CN110602830A - LED drive control device and LED lamp - Google Patents
LED drive control device and LED lamp Download PDFInfo
- Publication number
- CN110602830A CN110602830A CN201910941071.4A CN201910941071A CN110602830A CN 110602830 A CN110602830 A CN 110602830A CN 201910941071 A CN201910941071 A CN 201910941071A CN 110602830 A CN110602830 A CN 110602830A
- Authority
- CN
- China
- Prior art keywords
- module
- driving
- control
- voltage
- signal
- 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.)
- Granted
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
An LED drive control device and an LED lamp comprise a key module, a control module, a first drive module, a second drive module, a cold white lighting module and a warm white lighting module; the key module generates a key signal according to user input; the control module generates a first control signal with a first duty ratio and a second control signal with a second duty ratio according to the duration of the key signal; the first driving module generates a first driving signal according to the first control signal; the second driving module generates a second driving signal according to the second control signal; the cold white lighting module emits light according to the first driving signal; the warm white lighting module emits light according to the second driving signal; the color temperature adjustment of the lighting module is realized, so that the LED drive control device and the LED lamp can adapt to different lighting requirements in the specific application process, the practicability and the reliability of the LED drive control device and the LED lamp are improved, the operation is convenient, and the cost is low.
Description
Technical Field
The invention belongs to the technical field of LED lighting, and particularly relates to an LED driving control device and an LED lamp.
Background
At present, with the development of the technology, a brand new Light Emitting technology, namely, an LED (Light Emitting Diode), is applied to an LED lamp, and as the color temperature of the LED reaches an unprecedented height, approaches or even exceeds the color temperature of white Light, the power consumption is lower, the reliability is better, the service life is longer and more durable, the environment is more protected, and the LED lamp is popular in the market.
However, most of the existing LED lighting drivers are a single driver or two drivers, and when multiple drivers need to be driven by output control, multiple control chips are needed to control corresponding LED lighting driving circuits, or an output selector is used for selection control, so that the circuit design and structure are complex, the cost is high, the reliability is reduced, color temperature adjustment cannot be performed, and the practicability is poor.
Therefore, the traditional technical scheme has the problems of complex circuit design and structure, higher cost, low reliability, incapability of adjusting color temperature and poor practicability for driving the multipath LED.
Disclosure of Invention
In view of this, embodiments of the present invention provide an LED driving control device and an LED lamp, aiming to solve the problems of complicated circuit design and structure, high cost, low reliability, incapability of color temperature adjustment, and poor practicability in driving a plurality of paths of LEDs in the conventional technical scheme.
A first aspect of an embodiment of the present invention provides an LED driving control apparatus, including:
the key module is used for generating a key signal according to user input;
the control module is connected with the key module and used for generating a first control signal with a first duty ratio and a second control signal with a second duty ratio according to the duration of the key signal;
the first driving module is connected with the control module and used for generating a first driving signal according to the first control signal;
the second driving module is connected with the control module and used for generating a second driving signal according to the second control signal;
the cold white lighting module is connected with the first driving module and used for emitting light according to the first driving signal;
and the warm white lighting module is connected with the second driving module and used for emitting light according to the second driving signal.
In one embodiment, the LED driving control apparatus further includes:
the plurality of third driving modules are connected with the control modules and used for generating third driving signals according to third control signals;
the plurality of single-color lighting modules are connected with the third driving module and used for emitting light according to the third driving signal;
the control module is further configured to generate a plurality of third control signals according to the key signal.
In one embodiment, the LED driving control apparatus further includes:
the plurality of fourth driving modules are connected with the control modules and used for generating fourth driving signals according to the fourth control signals;
a plurality of floodlighting modules which are connected with the fourth driving module and are used for emitting light according to the fourth driving signal;
the control module is further configured to generate a plurality of fourth control signals according to the key signal.
In one embodiment, the LED driving control apparatus further includes:
the power supply module is connected with the first driving module and the second driving module and used for providing power supply voltage;
and the voltage transformation and stabilization module is connected with the power supply module and the control module and is used for performing voltage conversion and voltage stabilization on the power supply voltage so as to generate working voltage to supply power to the control module.
In one embodiment, the LED driving control apparatus further includes:
the voltage detection module is connected with the control module and the power supply module and is used for detecting the power supply voltage to generate a voltage detection signal;
the control module is further configured to generate a third control signal according to the voltage detection signal.
