CN210042302U - Circuit for adjusting brightness of lamp - Google Patents
Circuit for adjusting brightness of lamp Download PDFInfo
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- CN210042302U CN210042302U CN201920557308.4U CN201920557308U CN210042302U CN 210042302 U CN210042302 U CN 210042302U CN 201920557308 U CN201920557308 U CN 201920557308U CN 210042302 U CN210042302 U CN 210042302U
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model belongs to the technical field of the lamp circuit technique and specifically relates to indicate a circuit for adjusting lamp luminance, including main control chip IC3, lamp connecting piece T1, switch tube Q4, resistance R10, the button of brightening of being connected with main control chip IC 3's first input and the button of lightening of being connected with main control chip IC 3's second input, main control chip IC 3's output is connected with switch tube Q4's control end, switch tube Q4's first switch end is connected with external power supply through resistance R10, switch tube Q4's second switch end ground connection, lamp connecting piece T1 is equipped with first link and second link, lamp connecting piece T1's first link is connected with resistance R10 and external power source's junction, lamp connecting piece T1's second link is connected with switch tube Q4's first switch end. The utility model discloses can adjust the luminance of lamps and lanterns to reach the effect that reduces the lamps and lanterns volume and reduce lamps and lanterns manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of the lamps and lanterns circuit technique and specifically relates to indicate a circuit for adjusting lamp luminance.
Background
With the progress of society, the living standard of people is continuously improved, and the requirement on the controllability of products is higher and higher. Different groups of people have different preferences for the brightness of the lamp, and people tend to use lamps with adjustable brightness. However, the brightness of the lamp can be adjusted by adjusting the number of the lamps on the market, so that a plurality of LEDs are needed in the lamp, which not only results in larger volume of the lamp, but also results in high production cost.
Disclosure of Invention
The utility model discloses problem to prior art provides a circuit for adjusting lamp luminance, can reduce the volume of adjustable luminance lamps and lanterns and can reduce the manufacturing cost of adjustable luminance lamps and lanterns.
The utility model adopts the following technical scheme: a circuit for adjusting lamp brightness comprises a main control chip IC3, a lamp connecting piece T1, a switch tube Q4, a resistor R10, a brightening key connected with a first input end of the main control chip IC3 and a lightening key connected with a second input end of the main control chip IC3, wherein an output end of the main control chip IC3 is connected with a control end of the switch tube Q4, a first switch end of the switch tube Q4 is connected with an external power supply through a resistor R10, a second switch end of the switch tube Q4 is grounded, the lamp connecting piece T1 is provided with a first connecting end and a second connecting end, the first connecting end of the lamp connecting piece T1 is connected with a connecting position of the resistor R10 and the external power supply, and the second connecting end of the lamp connecting piece T1 is connected with the first switch end of the switch tube Q4.
Preferably, the circuit for adjusting the brightness of the lamp further includes a resistor R6, the main control chip IC3 is provided with an analog-to-digital conversion unit, the second switch end of the switching tube Q4 is grounded through the resistor R6, and the input end of the analog-to-digital conversion unit is connected with the second switch end of the switching tube Q4.
Preferably, the circuit for adjusting the brightness of the lamp further includes a buzzer SPL2 and a switch tube Q18, wherein the positive electrode of the buzzer SPL2 is connected to an external power supply, the negative electrode of the buzzer SPL2 is connected to the first switch end of the switch tube Q18, the second switch end of the switch tube Q18 is grounded, and the main control chip IC3 is connected to the control end of the switch tube Q18.
Preferably, the circuit for adjusting the brightness of the lamp comprises a resistor R22 and a resistor R23, one end of the brightening key and one end of the dimming key are both grounded, the other end of the brightening key is connected with an external power supply through a resistor R22, the other end of the dimming key is connected with the external power supply through a resistor R23, a first input end of the main control chip IC3 is connected with a joint of the brightening key and the resistor R22, and a second input end of the main control chip IC3 is connected with a joint of the dimming key and the resistor R23.
Preferably, the circuit for adjusting the brightness of the lamp further includes a remote control receiving chip IC4 and an antenna ANT for receiving an external signal, an output terminal of the antenna ANT is connected to an input terminal of the remote control receiving chip IC4, and an output terminal of the remote control receiving chip IC4 is connected to a third input terminal of the main control chip IC 3.
