CN204334314U - A kind of alternating expression APFC circuit - Google Patents
A kind of alternating expression APFC circuit Download PDFInfo
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- CN204334314U CN204334314U CN201520035361.XU CN201520035361U CN204334314U CN 204334314 U CN204334314 U CN 204334314U CN 201520035361 U CN201520035361 U CN 201520035361U CN 204334314 U CN204334314 U CN 204334314U
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- resistance
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- apfc
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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
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a kind of alternating expression APFC circuit, comprise input circuit, input circuit is connected in series with processor by auxiliary circuit one, the AC/DC transducer that processor comprises APFC constant-current controller and connects with APFC constant-current controller, processor is connected with drive circuit one parallel with one another, drive circuit two and auxiliary circuit two, drive circuit one is identical with the structure of drive circuit two, and the output of processor is in series with output circuit by auxiliary circuit three, the input of processor is in series with the identical auxiliary circuit four with auxiliary circuit three.The beneficial effects of the utility model are: this apparatus structure is simple, easy realization, the AC signal of frequency conversion is changed the direct current signal of frequency stabilization into by APFC constant-current controller and AC/DC transducer, control LED that can be more stable, reduce the interference of EMC, improve the service efficiency of LED, be conducive to the propagation and employment in market.
Description
Technical field
The utility model relates to a kind of Active Power Factor Correction APFC circuit, specifically, relates to a kind of alternating expression APFC circuit.
Background technology
LED(light-emitting diode) light source has the advantages such as environmental protection, energy-conservation, long service life, driving voltage are low; be acknowledged as the lighting source of 21 century optimum future; and it is also more and more extensive in the use in plant illumination field; but; the control circuit of existing control LED usually can because of EMC(Electro Magnetic Compatibility) problem disturbed and affect the Mass Control of LED; make LED often can occur the phenomenon of flicker, have a strong impact on result of use and the life-span of LED.
For the problem in correlation technique, at present effective solution is not yet proposed.
Utility model content
The purpose of this utility model is to provide a kind of alternating expression APFC circuit, to overcome currently available technology above shortcomings.
The purpose of this utility model is achieved through the following technical solutions:
A kind of alternating expression APFC circuit, comprise input circuit, described input circuit is connected in series with processor by auxiliary circuit one, the AC/DC transducer that described processor comprises APFC constant-current controller and connects with APFC constant-current controller, described processor is connected with drive circuit one parallel with one another, drive circuit two and auxiliary circuit two, described drive circuit one is identical with the structure of drive circuit two, and the output of described processor is in series with output circuit by auxiliary circuit three, the input of described processor is in series with the identical auxiliary circuit four with auxiliary circuit three.
Further, described auxiliary circuit one comprises the first resistance be connected with input circuit, described first resistance successively by series connection the 3rd resistance and the 4th resistance be connected with single order high pass circuit, the other end of described single order high pass circuit is connected with processor, and described processor is connected with the second electric capacity parallel with one another and the 7th resistance, three capacity earth of described 7th resistance by connecting, the other end also ground connection of described second electric capacity.
Further, described auxiliary circuit two comprises the 8th resistance and the 9th resistance that are in parallel with processor, and described 8th resistance is connected power supply with the other end of the 9th resistance, and the other end of described processor and the 8th resistance and the 9th resistance is all by the 5th capacity earth.
Further, described drive circuit one comprises the tenth resistance parallel with one another and the 11 resistance that are connected with processor, described tenth resistant series diode, described 11 resistance is connected with the base stage of triode, described diode is connected with the emitter of triode, and be connected in parallel to the 12 resistance and Schottky diode between the emitter of described triode and collector electrode, and the equal ground connection of the other end of the collector electrode of described triode and the 12 resistance and Schottky diode.
Further, described auxiliary circuit three comprises the single order high pass circuit be connected with processor, and described single order high pass circuit is connected with output circuit with the 15 resistance by the 13 resistance, the 14 resistance of series connection successively.
Further, described single order high pass circuit comprises the 5th resistance of connection parallel with one another, the 6th resistance and the first electric capacity, and the other end ground connection of described 5th resistance, the 6th resistance and the first electric capacity.
Further, the input of described processor and output are connected to the 4th electric capacity and the first filter capacitor, the second filter capacitor and the 3rd filter capacitor, wherein, the equal ground connection of the other end of described 4th electric capacity and the first filter capacitor, the second filter capacitor and the 3rd filter capacitor.
Further, described processor is in series with the second resistance, and described second resistance is connected to ground by the 5th electric capacity of series connection.
Preferably, described triode is PNP pipe.
