CN219577312U - Intensive dimming LED driving power supply - Google Patents
Intensive dimming LED driving power supply Download PDFInfo
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- CN219577312U CN219577312U CN202321166550.1U CN202321166550U CN219577312U CN 219577312 U CN219577312 U CN 219577312U CN 202321166550 U CN202321166550 U CN 202321166550U CN 219577312 U CN219577312 U CN 219577312U
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Abstract
The utility model discloses an intensive dimming LED driving power supply which comprises an EMC filtering and rectifying circuit, a high PF constant voltage flyback control circuit, a high PF constant voltage flyback conversion circuit, an auxiliary power supply circuit, a signal processing control circuit, an LED driving control circuit and a dimming signal input circuit, wherein the input end of the EMC filtering and rectifying circuit is connected with input alternating current, the output end of the EMC filtering and rectifying circuit is respectively and electrically connected with the input end of the high PF constant voltage flyback control circuit and the input end of the high PF constant voltage flyback conversion circuit, and the output end of the high PF constant voltage flyback control circuit is electrically connected with the control ends of the high PF constant voltage flyback conversion circuit. The intensive dimming LED driving power supply disclosed by the utility model can be compatible with a TRIAC dimmer, a PWM dimmer, a wireless dimmer, a 0-10V dimmer and a resistor dimmer in order to adapt to different types of dimmers, and is simple to install, economical and convenient.
Description
Technical Field
The utility model belongs to the technical field of LED driving power supplies, and particularly relates to an intensive dimming LED driving power supply.
Background
At present, the dimming type LED driving power supply is in a single dimming mode and can only be adapted to a certain dimmer or dimming signals, but the types of dimmers in practical application are many, and many troubles are caused to the use of users or engineering installation.
Accordingly, the above problems are further improved.
Disclosure of Invention
The utility model mainly aims to provide an intensive dimming LED driving power supply which can be compatible with a TRIAC dimmer, a PWM dimmer, a wireless dimmer, a 0-10V dimmer and a resistor dimmer for adapting to different types of dimmers, and is simple to install, economical and convenient.
In order to achieve the above purpose, the utility model provides an intensive dimming LED driving power supply, which comprises an EMC filtering and rectifying circuit, a high PF constant voltage flyback control circuit, a high PF constant voltage flyback conversion circuit, an auxiliary power supply circuit, a signal processing control circuit, an LED driving control circuit and a dimming signal input circuit, wherein:
the input end of the EMC filtering and rectifying circuit is connected with the input alternating current, the output end of the EMC filtering and rectifying circuit is respectively and electrically connected with the input end of the high-PF constant-voltage flyback control circuit and the input end of the high-PF constant-voltage flyback conversion circuit, and the output end of the high-PF constant-voltage flyback control circuit is electrically connected with the control end of the high-PF constant-voltage flyback conversion circuit;
one path of the output end of the high-PF constant-voltage flyback conversion circuit is electrically connected with the power supply end of the signal processing control circuit through the auxiliary power supply circuit, the other path of the output end of the high-PF constant-voltage flyback conversion circuit is electrically connected with the LED driving control circuit, the output end of the signal processing control circuit is electrically connected with the input end of the LED driving control circuit, and the output end of the LED driving control circuit is connected with an LED lamp;
the dimming signal input circuit comprises a TRIAC dimming circuit, a PWM dimming circuit, a wireless dimming circuit, a 0-10V dimming circuit and a resistance dimming circuit, wherein:
the TRIAC dimming circuit is electrically connected with the first input end of the signal processing control circuit;
the PWM dimming circuit is electrically connected with the second input end of the signal processing control circuit;
the wireless dimming circuit is electrically connected with the third input end of the signal processing control circuit;
the 0-10V dimming circuit is electrically connected with the fourth input end of the signal processing control circuit;
the resistance dimming circuit is electrically connected with the fifth input end of the signal processing control circuit.
As a further preferable aspect of the foregoing technical solution, the TRIAC dimming circuit includes a TRIAC dimmer, a TRIAC dimming signal detection conversion circuit, and a TRIAC dimming compensation circuit, wherein:
the TRIAC dimmer is connected between the input alternating current and the EMC filtering and rectifying circuit, the output end of the EMC filtering and rectifying circuit is electrically connected with the input end of the TRIAC dimming compensation circuit, the output end of the TRIAC dimming compensation circuit is electrically connected with the TRIAC dimming signal detection and conversion circuit, the TRIAC dimmer is electrically connected with the TRIAC dimming signal detection and conversion circuit, and the output end of the TRIAC dimming signal detection and conversion circuit is electrically connected with the first input end of the signal processing control circuit.
As a further preferable technical scheme of the above technical scheme, the PWM dimming circuit includes a PWM dimming signal and a PWM dimming signal conversion circuit, an input end of the PWM dimming signal conversion circuit is connected with the PWM dimming signal, and an output end of the PWM dimming signal conversion circuit is electrically connected with the second input end of the signal processing control circuit.
As a further preferable technical scheme of the technical scheme, the 0-10V dimming circuit comprises a 0-10V dimming signal and a 0-10V dimming signal conversion circuit, wherein an input end of the 0-10V dimming signal conversion circuit is connected with the 0-10V dimming signal, and an output end of the 0-10V dimming signal conversion circuit is electrically connected with a fourth input end of the signal processing control circuit.
As a further preferable aspect of the foregoing technical solution, the resistive dimming circuit includes a resistive dimming signal and a resistive dimming signal conversion circuit, an input end of the resistive dimming signal conversion circuit is connected to the resistive dimming signal, and an output end of the resistive dimming signal conversion circuit is electrically connected to a fifth input end of the signal processing control circuit.
As a further preferable aspect of the foregoing technical solution, the wireless dimming circuit includes a wireless dimming signal, and the wireless dimming signal is electrically connected to the third input end of the signal processing control circuit.
Drawings
Fig. 1 is a schematic diagram of an intensive dimming LED driving power supply of the present utility model.
Fig. 2 is a diagram of an EMC filter and rectifier circuit, a high PF constant voltage flyback control circuit, a high PF constant voltage flyback conversion circuit, and a TRIAC dimming compensation circuit of the present utility model for an intensive dimming LED driving power supply.
Fig. 3 is a diagram of an LED drive control circuit and LED voltage detection circuit for an intensive dimming LED drive power supply of the present utility model.
Fig. 4 is a schematic diagram of an auxiliary power supply for an intensive dimming LED driving power supply of the present utility model.
Fig. 5 is a signal processing control circuit diagram of an intensive dimming LED driving power supply of the present utility model.
Fig. 6 is a circuit diagram of a TRIAC dimming signal detection and conversion circuit of an intensive dimming LED driving power supply according to the present utility model.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
The utility model discloses an intensive dimming LED driving power supply, and the specific embodiment of the utility model is further described below with reference to the preferred embodiment.
In embodiments of the present utility model, it is noted by those skilled in the art that the alternating current, LED lamp, etc. to which the present utility model relates may be regarded as prior art.
Preferred embodiments.
As shown in fig. 1-6, the utility model discloses an intensive dimming LED driving power supply, which comprises an EMC filtering and rectifying circuit, a high PF constant voltage flyback control circuit, a high PF constant voltage flyback conversion circuit, an auxiliary power supply circuit, a signal processing control circuit, an LED driving control circuit and a dimming signal input circuit, wherein:
the input end of the EMC filtering and rectifying circuit is connected with the input alternating current, the output end of the EMC filtering and rectifying circuit is respectively and electrically connected with the input end of the high-PF constant-voltage flyback control circuit and the input end of the high-PF constant-voltage flyback conversion circuit, and the output end of the high-PF constant-voltage flyback control circuit is electrically connected with the control end of the high-PF constant-voltage flyback conversion circuit;
one path of the output end of the high-PF constant-voltage flyback conversion circuit is electrically connected with the power supply end of the signal processing control circuit through the auxiliary power supply circuit, the other path of the output end of the high-PF constant-voltage flyback conversion circuit is electrically connected with the LED driving control circuit, the output end of the signal processing control circuit is electrically connected with the input end of the LED driving control circuit, and the output end of the LED driving control circuit is connected with an LED lamp;
the dimming signal input circuit comprises a TRIAC dimming circuit, a PWM dimming circuit, a wireless dimming circuit, a 0-10V dimming circuit and a resistance dimming circuit, wherein:
the TRIAC dimming circuit is electrically connected with the first input end of the signal processing control circuit;
the PWM dimming circuit is electrically connected with the second input end of the signal processing control circuit;
the wireless dimming circuit is electrically connected with the third input end of the signal processing control circuit;
the 0-10V dimming circuit is electrically connected with the fourth input end of the signal processing control circuit;
the resistance dimming circuit is electrically connected with the fifth input end of the signal processing control circuit.
Specifically, the TRIAC dimming circuit includes a TRIAC dimmer, a TRIAC dimming signal detection and conversion circuit, and a TRIAC dimming compensation circuit, wherein:
the TRIAC dimmer is connected between the input alternating current and the EMC filtering and rectifying circuit, the output end of the EMC filtering and rectifying circuit is electrically connected with the input end of the TRIAC dimming compensation circuit, the output end of the TRIAC dimming compensation circuit is electrically connected with the TRIAC dimming signal detection and conversion circuit, the TRIAC dimmer is electrically connected with the TRIAC dimming signal detection and conversion circuit, and the output end of the TRIAC dimming signal detection and conversion circuit is electrically connected with the first input end of the signal processing control circuit.
More specifically, the PWM dimming circuit includes a PWM dimming signal and a PWM dimming signal conversion circuit, wherein an input end of the PWM dimming signal conversion circuit is connected to the PWM dimming signal, and an output end of the PWM dimming signal conversion circuit is electrically connected to a second input end of the signal processing control circuit.
Further, the 0-10V dimming circuit comprises a 0-10V dimming signal and a 0-10V dimming signal conversion circuit, wherein the input end of the 0-10V dimming signal conversion circuit is connected with the 0-10V dimming signal, and the output end of the 0-10V dimming signal conversion circuit is electrically connected with the fourth input end of the signal processing control circuit.
Still further, the resistive dimming circuit comprises a resistive dimming signal and a resistive dimming signal conversion circuit, wherein an input end of the resistive dimming signal conversion circuit is connected with the resistive dimming signal, and an output end of the resistive dimming signal conversion circuit is electrically connected with a fifth input end of the signal processing control circuit.
Preferably, the wireless dimming circuit includes a wireless dimming signal, and the wireless dimming signal is electrically connected to the third input terminal of the signal processing control circuit.
For an EMC filtering and rectifying circuit, the circuit comprises an inductor LF1, an inductor LF2 and a rectifying bridge BD1, wherein the input end of the inductor LF1 is connected with alternating current, and the output end of the inductor LF1 is connected with the input end of the rectifying bridge BD1 through the inductor LF 2;
for the high PF constant voltage flyback control circuit, the high PF constant voltage flyback control circuit comprises a controller U1, wherein the output end of the rectifier bridge BD1 is electrically connected with the 6 th pin of the input end of the controller U1 through an inductor L1, a resistor R14, a resistor R15 and a resistor R16 in sequence;
for a high PF constant voltage flyback conversion circuit, the high PF constant voltage flyback conversion circuit comprises a transformer TR1 and a field effect transistor Q3, wherein one end of an inductor L1 is electrically connected with a 1 pin of the transformer TR1, a 5 pin of a controller U1 is electrically connected with a grid electrode of the field effect transistor Q3 through a resistor R12A and a diode D1A, and a drain electrode of the field effect transistor Q3 is connected with the transformer TR1;
for the LED drive control circuit, the LED drive control circuit comprises a controller U3 and a field effect tube Q10, wherein an 8 pin of a transformer TR1 is connected with the controller U3 through the field effect tube Q10, and the output end of the controller U3 is connected with an LED lamp through an inductor LF 3;
for an auxiliary power supply circuit, the auxiliary power supply circuit comprises a power supply chip U2, wherein an 8 pin of the transformer TR1 is electrically connected with the input end of the power supply chip U2, and the output end of the power supply chip U2 outputs 3.3V voltage to a signal processing control circuit;
the LED lamp driving circuit further comprises an LED voltage detection circuit, wherein the input end of the LED voltage detection circuit is connected between the LED driving control circuit and the LED lamp, and the input end of the LED voltage detection circuit is connected with the acquisition end of the signal processing control circuit.
The signal processing control circuit comprises a controller U4, and is respectively connected with a wireless dimming signal (connected with pins 16, 17 and 18 of the controller U4), a resistance dimming signal (connected with pin 12 of the controller U4), a 0-10V dimming signal (connected with pin 11 of the controller U4 through a resistor R140), a PWM dimming signal (PWM_Wire) and a TRIAC dimming signal (PWM_Triac) at the input ends of the controller U4.
For the PWM dimming signal conversion circuit, including the photocouplers OP3 and OP4, the input PWM dimming signal is converted to output pwm_wire to the controller U4.
The TRIAC dimming signal detection conversion circuit includes a photo coupler OP1 that converts an input RIAC dimming signal to output pwm_triac to the controller U4.
The principle of the utility model is as follows:
firstly, an alternating current power supply outputs half-wave direct current voltage through an EMC filtering and rectifying circuit, the half-wave direct current voltage is input into a high PF constant voltage flyback control circuit and starts to work, and a PWM switching signal is output to drive the high PF constant voltage flyback conversion circuit to output constant direct current voltage. The direct current voltage is input into an LED driving/controlling circuit and an auxiliary power supply circuit, the auxiliary power supply circuit outputs 3.3V direct current voltage to provide working voltage for the signal processing control circuit, the signal processing control circuit recognizes dimming signals input differently, performs classification and integration processing, outputs 5-100% PWM dimming signals to the LED driving/controlling circuit, and the LED driving/controlling circuit works to light an LED lamp.
The wireless dimming signal is directly input into a signal processing control circuit for processing, and the signal processing control circuit outputs 5-100% PWM dimming signals to a post-stage circuit.
The PWM dimmer, the 0-10V dimmer, the resistive dimmer output respective dimming signals, and then output 3.3V dimming signals through respective signal conversion circuits. Then the signal is input into a signal processing control circuit for processing, and the signal processing control circuit outputs 5-100% PWM dimming signals to a post-stage circuit.
When the circuit is connected into the TRIAC dimmer to perform dimming operation, the TRIAC dimmer outputs alternating current with a phase angle change, the TRIAC dimming signal detection and conversion circuit converts the input alternating current with the phase angle change into a PWM signal, the PWM signal is input into the signal processing control circuit for processing, and the signal processing control circuit outputs 5-100% PWM dimming signals corresponding to the phase angle of the alternating current to the later-stage circuit. When the TRIAC dimmer is regulated to the minimum brightness, the TRIAC working current is small, and in order to maintain the stability of the TRIAC dimming, the TRIAC dimming compensation circuit works to properly increase the working current of the TRIAC, so that the phase of the output alternating current of the TRIAC dimmer is kept stable.
The utility model has the advantages that:
1. compatible with different types of dimmers and dimming signals: compatible TRIAC dimmers, PWM dimmers and wireless dimmers, 0-10V dimmers, resistive dimmers.
2. The installation is simple and convenient, and the original circuit is not required to be changed;
3. the input voltage range is wide, and the standby power consumption is low.
It should be noted that technical features such as alternating current and LED lamp related to the present application should be regarded as the prior art, and specific structures, working principles, and control modes and spatial arrangement related to the technical features may be selected conventionally in the art, and should not be regarded as the utility model point of the present application, which is not further specifically expanded and detailed.
Modifications of the embodiments described above, or equivalents of some of the features may be made by those skilled in the art, and any modifications, equivalents, improvements or etc. within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.
Claims (6)
1. The intensive dimming LED driving power supply is characterized by comprising an EMC filtering and rectifying circuit, a high PF constant voltage flyback control circuit, a high PF constant voltage flyback conversion circuit, an auxiliary power supply circuit, a signal processing control circuit, an LED driving control circuit and a dimming signal input circuit, wherein:
the input end of the EMC filtering and rectifying circuit is connected with the input alternating current, the output end of the EMC filtering and rectifying circuit is respectively and electrically connected with the input end of the high-PF constant-voltage flyback control circuit and the input end of the high-PF constant-voltage flyback conversion circuit, and the output end of the high-PF constant-voltage flyback control circuit is electrically connected with the control end of the high-PF constant-voltage flyback conversion circuit;
one path of the output end of the high-PF constant-voltage flyback conversion circuit is electrically connected with the power supply end of the signal processing control circuit through the auxiliary power supply circuit, the other path of the output end of the high-PF constant-voltage flyback conversion circuit is electrically connected with the LED driving control circuit, the output end of the signal processing control circuit is electrically connected with the input end of the LED driving control circuit, and the output end of the LED driving control circuit is connected with an LED lamp;
the dimming signal input circuit comprises a TRIAC dimming circuit, a PWM dimming circuit, a wireless dimming circuit, a 0-10V dimming circuit and a resistance dimming circuit, wherein:
the TRIAC dimming circuit is electrically connected with the first input end of the signal processing control circuit;
the PWM dimming circuit is electrically connected with the second input end of the signal processing control circuit;
the wireless dimming circuit is electrically connected with the third input end of the signal processing control circuit;
the 0-10V dimming circuit is electrically connected with the fourth input end of the signal processing control circuit;
the resistance dimming circuit is electrically connected with the fifth input end of the signal processing control circuit.
2. The intensive dimming LED driving power supply as claimed in claim 1, wherein the TRIAC dimming circuit comprises a TRIAC dimmer, a TRIAC dimming signal detection switching circuit, a TRIAC dimming compensation circuit, wherein:
the TRIAC dimmer is connected between the input alternating current and the EMC filtering and rectifying circuit, the output end of the EMC filtering and rectifying circuit is electrically connected with the input end of the TRIAC dimming compensation circuit, the output end of the TRIAC dimming compensation circuit is electrically connected with the TRIAC dimming signal detection and conversion circuit, the TRIAC dimmer is electrically connected with the TRIAC dimming signal detection and conversion circuit, and the output end of the TRIAC dimming signal detection and conversion circuit is electrically connected with the first input end of the signal processing control circuit.
3. The intensive dimming LED driving power supply according to claim 2, wherein the PWM dimming circuit comprises a PWM dimming signal and a PWM dimming signal conversion circuit, an input terminal of the PWM dimming signal conversion circuit is connected to the PWM dimming signal and an output terminal of the PWM dimming signal conversion circuit is electrically connected to the second input terminal of the signal processing control circuit.
4. An intensive dimming LED driving power supply as claimed in claim 3, wherein the 0-10V dimming circuit comprises a 0-10V dimming signal and a 0-10V dimming signal conversion circuit, an input terminal of the 0-10V dimming signal conversion circuit is connected to the 0-10V dimming signal, and an output terminal of the 0-10V dimming signal conversion circuit is electrically connected to a fourth input terminal of the signal processing control circuit.
5. The intensive dimming LED driver of claim 4, wherein the resistive dimming circuit comprises a resistive dimming signal and a resistive dimming signal conversion circuit, an input of the resistive dimming signal conversion circuit is connected to the resistive dimming signal and an output of the resistive dimming signal conversion circuit is electrically connected to a fifth input of the signal processing control circuit.
6. The intensive dimming LED driver of claim 5, wherein the wireless dimming circuit comprises a wireless dimming signal electrically coupled to the third input of the signal processing control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166550.1U CN219577312U (en) | 2023-05-12 | 2023-05-12 | Intensive dimming LED driving power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166550.1U CN219577312U (en) | 2023-05-12 | 2023-05-12 | Intensive dimming LED driving power supply |
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| Publication Number | Publication Date |
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| CN219577312U true CN219577312U (en) | 2023-08-22 |
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| CN202321166550.1U Active CN219577312U (en) | 2023-05-12 | 2023-05-12 | Intensive dimming LED driving power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117998698A (en) * | 2024-01-18 | 2024-05-07 | 东莞市倍祺电子科技有限公司 | Double-compatible dimming power supply and control method thereof |
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2023
- 2023-05-12 CN CN202321166550.1U patent/CN219577312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117998698A (en) * | 2024-01-18 | 2024-05-07 | 东莞市倍祺电子科技有限公司 | Double-compatible dimming power supply and control method thereof |
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