CN218679439U - Integrated LED light source control module and LED lamp - Google Patents

Abstract

The utility model provides an integrated LED light source control module and LED lamps and lanterns, this integrated LED light source control module includes controller, power supply circuit and at least a set of delay circuit and a set of LED light source module, LED light source module includes pwm control circuit, drive circuit, pwm control circuit is connected with LED chip through drive circuit; the power circuit is connected with the delay circuit, the delay circuit is respectively connected with the pwm control circuit and the drive circuit, and the controller is respectively connected with the power circuit and the pwm control circuit to control the power circuit to output a current signal and send a pwm signal to the pwm control circuit. The utility model discloses to control LED light source module and the delay circuit connection of LED chip, through delay circuit's time delay effect, the time that drive circuit received the electric current is prolonged to make drive circuit drive LED chip luminous after receiving drive current at once, eliminated the problem of LED chip scintillation, promoted the uniformity of LED luminance.

Description

Integrated LED light source control module and LED lamp

Technical Field

The utility model relates to a LED control technical field especially relates to an integrated LED light source control module and LED lamps and lanterns.

Background

LED lamps and lanterns are because high-efficient energy-conserving, low carbon environmental protection, rich in color, long-lived, a great deal of advantage such as security, by wide application in places such as stage performance and movie & TV illumination, LED light source adopts many unification LED chips at present, possess the LED luminous element of a plurality of different colours in the encapsulation of single LED chip promptly, the most common has R (Red), G (Green), B (Blue), four kinds of colour LED luminous elements of W (White) make up into single LED chip encapsulation, commonly known as "RGBW four unification LED chip", general lamps and lanterns light source module comprises many LED chips, through specific circuit connection control, realize multiple LED light efficiency such as monochromatic accuse and single point accuse, in order to satisfy the user demand.

Currently, almost all LED lamps use pulse width modulation (pwm) to control the brightness level. The brightness control is implemented by a pulse width modulation method, i.e. the width of the light pulse (i.e. the duty cycle) is periodically changed, as long as the period of this repeated lighting is short enough, the human eye does not feel that the light emitting pixels are jittering. However, when the LED lamp is powered on, the controller adopts a mode of simultaneously sending the pulse width modulation signal and the current signal, which causes the current signal to be received before the driving circuit always receives the pulse width modulation signal and starts working, and the current signal causes the LED chip to emit light momentarily, which causes the LED lamp to flicker, and reduces the uniformity of the LED brightness.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides an integrated LED light source control module and LED lamps and lanterns will control the LED light source module and the delay circuit connection of LED chip, through delay circuit's time delay effect, the time of drive circuit received the electric current is prolonged to make drive circuit drive the LED chip luminous after receiving drive current at once, eliminated the problem of LED chip scintillation, promoted the uniformity of LED luminance.

In order to solve the above problem, the utility model discloses a technical scheme do: an integrated LED light source control module comprises a controller, a power circuit, at least one group of delay circuits and a group of LED light source modules, wherein each LED light source module comprises a pwm control circuit and a drive circuit, and the pwm control circuit is connected with an LED chip through the drive circuit; the power circuit is connected with the delay circuit, the delay circuit is connected with the pwm control circuit and the drive circuit, and the controller is respectively connected with the power circuit and the pwm control circuit to control the power circuit to output current signals and send pwm signals to the pwm control circuit.

Furthermore, the number of the LED light source modules is 4, and the LED light source modules in different groups control the light emitted by the LED chips to have different colors.

Furthermore, the number of the pwm control circuits and the number of the driving circuits in the LED light source module are 5, and different pwm control circuits and driving circuits in the LED light source module have the same circuit structure.

Furthermore, the group of delay circuits includes a first delay circuit, a second delay circuit, a third delay circuit and a fourth delay circuit which are connected in sequence, and the first delay circuit, the second delay circuit, the third delay circuit and the fourth delay circuit have the same circuit structure.

Further, the first delay circuit comprises a first field effect transistor, a first resistor, a first capacitor and a second resistor, wherein a drain electrode of the first field effect transistor is connected with an input end of one LED light source module, a second end of the first resistor and an output end of the power circuit, a source electrode of the first field effect transistor is connected with an output end of the second delay circuit and an input end of the other LED light source module, a grid electrode of the first delay circuit is connected with a first end of the second resistor, a second end of the second resistor is connected with a first end of the first resistor and a second end of the first capacitor, and a first end of the first capacitor is grounded.

The LED light source module further comprises a voltage stabilizing circuit, the voltage stabilizing circuit connected with the drain electrode of the first field effect transistor comprises a thirteenth capacitor, a fourteenth capacitor, a fifth triode, a fifth diode and an eighteenth resistor, the collector electrode of the fifth triode is connected with the drain electrode of the first field effect transistor, the first end of the eighteenth resistor and the first end of the fourteenth capacitor, the second end of the eighteenth resistor is connected with the base electrode of the fifth triode and the cathode of the fifth diode, the second end of the fourteenth capacitor is connected with the anode of the fifth diode, the second end of the thirteenth capacitor and the pwm control circuit in the LED light source module, and the first end of the thirteenth capacitor is connected with the emitter electrode of the fifth triode and the pwm control circuit.

Further, the pwm control circuit connected to the fifth triode includes a first reverse schmitt trigger, a sixth half-bridge gate driver, a thirty-second resistor, a fourteenth triode, and a fifteenth triode, an input terminal of the first reverse schmitt trigger is connected to the controller, an output terminal of the first reverse schmitt trigger is connected to the HIN pin of the sixth half-bridge gate driver, a VB pin of the sixth half-bridge gate driver is connected to an emitter of the fifth triode and a collector of the fourteenth triode, an HO pin of the sixth half-bridge gate driver is connected to a first end of the thirty-second resistor, a second end of the thirty-second resistor is connected to a base of the fourteenth triode and a base of the fifteenth triode, an emitter of the fourteenth triode is connected to an emitter of the fifteenth triode, and a collector of the fifteenth triode is connected to a driving circuit, a voltage regulator circuit in the LED light source module and a VS pin of the sixth gate half-bridge driver.

Further, the driving circuit comprises a forty-second resistor, a ninth field effect transistor, a forty-third resistor and an eighteenth capacitor, wherein the second end of the forty-second resistor is connected with the collector of the fifteenth triode, the second end of the eighteenth capacitor and the cathode of the LED chip, the source of the ninth field effect transistor is connected with the second end of the forty-second resistor, the drain of the ninth field effect transistor is connected with the first end of the forty-third resistor and the anode of the LED chip, the gate of the ninth field effect transistor is connected with the first end of the forty-second resistor and the emitter of the fifteenth triode, the second end of the thirteenth resistor is connected with the first end of the eighteenth capacitor, and the forty-third resistor and the eighteenth capacitor form an RC filter circuit.

Further, the first capacitor is an electrolytic capacitor, and the eighteenth capacitor is a ceramic capacitor.

Based on the same inventive concept, the utility model also provides a LED lamp, LED lamp includes the LED chip and as above integrated LED light source control module, integrated LED light source control module with the LED chip is connected in order to control the LED chip is luminous.

Compared with the prior art, the beneficial effects of the utility model reside in that: the LED light source module for controlling the LED chip is connected with the delay circuit, and the time of the drive circuit for receiving the current is prolonged through the delay function of the delay circuit, so that the drive circuit drives the LED chip to emit light immediately after receiving the drive current, the problem of LED chip flicker is solved, and the consistency of LED brightness is improved.

Drawings

Fig. 1 is a structural diagram of an embodiment of the integrated LED light source control module of the present invention;

fig. 2 is a structural diagram of another embodiment of the integrated LED light source control module of the present invention;

fig. 3 is a partial circuit diagram of an embodiment of the integrated LED light source control module of the present invention;

fig. 4 is a circuit diagram of an embodiment of an LED chip connected to the integrated LED light source control module according to the present invention;

fig. 5 is a structural diagram of an embodiment of the LED lamp of the present invention.

In the figure: q1, a first field effect transistor; r1, a first resistor; c1, a first capacitor; r2 and a second resistor; c13, a thirteenth capacitor; c14, a fourteenth capacitance; e5, a fifth triode; d5, a fifth diode; r18 and an eighteenth resistor; r17, seventeenth resistor; U1E, a first inverse Schmitt trigger; u6, a sixth half-bridge gate driver; r32, thirty-second resistor; e14, a fourteenth triode; e15, a fifteenth triode; r31, a thirty-first resistance; r32, thirty-third resistance; r42, a forty-second resistor; q9, ninth field effect transistor; r43, a forty-third resistor; c18 and an eighteenth capacitor.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It should be noted that the various embodiments of the present disclosure, described and illustrated in the figures herein generally, may be combined with each other without conflict, and that the structural components or functional modules therein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the present disclosure, presented in the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the scope of protection of the present disclosure.

The terminology used in the description of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1-4, fig. 1 is a structural diagram of an embodiment of an integrated LED light source control module according to the present invention; fig. 2 is a structural diagram of another embodiment of the integrated LED light source control module of the present invention; fig. 3 is a partial circuit diagram of an embodiment of the integrated LED light source control module of the present invention; fig. 4 is a circuit diagram of an embodiment of an LED chip connected to the integrated LED light source control module of the present invention. The integrated LED light source control module of the present invention is described with reference to fig. 1-4.

In this embodiment, the integrated LED light source control module includes a controller, a power circuit, at least one set of delay circuit and a set of LED light source module, where the LED light source module includes a pwm control circuit and a driving circuit, and the pwm control circuit is connected to the LED chip through the driving circuit; the power circuit is connected with the delay circuit, the delay circuit is connected with the pwm control circuit and the drive circuit, and the controller is respectively connected with the power circuit and the pwm control circuit to control the power circuit to output a current signal and send a pwm signal to the pwm control circuit. The driving circuit is connected in series, the controller is a single chip microcomputer or a CPU, and the driving circuit is an MOSFET driving circuit.

In this embodiment, the number of the LED light source modules is 4, and different groups of LED light source modules are connected to different pins of the LED chip to control the LED chip to emit light with different colors. The quantity of the pwm control circuits and the drive circuits in the LED light source modules is 5, and the circuit structures of the pwm control circuits and the drive circuits in different LED light source modules are the same.

In one embodiment, one controller controls two groups of LED light source modules, and the LED chips are controlled to emit light of four colors by the two controllers.

In this embodiment, the group of delay circuits includes a first delay circuit, a second delay circuit, a third delay circuit, and a fourth delay circuit, which are connected in sequence, and the first delay circuit, the second delay circuit, the third delay circuit, and the fourth delay circuit have the same circuit structure, and the delay time of the delay circuit is 3s.

In a specific embodiment, in 4 groups of LED light source modules, the pwm control circuits and the driving circuits of each group of LED light source modules are the same in number. Each delay circuit is connected with two LED light source modules.

In this embodiment, the first delay circuit includes a first field effect transistor Q1, a first resistor R1, a first capacitor C1, and a second resistor R2, a drain of the first field effect transistor Q1 is connected to an input terminal of one LED light source module, a second terminal of the first resistor R1, and an output terminal of the driving circuit, a source is connected to an output terminal of the second delay circuit and an input terminal of another LED light source module, a gate is connected to a first terminal of the second resistor R2, a second terminal of the second resistor R2 is connected to a first terminal of the first resistor R1 and a second terminal of the first capacitor C1, and a first terminal of the first capacitor C1 is grounded. Wherein, the first field effect transistor Q1 is an enhancement type field effect transistor.

In a specific embodiment, the output of the power circuit outputs 36 vdc. And a group of LED light source modules connected with the first delay circuit, the second delay circuit, the third delay circuit and the fourth delay circuit are connected with pins of the LED chip to control the LED chip to emit red light.

In this embodiment, the LED light source module further includes a voltage regulator circuit, the structures of the voltage regulator circuits in different LED light source modules are the same, the voltage regulator circuit connected to the drain of the first field effect transistor Q1 includes a thirteenth capacitor C13, a fourteenth capacitor C14, a fifth triode E5, a fifth diode D5, and an eighteenth resistor R18, a collector of the fifth triode E5 is connected to the drain of the first field effect transistor Q1, a first end of the eighteenth resistor R18, and a first end of the fourteenth capacitor C14, a second end of the eighteenth resistor R18 is connected to a base of the fifth triode E5 and a cathode of the fifth diode D5, a second end of the fourteenth capacitor C14 is connected to an anode of the fifth diode D5, a second end of the thirteenth capacitor C13, and a pwm control circuit in the LED light source module, and a first end of the thirteenth capacitor C13 is connected to an emitter of the fifth triode E5 and the pwm control circuit.

In a specific embodiment, the voltage regulation circuit further includes a seventeenth resistor R17, wherein a first terminal of the seventeenth resistor R17 is connected to the second terminal of the first resistor R1, and a second terminal is connected to the collector of the fifth transistor E5. 15V direct current is provided by a voltage stabilizing circuit.

In this embodiment, the pwm control circuit connected to the fifth transistor E5 includes a first inverse schmitt trigger U1E, a sixth half-bridge gate driver U6, a thirty-second resistor R32, a fourteenth transistor E14, and a fifteenth transistor E15, an input end of the first inverse schmitt trigger U1E is connected to the controller, an output end of the first inverse schmitt trigger U1E is connected to the HIN pin of the sixth half-bridge gate driver U6, a VB pin of the sixth half-bridge gate driver U6 is connected to an emitter of the fifth transistor E5 and a collector of the fourteenth transistor E14, an HO pin of the sixth half-bridge gate driver U6 is connected to a first end of the thirty-second resistor R32, a second end of the thirty-second resistor R32 is connected to a base of the fourteenth transistor E14 and a base of the fifteenth transistor E15, an emitter of the fourteenth transistor E14 is connected to an emitter of the fifteenth transistor E15, and a collector of the fifteenth transistor E15 is connected to a driving circuit, a voltage regulator circuit and a VS pin of the sixth gate driver U6 in the LED light source module. The VCC pin of the sixth half-bridge gate driver U6 is connected with 12V direct current, and the inside of the sixth half-bridge gate driver U6 is controlled by dead time within 100 ns.

In a specific embodiment, the pwm control circuit further includes a thirty-first resistor R31 and a thirty-third resistor R33, the first inverted schmitt trigger U1E is a hexadecimal inverted schmitt trigger, and the slowly varying input signal is converted into a clearly defined, jitter-free output signal by the first inverted schmitt trigger U1E. A first end of the thirty-first resistor R31 is connected to an emitter of the fifth transistor E5, a second end of the thirty-first resistor R31 is connected to a collector of the fourteenth transistor E14, a first end of the thirty-third resistor R33 is connected to an emitter of the fourteenth transistor E14, and a second end of the thirty-third resistor R33 is connected to a gate of the ninth field effect transistor Q9.

In this embodiment, the driving circuit includes a forty-second resistor R42, a ninth field-effect transistor Q9, a forty-third resistor R43, and an eighteenth capacitor C18, wherein a second end of the forty-second resistor R42 is connected to the collector of the fifteenth transistor E15, a second end of the eighteenth capacitor C18, and the cathode of the LED chip, a source of the ninth field-effect transistor Q9 is connected to the second end of the forty-second resistor R42, a drain of the ninth field-effect transistor Q9 is connected to the first end of the forty-third resistor R43 and the anode of the LED chip, a gate of the ninth field-effect transistor Q9 is connected to the first end of the forty-second resistor R42 and the emitter of the fifteenth transistor E15, a second end of the thirteenth resistor is connected to the first end of the eighteenth capacitor C18, and the forty-third resistor R43 and the eighteenth capacitor C18 constitute an RC filter circuit.

In one embodiment, the first capacitor C1 is an electrolytic capacitor and the eighteenth capacitor C18 is a ceramic capacitor.

In this embodiment, the number of power supply circuits for supplying power corresponds to the number of groups of LED light source modules, and one power supply circuit supplies power to two groups of LED light source modules. The LED light source modules powered by different power supply circuits are different. The power supply circuit receives input 48V direct current, converts the direct current into 36V direct current and outputs the direct current to the delay circuit. When the LED lamp is electrified, the controller simultaneously outputs signals to the power circuit and the pwm control circuit to control the power circuit to output direct current and output pwm signals to the pwm control circuit.

Based on the same inventive concept, the utility model discloses still provide a LED lamp, please refer to fig. 5, fig. 5 is the utility model discloses the structure chart of an embodiment of LED lamp, it is right to combine fig. 5 the utility model discloses an intelligent terminal carries out the concrete description.

In this embodiment, the LED lamp includes an LED chip and the integrated LED light source control module according to the above embodiment, and the integrated LED light source control module is connected to the LED chip to control the LED chip to emit light.

In one embodiment, the LED lamp further includes a switching power supply and a display control board, the display control board is provided with a first micro control unit, a first fan driving circuit, a first fan, an ethernet communication module, a data storage module, a key board, a wireless signal receiving module, a motor driving circuit, an internal signal output circuit, a display screen control interface, a USB interface, a DMX signal circuit, and a power supply input circuit, and the first micro control unit is respectively connected to the first fan driving circuit, the ethernet communication module, the data storage module, the key board, the wireless signal receiving module, the motor driving circuit, the internal signal output circuit, the display screen control interface, the USB interface, and the DMX signal circuit. The switch power supply converts input 100-240V alternating current into 48V direct current and outputs the 48V direct current to the power supply circuit and the power supply input circuit, and the power supply input circuit converts direct current voltage into 3.3V direct current through the voltage conversion circuit on the display control panel and outputs the 3.3V direct current to the Ethernet communication module and the first micro control unit. And a battery in the LED lamp supplies power to the DMX signal circuit through a battery control circuit on the display control panel.

In one embodiment, the LED lamp further includes two driving control boards, the integrated LED light source control modules are distributed on the driving control boards, and the number of the integrated LED light source control modules on each driving control board is the same, and the circuit structures are the same.

The drive control board comprises a first drive control board and a second drive control board, wherein the first drive control board is further provided with a first motor, a second fan, a second micro control unit, a vertical motor magnetic encoder, a third micro control unit, a Hall sensor, a first motor drive circuit, a second fan drive circuit, a second motor drive circuit and a second resistor, the second micro control unit is provided with the first motor drive circuit, the second fan drive circuit is respectively operated with the first motor and the second fan, and the electrodes are positioned through the vertical electrode magnetic encoder. The second micro control unit and the third micro control unit are respectively connected with the internal signal output circuit of the first micro control unit to receive internal signals. And the third micro control unit performs scaling positioning through the Hall sensor and presets the second electrode to work through the second electrode driving circuit.

In a specific embodiment, the first micro control unit, the second micro control unit and the third micro control unit are all single-chip microcomputers, and the model number of the single-chip microcomputers is STM32G474RBT6.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An integrated LED light source control module is characterized by comprising a controller, a power supply circuit, at least one group of delay circuits and a group of LED light source modules, wherein each LED light source module comprises a pwm control circuit and a drive circuit, and the pwm control circuit is connected with an LED chip through the drive circuit;

the power circuit is connected with the delay circuit, the delay circuit is connected with the pwm control circuit and the drive circuit, and the controller is respectively connected with the power circuit and the pwm control circuit to control the power circuit to output current signals and send pwm signals to the pwm control circuit.

2. The integrated LED light source control module of claim 1, wherein the number of LED light source modules is 4 groups, and different groups of LED light source modules control different colors of light emitted from the LED chips.

3. The integrated LED light source control module according to claim 1, wherein the number of pwm control circuits and driving circuits in the LED light source module is 5, and the circuit structures of the pwm control circuits and the driving circuits in different LED light source modules are the same.

4. The integrated LED light source control module according to claim 3, wherein the set of delay circuits includes a first delay circuit, a second delay circuit, a third delay circuit, and a fourth delay circuit connected in sequence, and the first delay circuit, the second delay circuit, the third delay circuit, and the fourth delay circuit have the same circuit structure.

5. The integrated LED light source control module of claim 4, wherein the first delay circuit comprises a first field effect transistor, a first resistor, a first capacitor, and a second resistor, wherein a drain of the first field effect transistor is connected to an input terminal of one LED light source module, a second terminal of the first resistor, and an output terminal of the power circuit, a source of the first delay circuit is connected to an output terminal of the second delay circuit and an input terminal of another LED light source module, a gate of the first delay circuit is connected to a first terminal of the second resistor, a second terminal of the second resistor is connected to a first terminal of the first resistor and a second terminal of the first capacitor, and a first terminal of the first capacitor is grounded.

6. The integrated LED light source control module according to claim 5, wherein the LED light source module further comprises a regulator circuit, the regulator circuit connected to the drain of the first fet comprises a thirteenth capacitor, a fourteenth capacitor, a fifth triode, a fifth diode, and an eighteenth resistor, the collector of the fifth triode is connected to the drain of the first fet, a first end of the eighteenth resistor, and a first end of the fourteenth capacitor, a second end of the eighteenth resistor is connected to the base of the fifth triode and the cathode of the fifth diode, a second end of the fourteenth capacitor is connected to the anode of the fifth diode, a second end of the thirteenth capacitor, and the pwm control circuit in the LED light source module, and a first end of the thirteenth capacitor is connected to the emitter of the fifth triode and the pwm control circuit.

7. The integrated LED light source control module of claim 6, wherein the pwm control circuit connected to the fifth transistor comprises a first inverse schmitt trigger, a sixth half-bridge gate driver, a thirty-second resistor, a fourteenth transistor, and a fifteenth transistor, wherein the first inverse schmitt trigger has an input connected to the controller and an output connected to the HIN pin of the sixth half-bridge gate driver, the VB pin of the sixth half-bridge gate driver is connected to the emitter of the fifth transistor and the collector of the fourteenth transistor, the HO pin of the sixth half-bridge gate driver is connected to the first end of the thirty-second resistor, the second end of the thirty-second resistor is connected to the base of the fourteenth transistor and the base of the fifteenth transistor, the emitter of the fourteenth transistor is connected to the emitter of the fifteenth transistor, and the collector of the fifteenth transistor is connected to the drive circuit, the VS, and the pin of the sixth half-bridge gate driver in the LED light source module.

8. The integrated LED light source control module according to claim 7, wherein the driving circuit comprises a forty-second resistor, a ninth fet, a forty-third resistor, and an eighteenth capacitor, wherein a second terminal of the forty-second resistor is connected to a collector of the fifteenth transistor, a second terminal of the eighteenth capacitor, and a cathode of the LED chip, a source of the ninth fet is connected to a second terminal of the forty-second resistor, a drain of the ninth fet is connected to a first terminal of the forty-third resistor and an anode of the LED chip, a gate of the ninth fet is connected to a first terminal of the forty-second resistor and an emitter of the fifteenth transistor, a second terminal of the thirteenth resistor is connected to a first terminal of the eighteenth capacitor, and the forty-third resistor and the eighteenth capacitor form an RC filter circuit.

9. The integrated LED light source control module of claim 8 wherein the first capacitor is an electrolytic capacitor and the eighteenth capacitor is a ceramic capacitor.

10. An LED lamp, comprising an LED chip and the integrated LED light source control module of any one of claims 1-9, wherein the integrated LED light source control module is connected to the LED chip to control the LED chip to emit light.

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