CN216960257U - Defogging circuit and LED driving power supply - Google Patents
Defogging circuit and LED driving power supply Download PDFInfo
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- CN216960257U CN216960257U CN202220236557.5U CN202220236557U CN216960257U CN 216960257 U CN216960257 U CN 216960257U CN 202220236557 U CN202220236557 U CN 202220236557U CN 216960257 U CN216960257 U CN 216960257U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a defoggable circuit and an LED driving power supply, wherein the defoggable circuit is used for being connected with a defogging module and comprises a control module and a defogging control conversion circuit, and the defogging control conversion circuit is respectively and electrically connected with the control module and the defogging module; the control module is used for outputting a control signal to the demisting control conversion circuit; the defogging control conversion circuit is used for converting an input level into a constant output level to start the defogging module; the LED driving power supply comprises a driving power supply main circuit and the defogging circuit. Increase the defogging function in the mirror illumination, solved water smoke and attached to the mirror surface, made the fuzzy of mirror become, influenced illuminating effect's problem.
Description
Technical Field
The utility model relates to the technical field of household lighting driving power supplies, in particular to a defogging circuit for a mirror lamp and an LED driving power supply.
Background
The mirror is a necessary object in daily life, particularly, people who love beauty can carry the mirror with the mirror, and professional cosmetic staff can put the light supplement lamp around the mirror when making up in front of the mirror to supplement light to the mirror surface so as to draw beautiful makeup. Along with the development of LED technique, install the LED mirror of LED lamp on the mirror with its advantage that can 360 degrees provide the light source, compare traditional mirror and have positive light filling and better definition, win the favor in market rapidly, the wide application is in places such as hotel, house and market.
However, when the LED mirror is in a bathroom, which is a humid environment, water mist is attached to the surface of the mirror, so that the mirror becomes blurred, the lighting effect and the sight of a user are affected, and the user experience is seriously damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a defogging circuit and an LED driving power supply, which are used for adding a defogging function while a mirror illuminates, and solving the problem that the illumination effect is influenced by the fact that water mist is attached to the surface of the mirror and becomes blurred.
The technical purpose of the utility model is realized by the following technical scheme: a defogging circuit is used for being connected with a defogging module and comprises a control module and a defogging control conversion circuit, wherein the defogging control conversion circuit is respectively and electrically connected with the control module and the defogging module; the control module is used for outputting a control level to the defogging control conversion circuit; the defogging control conversion circuit is used for converting the control level into a constant output level to start the defogging module.
The utility model is further provided with: the demisting control conversion circuit comprises a converter U4, a triode Q4, a bidirectional thyristor Q5, a capacitor C100, a resistor R29, a resistor R80, a resistor R81, a resistor R82, a resistor R100 and a resistor R102; the pin 1 of the converter U4 is connected with a resistor R80, the other end of the resistor R80 is connected with direct-current voltage, the base electrode of the triode Q4 is connected with the output end of the control module after being connected with the resistor R82 in series, the emitter electrode of the triode is connected with the resistor R81, meanwhile, the signal is grounded, and the other end of the resistor R81 is connected with the base electrode of the triode Q4 in parallel; the collector of the triode Q4 is connected with the pin 2 of the converter U4, the control electrode of the triac Q5 is connected with the pin 4 of the converter U4, the main electrode 1 of the triac Q5 is respectively connected with the defogging module and the resistor R102, the main electrode 2 of the triac Q5 is connected with the alternating current end, the resistor R29 is connected in parallel between the control electrode of the triac Q5 and the main electrode 2, the other end of the resistor R102 is connected with the pin 6 of the converter U4, the resistor R100 is connected in series with the capacitor C100 and then connected in parallel between the alternating current end and the defogging module.
The utility model is further configured as follows: and the power supply input of the defogging module is alternating current.
The utility model is further configured as follows: and the input voltage of the control module chip model STM32F101R6 is 5V direct-current voltage.
The utility model is further provided with: the control module outputs high level or low level.
The utility model is further provided with: the converter U4 is a bidirectional thyristor output type photoelectric coupler and is used for isolating the control module and triggering the bidirectional thyristor Q5.
