CN211406379U - Light-adjustable circuit with constant voltage power supply - Google Patents
Light-adjustable circuit with constant voltage power supply Download PDFInfo
- Publication number
- CN211406379U CN211406379U CN201922175460.9U CN201922175460U CN211406379U CN 211406379 U CN211406379 U CN 211406379U CN 201922175460 U CN201922175460 U CN 201922175460U CN 211406379 U CN211406379 U CN 211406379U
- Authority
- CN
- China
- Prior art keywords
- terminal
- circuit
- driver
- light emitting
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A dimmable circuit for a power supply constant voltage, comprising: a power supply for supplying a constant voltage; the voltage regulating circuit is used for regulating the input voltage of the power supply to the driver; the voltage regulating circuit is connected with the power supply; the driver is used for driving each LED lamp in the light-emitting circuit to light; the driver is connected with the voltage regulating circuit; a light emitting circuit for receiving control of the driver to emit light; the light-emitting circuit is connected with the driver; the voltage regulating circuit regulates the input voltage of the power supply to the driver so as to control the LED lamp to be turned on or turned off. The application provides a pair of circuit of can adjusting luminance of power constant voltage, it just can adjust the luminance in LED lamp strip or lamp area after the commercial power is cut in again to connect ordinary knob light modulator in its front end, and is very simple and convenient, has created the condition for the energy-conserving use in LED lamp strip or lamp area.
Description
Technical Field
The utility model belongs to the technical field of the LED control, concretely relates to light-adjustable circuit of power constant voltage.
Background
The LED lamp strip or lamp area is used extensively in the existing market, and especially outdoor advertising uses very much, and outdoor billboard can produce light pollution and electric quantity consumption if too bright in midnight's time interval, needs to adjust its luminance this time. Here, each path of the light bar or the light belt is mostly composed of a plurality of low-power light beads connected in series with a current regulating resistor, and the power is generally supplied by 12Vdc or 24 Vdc. Because the 12Vdc or 24Vdc uses a common switching power supply and a given structure of the LED light bar or light strip, the current of the power supply circuit cannot be adjusted by using a common adjusting method, so that the brightness of the LED light bar or light strip cannot be adjusted.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a light-adjustable circuit of power constant voltage, include:
a power supply for supplying a constant voltage;
the voltage regulating circuit is used for regulating the input voltage of the power supply to the driver; the voltage regulating circuit is connected with the power supply;
the driver is used for driving each LED lamp in the light-emitting circuit to light; the driver is connected with the voltage regulating circuit;
a light emitting circuit for receiving control of the driver to emit light; the light-emitting circuit is connected with the driver;
the voltage regulating circuit regulates the input voltage of the power supply to the driver so as to control the LED lamp to be turned on or turned off.
Preferably, the power supply is an alternating current power supply.
Preferably, the voltage of the power supply is 120V.
Preferably, the voltage regulating circuit comprises an inductor, a first resistor and a varistor, wherein a first end of the inductor is connected with the L end of the power supply, and a second end of the inductor is respectively connected with the first resistor and a first end of the varistor; the second end of the rheostat is connected with the N end of the power supply and the driver respectively; and the second end of the first resistor is connected with the driver.
Preferably, the driver includes a GND terminal, an RS terminal, a RESET terminal, a CM terminal, a CP terminal, and an LED terminal, the RS terminal and the RESET terminal are respectively connected to first terminals of a second resistor and a third resistor, second terminals of the second resistor and the third resistor are respectively connected to the GND terminal, a first capacitor is disposed between the CM terminal and the CP terminal, and the LED terminal is connected to the light emitting circuit.
Preferably, the LED terminals include an LED1 terminal, an LED2 terminal, and an LED3 terminal.
Preferably, the light emitting circuit includes a first light emitting diode, a second light emitting diode, a third light emitting diode and a fourth light emitting diode, an anode of the first light emitting diode is connected to the LED1 terminal of the driver, a cathode of the first light emitting diode is connected to the anode of the second light emitting diode, a cathode of the second light emitting diode is connected to the anode of the third light emitting diode, a cathode of the third light emitting diode is connected to the anode of the fourth light emitting diode, a cathode of the fourth light emitting diode is connected to the LED3 terminal of the driver, and an anode of the third light emitting diode is connected to the LED2 terminal of the driver.
Preferably, a fourth resistor is further disposed between the anode of the third light emitting diode and the LED 2.