In one embodiment, the LED driving control apparatus further includes:
the charging detection module is connected with the power supply module and used for detecting charging voltage to generate a charging detection signal;
the charging protection module is connected with the charging detection module and the power supply module and is used for performing charging protection on the power supply module;
the control module is further used for generating a third control signal according to the charging detection signal;
the power module is also used for charging according to the charging voltage.
In one embodiment, the first and second drive modules each comprise a drive unit; the driving unit comprises a first resistor, a second resistor, a third resistor, a first buck converter, a first diode, a first capacitor and a first inductor;
a first end of the first resistor, a first end of the second resistor, a cathode of the first diode, a voltage input end of the first buck converter and a first end of the first capacitor are connected with a first power supply voltage, a second end of the first resistor and a second end of the second resistor are connected with a current detection end of the first buck converter, a second end of the first capacitor is connected with a power ground, a sensing end of the first buck converter is connected with a second end of the first inductor, a brightness control end of the first buck converter is connected with a first end of the third resistor, and a second end of the third resistor and a ground end of the first buck converter are connected with the power ground;
the brightness control end of the first buck converter is a control signal input end of the driving unit;
the second end of the first resistor and the first end of the first inductor jointly form a driving signal output end of the driving unit.
In one embodiment, the control module comprises a microprocessor;
the power supply end of the microprocessor is connected with a first working voltage, and the power supply negative end of the microprocessor is connected with a power ground;
the first general input and output end of the microprocessor is a first control signal output end of the control module;
the second general input-output end of the microprocessor and the third general input-output end of the microprocessor are jointly formed into a third control signal output end of the control module;
the fourth general input-output end of the microprocessor and the fifth general input-output end of the microprocessor are jointly formed into a fourth control signal output end of the control module;
the sixth universal input and output end of the microprocessor is a second control signal output end of the control module;
a seventh general input/output end of the microprocessor is an indication signal output end of the control module;
an eighth general input/output end of the microprocessor is a voltage detection signal input end of the control module;
a ninth general input/output end of the microprocessor is a charging detection signal input end of the control module;
and the tenth general input/output end of the microprocessor is a key signal input end of the control module.
In one embodiment, the voltage transformation and stabilization module comprises a first voltage stabilization chip, a second capacitor and a third capacitor;
the first end of the second capacitor and the voltage input end of the first voltage stabilizing chip are connected with a second power supply voltage, the ground end of the first voltage stabilizing chip, the second end of the second capacitor and the second end of the third capacitor are connected with a power ground, and the voltage output end of the first voltage stabilizing chip is connected with the first end of the third capacitor;
and the voltage output end of the first voltage stabilizing chip is the working voltage output end of the voltage transformation and stabilization module.
A second aspect of the embodiments of the present invention provides an LED lamp, which includes the LED driving control device described above.
In the embodiment of the invention, the key module is used for generating the key signal, the control module is used for generating a first control signal with a first duty ratio and a second control signal with a second duty ratio according to the duration of the key signal, the first drive module is used for generating a first drive signal according to the first control signal to drive the cold white lighting module to emit light, the second drive module is used for generating a second drive signal according to the second control signal to drive the warm white lighting module to emit light, so that the color temperature of the lighting module is adjusted, and because of the light emission with different color temperatures, the illumination penetration capacity is different, the capacity of the warm color light to penetrate through the object for illumination is larger than that of the cold color light, therefore, the LED driving control device can adapt to different illumination requirements in the specific application process by adjusting the luminous color temperature, the practicability and the reliability of the LED driving control device are improved, the operation is convenient, and the cost is lower; meanwhile, the multi-path LEDs are controlled and driven by the one-path controller to carry out highlight, working light, explosion, flash, warning, illumination and the like, the circuit design and the structure are simple, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an LED driving control apparatus according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of an example of a driving unit of an LED driving control apparatus according to an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of an example of a control module of an LED driving control apparatus according to an embodiment of the present invention;
fig. 10 is a schematic circuit diagram of an example of a voltage transforming and stabilizing module of an LED driving control apparatus according to an embodiment of the present invention;
fig. 11 is a schematic circuit diagram of an example of a power module, a voltage detection module, a charge detection module, and a charge protection module of an LED driving control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a schematic structural diagram of an LED driving control device according to an embodiment of the present invention shows only parts related to the embodiment for convenience of description, and the details are as follows:
the LED driving control device comprises a key module 11, a control module 12, a first driving module 13, a second driving module 14, a cold white lighting module 15 and a warm white lighting module 16.
