CN215073064U - Contact key switch dimming lamp circuit - Google Patents
Contact key switch dimming lamp circuit Download PDFInfo
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- CN215073064U CN215073064U CN202120823428.1U CN202120823428U CN215073064U CN 215073064 U CN215073064 U CN 215073064U CN 202120823428 U CN202120823428 U CN 202120823428U CN 215073064 U CN215073064 U CN 215073064U
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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
Abstract
The utility model discloses a contact key switch dimming lamp circuit, which comprises a main processor, a rectifying and filtering unit, a boosting constant current unit and a driving unit, wherein the rectifying and filtering unit, the boosting constant current unit and the driving unit are connected with the main processor; the rectification filtering unit is used for rectifying and filtering the current; the boosting constant-current unit is used for boosting voltage; the main processor processes and receives the information of the rectifying and filtering unit and the boosting constant current unit and feeds the information back to the driving unit; the driving unit drives the LED lamp to work; the boosting constant current is realized through the main processor, when the contact key switch is pressed down and the second pin of the single chip microcomputer detects the low level signal, the duty ratio of the fifth pin of the single chip microcomputer is changed through a program, and the switching of the brightness gear is realized; the duty ratio of a fifth pin of the single chip microcomputer is increased by one time when the contact key switch is pressed once; when the duty ratio is 100%, the contact key switch is pressed once again to be switched to the minimum gear, the circulation is continued all the time, and the power-off memory function is realized.
Description
Technical Field
The utility model relates to a light control field especially relates to a contact key switch light modulation lamp circuit.
Background
With the development of semiconductor lighting technology, LED lamps have become more and more popular, especially, common families have started to use LEDs for lighting in a large area, the advantages of energy conservation, individuality and controllability of LED lighting are fully embodied, and the acceptance of users to LED lighting is greatly improved. The common LED lamp cannot realize dimming, and the conventional method in the market at present is to perform wireless control through a remote controller or a mobile phone, but the use is not convenient enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a contact key switch dimming lamp circuit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a contact key switch dimming lamp circuit comprises a main processor, a rectifying and filtering unit, a boosting constant-current unit and a driving unit, wherein the rectifying and filtering unit, the boosting constant-current unit and the driving unit are connected with the main processor; the rectification filtering unit is used for rectifying and filtering the current; the boosting constant-current unit is used for boosting voltage; the main processor processes and receives the information of the rectifying and filtering unit and the boosting constant current unit and feeds the information back to the driving unit; the driving unit drives the LED lamp to work.
Preferably, the rectifying and filtering unit includes a bridge rectifier diode, a first polar capacitor, an eleventh capacitor, a twelfth capacitor and a second polar capacitor; the first polar capacitor, the eleventh capacitor, the twelfth capacitor and the second polar capacitor are connected in parallel, the bridge rectifier diode is connected with an external power supply, and the cathode of the bridge rectifier diode is grounded.
Preferably, the boost constant-current unit comprises a first resistor, a fourth capacitor, a first inductance coil, a fifth capacitor, a sixth capacitor, a second diode and a third resistor; a VDD pin of the main processor is connected between the first resistor and the fourth capacitor, one end of the first resistor is connected with the first inductance coil, and the fourth capacitor is grounded; the TOFF pin of the main processor is connected with the fifth capacitor and grounded, and the CCMP pin of the main processor is connected with the sixth capacitor and grounded; and an FB pin of the main processor is respectively connected with the cathode of the second diode and the third resistor.
Preferably, the boost constant current unit further includes an eighth diode, a first MOS transistor, a tenth resistor, a fifth resistor, a ninth capacitor, a fourth resistor, a fifth diode, and a sixth diode; a DRV pin of the main processor is connected with a grid electrode of the first MOS tube through an eighth diode, and the tenth resistor is connected to two ends of the eighth diode; the source electrode of the first MOS tube is respectively connected with the CS pin of the main processor and the fifth resistor and is grounded, and the drain electrode of the first MOS tube is connected with the ninth capacitor and the fourth resistor and is grounded; and the drain electrode of the first MOS tube is also connected with the cathode of the sixth diode, the cathode of the fifth diode and the first inductance coil respectively.