The application provides a pair of circuit of can adjusting luminance of power constant voltage, it just can adjust the luminance in LED lamp strip or lamp area after the commercial power is cut in again to connect ordinary knob light modulator in its front end, and is very simple and convenient, has created the condition for the energy-conserving use in LED lamp strip or lamp area.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic circuit diagram of a light-adjustable circuit with constant voltage supply provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1, in the embodiment of the present application, the present application provides a dimmable circuit for a constant voltage of a power supply U, including: the power supply U, the voltage regulating circuit 1, the driver 2, and the light emitting circuit 3, each of which is described in detail below.
Referring to fig. 1, in an embodiment of the present application, a dimmable circuit for a constant voltage of a power supply U includes:
a power supply U for supplying a constant voltage;
the voltage regulating circuit 1 is used for regulating the input voltage of the power supply U to the driver 2; the voltage regulating circuit 1 is connected with the power supply U;
a driver 2 for driving each LED lamp in the light emitting circuit 3 to light up; the driver 2 is connected with the voltage regulating circuit 1;
a light emitting circuit 3 for receiving control of the driver 2 to emit light; the light emitting circuit 3 is connected with the driver 2;
the voltage regulating circuit 1 regulates the input voltage of the power supply U to the driver 2 so as to control the LED lamp to be turned on or turned off.
When the circuit works, the input voltage of the driver 2 is adjusted by adjusting the voltage regulating circuit 1, so that the lighting or the extinguishing of the LED lamp in the light emitting circuit 3 is adjusted.
Referring to fig. 1, in the embodiment of the present application, the power supply U is an ac power supply, and the voltage of the power supply U is 120V.
As shown in fig. 1, in the embodiment of the present application, the voltage regulating circuit 1 includes an inductor F1, a first resistor R1, and a varistor M1, a first end of the inductor F1 is connected to the L terminal of the power U, and a second end of the inductor F1 is connected to a first end of the first resistor R1 and a first end of the varistor M1, respectively; the second end of the rheostat M1 is respectively connected with the N end of the power supply U and the driver 2; the second end of the first resistor R1 is connected to the driver 2.
As shown in fig. 1, in the embodiment of the present application, the driver 2 includes a GND terminal, an RS terminal, a RESET terminal, a CM terminal, a CP terminal, and an LED terminal, the RS terminal and the RESET terminal are respectively connected to first terminals of a second resistor R2 and a third resistor R3, second terminals of the second resistor R2 and the third resistor R3 are respectively connected to the GND terminal, a first capacitor C1 is disposed between the CM terminal and the CP terminal, and the LED terminal is connected to the light emitting circuit 3.
As shown in fig. 1, in the embodiment of the present application, the LED terminals include an LED1 terminal, an LED2 terminal, and an LED3 terminal.
As shown in fig. 1, in the embodiment of the present application, the light emitting circuit 3 includes a first light emitting diode LED1, a second light emitting diode LED2, a third light emitting diode LED3, and a fourth light emitting diode LED4, an anode of the first light emitting diode LED1 is connected to an LED1 terminal of the driver 2, a cathode of the first light emitting diode LED1 is connected to an anode of the second light emitting diode LED2, a cathode of the second light emitting diode LED2 is connected to an anode of the third light emitting diode LED3, a cathode of the third light emitting diode LED3 is connected to an anode of the fourth light emitting diode LED4, a cathode of the fourth light emitting diode LED4 is connected to an LED3 terminal of the driver 2, and an anode of the third light emitting diode LED3 is connected to an LED2 terminal of the driver 2.
As shown in fig. 1, in the embodiment of the present application, a fourth resistor R4 is further disposed between the anode of the third light emitting diode LED3 and the end of the LED 2.
The application provides a pair of circuit of can adjusting luminance of power constant voltage, it just can adjust the luminance in LED lamp strip or lamp area after the commercial power is cut in again to connect ordinary knob light modulator in its front end, and is very simple and convenient, has created the condition for the energy-conserving use in LED lamp strip or lamp area.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A dimmable circuit for a power supply constant voltage, comprising:
a power supply for supplying a constant voltage;
the voltage regulating circuit is used for regulating the input voltage of the power supply to the driver; the voltage regulating circuit is connected with the power supply;
the driver is used for driving each LED lamp in the light-emitting circuit to light; the driver is connected with the voltage regulating circuit;
the driver is connected with a light-emitting circuit which is used for receiving the control of the driver to emit light;
the voltage regulating circuit regulates the input voltage of the power supply to the driver so as to control the LED lamp to be turned on or turned off.
2. The dimmable circuit of claim 1, wherein the power supply is an ac power supply.
3. The dimmable circuit of claim 2, wherein the voltage of the power supply is 120V.
4. The dimmable circuit of claim 1, wherein the voltage regulating circuit comprises an inductor, a first resistor, and a varistor, wherein a first end of the inductor is connected to the L-terminal of the power source and a second end of the inductor is connected to the first resistor and the first end of the varistor, respectively; the second end of the rheostat is connected with the N end of the power supply and the driver respectively; and the second end of the first resistor is connected with the driver.