The LED driving power supply comprises a driving power supply main circuit and the defogging circuit.
The driving power supply main circuit comprises a rectifying and filtering circuit, a high-frequency converter, a constant-voltage stabilizing circuit and an LED output circuit; the input end of the rectification filter circuit is connected with alternating voltage, and the output end of the rectification filter circuit is connected with the high-frequency converter; the output of the high-frequency converter is connected with the constant-voltage stabilizing circuit; the constant voltage stabilizing circuit is connected with the LED output circuit and the defogging circuit and provides stable 5V direct current voltage for the LED output circuit and the defogging circuit.
In conclusion, the defogging circuit and the LED driving power supply are provided, the defogging function is added while the mirror illuminates, and the problem that the illumination effect is affected due to the fact that water mist is attached to the surface of the mirror and becomes blurred is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain related drawings without creative efforts.
FIG. 1 is a block diagram of a defogging circuit according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a defogging circuit according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of an LED driving power supply including a defogging circuit according to an embodiment of the present invention.
In the figure: 100-control module, 200-demisting control conversion circuit and 300-demisting module.
Detailed Description
The utility model is further illustrated by the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures.
The utility model is further described with reference to the following figures and detailed description.
As shown in fig. 1, a defogging circuit for connecting a defogging module 300 includes a control module 100 and a defogging control conversion circuit 200, wherein the defogging control conversion circuit 200 is electrically connected to the control module 100 and the defogging module 300, respectively; the control module 100 is configured to output a control level to the defogging control conversion circuit 200; the defogging control conversion circuit 200 is used to convert the input control level into a constant output level for activating the defogging module 300.
As shown in fig. 2, the defogging control conversion circuit 200 in this embodiment includes a converter U4, a transistor Q4, a triac Q5, a capacitor C100, a resistor R29, a resistor R80, a resistor R81, a resistor R82, a resistor R100, and a resistor R102; pin 1 of the converter U4 is connected with a resistor R80, the other end of the resistor R80 is connected with direct-current voltage, the base electrode of the triode Q4 is connected with the output end of the control module 100 after being connected with the resistor R82 in series, the emitter electrode of the triode is connected with the resistor R81, meanwhile, the signal is grounded, and the other end of the resistor R81 is connected with the base electrode of the triode Q4 in parallel; the collector of the triode Q4 is connected with the pin 2 of the converter U4, the control electrode of the triac Q5 is connected with the pin 4 of the converter U4, the main electrode 1 of the triac Q5 is respectively connected with the defogging module 300 and the resistor R102, the main electrode 2 of the triac Q5 is connected with the alternating current end, the resistor R29 is connected in parallel between the control electrode of the triac Q5 and the main electrode 2, the other end of the resistor R102 is connected with the pin 6 of the converter U4, and the resistor R100 is connected in series with the capacitor C100 and then connected in parallel between the alternating current end and the defogging module 300.
The embodiment is further provided with: the power input to the defogging module 300 in this embodiment is current.
The embodiment is further provided with: in this embodiment, the control module 100 has a chip model STM32F101R6, and the input voltage is 5V dc voltage.
The embodiment is further provided with: in this embodiment, the converter U4 is a triac output type optocoupler used to isolate the control module and trigger the triac Q5.
The basic working principle of the defogging circuit of the utility model is as follows: when the control module 100 outputs a low level, the triode Q4 outputs a low level, the pin 2 at the input end of the converter U4 inputs a low level, the input loop of the converter U4 has a working current, the triac at the output end of the converter U4 is turned on to trigger the external triac Q5 to be turned on, and the defogging module 300 enters a working state. When the output end of the control module 100 outputs a high level, the input loop of the converter U4 has no working current, the triac at the output end of the converter U4 is turned off, the external triac Q5 is turned off, and the defogging module 300 does not work.