The key module 11 is used for generating a key signal according to user input; the control module 12 is connected to the key module 11, and configured to generate a first control signal with a first duty ratio and a second control signal with a second duty ratio according to a duration of the key signal; the first driving module 13 is connected with the control module 12 and is used for generating a first driving signal according to the first control signal; the second driving module 14 is connected to the control module 12 and configured to generate a second driving signal according to the second control signal; the cold white lighting module 15 is connected with the first driving module 13 and is used for emitting light according to a first driving signal; the warm white lighting module 16 is connected to the second driving module 14 for emitting light according to the second driving signal.
In a specific implementation, the key module 11 includes at least one tact switch (key switch), and different action states of the tact switch (key switch) of the key module 11 operated by a user may correspond to generate different key signals. Optionally, a relationship table of one-to-one correspondence between key signals generated by operating keys of the key module 11 by a user and control signals is pre-stored in the control module 12, when the control module 12 receives the key signals, the preset relationship table is queried according to durations of the key signals to generate first control signals of a first duty ratio and second control signals of a second duty ratio, the first driving module 13 generates first driving signals according to the first control signals of the first duty ratio to drive the cold white lighting module 15 to emit light, specifically, the first driving module 13 adjusts current output to the cold white lighting module 15 according to the first control signals of the first duty ratio, so as to adjust a light emitting color temperature of the cold white lighting module 15. The second driving module 14 controls the second driving module 14 to adjust the color temperature of the warm white lighting module 16 according to the second control signal with the second duty ratio, and the first driving module 13 adjusts the light emitting color temperature of the cold white lighting module 15 according to the first control signal with the first duty ratio. Because the luminous of different colour temperatures, its illumination penetrability is different, and the luminous ability that pierces through the object and throw light on of warm chromatic light is greater than cold chromatic light, consequently through adjusting luminous colour temperature for LED drive control device can adapt to the different lighting demands among the specific application process, has improved LED drive control device's practicality, and convenient operation, and the cost is lower.
Referring to fig. 2, in one embodiment, the LED driving control device further includes a plurality of third driving modules 17 and a plurality of single-color lighting modules 18
The plurality of third driving modules 17 are connected with the control module 12 and used for generating third driving signals according to third control signals; a plurality of single-color lighting modules 18 are connected to the third driving module 17 for emitting light according to a third driving signal; the control module 12 is further configured to generate a plurality of third control signals according to the key signal.
In a specific implementation, the plurality of third driving modules 17 are correspondingly controlled by the plurality of third control signals, and the plurality of single-color lighting modules 18 are driven by the plurality of third driving signals. Optionally, the first single-color lighting module 18 includes a red LED, the second single-color lighting module 18 includes a blue LED, and the control module 12 controls the red LED and the blue LED to emit light for illumination, so as to illuminate with different colors of light and indicate different states.
Referring to fig. 3, in one embodiment, the LED driving control device further includes a plurality of fourth driving modules 19 and a plurality of flood lighting modules 20.
A plurality of fourth driving modules 19 connected to the control module 12 for generating fourth driving signals according to the fourth control signals; a plurality of floodlighting modules 20 connected to the fourth driving module 19 for emitting light according to the fourth driving signal; the control module 12 is further configured to generate a plurality of fourth control signals according to the key signal.
In a specific implementation, optionally, the plurality of flood lighting modules 20 each include a flood LED, and the control module 12 controls the plurality of flood lighting modules to emit light for lighting. The installation positions of the plurality of floodlight LEDs are combined, for example, the floodlight LEDs are installed at the side positions of the main lighting LEDs, so that the auxiliary main lighting LEDs can be used for performing floodlight lighting, omnibearing lighting is realized, and the reliability and the practicability of the LED drive control device are improved.
Please refer to fig. 4, in one embodiment, the LED driving control apparatus further includes a power module 21 and a voltage transforming and stabilizing module 22.
The power module 21 is connected with the first driving module 13 and the second driving module 14 and is used for providing a power supply voltage; the transforming and voltage-stabilizing module 22 is connected to the power module 21 and the control module 12, and is configured to perform voltage conversion and voltage stabilization on the power supply voltage to generate a working voltage for supplying power to the control module 12.
