurizer U2 is electrically connected with the positive pole of described diode D5, and the negative pole of described diode D5 is electrically connected with the input of described reversal connection module; Described filter capacitor C4 is parallel between the test side and earth terminal of described pressurizer U2; The electronic coil of described relay K 1 is parallel to the two ends of described diode D5, and normal open switch one end of described relay K 1 is electrically connected with the positive pole of described power storage module, and the other end is electrically connected with the input of described reversal connection module.
In an embodiment, described reversal connection module comprises diode D1 therein, and the positive pole of described diode D1 is electrically connected with the input of described city electric control module, and the negative pole of described diode D1 is electrically connected with the output of described electric power storage control module.
In an embodiment, described switch module comprises field effect transistor Q3 and divider resistance R5 therein;
Described divider resistance R5 one end is electrically connected with the grid of described field effect transistor Q3, and described divider resistance R5 one end is electrically connected with the source electrode of described field effect transistor Q3;
The grid of described field effect transistor Q3 is electrically connected with the output of described city electric control module, the described field effect transistor Q3 equal load electrical connection that drains, and the source electrode of described field effect transistor Q3 is electrically connected with the output of described electric power storage control module.
Above-mentioned light fixture emergency supply circuit is by city's electric control module and electric power storage control module control civil power and power storage module powering mode between the two.Particularly, in the time of civil power normal power supply, city's electric control module control switch module disconnects being connected between power storage module and load, by civil power directly to load supplying.In the time that civil power is stopped power supply, city's electric control module control switch module is communicated with power storage module and load, and by electric power storage control module control power storage module to load supplying, by reversal connection module cut-off power storage module, city's electric control module is powered simultaneously, what make that power storage module can continue is load supplying.Thereby realize the automatic switchover of civil power and power storage module powering mode.
Brief description of the drawings
Fig. 1 is the module map of light fixture emergency supply circuit;
Fig. 2 is the schematic diagram of light fixture emergency supply circuit.
Embodiment
As shown in Figure 1, be the module map of light fixture emergency supply circuit.
A kind of light fixture emergency supply circuit, for when civil power is stopped power supply, controls power storage module 109 to light fixture power supply, comprises city's electric control module 101, electric power storage control module 103, reversal connection module 107 and switch module 105.
The input of described city electric control module 101 is for being electrically connected with mains supply, the output of described city electric control module 101 is electrically connected with the control end of described switch module 105, the earth terminal ground connection of described city electric control module 101, a point pressure side for described city electric control module 101 is electrically connected with the input of described reversal connection module 107, and the output of described reversal connection module 107 is electrically connected with the input of described city electric control module 101.
The input of described electric power storage control module 103 is for being electrically connected with the positive pole of described power storage module 109, the output of described electric power storage control module 103 is electrically connected with the input of described reversal connection module 107 and the input of described switch module 105 respectively, the earth terminal ground connection of described electric power storage control module 103, the output of described switch module 105 is used for connecting load.
City's electric control module 101, in having civil power input, controls electric power storage control module 103 and be communicated with power storage module 109 and switch module 105, and control switch module 105 is ended.Thereby, between power storage module 109 and load, be not communicated with.Power storage module 109 is not to load supplying.Civil power powers to the load.
In the time that civil power is stopped power supply, city's electric control module 101 is controlled electric power storage control module 103 and is communicated with power storage module 109 and switch module 105, and 105 conductings of control switch module.Thereby, between power storage module 109 and load, be communicated with.Power storage module 109 is to load supplying.
Electric power storage control module 103 is in the time that civil power is normally inputted, the voltage turn-on of exporting by city's electric control module 101.In the time that civil power stops inputting, for conducting of electric power storage control module 103, and power storage module 109 is being powered to electric power storage control module 103 always, thereby, after 103 conductings of electric power storage control module, be not subject to the impact of civil power and conducting always, and then reach the conducting of controlling power storage module 109 and switch module 105.
Switch module 105 is by being communicated with and cut-off between self conducting and cut-off control power storage module 109 and load, and concrete, when switch module 105 conducting, power storage module 109 is communicated with load, and power storage module 109 is to load supplying; When switch module 105 ends, between power storage module 109 and load, end, power storage module 109 is not to load supplying.
Reversal connection module 107 is for stopping power supply at civil power, and cut-off power storage module 109Dui city electric control module 101 is powered.While having voltage input due to city's electric control module 101, meeting cutoff switch module 105, cause electric power storage to be connected with load, and the voltage of power storage module 109 cannot make load normally work after the dividing potential drop of city's electric control module 101, thereby cause whole light fixture emergency supply circuit normally to work.