As shown in fig. 3, the LED driving power supply includes a main circuit of the driving power supply, and further includes the defogging circuit, which is connected through a control module 100; the driving power supply main circuit comprises a rectifying and filtering circuit, a high-frequency converter, a constant-voltage stabilizing circuit and an LED output circuit; the input end of the rectification filter circuit is connected with alternating voltage, and the output end of the rectification filter circuit is connected with the high-frequency converter; the output of the high-frequency converter is connected with the constant-voltage stabilizing circuit; the constant voltage stabilizing circuit is connected with the LED output circuit and the defogging circuit and provides stable 5V direct current voltage for the LED output circuit and the defogging circuit.
The utility model provides a defogging circuit and an LED driving power supply, which are used for adding a defogging function while a mirror illuminates, and solving the problem that the illumination effect is influenced by the fact that water mist is attached to the surface of the mirror and becomes blurred.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (8)
1. A defogging circuit is used for connecting a defogging module and is characterized in that: the defogging device comprises a control module and a defogging control conversion circuit, wherein the defogging control conversion circuit is respectively and electrically connected with the control module and the defogging module; the control module is used for outputting a control level to the defogging control conversion circuit; the defogging control conversion circuit is used for converting the control level into a constant output level to start the defogging module.
2. A defogging circuit as recited in claim 1, wherein: the demisting control conversion circuit comprises a converter U4, a triode Q4, a bidirectional thyristor Q5, a capacitor C100, a resistor R29, a resistor R80, a resistor R81, a resistor R82, a resistor R100 and a resistor R102; a pin 1 of the converter U4 is connected with a resistor R80, the other end of the resistor R80 is connected with direct-current voltage, a base electrode of the triode Q4 is connected with the output end of the control module after being connected with the resistor R82 in series, an emitter electrode of the triode Q4 is connected with the resistor R81, meanwhile, the signal is grounded, and the other end of the resistor R81 is connected with the base electrode of the triode Q4 in parallel; the collector of the triode Q4 is connected with the pin 2 of the converter U4, the control electrode of the triac Q5 is connected with the pin 4 of the converter U4, the main electrode 1 of the triac Q5 is respectively connected with the defogging module and the resistor R102, the main electrode 2 of the triac Q5 is connected with the alternating current end, the resistor R29 is connected in parallel between the control electrode of the triac Q5 and the main electrode 2, the other end of the resistor R102 is connected with the pin 6 of the converter U4, the resistor R100 is connected in series with the capacitor C100 and then connected in parallel between the alternating current end and the defogging module.
3. A defogging circuit as recited in claim 1, wherein: and the power supply input of the defogging module is alternating current.
4. A defogging circuit as recited in claim 1, wherein: and the input voltage of the control module chip model STM32F101R6 is 5V direct-current voltage.
5. The defogging circuit recited in claim 4 wherein: the control module outputs high level or low level.
6. A defogging circuit as recited in claim 2, wherein: the converter U4 is a bidirectional thyristor output type photoelectric coupler and is used for isolating the control module and triggering the bidirectional thyristor Q5.
LED drive power supply, including the drive power supply main circuit, its characterized in that: further comprising the defogging circuit of any one of claims 1-6.
8. The LED driving power supply according to claim 7, wherein: the main circuit of the driving power supply comprises a rectifying and filtering circuit, a high-frequency converter, a constant-voltage stabilizing circuit and an LED output circuit; the input end of the rectification filter circuit is connected with alternating voltage, and the output end of the rectification filter circuit is connected with the high-frequency converter; the output of the high-frequency converter is connected with the constant-voltage stabilizing circuit; the constant voltage stabilizing circuit is connected with the LED output circuit and the defogging circuit and provides stable 5V direct current voltage for the LED output circuit and the defogging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220236557.5U CN216960257U (en) | 2022-01-28 | 2022-01-28 | Defogging circuit and LED driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220236557.5U CN216960257U (en) | 2022-01-28 | 2022-01-28 | Defogging circuit and LED driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216960257U true CN216960257U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220236557.5U Active CN216960257U (en) | 2022-01-28 | 2022-01-28 | Defogging circuit and LED driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216960257U (en) |
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2022
- 2022-01-28 CN CN202220236557.5U patent/CN216960257U/en active Active
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