In specific implementation, the voltage values of the power supply voltage and the operating voltage may be the same or different. When the voltage values of the power supply voltage and the working voltage are different, the power supply voltage output by the power supply module 21 can be subjected to voltage conversion and voltage stabilization through the voltage transformation and stabilization module 22 to output a stable working voltage to supply power to the control module 12, and the power supply voltage is used for supplying power to the driving modules (the first driving module 13, the second driving module 14, the plurality of third driving modules 17 and the plurality of fourth driving modules 14) to drive the lighting modules (the cold white lighting module 15, the warm white lighting module 16, the plurality of single-color lighting modules 18 and the plurality of floodlighting modules 20) to emit light, so that different types of light-emitting lighting are realized. Optionally, the power module 21 is a lithium battery or a storage battery, and can store and release electric energy, and can be charged to implement repeated applications. Utilize power module 21 to supply power to each functional module, satisfy different functional module's power consumption demand, avoid utilizing different power to supply power to control module 12 and drive module simultaneously, practice thrift the cost, circuit structure is simple.
Referring to fig. 5, in one embodiment, the LED driving control apparatus further includes a voltage detection module 23.
The voltage detection module 23 is connected with the control module 12 and the power supply module 21, and is used for detecting the power supply voltage to generate a voltage detection signal; the control module 12 is further configured to generate a third control signal according to the voltage detection signal.
In a specific implementation, the voltage detection module 23 detects the battery voltage of the power module 21 to generate a voltage detection signal, the control module 12 analyzes and calculates the electric quantity of the battery according to the voltage detection signal, when the battery capacity calculated by the control module 12 according to the voltage detection signal is lower than the first preset capacity value, a third control signal is generated to control the third driving module 17 to drive the monochromatic lighting module 18 to warn and illuminate the low-battery condition, so as to remind the user to charge the battery in time, when the battery power calculated by the control module 12 according to the voltage detection signal is lower than the second preset power value, the generation of the third control signal to turn off the output of the third driving module 17 by the control module 12 can be stopped, so as to prevent the over-discharge of the battery, causing the damage of the battery, therefore, the service life of the battery is influenced, and the service life of the LED drive control device is influenced.
Referring to fig. 6, in one embodiment, the LED driving control apparatus further includes a charging detection module 24 and a charging protection module 25.
The charging detection module 24 is connected to the power module 21 and configured to detect a charging voltage to generate a charging detection signal; the charging protection module 25 is connected with the charging detection module 24 and the power supply module 21, and is used for performing charging protection on the power supply module 21; the control module 12 is further configured to generate a third control signal according to the charging detection signal; the power module 21 is also used for charging according to the charging voltage.
In a specific implementation, the charging detection module 24 detects whether there is a charging voltage to charge the battery of the power module 21, and the control module 12 generates a first third control signal according to the charging detection signal to control the first third driving module 17 to generate a third driving signal to drive the single-color LED of the first single-color lighting module 18 to light up for indicating the charging status. Meanwhile, the control module 12 can also judge whether the battery is fully charged according to the charging detection signal and the voltage detection signal, and when the battery is fully charged, generate a second third control signal to control the second third driving module 17 to drive the second monochromatic lighting module 18 to indicate the fully charged state, so that a user can fully and timely know whether the battery is in the charging state and fully charged, the lighting used in the charging state is reduced as much as possible, the service life of the battery is protected, and the practicability and reliability of the LED driving control device are improved. The charge protection module 20 can switch off the charging voltage when the battery is fully charged, thereby preventing overcharging of the battery and further protecting the service life of the battery.
Referring to fig. 7, in one embodiment, the LED driving control device further includes a tail light indication module 26.
The tail light indicating module 26 is connected with the control module 12 and used for indicating according to the indicating signal; the control module 12 is further configured to generate an indication signal according to the key signal.
In a specific implementation, the tail light indication module 26 includes a tail LED lamp, and the control module 12 generates different control signals and indication signals according to the key signal, so as to turn on the LED lamp of the tail light indication module 26. In concrete application, can rationally set up tail lamp indicating module 26's mounted position, realize the suggestion effect of afterbody LED lamp to the third person knows user's position, further improved LED drive control device's practicality.
Referring to fig. 8, in one embodiment, the first driving module 13 and the second driving module 14 include a driving unit 100, and the driving unit 100 includes a first resistor R1, a second resistor R2, a third resistor R3, a first buck converter U3, a first diode D1, a first capacitor C1, and a first inductor L1.