Wherein, described city electric control module 101 is in the time that mains supply is normal, for controlling the conducting between described electric power storage control module 103 and described power storage module 109, and control described switch module 105 and end, mains supply powers to the load, and described switch module 105 disconnects being connected between described power storage module 109 and load.
In the time that mains supply has a power failure, described city electric control module 101 is controlled described switch module 105 conductings, described power storage module 109 is connected with described switch module 105 by described electric power storage control module 103, described power storage module 109 powers to the load by described switch module 105, and described reversal connection module 107 is powered to described city electric control module 101 for ending described power storage module 109.
Light fixture emergency supply circuit also comprises the power module 111 being electrically connected with city's electric control module 101, and described power module 111 is for converting civil power to described city electric control module 101 and the required direct voltage of load.
Incorporated by reference to Fig. 2.
Power module 111 comprises transformer T, rectifier bridge BD and filter capacitor C1, described transformer T is electrically connected successively with described rectifier bridge BD, described filter capacitor C1 is in parallel with the output of described rectifier bridge BD, and the positive pole of described filter capacitor C1 is electrically connected with the input of described city electric control module 101 with the points of common connection of described rectifier bridge BD.
City's electric control module 101 comprises divider resistance R1, divider resistance R2, divider resistance R3, divider resistance R4, triode Q1 and triode Q2.
Described divider resistance R1 and described divider resistance R2 are series between mains supply and earth terminal, and the points of common connection of described divider resistance R1 and described divider resistance R2 is electrically connected with the base stage of described triode Q1.
Described divider resistance R3 and described divider resistance R4 are series between the input and earth terminal of described reversal connection module 107, the points of common connection of described divider resistance R3 and described divider resistance R4 is electrically connected with the collector electrode of described triode Q1 and the base stage of described triode Q2 respectively, the equal ground connection of emitter of the emitter of described triode Q1 and described triode Q2, the collector electrode of described triode Q2 is electrically connected with the control end of described switch module 105 respectively.
City's electric control module 101 also comprises filter capacitor C2, and described filter capacitor C2 is parallel between the base stage and emitter of described triode Q1.
City's electric control module 101 also comprises filter capacitor C3, and described filter capacitor C3 is parallel between the collector electrode and emitter of described triode Q1.
Power storage module 109 comprises storage battery BT1, and the positive pole of described storage battery BT1 is electrically connected with the input of described electric power storage control module 103, the minus earth of described storage battery BT1.
Electric power storage control module 103 comprises divider resistance R6, divider resistance R7, filter capacitor C4, pressurizer U2, diode D5 and relay K 1.
Described divider resistance R6 and described divider resistance R7 are series between the input and earth terminal of described reversal connection module 107, the points of common connection of described divider resistance R6 and described divider resistance R7 is electrically connected with the test side of described pressurizer U2, the output of described pressurizer U2 is electrically connected with the positive pole of described diode D5, and the negative pole of described diode D5 is electrically connected with the input of described reversal connection module 107; Described filter capacitor C4 is parallel between the test side and earth terminal of described pressurizer U2; The electronic coil of described relay K 1 is parallel to the two ends of described diode D5, and normal open switch one end of described relay K 1 is electrically connected with the positive pole of described power storage module 109, and the other end is electrically connected with the input of described reversal connection module 107.
Reversal connection module 107 comprises diode D1, and the positive pole of described diode D1 is electrically connected with the input of described city electric control module 101, and the negative pole of described diode D1 is electrically connected with the output of described electric power storage control module 103.
Switch module 105 comprises field effect transistor Q3 and divider resistance R5.
Described divider resistance R5 one end is electrically connected with the grid of described field effect transistor Q3, and described divider resistance R5 one end is electrically connected with the source electrode of described field effect transistor Q3.The grid of described field effect transistor Q3 is electrically connected with the output of described city electric control module 101, the described field effect transistor Q3 equal load electrical connection that drains, and the source electrode of described field effect transistor Q3 is electrically connected with the output of described electric power storage control module 103.Field effect transistor Q3 is the field effect transistor of P raceway groove.
Based on above-mentioned all embodiment, the operation principle of light fixture emergency supply circuit is as follows:
Civil power via transformer T and the rectification of rectifier bridge BD transformation after the direct voltage of amount of exports sizing, filter capacitor C1 carries out filtering to direct voltage simultaneously, excludes the interference signal.Divider resistance R1 and divider resistance R2 carry out dividing potential drop to direct voltage, direct voltage output after dividing potential drop is to the base stage of triode Q1, triode Q1 conducting, thereby the collector voltage of triode Q1 is low level, and the collector electrode of triode Q1 is connected with the base stage of triode Q2, triode Q2 cut-off.After triode Q2 cut-off, very high level of the current collection of triode Q2.The collector electrode of triode Q2 is connected with the grid of field effect transistor Q3, thereby the field effect transistor Q3 of P raceway groove cut-off, and battery BT1 cannot be connected with load, thereby load is by mains-supplied.