5. The dimmable circuit of claim 1, wherein the driver comprises a GND terminal, an RS terminal, a RESET terminal, a CM terminal, a CP terminal, and an LED terminal, the RS terminal and the RESET terminal are respectively connected to first terminals of a second resistor and a third resistor, second terminals of the second resistor and the third resistor are respectively connected to the GND terminal, a first capacitor is disposed between the CM terminal and the CP terminal, and the LED terminal is connected to the light emitting circuit.
6. The tunable circuit of claim 5, wherein the LED terminals comprise an LED1 terminal, an LED2 terminal, and an LED3 terminal.
7. The dimmable circuit of claim 1, wherein the light emitting circuit comprises a first light emitting diode, a second light emitting diode, a third light emitting diode and a fourth light emitting diode, wherein an anode of the first light emitting diode is connected to the LED1 terminal of the driver, a cathode of the first light emitting diode is connected to the anode of the second light emitting diode, a cathode of the second light emitting diode is connected to the anode of the third light emitting diode, a cathode of the third light emitting diode is connected to the anode of the fourth light emitting diode, a cathode of the fourth light emitting diode is connected to the LED3 terminal of the driver, and an anode of the third light emitting diode is connected to the LED2 terminal of the driver.
8. The dimming circuit of claim 7, wherein a fourth resistor is further disposed between the third LED anode and the LED2 terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922175460.9U CN211406379U (en) | 2019-12-08 | 2019-12-08 | Light-adjustable circuit with constant voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922175460.9U CN211406379U (en) | 2019-12-08 | 2019-12-08 | Light-adjustable circuit with constant voltage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211406379U true CN211406379U (en) | 2020-09-01 |
Family
ID=72216298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922175460.9U Active CN211406379U (en) | 2019-12-08 | 2019-12-08 | Light-adjustable circuit with constant voltage power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211406379U (en) |
-
2019
- 2019-12-08 CN CN201922175460.9U patent/CN211406379U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7215086B2 (en) | Electronic light generating element light bulb | |
| US8786202B2 (en) | Lighting device and method of controlling light emitted thereby | |
| US20110031890A1 (en) | Led emulation of incandescent bulb brightness and color response to varying power input and dimmer circuit therefor | |
| CN109640459B (en) | Switch color temperature adjusting control circuit based on LED illumination linear driving condition | |
| CN201177243Y (en) | Adjustable light LED lighting lamp | |
| KR101306742B1 (en) | A lighting device and a method of controlling a light emitted thereof | |
| CN211406379U (en) | Light-adjustable circuit with constant voltage power supply | |
| CN211240167U (en) | Intelligent medical film observation lamp box control circuit | |
| CN201047522Y (en) | Circuit structure of LED illuminating device | |
| CN203722879U (en) | Light-emitting device with light-emitting diode | |
| KR20130103263A (en) | Dimmable led lighting device | |
| CN219287775U (en) | Multicolor-temperature lamp | |
| CN215268795U (en) | 2.4G WiFi dimming and color-mixing circuit | |
| CN213847077U (en) | Self-adjusting light and color-adjusting non-stroboscopic bulb | |
| CN204906819U (en) | Linear constant current drive device and LED lamps and lanterns of balanced LED lamp cross luma degree | |
| CN210807740U (en) | LED lamp color temperature switching circuit capable of being extinguished in delayed mode | |
| CN210431964U (en) | Initial power-on normally-on structure with dimming interface circuit | |
| CN219287772U (en) | Constant-current LED lamp strip | |
| CN216600147U (en) | LED light source driver | |
| JP6262775B2 (en) | Dimmable LED lamp activated on demand side | |
| CN210807730U (en) | Silicon controlled rectifier linear non-stroboscopic LED circuit of adjusting luminance | |
| CN219287771U (en) | Circuit structure of constant-current LED lamp strip | |
| CN207118033U (en) | A kind of bipolarity dims color-temperature regulating light bar | |
| CN210042307U (en) | High-brightness point light source | |
| CN208369899U (en) | Circuit for lamp between a kind of automobile-used great power LED daytime |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528200 2nd and 3rd floors, building 2, No.26, Lihe Road West, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Oubo Intelligent Electronic Technology Co.,Ltd. Address before: 528200 3rd floor, building a, No.60 Dalang Road, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee before: Foshan Oubo Electronic Co.,Ltd. |