A first end of the first resistor R1, a first end of the second resistor R2, a cathode of the first diode D1, a voltage input end VIN of the first buck converter U3, and a first end of the first capacitor C1 are connected to a first supply voltage, a second end of the first resistor R1 and a second end of the second resistor R2 are connected to a current detection end ISENSE of the first buck converter U3, a second end of the first capacitor C1 is connected to a power ground, a sensing end LX of the first buck converter U3 is connected to a second end of the first inductor L1, a brightness control end VSET of the first buck converter U3 is connected to a first end of the third resistor R3, and a second end of the third resistor R3 and a ground end GND of the first buck converter U3 are connected to the power ground.
The brightness control terminal VSET of the first buck converter U3 is a control signal input terminal of the driving unit 100. The second terminal of the first resistor R1 and the first terminal of the first inductor L1 together constitute a driving signal output terminal of the driving unit 100.
Referring to FIG. 9, in one embodiment, the control module 12 includes a microprocessor U9.
The power supply terminal VDD of the microprocessor U9 is connected to the first operating voltage, and the power supply negative terminal VSS of the microprocessor U9 is connected to power ground.
The first general input/output terminal PA0 of the microprocessor U9 is a first control signal output terminal of the control module 12. The second universal input/output PA2 of the microprocessor U9 and the third universal input/output PA3 of the microprocessor U9 together form a third control signal output of the control module 12. The fourth universal input/output terminal PA4 of the microprocessor U9 and the fifth universal input/output terminal PA5 of the microprocessor U9 together form a fourth control signal output terminal of the control module 12. The sixth general input-output terminal PA7 of the microprocessor U9 is the second control signal output terminal of the control module 12.
The seventh GPIO pin PA6 of the microprocessor U9 is an indication signal output of the control module 12. An eighth GPIO pin PB2 of the microprocessor U9 is a voltage detection signal input of the control module 12. The ninth gpio input/output PB1 of the microprocessor U9 is the charge detection signal input of the control module 12. The tenth GPIO input/output PB0 of the microprocessor U9 is a key signal input for the control module 12.
Referring to fig. 10, in one embodiment, the transformer regulator module 22 includes a first regulator chip U1, a second capacitor C7, and a third capacitor C8.
The first end of the second capacitor C7 and the voltage input end VIN of the first voltage stabilization chip U1 are connected to a second power supply voltage, the ground GND of the first voltage stabilization chip U1, the second end of the second capacitor C7 and the second end of the third capacitor C8 are connected to a power ground, and the voltage output end VOUT of the first voltage stabilization chip U1 is connected to the first end of the third capacitor C8.
The voltage output terminal VOUT of the first voltage regulation chip U1 is an operating voltage output terminal of the transformer voltage regulation module 22.
In a specific implementation, the first power supply voltage VCC _ LED and the second power supply voltage Vin are both the battery voltage VBAT. Alternatively, each of the plurality of third driving modules 17 and the plurality of fourth driving modules 19 may include the driving unit 100 described above. Fig. 11 is a schematic circuit diagram of an example of the voltage detection module 23, the charge detection module 24 and the charge protection module 25 of the LED driving control device.
In particular embodiments, the cool white lighting module 15 includes a cool white LED (LED1), the warm white lighting module 16 includes a warm white LED (LED2), the first single-color lighting module 18 includes a red LED (rled), the second single-color lighting module 18 includes a blue LED (bled), the first flood lighting module 20 includes a first flood LED (F _ LED1), and the second flood lighting module 20 includes a second flood LED (F _ LED 2).
The operation principle of the LED driving control device will be briefly described with reference to fig. 8 to 11 as follows:
1. the first voltage regulation chip U1 is a three-terminal voltage regulation chip, and the battery voltage VBAT (supply voltage) generates a stable 2.8V or 5V operating voltage to supply power to the microprocessor U9.
2. Resistance R03 and resistance R04 of voltage detection module 23 are the sampling circuit of battery voltage VBAT, sample battery voltage VBAT and generate voltage detection signal and export to the eighth general input/output terminal PB2 of microprocessor U9 and carry out AD sampling, carry out battery power through microprocessor U9 and calculate, low-power warning illumination is carried out through red light LED (RLED) again, remind the customer in time to charge, turn off the output when battery power is less than the second and predetermine the electric quantity value simultaneously, prevent that the battery from discharging and arousing the battery damage, realize undervoltage protection.