Preferably, the boosting constant current unit further includes a third diode, an eighth capacitor, a fourteenth resistor, a third resistor, and a sixth resistor; the second diode is connected with the third diode, and the third diode is respectively connected with the sixth diode and the fifth diode; one end of the eighth capacitor is connected with one end of the fourteenth resistor, the other end of the eighth capacitor is connected with the cathode of the fifth diode, and the other end of the fourteenth resistor is connected with the anode of the fifth diode; the third resistor is connected with the sixth resistor and grounded.
Preferably, the boost constant current unit further includes a second inductance coil, a seventh resistor, a ninth resistor, a third polar capacitor, and a seventh diode; one end of the second inductance coil is connected with the LED lamp, the other end of the second inductance coil is connected with the seventh resistor and the ninth resistor and is grounded, the second inductance coil is respectively connected with one end of the third polar capacitor and the cathode of the seventh diode, and the other end of the third polar capacitor and the anode of the seventh diode are both grounded.
Preferably, the driving unit comprises a single chip microcomputer, a triode, a first diode, a contact key switch, a first capacitor, a second capacitor and a seventh capacitor; a first pin of the singlechip is connected with an emitting electrode of the triode, a second pin of the singlechip is connected with the contact key switch, and the contact key switch is grounded; a fifth pin and an eighth resistor of the single chip microcomputer and a thirteenth resistor of the single chip microcomputer are connected with the FB pin of the main processor; one end of the seventh capacitor is connected between the eighth resistor and the thirteenth resistor, and the other end of the seventh capacitor is grounded; an emitter of the triode is connected with the third capacitor and grounded, a base of the triode is connected with a cathode of the first diode, and an anode of the first diode is grounded; the collector of the triode is respectively connected with an eleventh resistor and a twelfth resistor, and the twelfth resistor is connected with the first capacitor and grounded; one end of the second capacitor is connected with the eleventh resistor, and the other end of the second capacitor is connected with the first capacitor.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a contact key switch light modulation lamp circuit realizes the constant current that steps up through the host processor, and when contact key switch pressed, when the second pin of singlechip detected this low level signal, through the duty cycle that the procedure changed singlechip fifth pin, realized the luminance gear and switched. The duty ratio of the fifth pin of the single chip microcomputer is increased by one time when the contact key switch is pressed once. When the maximum gear (the duty ratio is 100%) is reached, the contact key switch is pressed once again to switch to the minimum gear, the circulation is continued, and the power-off memory function is realized.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Illustration of the drawings:
1. a rectifying and filtering unit 2, a boosting constant-current unit,
3. and a driving unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the contact key switch dimming lamp circuit comprises a main processor U1, and a rectifying and filtering unit 1, a boosting constant current unit 2 and a driving unit 3 which are connected with the main processor U1; the rectification filtering unit 1 is used for rectifying and filtering the current; the boosting constant current unit 2 is used for boosting voltage; the main processor U1 processes and receives the information of the rectifying and filtering unit 1 and the boosting constant current unit 2 and feeds the information back to the driving unit 3; and the driving unit 3 is used for driving the LED lamp to work.
The rectifying and filtering unit 1 comprises a bridge rectifying diode D1, a first polar capacitor CE1, an eleventh capacitor C11, a twelfth capacitor C12 and a second polar capacitor CE 2; the first polar capacitor CE1, the eleventh capacitor C11, the twelfth capacitor C12 and the second polar capacitor CE2 are connected in parallel, the bridge rectifier diode D1 is connected with an external power supply, and the negative electrode of the bridge rectifier diode D1 is grounded.
The boosting constant current unit 2 comprises a first resistor R1, a fourth capacitor C4, a first inductance coil L1, a fifth capacitor C5, a sixth capacitor C6, a second diode DZ2 and a third resistor C3; a VDD pin of the main processor U1 is connected between a first resistor R1 and a fourth capacitor C4, one end of the first resistor R1 is connected with a first inductance coil L1, and the fourth capacitor C4 is grounded; the TOFF pin of the main processor U1 is connected with the fifth capacitor C5 and grounded, and the CCMP pin of the main processor U1 is connected with the sixth capacitor C6 and grounded; the FB pin of the main processor U1 is respectively connected with the cathode of a second diode DZ2 and a third resistor R3; the boosting constant current unit 2 further comprises an eighth diode D8, a first MOS transistor Q2, a tenth resistor R10, a fifth resistor R5, a ninth capacitor C9, a fourth resistor R4, a fifth diode D5 and a sixth diode D6; a DRV pin of the main processor U1 is connected to a gate of the first MOS transistor Q2 through an eighth diode D8, and a tenth resistor R10 is connected to both ends of the eighth diode D8; the source of the first MOS transistor Q2 is connected to the CS pin of the main processor U1 and the fifth resistor R5, and is grounded, and the drain of the first MOS transistor Q2 is connected to the ninth capacitor C9 and the fourth resistor R4, and is grounded; the drain of the first MOS transistor Q2 is further connected to the cathode of the sixth diode D6, the cathode of the fifth diode D5, and the first inductor L1, respectively.