The beneficial effects of the utility model are: this apparatus structure is simple, easy realization, the AC signal of frequency conversion is changed the direct current signal of frequency stabilization into by APFC constant-current controller and AC/DC transducer, control LED that can be more stable, reduce the interference of EMC, improve the service efficiency of LED, and extend the useful life of LED, be conducive to the propagation and employment in market.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the principle schematic of a kind of alternating expression APFC circuit according to the utility model embodiment.
In figure:
1, auxiliary circuit one; 2, processor; 3, drive circuit one; 4, drive circuit two; 5, auxiliary circuit two; 6, auxiliary circuit three; 7, auxiliary circuit four; 8, the first resistance; 9, the second resistance; 10, the 3rd resistance; 11, the 4th resistance; 12, the 5th resistance; 13, the 6th resistance; 14, the first electric capacity; 15, the 7th resistance; 16, the second electric capacity; 17, the 3rd electric capacity; 18, the 4th electric capacity; 19, the 8th resistance; 20, the 9th resistance; 21, the first filter capacitor; 22, the second filter capacitor; 23, the 3rd filter capacitor; 24, the tenth resistance; 25, the 11 resistance; 26, diode; 27, triode; 28, the 12 resistance; 29, Schottky diode; 30, the 13 resistance; 31, the 14 resistance; 32, the 15 resistance; 33, the 5th electric capacity.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of the utility model protection.
As shown in Figure 1, a kind of alternating expression APFC circuit according to the utility model embodiment, comprise input circuit, described input circuit is connected in series with processor 2 by auxiliary circuit 1, the AC/DC transducer that described processor 2 comprises APFC constant-current controller and connects with APFC constant-current controller, described processor 2 is connected with drive circuit 1 parallel with one another, drive circuit 24 and auxiliary circuit 25, described drive circuit 1 is identical with the structure of drive circuit 24, and the output of described processor 2 is in series with output circuit by auxiliary circuit 36, the input of described processor 2 is in series with the identical auxiliary circuit 47 with auxiliary circuit 36.
Described auxiliary circuit 1 comprises the first resistance 8 be connected with input circuit, described first resistance 8 successively by series connection the 3rd resistance 10 and the 4th resistance 11 be connected with single order high pass circuit, the other end of described single order high pass circuit is connected with processor 2, and described processor 2 is connected with the second electric capacity 16 parallel with one another and the 7th resistance 15, three electric capacity 17 ground connection of described 7th resistance 15 by connecting, the other end also ground connection of described second electric capacity 16.
Described auxiliary circuit 25 comprises the 8th resistance 19 and the 9th resistance 20 that are in parallel with processor 2, described 8th resistance 19 is connected power supply with the other end of the 9th resistance 20, and the other end of described processor 2 and the 8th resistance 19 and the 9th resistance 20 is all by the 5th electric capacity 33 ground connection.
Described drive circuit 1 comprises the tenth resistance the 24 and the 11 resistance 25 parallel with one another be connected with processor 2, described tenth resistance 24 series diode 26, described 11 resistance 25 is connected with the base stage of triode 27, described diode 26 is connected with the emitter of triode 27, and be connected in parallel to the 12 resistance 28 and Schottky diode 29 between the emitter of described triode 27 and collector electrode, and the equal ground connection of the other end of the collector electrode of described triode 27 and the 12 resistance 28 and Schottky diode 29.
Described auxiliary circuit 36 comprises the single order high pass circuit be connected with processor 2, and described single order high pass circuit is connected with output circuit with the 15 resistance 32 by the 13 resistance the 30, the 14 resistance 31 of series connection successively.
Described single order high pass circuit comprises the 5th resistance 12, the 6th resistance 13 and first electric capacity 14 of connection parallel with one another, and the other end ground connection of described 5th resistance 12, the 6th resistance 13 and the first electric capacity 14.
The input of described processor 2 and output are connected to the 4th electric capacity 18 and the first filter capacitor 21, second filter capacitor 22 and the 3rd filter capacitor 23, wherein, the equal ground connection of the other end of described 4th electric capacity 18 and the first filter capacitor 21, second filter capacitor 22 and the 3rd filter capacitor 23; Described processor 2 is in series with the second resistance 9, and described second resistance 9 is connected to ground by the 5th electric capacity 33 of series connection; Effectively by the clutter deletion in signal, propagation and the Mass Control of signal can be ensure that by the 4th electric capacity 18 that arranges and the first filter capacitor 21, second filter capacitor 22 and the 3rd filter capacitor 23.
Described triode 27 is PNP pipe.
During embody rule, by the AC signal of input circuit input frequency conversion, the AC signal of frequency conversion changes stable direct current signal into by APFC constant-current controller and AC/DC transducer, then stable direct current signal carries out driving work alternately by drive circuit 1 and drive circuit 24, effectively can ensure the normal operation of driving work, stable control LED glittering, and decrease the effect of EMC electromagnetic interference in circuit, add the glittering efficiency of LED, wherein, auxiliary circuit 1 and auxiliary circuit 25 effectively can ensure the steady operation of circuit, described auxiliary circuit 35 can determine the height of output voltage, by arranging the prevention of the resistance on auxiliary circuit 35, effectively can reach the numerical value of expectation by regulation output voltage.