In the time that civil power is stopped power supply, power module 111 Non voltage outputs, thereby triode Q1 cut-off.Battery BT1 is connected with the base stage of triode Q2 by divider resistance R3, triode Q2 conducting, and very low level of the current collection of triode Q2, thereby the grid of field effect transistor Q3 is also low level, field effect transistor Q3 conducting.Battery BT1 is communicated with load by field effect transistor Q3, and battery BT1 is to load supplying.
Civil power is in the time of normal work, and the direct voltage that power module 111 is exported charges to battery BT1 by diode D1.
Above-mentioned light fixture emergency supply circuit is controlled civil power and power storage module 109 powering mode between the two by city's electric control module 101 and electric power storage control module 103.Particularly, in the time of civil power normal power supply, electric control module 101 control switch modules 105 in city's disconnect being connected between power storage module 109 and load, by civil power directly to load supplying.In the time that civil power is stopped power supply, electric control module 101 control switch modules 105 in city's are communicated with power storage module 109 and load, and control power storage module 109 to load supplying by electric power storage control module 103, simultaneously end power storage module 109Dui city electric control module 101 by reversal connection module 107 and powers, what make that power storage module 109 can continue is load supplying.Thereby realize the automatic switchover of civil power and power storage module 109 powering modes.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a light fixture emergency supply circuit, for when civil power is stopped power supply, controls power storage module light fixture is powered, and it is characterized in that, comprises city's electric control module, electric power storage control module, reversal connection module and switch module;
The input of described city electric control module is for being electrically connected with mains supply, the output of described city electric control module is electrically connected with the control end of described switch module, the earth terminal ground connection of described city electric control module, a point pressure side for described city electric control module is electrically connected with the input of described reversal connection module, and the output of described reversal connection module is electrically connected with the input of described city electric control module;
The input of described electric power storage control module is for being electrically connected with the positive pole of described power storage module, the output of described electric power storage control module is electrically connected with the input of described reversal connection module and the input of described switch module respectively, the earth terminal ground connection of described electric power storage control module, the output of described switch module is used for connecting load;
Wherein, described city electric control module, in the time that mains supply is normal, for controlling the conducting between described electric power storage control module and described power storage module, and is controlled described switch module cut-off, mains supply powers to the load, and described switch module disconnects being connected between described power storage module and load;
In the time that mains supply has a power failure, switch module conducting described in the electric control module control of described city, described power storage module is connected with described switch module by described electric power storage control module, described power storage module powers to the load by described switch module, and described reversal connection module is used for ending described power storage module and powers to described city electric control module.
2. light fixture emergency supply circuit according to claim 1, is characterized in that, also comprises the power module being electrically connected with city's electric control module, and described power module is for converting civil power to described city electric control module and the required direct voltage of load.
3. light fixture emergency supply circuit according to claim 2, it is characterized in that, described power module comprises transformer T, rectifier bridge BD and filter capacitor C1, described transformer T is electrically connected successively with described rectifier bridge BD, described filter capacitor C1 is in parallel with the output of described rectifier bridge BD, and the positive pole of described filter capacitor C1 is electrically connected with the input of described city electric control module with the points of common connection of described rectifier bridge BD.
4. light fixture emergency supply circuit according to claim 1, is characterized in that, described city electric control module comprises divider resistance R1, divider resistance R2, divider resistance R3, divider resistance R4, triode Q1 and triode Q2;
Described divider resistance R1 and described divider resistance R2 are series between mains supply and earth terminal, and the points of common connection of described divider resistance R1 and described divider resistance R2 is electrically connected with the base stage of described triode Q1;
Described divider resistance R3 and described divider resistance R4 are series between the input and earth terminal of described reversal connection module, the points of common connection of described divider resistance R3 and described divider resistance R4 is electrically connected with the collector electrode of described triode Q1 and the base stage of described triode Q2 respectively, the equal ground connection of emitter of the emitter of described triode Q1 and described triode Q2, the collector electrode of described triode Q2 is electrically connected with control end and the load of described switch module respectively.
5. light fixture emergency supply circuit according to claim 4, is characterized in that, described city electric control module also comprises filter capacitor C2, and described filter capacitor C2 is parallel between the base stage and emitter of described triode Q1.
6. light fixture emergency supply circuit according to claim 4, is characterized in that, described city electric control module also comprises filter capacitor C3, and described filter capacitor C3 is parallel between the collector electrode and emitter of described triode Q1.
7. light fixture emergency supply circuit according to claim 1, is characterized in that, described power storage module comprises storage battery BT1, and the positive pole of described storage battery BT1 is electrically connected with the input of described electric power storage control module, the minus earth of described storage battery BT1.
8. light fixture emergency supply circuit according to claim 1, is characterized in that, described electric power storage control module comprises divider resistance R6, divider resistance R7, filter capacitor C4, pressurizer U2, diode D5 and relay K 1;
Described divider resistance R6 and described divider resistance R7 are series between the input and earth terminal of described reversal connection module, the points of common connection of described divider resistance R6 and described divider resistance R7 is electrically connected with the test side of described pressurizer U2, the output of described pressurizer U2 is electrically connected with the positive pole of described diode D5, and the negative pole of described diode D5 is electrically connected with the input of described reversal connection module; Described filter capacitor C4 is parallel between the test side and earth terminal of described pressurizer U2; The electronic coil of described relay K 1 is parallel to the two ends of described diode D5, and normal open switch one end of described relay K 1 is electrically connected with the positive pole of described power storage module, and the other end is electrically connected with the input of described reversal connection module.
9. light fixture emergency supply circuit according to claim 1, it is characterized in that, described reversal connection module comprises diode D1, and the positive pole of described diode D1 is electrically connected with the input of described city electric control module, and the negative pole of described diode D1 is electrically connected with the output of described electric power storage control module.
10. light fixture emergency supply circuit according to claim 1, is characterized in that, described switch module comprises field effect transistor Q3 and divider resistance R5;
Described divider resistance R5 one end is electrically connected with the grid of described field effect transistor Q3, and described divider resistance R5 one end is electrically connected with the source electrode of described field effect transistor Q3;
The grid of described field effect transistor Q3 is electrically connected with the output of described city electric control module, the described field effect transistor Q3 equal load electrical connection that drains, and the source electrode of described field effect transistor Q3 is electrically connected with the output of described electric power storage control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092512.0A CN104066222B (en) | 2013-03-21 | 2013-03-21 | Light fixture emergency supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092512.0A CN104066222B (en) | 2013-03-21 | 2013-03-21 | Light fixture emergency supply circuit |
Publications (2)
| Publication Number | Publication Date |
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| CN104066222A true CN104066222A (en) | 2014-09-24 |
| CN104066222B CN104066222B (en) | 2016-09-07 |
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| CN201310092512.0A Expired - Fee Related CN104066222B (en) | 2013-03-21 | 2013-03-21 | Light fixture emergency supply circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129663A1 (en) * | 2019-12-24 | 2021-07-01 | 中兴通讯股份有限公司 | Power supply circuit and power source device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505566A (en) * | 2009-03-24 | 2009-08-12 | 马相国 | Control apparatus for LED tri-control lamp |
| CN101742783A (en) * | 2010-01-21 | 2010-06-16 | 海洋王照明科技股份有限公司 | High power LED drive circuit with emergency function |
| CN101765274A (en) * | 2010-01-29 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED lamp and drive circuit |
| CN101932153A (en) * | 2009-06-24 | 2010-12-29 | 海洋王照明科技股份有限公司 | LED emergency light circuit supplied by wide voltage power supply |
| CN201813358U (en) * | 2010-10-22 | 2011-04-27 | 重庆恩林电器有限公司 | Electronic switch with fire protection urgent control function |
-
2013
- 2013-03-21 CN CN201310092512.0A patent/CN104066222B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505566A (en) * | 2009-03-24 | 2009-08-12 | 马相国 | Control apparatus for LED tri-control lamp |
| CN101932153A (en) * | 2009-06-24 | 2010-12-29 | 海洋王照明科技股份有限公司 | LED emergency light circuit supplied by wide voltage power supply |
| CN101742783A (en) * | 2010-01-21 | 2010-06-16 | 海洋王照明科技股份有限公司 | High power LED drive circuit with emergency function |
| CN101765274A (en) * | 2010-01-29 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED lamp and drive circuit |
| CN201813358U (en) * | 2010-10-22 | 2011-04-27 | 重庆恩林电器有限公司 | Electronic switch with fire protection urgent control function |
Non-Patent Citations (1)
| Title |
|---|
| 小兰: "应急灯照明电路", 《电子发烧友网》, 25 October 2011 (2011-10-25), pages 1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129663A1 (en) * | 2019-12-24 | 2021-07-01 | 中兴通讯股份有限公司 | Power supply circuit and power source device |
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| CN104066222B (en) | 2016-09-07 |
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