CN209824092U - Three-phase linear control lighting system application circuit - Google Patents
Three-phase linear control lighting system application circuit Download PDFInfo
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- CN209824092U CN209824092U CN201920286698.6U CN201920286698U CN209824092U CN 209824092 U CN209824092 U CN 209824092U CN 201920286698 U CN201920286698 U CN 201920286698U CN 209824092 U CN209824092 U CN 209824092U
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Abstract
The utility model discloses a three-phase linear control lighting system application circuit belongs to the LED lighting technology field. The three-phase linear control lighting system application circuit comprises a power supply, a three-phase rectification module, an LED lamp string, a control module and a constant current module; the power supply, the three-phase rectification module and the LED lamp string are connected in sequence; one end of the control module is connected with the three-phase rectifying module, and the other end of the control module is connected with the LED lamp string through the constant current module. The characteristics of utilizing the three-phase power supply combine three-phase rectifier bridge power transformation technique, and the cooperation LED power consumption requirement, the luminous characteristic of full play LED releases novel three-phase linear control LED illumination application scheme, can make the LED lamp realize not having the stroboscopic, and the power consumption efficiency further improves to production is simplified more.
Description
Technical Field
The utility model relates to a LED lighting technology field, in particular to three-phase linear control lighting system application circuit.
Background
The problems of stroboscopic phenomenon and low power consumption efficiency of single-stage LED linear lighting generally exist in practical application of single-phase (220V) LED linear lighting at present, so that a three-phase (220V, 380V) linear lighting system is produced by aiming at the current three-phase centralized power supply lighting place. The characteristics of utilizing the three-phase power supply combine three-phase rectifier bridge power transformation technique, and the cooperation LED power consumption requirement, the luminous characteristic of full play LED releases novel three-phase linear control LED illumination application scheme, can make the LED lamp realize not having the stroboscopic, and the power consumption efficiency further improves to production is simplified more.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three-phase linear control lighting system application circuit to solve the problem that appears in the background art.
In order to solve the technical problem, the utility model provides a three-phase linear control lighting system application circuit, which comprises a power supply, a three-phase rectifier module, a LED lamp string, a control module and a constant current module; wherein the content of the first and second substances,
the power supply, the three-phase rectification module and the LED lamp string are connected in sequence; one end of the control module is connected with the three-phase rectifying module, and the other end of the control module is connected with the LED lamp string through the constant current module.
Optionally, the power supply is a three-phase power supply, and includes two ways of Y-type power supply and triangular power supply.
Optionally, the line voltage of the three-phase power supply is set according to actual requirements, and the line voltage of the power supply includes 380V, 220V, 127V and 110V; the frequency of the power source includes 50HZ and 60 HZ.
Optionally, the three-phase rectification module is a three-phase rectification bridge and is composed of a rectification diode D1 ~ D6, and when the line voltage is 380V, the inverse voltage of the rectification diode D1 ~ D6 is higher than 1200V.
Optionally, the constant current module includes an active filter circuit for removing an alternating current component in the current.
Optionally, the power supply and the three-phase rectifier bridge are integrated into a three-phase input two-line output LED local power supply network for expanding LED lighting applications.
Optionally, the three-phase power supply can be extended to a multi-phase power supply.
The utility model provides an application circuit of a three-phase linear control lighting system, which comprises a power supply, a three-phase rectifier module, an LED lamp string, a control module and a constant current module; the power supply, the three-phase rectification module and the LED lamp string are connected in sequence; one end of the control module is connected with the three-phase rectifying module, and the other end of the control module is connected with the LED lamp string through the constant current module. The characteristics of utilizing the three-phase power supply combine three-phase rectifier bridge power transformation technique, and the cooperation LED power consumption requirement, the luminous characteristic of full play LED releases novel three-phase linear control LED illumination application scheme, can make the LED lamp realize not having the stroboscopic, and the power consumption efficiency further improves to production is simplified more.
Drawings
FIG. 1 is a schematic diagram of a three-phase linear control lighting system application circuit;
FIG. 2 is a schematic diagram of the power supply configuration;
FIG. 3 is a schematic diagram of a three-phase rectifier module;
FIG. 4 is a schematic illustration of a three-phase alternating current generated by a three-phase power supply;
FIG. 5 is a schematic illustration of a forward alternating current;
fig. 6 is an implementation manner of an application circuit of a three-phase linear control lighting system according to the second embodiment of the present invention.
Detailed Description
The following describes an application circuit of a three-phase linear control lighting system according to the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides a three-phase linear control lighting system application circuit, its structure is as shown in figure 1. The three-phase linear control lighting system application circuit comprises a power supply 1, a three-phase rectification module 2, an LED lamp string 3, a control module 4 and a constant current module 5; specifically, the power supply 1, the three-phase rectification module 2 and the LED lamp string 3 are connected in sequence; one end of the control module 4 is connected with the three-phase rectification module 2, and the other end of the control module is connected with the LED lamp string 3 through the constant current module 5.
Specifically, the power supply 1 is a three-phase power supply, and may use an upper half Y-type power supply mode as shown in fig. 2, or a lower half triangular power supply mode. The voltage of the three-phase power supply is set according to the actual requirements of customers, and 380V, 220V and 110V are generally adopted. The frequency of the power supply is generally 50Hz and 60 Hz. Furthermore, an electric leakage protection device can be arranged at the power supply 1, and a voltage dependent resistor and an electric leakage electromagnetic switch are configured, so that the safety is ensured during power utilization; furthermore, in order to adapt to the current lighting supply voltage of 220V, a 380V/220V three-phase transformer can be configured, and a 380V/380V transformer can also be used.
Specifically, the three-phase rectifier module 2 is a three-phase rectifier bridge, and the structure is shown in fig. 3, the three-phase rectifier bridge is composed of rectifier diodes D1 ~ D6, in order to meet the requirement of high-voltage power utilization, when the line voltage of the power supply 1 is 380V, the reverse phase voltage of the rectifier diodes D1 ~ D6 is higher than 1200V, the current configuration of the rectifier diodes is determined by the power of the LED light string 3, each device in the three-phase rectifier bridge is located in a high-voltage working area, and the distance between the devices must meet the requirement of high-voltage working.
The three-phase power supply generates three-phase alternating current as shown in fig. 4, wherein A, B and C in fig. 4 are three-phase alternating current; the generated three-phase alternating current is rectified into a forward alternating current by the three-phase rectifier bridge, the forward alternating current is composed of direct current and 300Hz alternating current, and the main component of the forward alternating current is direct current, as shown in figure 5. This combined current provides a more desirable supply current for the LED string 3.
The voltage of the LED lamp string 3 needs to be reasonably configured according to the output voltage of the three-phase rectifier bridge and the voltage required by the constant current module 5, so that the normal work of the constant current module 5 is considered, and the optical characteristics of the LED are exerted; the current of the LED lamp string 3 is reasonably configured according to the designed power of the LED lamp string, and a certain margin is generally reserved. The three-phase rectifier bridge can provide an ideal direct current power supply containing only partial alternating current according to the principle of linear LED high voltage and small current. Preferably, the constant current module 5 includes an active filter circuit, and can completely remove a part of ac components, so that the LED string 3 is in an ideal dc working area and fully exerts a high-quality LED light emitting effect.
Preferably, the power supply and the three-phase rectifier bridge are integrated into a three-phase input two-line output LED local power supply network for expanding LED lighting application; the three-phase power supply can be extended to a multi-phase power supply.
The control module 4 simultaneously realizes constant power, over-temperature, overvoltage protection, light control, human body heat release control and human body radar wave control of LED illumination.
Example two
The second embodiment provides an implementation manner of the application circuit of the three-phase linear control lighting system, and the circuit thereof is shown in fig. 6. V1 is a three-phase excitation source, A, B and C are three-phase output ends, and the line voltage is 380V. The voltage waveforms of the three terminals A, B and C are shown in figure 4. The three-phase bridge outputs V +, V-, the voltage waveform of which is shown in fig. 5. The output voltage is an approximate direct current power supply containing only partial alternating current, and the voltage well meets the power utilization requirement of the LED. An LED lamp and a constant current module are connected between the V + and the V-in series. The voltage waveform at the two ends of the LED lamp string is shown in a straight line waveform in FIG. 5, which is a perfect direct current waveform. Because the output voltage of the three-phase rectifier bridge contains an alternating current ripple component, the constant current module adopts an active filter circuit to eliminate the alternating current ripple, and the constant current circuit is added to ensure that the LED lamp string is in a better power utilization state, thereby fully playing the light efficiency characteristic. The following results are obtained through practical tests: the scheme can obtain higher energy efficiency, is suitable for configuration and proper for debugging, and can obtain the power utilization efficiency of 90-95 percent.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (7)
1. The application circuit of the three-phase linear control lighting system is characterized by comprising a power supply, a three-phase rectification module, an LED lamp string, a control module and a constant current module; wherein the content of the first and second substances,
the power supply, the three-phase rectification module and the LED lamp string are connected in sequence; one end of the control module is connected with the three-phase rectifying module, and the other end of the control module is connected with the LED lamp string through the constant current module.
2. The three-phase linear control lighting system application circuit of claim 1, wherein the power supply is a three-phase power supply, comprising a Y-type power supply and a delta-type power supply.
3. The three-phase linear control lighting system application circuit as claimed in claim 2, wherein the line voltage of the three-phase power supply is set according to actual requirements, and the line voltage of the power supply comprises 380V, and the frequencies of 220V and 110V power supplies comprise 50HZ and 60 HZ.
4. The three-phase linear control lighting system application circuit as claimed in claim 1, wherein the three-phase rectification module is a three-phase rectification bridge composed of a rectification diode D1 ~ D6, and the inverse voltage of the rectification diode D1 ~ D6 is higher than 1200V when the line voltage is 380V.
5. The three-phase linear control lighting system application circuit of claim 1, wherein the constant current module comprises an active filter circuit for removing an alternating current component from the current.
6. The three-phase linear control lighting system application circuit of claim 1, wherein the power supply and the three-phase rectifier bridge are integrated into a three-phase input two-wire output LED local power supply network, which is more beneficial to expand LED lighting applications.
7. The three-phase linear control lighting system application circuit of claim 1, wherein the three-phase power supply is scalable to a multi-phase power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920286698.6U CN209824092U (en) | 2019-03-07 | 2019-03-07 | Three-phase linear control lighting system application circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920286698.6U CN209824092U (en) | 2019-03-07 | 2019-03-07 | Three-phase linear control lighting system application circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209824092U true CN209824092U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920286698.6U Active CN209824092U (en) | 2019-03-07 | 2019-03-07 | Three-phase linear control lighting system application circuit |
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| CN (1) | CN209824092U (en) |
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- 2019-03-07 CN CN201920286698.6U patent/CN209824092U/en active Active
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