In sum, by means of technique scheme of the present utility model, this apparatus structure is simple, easily realizes, changes the AC signal of frequency conversion the direct current signal of frequency stabilization into by APFC constant-current controller and AC/DC transducer, control LED that can be more stable, reduce the interference of EMC, improve the service efficiency of LED, and extend the useful life of LED, save use cost, be conducive to the propagation and employment in market.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (9)
1. an alternating expression APFC circuit, it is characterized in that, comprise input circuit, described input circuit is connected in series with processor (2) by auxiliary circuit one (1), the AC/DC transducer that described processor (2) comprises APFC constant-current controller and connects with APFC constant-current controller, described processor (2) is connected with drive circuit one (3) parallel with one another, drive circuit two (4) and auxiliary circuit two (5), and the output of described processor (2) is in series with output circuit by auxiliary circuit three (6), the input of described processor (2) is in series with the auxiliary circuit four (7) matched with auxiliary circuit three (6).
2. alternating expression APFC circuit according to claim 1, it is characterized in that, described auxiliary circuit one (1) comprises the first resistance (8) be connected with input circuit, described first resistance (8) successively by series connection the 3rd resistance (10) and the 4th resistance (11) be connected with single order high pass circuit, the other end of described single order high pass circuit is connected with processor (2), and described processor (2) is connected with the second electric capacity (16) parallel with one another and the 7th resistance (15), described 7th resistance (15) is by the 3rd electric capacity (17) ground connection of series connection, the other end also ground connection of described second electric capacity (16).
3. alternating expression APFC circuit according to claim 1, it is characterized in that, described auxiliary circuit two (5) comprises the 8th resistance (19) and the 9th resistance (20) that are in parallel with processor (2), described 8th resistance (19) is connected power supply with the other end of the 9th resistance (20), and the other end of described processor (2) and the 8th resistance (19) and the 9th resistance (20) is all by the 5th electric capacity (33) ground connection.
4. alternating expression APFC circuit according to claim 1, it is characterized in that, described drive circuit one (3) and described drive circuit two (4) include the tenth resistance (24) parallel with one another and the 11 resistance (25) that are connected with processor (2), described tenth resistance (24) series diode (26), described 11 resistance (25) is connected with the base stage of triode (27), described diode (26) is connected with the emitter of triode (27), and be connected in parallel to the 12 resistance (28) and Schottky diode (29) between the emitter of described triode (27) and collector electrode, and the equal ground connection of the other end of the collector electrode of described triode (27) and the 12 resistance (28) and Schottky diode (29).
5. alternating expression APFC circuit according to claim 2, it is characterized in that, described auxiliary circuit three (6) includes with described auxiliary circuit four (7) the single order high pass circuit be connected with processor (2), and described single order high pass circuit is connected with output circuit with the 15 resistance (32) by the 13 resistance (30), the 14 resistance (31) of series connection successively.
6. alternating expression APFC circuit according to claim 5, it is characterized in that, described single order high pass circuit comprises the 5th resistance (12) of connection parallel with one another, the 6th resistance (13) and the first electric capacity (14), and the other end ground connection of described 5th resistance (12), the 6th resistance (13) and the first electric capacity (14).
7. alternating expression APFC circuit as claimed in any of claims 1 to 6, it is characterized in that, the input of described processor (2) and output are connected to the 4th electric capacity (18) and the first filter capacitor (21), the second filter capacitor (22) and the 3rd filter capacitor (23), wherein, the equal ground connection of the other end of described 4th electric capacity (18) and the first filter capacitor (21), the second filter capacitor (22) and the 3rd filter capacitor (23).
8. alternating expression APFC circuit as claimed in any of claims 1 to 6, is characterized in that, described processor (2) is in series with the second resistance (9), and described second resistance (9) is connected to ground by the 5th electric capacity (33) of series connection.
9. alternating expression APFC circuit according to claim 4, is characterized in that, described triode (27) is PNP pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520035361.XU CN204334314U (en) | 2015-01-19 | 2015-01-19 | A kind of alternating expression APFC circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520035361.XU CN204334314U (en) | 2015-01-19 | 2015-01-19 | A kind of alternating expression APFC circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204334314U true CN204334314U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520035361.XU Active CN204334314U (en) | 2015-01-19 | 2015-01-19 | A kind of alternating expression APFC circuit |
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| Country | Link |
|---|---|
| CN (1) | CN204334314U (en) |
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2015
- 2015-01-19 CN CN201520035361.XU patent/CN204334314U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |