CN108012384B - LED street lamp timing variable power driving control system - Google Patents
LED street lamp timing variable power driving control system Download PDFInfo
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- CN108012384B CN108012384B CN201810025559.8A CN201810025559A CN108012384B CN 108012384 B CN108012384 B CN 108012384B CN 201810025559 A CN201810025559 A CN 201810025559A CN 108012384 B CN108012384 B CN 108012384B
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- 239000003990 capacitor Substances 0.000 claims description 18
- 238000005070 sampling Methods 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
-
- 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]
-
- 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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a timing variable power driving control system of an LED street lamp, which comprises an AC input end, an EMI filter, a first rectifying filter, a second rectifying filter, an IC integrated control end, a constant current resistor RS, a current limiting resistor R, MOS tube and an LED load, wherein the electronic components are electrically connected in sequence through the following sequence: the LED power control circuit comprises an AC input end, an EMI filter, a first rectifying filter, an IC integrated control end, a current limiting resistor R, MOS pipe, a second rectifying filter and an LED load, so that a loop for lighting the LED load is formed, a constant current shunt resistor RS1 is connected to the upper end 1 of a constant current resistor RS to be used for adjusting constant current power, and the control of the resistor RS1 is completed by an added timing power changing module. The timing power-changing module control system utilizes a time base timing pulse technology to control the on-off of the RS1 in a timing way to control a driving power supply to automatically change the power in a timing way so as to achieve the purpose of saving electric quantity.
Description
Technical Field
The invention relates to the field of LED driving power supplies, in particular to a timing variable power driving control system of an LED street lamp.
Background
The LED driving power supply is well known to adopt an integrated IC to control the oscillation frequency and control the core work of constant current, an IC outputs a control signal to be supplied to an MOS tube through a current limiting resistor R so as to complete effective control, and the MOS tube is conducted and closed according to a control rule to obtain an inductance current and then lighten a load LED. The principle of the driving power supply is partially familiar and need not be described in detail here, and the control of the LED street lamp is constant current and constant power, and the full power is consumed by the full power when the street lamp is always lighted for 10 hours from 6 to 7 points to 6 to 7 points in the evening. It is known that vehicles on roads of 6 to 12 pm generally have a great waste of power consumption and the service life is affected because of almost no power consumption of the vehicle in the middle of the night. Therefore, the street lamp control needs to be modified, so that the power is automatically reduced in the next half of the night to overcome the waste of electric quantity. It is necessary to make corresponding modifications and solutions to this problem.
Disclosure of Invention
In order to solve the technical problems, the invention provides a timing power-variable driving control system of an LED street lamp, which is provided with a timing power-variable module, wherein the timing power-variable module control system utilizes a time-base timing pulse technology to control the on-off of a constant current shunt resistor RS1 in a timing manner so as to control a driving power supply to automatically change the power in a timing manner, so that the purpose of saving electric quantity is achieved. According to the invention, one street lamp can realize full-power operation in the upper half of the night, and automatic half-power reduction operation in the lower half of the night, so that a great deal of electricity consumption is saved, and the service life of the lamp is prolonged. On the basis of the original design, the invention only adds 6 resistors, 2 diodes, 1 MOS tube and 1 timing chip, and has low cost.
The invention is realized by the following technical scheme, the invention provides a LED street lamp timing variable power driving control system, which comprises an AC input end, an EMI filter, a first rectifying filter, a second rectifying filter, an IC integrated control end, a constant current resistor RS, a current limiting resistor R, MOS pipe and an LED load, wherein the electronic components are electrically connected in sequence through the following sequence: the AC input end, the EMI filter, the first rectifying filter, the IC integrated control end, the current limiting resistor R, MOS pipe, the second rectifying filter and the LED load are sequentially connected, so that a loop for lighting the LED load is formed, a timing variable power module is further added, the constant current shunt resistor RS1 is connected to the upper end of the constant current resistor RS and used for adjusting the constant current power in the IC integrated control end, and the constant current shunt resistor RS1 is controlled by the added timing variable power module. The timing power-changing module control system utilizes a time base timing pulse technology to control the on-off of the constant current shunt resistor RS1 at fixed time, so that the driving power supply works from full power in the middle of the night to automatic power reduction in the middle of the next night to reduce the loss of electric quantity.
Preferably, the timing variable power module comprises an AC input end, a rectifying diode D5, a power resistor R2, a power resistor R3, a zener diode D6, a filter capacitor C3, a timing U1, a current limiting resistor R6, a rear pull-down resistor R7, a constant current resistor RS1, a MOS transistor Q2, a signal resistor R4, a front pull-down resistor R5 and an anti-interference capacitor C2; the electronic components are electrically connected in sequence through the following steps: the AC input end, the rectifier diode D5, the power resistor R2, the power resistor R3, the filter capacitor C3 and the voltage-stabilizing diode D6 are connected to the positive electrode pin of the working power supply of the timing U1, and the negative electrode pin of the timing U1 is grounded; an AC input end, a signal resistor R4, a front pull-down resistor R5 and an anti-interference capacitor C2 to a timing UI input end; the output end of the timing UI is connected with the grid electrode of the MOS tube Q2 and the source electrode of the MOS tube Q2 in ground through the current limiting resistor R6, the drain electrode of the MOS tube Q2 is connected with the constant current resistor RS1 to finish full power output, and when the timing UI outputs the low-level MOS tube Q2, the cut-off of the MOS tube Q2 is finished to reduce the power output.
Preferably, in the timing power-variable module, the constant current resistor RS1 is connected to a sampling end of a main circuit constant current signal of the IC integrated control end. The sampling end of the constant current signal of the main circuit can change the constant current power by changing the voltage of the constant current signal; when the power-on work is performed, as the output pin of the timing UI is at a high level, the MOS tube Q2 is conducted to shunt part of the constant current signal at the 2 end to the ground through the RSI and the Q2, so that the sampling voltage of the constant current signal is reduced, the constant current power is increased, namely the full power is output, and when the timing is finished, the ICUI outputs the low-level MOS tube Q2 to cut off the RS1, and the power output is reduced.
Preferably, the Q2 parameter is NPN, the R2R3 power resistor is 33k, the D5 rectifying diode 1N4007, the D6 zener diode parameter is 6.2V, and the filter capacitor C3 is 100uf; the signal resistor R4 is 1M, and the anti-interference capacitor C2 is 10nf; the timing IC U1 is 6-7 hours, the current limiting resistor R6 is 10K, and the constant current resistor RS1 takes a value according to the required power. The beneficial effects of the invention are as follows:
1) The invention adds a timing power-changing module, and the timing power-changing module control system controls the on-off of the constant current shunt resistor RS1 at regular time by utilizing a time base timing pulse technology to control the driving power supply to automatically change the power at regular time so as to achieve the aim of saving electric quantity.
2) According to the invention, one street lamp can realize full-power operation in the upper half of the night, and automatic half-power reduction operation in the lower half of the night, so that a great deal of electricity consumption is saved, and the service life of the lamp is prolonged.
3) On the basis of the original design, the invention only adds 6 resistors, 2 diodes, 1 MOS tube and 1 timing chip, and has low cost.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of the prior art of the present invention;
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principles of the invention will be further described with reference to the drawings and specific examples.
Embodiment 1, see fig. 2, a timing variable power driving control system of an LED street lamp, including an AC input end, an EMI filter, a first rectifying filter, a second rectifying filter, an IC integrated control end, a constant current resistor RS, a current limiting resistor R, MOS pipe, and an LED load, where the above electronic components sequentially form an electrical connection through the following sequence: the AC input end, the EMI filter, the first rectifying filter, the IC integrated control end, the current limiting resistor R, MOS pipe, the second rectifying filter and the LED load are sequentially connected, so that a loop for lighting the LED load is formed, the timing variable power module 10 is further added, the constant current shunt resistor RS1 is connected to the upper end of the constant current resistor RS and is used for adjusting the constant current power, and the constant current shunt resistor RS1 is controlled by the added timing variable power module 10. The timing power-changing module control system utilizes a time base timing pulse technology to control the on-off of the constant current shunt resistor RS1 at fixed time, so that the driving power supply works from full power in the middle of the night to automatic power reduction in the middle of the next night to reduce the loss of electric quantity.
The timing variable power module 10 comprises an AC input end, a rectifier diode D5, a power resistor R2, a power resistor R3, a voltage stabilizing diode D6, a filter capacitor C3, a timing U1, a current limiting resistor R6, a rear pull-down resistor R7, a constant current resistor RS1, a MOS tube Q2, a signal resistor R4, a front pull-down resistor R5 and an anti-interference capacitor C2; the electronic components are electrically connected in sequence through the following steps: the AC input end, the rectifier diode D5, the power resistor R2, the power resistor R3, the filter capacitor C3 and the voltage-stabilizing diode D6 are connected to the positive electrode pin of the working power supply of the timing U1, and the negative electrode pin of the timing U1 is grounded; an AC input end, a signal resistor R4, a front pull-down resistor R5 and an anti-interference capacitor C2 to a timing UI input end; the output end of the timing UI is connected with the grid electrode of the MOS tube Q2 and the source electrode of the MOS tube Q2 in ground through the current limiting resistor R6, the drain electrode of the MOS tube Q2 is connected with the constant current resistor RS1 to finish full power output, and when the timing UI outputs the low-level MOS tube Q2, the cut-off of the MOS tube Q2 is finished to reduce the power output.
In the timing power-changing module 10, the constant current resistor RS1 is connected to a sampling end of a main circuit constant current signal of the IC integrated control end. The sampling end of the constant current signal of the main circuit can change the constant current power by changing the voltage of the constant current signal; when the power-on work is performed, as the output pin of the timing UI is at a high level, the MOS tube Q2 is conducted to shunt part of the constant current signal at the 2 end to the ground through the RSI and the Q2, so that the sampling voltage of the constant current signal is reduced, the constant current power is increased, namely the full power is output, and when the timing is finished, the ICUI outputs the low-level MOS tube Q2 to cut off the RS1, and the power output is reduced.
The Q2 parameter is NPN, the R2R3 power resistor is 33K, the D5 rectifying diode 1N4007 and the D6 voltage stabilizing diode parameter are 6.2V, and the filter capacitor C3 is 100uf; the signal resistor R4 is 1M, and the anti-interference capacitor C2 is 10nf; the timing IC U1 is 6-7 hours, the current limiting resistor R6 is 10K, and the constant current resistor RS1 takes a value according to the required power.
The working principle of the timing power-changing module of the invention is as follows: one end of the AC alternating current power supply obtains direct current voltage through a rectifying diode D5, then the voltage is reduced through a power resistor R2 and a power resistor R3 in series connection, the voltage is stably output through voltage limiting of a 6.2V voltage stabilizing diode and filtering of a C3 capacitor, the voltage is supplied to a power pin of a timing UI to enable U1 to work, meanwhile, a signal source takes an AC end, and a smooth signal is obtained through voltage division of a signal resistor R4 and a resistor R5 and anti-interference of a capacitor C2 to enable the timing U1 to start timing. At this time, the output pin of the timing UI is at a high level, the high level flows into the gate of the MOS transistor Q2 through the current limiting resistor R6 to turn on Q2, at this time, the drain of the MOS transistor Q2 is connected to the constant current resistor RS1 to the 1 end of the main chip, at this time, a part of the electric signal at the 1 end of the main chip flows to the ground through RS1 to the MOS transistor 2, at this time, that is, the 1 end of the main chip is connected to the ground through RS and RS1 in parallel to make the main chip work at full power. When the timing time reaches 6 hours, the output low-level MOS transistor Q2 is cut off, the signal at the 1 end of the main chip is cut off from RS1, and if the signal at the 1 end of the main chip is grounded, the power at the moment is half of the full power when the values of the RS and the RS1 are basically the same. The operation of repeating the above actions is only performed after the power is supplied after the power failure.
The other application method of the invention is as follows: the constant current resistor RS1 is not connected with the 1 end of the main circuit, but connected with the 2 end of the main circuit, and the size of the constant current power can be changed by changing the voltage of the constant current signal because the 2 end is the sampling of the constant current signal of the main circuit. When the power-on work is performed, the output pin of the UI is turned on to be a high-level MOS tube Q2, a part of constant current signals at the 2 end are shunted to the ground through the RSI and the Q2, so that the sampling voltage of the constant current signals is reduced, the constant current power is increased, namely the full power is output, when the timing time reaches 6 hours, the output low-level MOS tube Q2 of the UI cuts off the sampling voltage of the RS1 and cuts off the constant current signals, the constant current is reduced, the purpose of reducing the power is achieved, the size of the resistor RS1 is required to be matched with R1, the resistance of the resistor RS1 is temporarily not connected with the RSI, the resistor is adjusted to be half power, the resistor RS1 is connected with the resistor RS1, and the matching adjustment of the RSI and the R1 is completed when the full power is adjusted.
Therefore, after the invention is adopted, one street lamp can realize the automatic half-power reduction work in the middle of the whole power work in the middle of the last night, thereby greatly saving the electricity consumption and prolonging the service life of the lamp. The cost of the patent is very small by adding only 6 resistors, 2 diodes, 1 small MOS transistor and 1 timing chip on the basis of the original design. Therefore, the adoption of the patent can automatically save electric energy and prolong the service life of the product.
Of course, the above description is not limited to the above examples, and the technical features of the present invention that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present invention and not for limiting the same, and the present invention has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present invention and the scope of the appended claims.
Claims (1)
1. The LED street lamp timing variable power driving control system comprises electronic components which are electrically connected in sequence through the following steps: the AC input end, the EMI filter, the first rectifying filter, the IC integrated control end, the current-limiting resistor R, MOS tube, the second rectifying filter and the LED load are sequentially connected, so that a loop for lighting the LED load is formed, and the LED load lighting circuit is characterized in that: the timing power-changing module is further added, and the timing power-changing module uses a constant current shunt resistor RS1 connected to a constant current signal sampling end of a main circuit in an integrated control end of the IC as adjustment for changing constant current power, and a connection point of the constant current shunt resistor RS1 is positioned at the upper end of the constant current resistor RS; the constant current shunt resistor RS1 is controlled by an added timing variable power module; the timing variable power module comprises an AC input end, a rectifier diode D5, a power resistor R2, a power resistor R3, a voltage stabilizing diode D6, a filter capacitor C3, a timing U1, a current limiting resistor R6, a rear pull-down resistor R7, a constant current resistor RS1, a MOS tube Q2, a signal resistor R4, a front pull-down resistor R5 and an anti-interference capacitor C2; the electronic components are electrically connected in sequence through the following steps: the AC input end, the rectifier diode D5, the power resistor R2, the power resistor R3, the filter capacitor C3 and the voltage-stabilizing diode D6 are connected to the positive electrode pin of the working power supply of the timing U1, and the negative electrode pin of the timing U1 is grounded; an AC input end, a signal resistor R4, a front pull-down resistor R5 and an anti-interference capacitor C2 to a timing U1 input end; the output end of the timing U1 is connected with the grid electrode of the MOS tube Q2 and the source electrode of the MOS tube Q2 in a grounding way through the current limiting resistor R6, the drain electrode of the MOS tube Q2 is connected with the constant current resistor RS1 to finish full power output, and when the timing U1 outputs the low-level MOS tube Q2, the cut-off of the RS1 is finished to reduce the power output.
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| CN201810025559.8A CN108012384B (en) | 2018-01-11 | 2018-01-11 | LED street lamp timing variable power driving control system |
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| CN201810025559.8A CN108012384B (en) | 2018-01-11 | 2018-01-11 | LED street lamp timing variable power driving control system |
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| CN108012384B true CN108012384B (en) | 2023-10-24 |
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