Preferably, the circuit for adjusting the brightness of the lamp further comprises a power module, the power module comprises a voltage stabilizing chip IC2, and an external power supply supplies power to the main control chip IC3 through the voltage stabilizing chip IC 2.
Preferably, the power module further includes a fuse F1, and the voltage regulator chip IC2 is connected to an external power source through the fuse F1.
Preferably, the circuit for adjusting the brightness of the lamp further includes a switch tube Q5, the output terminal of the main control chip IC3 is connected to the control terminal of the switch tube Q5, the first switch terminal of the switch tube Q5 is connected to the second connection terminal of the lamp connection member T1, and the second switch terminal of the switch tube Q5 is grounded.
Preferably, the circuit for adjusting the brightness of the lamp further includes a resistor R2, and the output terminal of the main control chip IC3 is connected to the control terminal of the switching tube Q4 through the resistor R2.
Preferably, the power supply module further comprises a filter unit, the filter unit comprises a capacitor C22, an inductor L3, a capacitor C12 connected in parallel with the capacitor C22, and an inductor L4 connected in parallel with the inductor L3, a positive electrode of the capacitor C22 is connected with a positive electrode of the external power supply, a negative electrode of the capacitor C22 is connected with a negative electrode of the external power supply, one end of the inductor L3 is connected with a positive electrode of the capacitor 22, and the other end of the inductor L3 is connected with the first connection end of the lamp connection T1.
The utility model has the advantages that: the lamp is subjected to PWM control by utilizing the main control chip IC3, so that the brightness of the lamp is adjusted, and the effects of reducing the size of the lamp and reducing the manufacturing cost of the lamp are achieved.
Drawings
Fig. 1 is a first partial circuit diagram of the present invention.
Fig. 2 is a second partial circuit diagram of the present invention.
Fig. 3 is a third partial circuit diagram of the present invention.
Reference numerals: 1. brightening keys; 2. lightening the key; 3. a power supply module; 4. and a filtering unit.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a circuit for adjusting lamp brightness includes a main control chip IC3, a lamp connector T1, a switch tube Q4, a resistor R10, a brightness-increasing key 1 connected to a first input terminal of the main control chip IC3, and a brightness-decreasing key 2 connected to a second input terminal of the main control chip IC3, an output terminal of the main control chip IC3 is connected to a control terminal of the switch tube Q4, a first switch terminal of the switch tube Q4 is connected to an external power supply through a resistor R10, a second switch terminal of the switch tube Q4 is grounded, the lamp connector T1 has a first connection terminal and a second connection terminal, the first connection terminal of the lamp connector T1 is connected to a connection point of the resistor R10 and the external power supply, and the second connection terminal of the lamp connector T1 is connected to the first switch terminal of the switch tube Q4.
The lamp connector T1 has a first connection end and a second connection end for connecting the positive and negative electrodes of the lamp, respectively. When the main control chip IC3 detects that the brightness enhancement key 1 is pressed, the duty ratio of the PWM signal output to the switch tube Q4 is increased, and when the main control chip IC3 detects that the brightness enhancement key 2 is pressed, the duty ratio of the PWM signal output to the switch tube Q4 is decreased. When the PWM signal is at a high level, the switching transistor Q4 is turned on, and there is a voltage drop between the first connection terminal of the lamp connection member T1 and the second connection terminal of the lamp connection member T1, so that the lamp is turned on. When the PWM signal is at a low level, the switching transistor Q4 is turned off, there is no voltage drop between the first connection terminal of the lamp connection T1 and the second connection terminal of the lamp connection T1, and the lamp is not lit. Because the high and low levels of the PWM signal are switched quickly, the on and off of the lamp can not be seen by human eyes; the larger the duty ratio of the PWM signal is, the longer the lighting time of the lamp is, and the brighter the lamp is sensed by human eyes. The model of the main control chip IC3 is ED 2192.
As shown in fig. 1, the circuit for adjusting the brightness of the lamp further includes a resistor R6, the main control chip IC3 is provided with an analog-to-digital conversion unit, the second switch end of the switching tube Q4 is grounded through the resistor R6, and the input end of the analog-to-digital conversion unit is connected to the second switch end of the switching tube Q4. The voltage is divided by the resistor R6, and the current flowing through the resistor R6 is calculated by the master control IC3, so that a user can know the current condition in a lamp loop conveniently, and the lamp is prevented from being burnt out when the current is too large. The main control chip IC3 with the model ED2192 has an analog-to-digital conversion unit arranged therein, and is not shown in the figure.
As shown in fig. 1, the circuit for adjusting the brightness of the lamp further includes a buzzer SPL2 and a switching tube Q18, wherein a positive electrode of the buzzer SPL2 is connected to an external power source, a negative electrode of the buzzer SPL2 is connected to a first switching end of the switching tube Q18, a second switching end of the switching tube Q18 is grounded, and the main control chip IC3 is connected to a control end of the switching tube Q18. When the circuit is abnormal, such as the current in the lamp loop is too large, the buzzer SPL2 sounds to remind the user.
As shown in fig. 1, the circuit for adjusting the brightness of the lamp includes a resistor R22 and a resistor R23, one end of the brightening key 1 and one end of the dimming key 2 are both grounded, the other end of the brightening key 1 is connected with an external power supply through a resistor R22, the other end of the dimming key 2 is connected with the external power supply through a resistor R23, a first input end of a main control chip IC3 is connected with a junction of the brightening key 1 and the resistor R22, and a second input end of a main control chip IC3 is connected with a junction of the dimming key 2 and the resistor R23. When the highlight key 1 and the highlight key 2 are not pressed, the first input terminal of the main control chip IC3 and the second input terminal of the main control chip IC3 are at a high level, and when the highlight key 1 and the highlight key 2 are pressed, the first input terminal of the main control chip IC3 and the second input terminal of the main control chip IC3 are at a low level.
As shown in fig. 2, the circuit for adjusting the brightness of the lamp further includes a remote control receiving chip IC4 and an antenna ANT for receiving an external signal, an output terminal of the antenna ANT is connected to an input terminal of the remote control receiving chip IC4, and an output terminal of the remote control receiving chip IC4 is connected to a third input terminal of the main control chip IC 3. The user can conveniently use the remote controller to remotely control the lamp.
As shown in fig. 3, the circuit for adjusting the brightness of the lamp further includes a power module 3, the power module 3 includes a voltage regulation chip IC2, and an external power supply supplies power to the main control chip IC3 through the voltage regulation chip IC2, so that the main control chip IC3 receives power stably.
As shown in fig. 3, the power module 3 further includes a fuse F1, and the voltage regulator chip IC2 is connected to an external power source through the fuse F1. When the current in the power module 3 is too large, the fuse F1 is blown to prevent burning of the lamp.
As shown in fig. 1, the circuit for adjusting the brightness of the lamp further includes a switch tube Q5, the output terminal of the main control chip IC3 is connected to the control terminal of the switch tube Q5, the first switch terminal of the switch tube Q5 is connected to the second connection terminal of the lamp connector T1, and the second switch terminal of the switch tube Q5 is grounded. The switching tube Q5 is used for shunting to adapt to the application occasions of large current.
As shown in fig. 1, the circuit for adjusting the brightness of the lamp further includes a resistor R2, and the output terminal of the main control chip IC3 is connected to the control terminal of the switching tube Q4 through the resistor R2. The resistor R2 is used for current limiting to prevent the switch tube Q4 from being damaged.
As shown in fig. 3, the power module 3 further includes a filter unit 4, the filter unit 4 includes a capacitor C22, an inductor L3, a capacitor C12 connected in parallel with the capacitor C22, and an inductor L4 connected in parallel with the inductor L3, a positive electrode of the capacitor C22 is connected to a positive electrode of the external power supply, a negative electrode of the capacitor C22 is connected to a negative electrode of the external power supply, one end of the inductor L3 is connected to a positive electrode of the capacitor 22, and the other end of the inductor L3 is connected to the first connection end of the lamp connection T1. The ripple of the external power supply is filtered by the filtering unit 4, so that the lamp is stably powered.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (10)
1. A circuit for dimming a lamp, comprising: the LED lamp comprises a main control chip IC3, a lamp connecting piece T1, a switch tube Q4, a resistor R10, a brightening key (1) connected with a first input end of the main control chip IC3 and a lightening key (2) connected with a second input end of the main control chip IC3, wherein an output end of the main control chip IC3 is connected with a control end of the switch tube Q4, a first switch end of the switch tube Q4 is connected with an external power supply through a resistor R10, a second switch end of the switch tube Q4 is grounded, the lamp connecting piece T1 is provided with a first connecting end and a second connecting end, the first connecting end of the lamp connecting piece T1 is connected with the connecting position of the resistor R10 and the external power supply, and the second connecting end of the lamp connecting piece T1 is connected with the first switch end of the switch tube Q4.
2. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp further comprises a resistor R6, the main control chip IC3 is provided with an analog-digital conversion unit, a second switch end of the switch tube Q4 is grounded through the resistor R6, and the input end of the analog-digital conversion unit is connected with the second switch end of the switch tube Q4.
3. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp further comprises a buzzer SPL2 and a switch tube Q18, the positive electrode of the buzzer SPL2 is connected with an external power supply, the negative electrode of the buzzer SPL2 is connected with the first switch end of the switch tube Q18, the second switch end of the switch tube Q18 is grounded, and the main control chip IC3 is connected with the control end of the switch tube Q18.
4. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp comprises a resistor R22 and a resistor R23, one end of a brightening key (1) and one end of a lightening key (2) are all grounded, the other end of the brightening key (1) is connected with an external power supply through a resistor R22, the other end of the lightening key (2) is connected with the external power supply through a resistor R23, a first input end of a main control chip IC3 is connected with a joint of the brightening key (1) and a resistor R22, and a second input end of a main control chip IC3 is connected with a joint of the lightening key (2) and the resistor R23.
5. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp further comprises a remote control receiving chip IC4 and an antenna ANT for receiving external signals, wherein the output end of the antenna ANT is connected with the input end of the remote control receiving chip IC4, and the output end of the remote control receiving chip IC4 is connected with the third input end of the main control chip IC 3.
6. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp further comprises a power supply module (3), the power supply module (3) comprises a voltage stabilizing chip IC2, and an external power supply supplies power to the main control chip IC3 after passing through the voltage stabilizing chip IC 2.
7. A circuit for dimming a lamp as defined in claim 6, wherein: the power supply module (3) further comprises a fuse F1, and the voltage stabilizing chip IC2 is connected with an external power supply through the fuse F1.
8. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp further comprises a switch tube Q5, the output end of the main control chip IC3 is connected with the control end of the switch tube Q5, the first switch end of the switch tube Q5 is connected with the second connecting end of the lamp connecting piece T1, and the second switch end of the switch tube Q5 is grounded.
9. A circuit for dimming a lamp as claimed in claim 1, wherein: the circuit for adjusting the brightness of the lamp further comprises a resistor R2, and the output end of the main control chip IC3 is connected with the control end of the switch tube Q4 through the resistor R2.
10. A circuit for dimming a lamp as defined in claim 6, wherein: the power supply module (3) further comprises a filtering unit (4), the filtering unit (4) comprises a capacitor C22, an inductor L3, a capacitor C12 connected with the capacitor C22 in parallel and an inductor L4 connected with the inductor L3 in parallel, the positive electrode of the capacitor C22 is connected with the positive electrode of an external power supply, the negative electrode of the capacitor C22 is connected with the negative electrode of the external power supply, one end of the inductor L3 is connected with the positive electrode of the capacitor 22, and the other end of the inductor L3 is connected with the first connecting end of the lamp connecting piece T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920557308.4U CN210042302U (en) | 2019-04-22 | 2019-04-22 | Circuit for adjusting brightness of lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920557308.4U CN210042302U (en) | 2019-04-22 | 2019-04-22 | Circuit for adjusting brightness of lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210042302U true CN210042302U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920557308.4U Active CN210042302U (en) | 2019-04-22 | 2019-04-22 | Circuit for adjusting brightness of lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210042302U (en) |
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2019
- 2019-04-22 CN CN201920557308.4U patent/CN210042302U/en active Active
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| GR01 | Patent grant |