3. A tenth general input/output terminal PB0 of the microprocessor U9 inputs different key signals generated according to the actions of the key switches operated by the user, the microprocessor U9 generates a first control signal with a first duty ratio and a second control signal with a second duty ratio according to the key signals, and outputs a first control signal LED1-PWM from a first general input/output terminal PA0 of the microprocessor U9 to control the first buck converter U3 of the driving unit 100 of the first driving module 13 to output the first drive signal to drive the on/off of the cold white LED (LED1), and outputs a second control signal LED2-PWM from a sixth general input/output terminal PA7 of the microprocessor U9 to control the first buck converter U3 of the driving unit 100 of the second driving module 14 to output the second drive signal to drive the on/off of the warm white LED (LED 2); the fifth general input/output terminal PA5 of the microprocessor U9 outputs a first fourth control signal F1-CTRL to control the first buck converter U3 of the driving unit 100 of the first fourth driving module 19-1 to output a first fourth driving signal for driving the first floodlight LED (F _ LED1) to turn on or turn off; the fourth universal input/output terminal PA4 of the microprocessor U9 outputs a second fourth control signal F2-CTRL to control the first buck converter U3 of the driving unit 100 of the second fourth driving module 19-2 to output a second fourth driving signal for driving the second floodlight LED (F _ LED2) to turn on or turn off; the second general input/output terminal PA2 of the microprocessor U9 outputs a first third control signal R-CTRL to control the first buck converter U3 of the driving unit 100 of the first third driving module 17-1 to output a first third driving signal to drive the red light led (rled) to turn on or turn off; the third universal input/output terminal PA3 of the microprocessor U9 outputs a second third control signal B-CTRL to control the first buck converter U3 of the driving unit 100 of the second third driving module 17-2 to output a second third driving signal to drive the blue led (bled) to turn on or off. The controller is used for controlling the switching of the lighting functions of the LEDs of the lighting modules. The circuit where the first U3 buck converter is located is a constant current driving circuit.
4. Color temperature adjustment: a cool white LED (LED1) is a cool white light source, a warm white LED (LED2) is a warm white light source, the cold white light source can be controlled to be on when the lamp is turned on for the first time, when the microprocessor U9 receives a key signal input from the key module 11, the microprocessor U9 generates a first control signal with a first duty ratio and a second control signal with a second duty ratio according to the duration of the key signal, by controlling the first and second driving modules 13 and 14 to adjust the current flowing through the cold white LED (LED1) and the warm white LED (LED2) according to the first and second duty cycles respectively, namely, the color temperature of the luminous illumination can be correspondingly adjusted, for example, the color temperature of the full cool white is adjusted to the color temperature of the full warm white in six seconds, in the adjusting process, the color temperature adjusting process can be stopped at any time according to the key signals, so that the cold white LED and the warm white LED are simultaneously lightened, different color temperature ratios are realized, and the color temperature adjustment is further realized.
A second aspect of the embodiments of the present invention provides an LED lamp, including the above-mentioned LED driving control device.
The LED lamp provided by the embodiment of the invention can realize adjustable lighting color temperature to adapt to different lighting requirements in a specific application process, and can control the multiple paths of LED driving circuits through one path of controller to light different LEDs to emit light, realize strong light, working light, explosion lighting, tail lamp lighting indication, floodlight, red and blue warning lighting and the like, and the LED lamp is simple in circuit structure, convenient to operate and cost-saving.
Reference throughout the specification to "various embodiments," "in an embodiment," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in various embodiments," "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with features, structures, or characteristics of one or more other embodiments without presuming that such combination is not an illogical or functional limitation.
Although certain embodiments have been described above with a certain degree of particularity, those skilled in the art could make numerous alterations to the disclosed embodiments without departing from the scope of this disclosure. Joinder references (e.g., attached, coupled, connected, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. Thus, connection references do not necessarily imply that two elements are directly connected/coupled and in a fixed relationship to each other. The use of "for example" throughout this specification should be interpreted broadly and used to provide non-limiting examples of embodiments of the disclosure, and the disclosure is not limited to such examples. It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes in detail or structure may be made without departing from the disclosure.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An LED drive control device, characterized by comprising:
the key module is used for generating a key signal according to user input;
the control module is connected with the key module and used for generating a first control signal with a first duty ratio and a second control signal with a second duty ratio according to the duration of the key signal;
the first driving module is connected with the control module and used for generating a first driving signal according to the first control signal;
the second driving module is connected with the control module and used for generating a second driving signal according to the second control signal;
the cold white lighting module is connected with the first driving module and used for emitting light according to the first driving signal;
and the warm white lighting module is connected with the second driving module and used for emitting light according to the second driving signal.
2. The LED driving control device according to claim 1, further comprising:
the plurality of third driving modules are connected with the control modules and used for generating third driving signals according to third control signals;
the plurality of single-color lighting modules are connected with the third driving module and used for emitting light according to the third driving signal;
the control module is further configured to generate a plurality of third control signals according to the key signal.
3. The LED driving control device according to claim 1, further comprising:
the plurality of fourth driving modules are connected with the control modules and used for generating fourth driving signals according to the fourth control signals;
a plurality of floodlighting modules which are connected with the fourth driving module and are used for emitting light according to the fourth driving signal;
the control module is further configured to generate a plurality of fourth control signals according to the key signal.
4. The LED driving control device according to claim 1, further comprising:
the power supply module is connected with the first driving module and the second driving module and used for providing power supply voltage;
and the voltage transformation and stabilization module is connected with the power supply module and the control module and is used for performing voltage conversion and voltage stabilization on the power supply voltage so as to generate working voltage to supply power to the control module.
5. The LED driving control device according to claim 4, further comprising:
the voltage detection module is connected with the control module and the power supply module and is used for detecting the power supply voltage to generate a voltage detection signal;
the control module is further configured to generate a third control signal according to the voltage detection signal.
6. The LED driving control device according to claim 4, further comprising:
the charging detection module is connected with the power supply module and used for detecting charging voltage to generate a charging detection signal;
the charging protection module is connected with the charging detection module and the power supply module and is used for performing charging protection on the power supply module;
the control module is further used for generating a third control signal according to the charging detection signal;
the power module is also used for charging according to the charging voltage.
7. The LED driving control device according to claim 1, wherein the first driving module and the second driving module each include a driving unit; the driving unit comprises a first resistor, a second resistor, a third resistor, a first buck converter, a first diode, a first capacitor and a first inductor;
a first end of the first resistor, a first end of the second resistor, a cathode of the first diode, a voltage input end of the first buck converter and a first end of the first capacitor are connected with a first power supply voltage, a second end of the first resistor and a second end of the second resistor are connected with a current detection end of the first buck converter, a second end of the first capacitor is connected with a power ground, a sensing end of the first buck converter is connected with a second end of the first inductor, a brightness control end of the first buck converter is connected with a first end of the third resistor, and a second end of the third resistor and a ground end of the first buck converter are connected with the power ground;
the brightness control end of the first buck converter is a control signal input end of the driving unit;
the second end of the first resistor and the first end of the first inductor jointly form a driving signal output end of the driving unit.
8. The LED driving control device of claim 1, wherein the control module comprises a microprocessor;
the power supply end of the microprocessor is connected with a first working voltage, and the power supply negative end of the microprocessor is connected with a power ground;
the first general input and output end of the microprocessor is a first control signal output end of the control module;
the second general input-output end of the microprocessor and the third general input-output end of the microprocessor are jointly formed into a third control signal output end of the control module;
the fourth general input-output end of the microprocessor and the fifth general input-output end of the microprocessor are jointly formed into a fourth control signal output end of the control module;
the sixth universal input and output end of the microprocessor is a second control signal output end of the control module;
a seventh general input/output end of the microprocessor is an indication signal output end of the control module;
an eighth general input/output end of the microprocessor is a voltage detection signal input end of the control module;
a ninth general input/output end of the microprocessor is a charging detection signal input end of the control module;
and the tenth general input/output end of the microprocessor is a key signal input end of the control module.
9. The LED driving control device according to claim 4, wherein the transformer regulator module comprises a first regulator chip, a second capacitor and a third capacitor;
the first end of the second capacitor and the voltage input end of the first voltage stabilizing chip are connected with a second power supply voltage, the ground end of the first voltage stabilizing chip, the second end of the second capacitor and the second end of the third capacitor are connected with a power ground, and the voltage output end of the first voltage stabilizing chip is connected with the first end of the third capacitor;
and the voltage output end of the first voltage stabilizing chip is the working voltage output end of the voltage transformation and stabilization module.