The boosting constant current unit 2 further includes a third diode DZ3, an eighth capacitor C8, a fourteenth resistor R14, a third resistor R3, and a sixth resistor R6; the second diode DZ2 is connected to a third diode DZ3, the third diode DZ3 being connected to a sixth diode D6 and a fifth diode D5, respectively; one end of an eighth capacitor C8 is connected with one end of a fourteenth resistor R14, the other end of the eighth capacitor C8 is connected with the cathode of a fifth diode D5, and the other end of the fourteenth resistor R14 is connected with the anode of a fifth diode D5; the third resistor R3 is connected with the sixth resistor R6 and is grounded; the boosting constant current unit 2 further comprises a second inductance coil L2, a seventh resistor R7, a ninth resistor R9, a third polar capacitor CE3 and a seventh diode D7; one end of a second inductance coil L2 is connected with the LED lamp, the other end of the second inductance coil L2 is connected with a seventh resistor R7 and a ninth resistor R9 and is grounded, the second inductance coil L2 is respectively connected with one end of a third polar capacitor CE3 and the negative electrode of a seventh diode D7, and the other end of the third polar capacitor CE3 and the positive electrode of the seventh diode D7 are both grounded.
The driving unit 3 comprises a singlechip U3, a triode Q1, a first diode DZ1, a contact key switch K1, a first capacitor C1, a second capacitor C2 and a seventh capacitor C7; a first pin of the singlechip U3 is connected with an emitting electrode of the triode Q1, a second pin of the singlechip U3 is connected with the contact key switch K1, and the contact key switch K1 is grounded; a fifth pin of the singlechip U3 is connected with an eighth resistor R8 and a thirteenth resistor R13 and an FB pin of the main processor U1; one end of the seventh capacitor C7 is connected between the eighth resistor R8 and the thirteenth resistor R13, and the other end of the seventh capacitor C7 is grounded; an emitter of the triode Q1 is connected with the third capacitor C3 and is grounded, a base of the triode Q1 is connected with a cathode of the first diode DZ1, and an anode of the first diode DZ1 is grounded; the collector of the triode Q1 is respectively connected with an eleventh resistor R11 and a twelfth resistor R12, and the twelfth resistor R12 is connected with the first capacitor C1 and grounded; one end of the second capacitor C2 is connected to the eleventh resistor R11, and the other end of the second capacitor C2 is connected to the first capacitor C1.
The utility model discloses a theory of operation: the main processor U1 is used for realizing boosting constant current, when the contact key switch K1 is pressed down, the second pin of the single chip microcomputer U3 detects a low level signal, the duty ratio of the fifth pin of the single chip microcomputer U3 is changed through a program, and therefore the brightness gear switching is achieved. The duty ratio of the fifth pin of the single chip microcomputer U3 is increased by one time when the contact key switch K1 is pressed once. When the maximum gear (the duty ratio is 100%) is reached, the contact key switch K1 is pressed once again to switch to the minimum gear, the circulation is continued, and the power-off memory function is realized.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (7)
1. A contact key switch dimming lamp circuit is characterized by comprising a main processor, a rectifying and filtering unit, a boosting constant-current unit and a driving unit, wherein the rectifying and filtering unit, the boosting constant-current unit and the driving unit are connected with the main processor; the rectification filtering unit is used for rectifying and filtering the current; the boosting constant-current unit is used for boosting voltage; the main processor processes and receives the information of the rectifying and filtering unit and the boosting constant current unit and feeds the information back to the driving unit; the driving unit drives the LED lamp to work.
2. The contact key switch dimming lamp circuit according to claim 1, wherein the rectifying and filtering unit comprises a bridge rectifier diode, a first polar capacitor, an eleventh capacitor, a twelfth capacitor and a second polar capacitor; the first polar capacitor, the eleventh capacitor, the twelfth capacitor and the second polar capacitor are connected in parallel, the bridge rectifier diode is connected with an external power supply, and the cathode of the bridge rectifier diode is grounded.
3. The contact key switch dimming lamp circuit according to claim 2, wherein the boost constant current unit comprises a first resistor, a fourth capacitor, a first inductance coil, a fifth capacitor, a sixth capacitor, a second diode and a third resistor; a VDD pin of the main processor is connected between the first resistor and the fourth capacitor, one end of the first resistor is connected with the first inductance coil, and the fourth capacitor is grounded; the TOFF pin of the main processor is connected with the fifth capacitor and grounded, and the CCMP pin of the main processor is connected with the sixth capacitor and grounded; and an FB pin of the main processor is respectively connected with the cathode of the second diode and the third resistor.
4. The contact key switch dimming lamp circuit according to claim 3, wherein the boost constant current unit further comprises an eighth diode, a first MOS (metal oxide semiconductor) transistor, a tenth resistor, a fifth resistor, a ninth capacitor, a fourth resistor, a fifth diode and a sixth diode; a DRV pin of the main processor is connected with a grid electrode of the first MOS tube through an eighth diode, and the tenth resistor is connected to two ends of the eighth diode; the source electrode of the first MOS tube is respectively connected with the CS pin of the main processor and the fifth resistor and is grounded, and the drain electrode of the first MOS tube is connected with the ninth capacitor and the fourth resistor and is grounded; and the drain electrode of the first MOS tube is also connected with the cathode of the sixth diode, the cathode of the fifth diode and the first inductance coil respectively.
5. The contact key switch dimming lamp circuit according to claim 4, wherein the boost constant current unit further comprises a third diode, an eighth capacitor, a fourteenth resistor, a third resistor and a sixth resistor; the second diode is connected with the third diode, and the third diode is respectively connected with the sixth diode and the fifth diode; one end of the eighth capacitor is connected with one end of the fourteenth resistor, the other end of the eighth capacitor is connected with the cathode of the fifth diode, and the other end of the fourteenth resistor is connected with the anode of the fifth diode; the third resistor is connected with the sixth resistor and grounded.
6. The contact key switch dimming lamp circuit according to claim 5, wherein the boost constant current unit further comprises a second inductance coil, a seventh resistor, a ninth resistor, a third polar capacitor and a seventh diode; one end of the second inductance coil is connected with the LED lamp, the other end of the second inductance coil is connected with the seventh resistor and the ninth resistor and is grounded, the second inductance coil is respectively connected with one end of the third polar capacitor and the cathode of the seventh diode, and the other end of the third polar capacitor and the anode of the seventh diode are both grounded.
7. The contact key switch dimming lamp circuit according to claim 1, wherein the driving unit comprises a single chip microcomputer, a triode, a first diode, a contact key switch, a first capacitor, a second capacitor and a seventh capacitor; a first pin of the singlechip is connected with an emitting electrode of the triode, a second pin of the singlechip is connected with the contact key switch, and the contact key switch is grounded; a fifth pin and an eighth resistor of the single chip microcomputer and a thirteenth resistor of the single chip microcomputer are connected with the FB pin of the main processor; one end of the seventh capacitor is connected between the eighth resistor and the thirteenth resistor, and the other end of the seventh capacitor is grounded; an emitter of the triode is connected with the third capacitor and grounded, a base of the triode is connected with a cathode of the first diode, and an anode of the first diode is grounded; the collector of the triode is respectively connected with an eleventh resistor and a twelfth resistor, and the twelfth resistor is connected with the first capacitor and grounded; one end of the second capacitor is connected with the eleventh resistor, and the other end of the second capacitor is connected with the first capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823428.1U CN215073064U (en) | 2021-04-21 | 2021-04-21 | Contact key switch dimming lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823428.1U CN215073064U (en) | 2021-04-21 | 2021-04-21 | Contact key switch dimming lamp circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215073064U true CN215073064U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120823428.1U Active CN215073064U (en) | 2021-04-21 | 2021-04-21 | Contact key switch dimming lamp circuit |
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| Country | Link |
|---|---|
| CN (1) | CN215073064U (en) |
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2021
- 2021-04-21 CN CN202120823428.1U patent/CN215073064U/en active Active
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