10. An LED lamp, characterized in that the LED lamp comprises the LED driving control device of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941071.4A CN110602830B (en) | 2019-09-30 | 2019-09-30 | LED drive control device and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941071.4A CN110602830B (en) | 2019-09-30 | 2019-09-30 | LED drive control device and LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110602830A true CN110602830A (en) | 2019-12-20 |
| CN110602830B CN110602830B (en) | 2022-05-17 |
Family
ID=68865166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910941071.4A Active CN110602830B (en) | 2019-09-30 | 2019-09-30 | LED drive control device and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110602830B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996175A (en) * | 2021-05-12 | 2021-06-18 | 深圳市全智芯科技有限公司 | Control circuit and control method for adjusting lighting parameters |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010182661A (en) * | 2009-02-05 | 2010-08-19 | Fine Technix Co Ltd | Sensibility control stand |
| CN103812148A (en) * | 2012-11-08 | 2014-05-21 | 比亚迪股份有限公司 | Mobile power supply |
| CN105578639A (en) * | 2015-12-09 | 2016-05-11 | 浙江凯耀照明股份有限公司 | LED lamp and dimming method thereof |
| CN109831848A (en) * | 2019-03-01 | 2019-05-31 | 深圳市星颖达实业有限公司 | A kind of LED drive circuit and lighting device |
| CN110267388A (en) * | 2019-05-16 | 2019-09-20 | 深圳市海洋王照明工程有限公司 | A kind of high-power intrinsic safety device and explosion-proof lamp |
-
2019
- 2019-09-30 CN CN201910941071.4A patent/CN110602830B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010182661A (en) * | 2009-02-05 | 2010-08-19 | Fine Technix Co Ltd | Sensibility control stand |
| CN103812148A (en) * | 2012-11-08 | 2014-05-21 | 比亚迪股份有限公司 | Mobile power supply |
| CN105578639A (en) * | 2015-12-09 | 2016-05-11 | 浙江凯耀照明股份有限公司 | LED lamp and dimming method thereof |
| CN109831848A (en) * | 2019-03-01 | 2019-05-31 | 深圳市星颖达实业有限公司 | A kind of LED drive circuit and lighting device |
| CN110267388A (en) * | 2019-05-16 | 2019-09-20 | 深圳市海洋王照明工程有限公司 | A kind of high-power intrinsic safety device and explosion-proof lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996175A (en) * | 2021-05-12 | 2021-06-18 | 深圳市全智芯科技有限公司 | Control circuit and control method for adjusting lighting parameters |
| CN112996175B (en) * | 2021-05-12 | 2021-08-24 | 深圳市全智芯科技有限公司 | Control circuit and control method for adjusting lighting parameters |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110602830B (en) | 2022-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8508142B2 (en) | Portable lighting device and method thereof | |
| CN110536506B (en) | LED stroboscopic flashing circuit | |
| CN201836655U (en) | Intelligent flashlight | |
| US9326340B2 (en) | Circuit arrangement for controlling at least one load | |
| US20080074869A1 (en) | Lighting apparatus | |
| TWI507082B (en) | Controller and method for powering light emitting diode light source and portable lighting device | |
| TW201216769A (en) | LED lamp control circuit of module | |
| CN110602830B (en) | LED drive control device and LED lamp | |
| US20100237784A1 (en) | Portable lighting device and method thereof | |
| Pinto et al. | A bidirectional buck-boost converter to supply LEDs from batteries during peak load time | |
| CN202979404U (en) | Light emitting diode light dimming device, light emitting diode lamp and light emitting diode system | |
| CN103152901B (en) | Light emitting diode lamp | |
| CN104754828A (en) | Lighting control method, device and system for LED lamp | |
| KR100886839B1 (en) | Intelligent lighting system | |
| KR200432784Y1 (en) | Portable xenon searchlight having LED lamp | |
| EP2503850B1 (en) | Illumination fixture | |
| TWI420969B (en) | Power-supply-detectable lamp | |
| CN113966052B (en) | Intelligent control circuit | |
| CN201652133U (en) | Infrared sensor solar energy lawn lamp | |
| CN201555134U (en) | Solar energy light-operated lighting device | |
| CN212519488U (en) | High efficiency is adjusted luminance and is mixed colours portable lamp | |
| CN211702491U (en) | Illumination driving circuit with power-off delay control function and lamp | |
| CN110493915B (en) | LED driving device and LED lamp | |
| TWI474760B (en) | Led lamp | |
| CN210183608U (en) | Bluetooth control device of LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |