CN214799957U - Silicon controlled rectifier dimming drive circuit, silicon controlled rectifier dimming drive device and lamp - Google Patents
Silicon controlled rectifier dimming drive circuit, silicon controlled rectifier dimming drive device and lamp Download PDFInfo
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- CN214799957U CN214799957U CN202120454210.3U CN202120454210U CN214799957U CN 214799957 U CN214799957 U CN 214799957U CN 202120454210 U CN202120454210 U CN 202120454210U CN 214799957 U CN214799957 U CN 214799957U
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Abstract
The application belongs to the technical field of lamps and provides a silicon controlled dimming driving circuit, a silicon controlled dimming driving device and a lamp, wherein alternating current is accessed through a silicon controlled dimmer, setting a corresponding conduction angle according to the silicon controlled rectifier control signal, rectifying the voltage signal output by the silicon controlled rectifier dimmer by the rectifying module to generate a direct current voltage signal, generating a current driving signal by the driving module according to the direct current voltage signal to drive the light source module to work, then the electricity-taking module takes electricity from the light source module to generate a power supply voltage signal, and the electric leakage protection module receives the power supply voltage signal to achieve the purpose of supplying power to the electric leakage protection module by taking electricity from the light source module, through changing the power supply mode of the leakage protection module, the leakage protection module can be compatible with the silicon controlled rectifier dimmer to normally work, and therefore silicon controlled rectifier dimming is achieved.
Description
Technical Field
The application belongs to the technical field of lamps and lanterns, especially relates to a silicon controlled rectifier drive circuit, silicon controlled rectifier drive arrangement and lamps and lanterns that adjust luminance.
Background
At present, a silicon controlled dimmer has a controllable dimming function, and silicon controlled dimming is a dimming mode which is commonly applied to incandescent lamps and energy-saving lamps at present, and the working principle of the silicon controlled dimmer reduces the effective value of output voltage after the waveform of input voltage passes through silicon controlled chopping, so that the power of a common load (resistance load) is reduced.
However, the existing driving circuits with the leakage protection modules in the market cannot realize full-range dimming with compatible silicon controlled rectifiers.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a silicon controlled rectifier drive circuit, silicon controlled rectifier drive arrangement and lamps and lanterns of adjusting luminance, aim at solving the problem that the drive circuit who takes earth leakage protection module that has now on the market all can't realize compatible silicon controlled rectifier and carry out whole journey and adjust luminance.
The first aspect of the embodiment of this application provides a silicon controlled rectifier drive circuit that adjusts luminance, is connected with the light source module, silicon controlled rectifier drive circuit that adjusts luminance includes:
the silicon controlled rectifier dimmer is used for accessing alternating current and setting a corresponding conduction angle according to a silicon controlled rectifier control signal;
the rectification module is connected with the silicon controlled rectifier dimmer and is used for rectifying the voltage signal output by the silicon controlled rectifier dimmer to generate a direct-current voltage signal;
the driving module is connected with the rectifying module and used for receiving the direct-current voltage signal and generating a current driving signal according to the direct-current voltage signal so as to drive the light source module to work;
the power taking module is connected with the light source module and used for taking power from the output end of the light source module and generating a power supply voltage signal;
and the electric leakage protection module is connected with the rectifying module, the driving module and the electricity taking module, and is used for receiving the power supply voltage signal output by the electricity taking module and carrying out electric leakage detection on the circuit.
Optionally, the thyristor dimming driving circuit further includes:
and the filtering module is connected with the rectifying module and is used for filtering the alternating current.
Optionally, the thyristor dimming driving circuit further includes:
and the overcurrent protection module is connected with the rectification module and used for carrying out overcurrent protection treatment on the alternating current.
Optionally, the driving module includes: the circuit comprises a first diode, a second inductor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a second diode, a third diode, a fourth diode, a first inductor and a driving chip;
the anode of the first diode is connected with the rectifying module, the cathode of the first diode, the first end of the second inductor, the first end of the second resistor and the first end of the first capacitor are connected in common, the second end of the second inductor, the second end of the second resistor, the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth resistor, the first end of the first inductor, the anode of the fourth diode and the first end of the tenth resistor are connected in common with the power taking module, the second end of the fourth resistor, the first end of the fifth resistor, the first end of the fourth capacitor and the cathode of the second diode are connected in common, the anode of the second diode and the first end of the sixth capacitor are connected in common with the compensating pin of the driving chip, the resistor setting pin of the driving chip is connected with the first end of the sixth resistor, a power pin of the driving chip, a first end of the fifth capacitor, and a first end of the eighth resistor are connected in common, a second end of the eighth resistor is connected to a first end of the ninth resistor, a second end of the tenth resistor, and a first end of the fifteenth resistor are connected in common, a second end of the fifteenth resistor is connected to a first end of the fourteenth resistor, a second end of the fourteenth resistor, a first end of the thirteenth resistor, and a feedback pin of the driving chip are connected in common, a chip select signal pin of the driving chip, a first end of the eleventh resistor, and a first end of the twelfth resistor are connected in common, a ground pin of the driving chip, a second end of the thirteenth resistor, a second end of the twelfth resistor, a second end of the eleventh resistor, a second end of the sixth capacitor, a first end of the twelfth resistor, and a ground pin of the driving chip are connected in common, The second end of the sixth resistor, the first end of the fifth capacitor and the first end of the seventh resistor are connected in common, the second end of the seventh resistor, the second end of the fourth capacitor, the second end of the fifth resistor, the second end of the third capacitor, the second end of the third resistor and the second end of the first capacitor are connected in common to the earth leakage protection module, a switch pin of the driving chip, the second end of the first inductor and an anode of the third diode are connected in common, and a cathode of the third diode and a cathode of the fourth diode are connected in common to the light source module.
Optionally, get the electric module and include: a sixteenth resistor, a seventh capacitor, a seventeenth resistor;
the first end of the sixteenth resistor is connected with the light source module, the second end of the sixteenth resistor is connected with the first end of the seventh capacitor, the second end of the seventh capacitor is connected with the first end of the seventeenth resistor, and the second end of the seventeenth resistor is connected with the leakage protection module.
Optionally, the earth leakage protection module includes: the current leakage protection circuit comprises an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, an eighth capacitor, a fifth diode and a leakage protection chip;
the first end of the eighteenth resistor is connected with the power taking module, the second end of the eighteenth resistor is connected with the first end of the nineteenth resistor, the second end of the nineteenth resistor, the first end of the eighth capacitor and the power pin of the leakage protection chip are connected together, the second voltage monitoring pin of the leakage protection chip, the first end of the twentieth resistor, the cathode of the fifth diode, the first end of the twenty-fourth resistor and the grounding pin of the leakage protection chip are connected with the rectifying module, the current monitoring pin of the leakage protection chip, the second end of the twenty-fourth resistor and the anode of the fifth diode are connected together, the first voltage monitoring pin of the leakage protection chip is connected with the second end of the twenty-first resistor, the second end of the twenty-first resistor and the second end of the twenty-second resistor are connected together with the first end of the twenty-second resistor, and the second end of the twenty-second resistor and the first end of the twenty-third resistor are connected in common, and the second end of the twenty-third resistor and the isolation input pin of the leakage protection chip are connected in common to the driving module.
Optionally, the filtering module includes: a ninth capacitance and a tenth capacitance;
the first end of a ninth capacitor is connected with the first input end of the rectifying module, the first end of a tenth capacitor is connected with the second input end of the rectifying module, and the second end of the ninth capacitor and the second end of the tenth capacitor are connected to the ground in common.
Optionally, the overcurrent protection module includes: and the first end of the fuse is connected with the silicon controlled rectifier dimmer, and the second end of the fuse is connected with the rectifying module.
The second aspect of the embodiment of the application provides a silicon controlled rectifier drive arrangement that adjusts luminance, is connected with the light source module, silicon controlled rectifier drive arrangement that adjusts luminance includes as above-mentioned arbitrary silicon controlled rectifier drive circuit that adjusts luminance.
A third aspect of the embodiments of the present application provides a luminaire, including: a light source module; and the silicon controlled rectifier dimming driving circuit is connected with the light source module.
The embodiment of the application provides a silicon controlled rectifier dimming driving circuit, a silicon controlled rectifier dimming driving device and a lamp, alternating current is accessed through a silicon controlled rectifier dimmer, setting a corresponding conduction angle according to the silicon controlled rectifier control signal, rectifying the voltage signal output by the silicon controlled rectifier dimmer by the rectifying module to generate a direct current voltage signal, generating a current driving signal by the driving module according to the direct current voltage signal to drive the light source module to work, then the electricity-taking module takes electricity from the light source module to generate a power supply voltage signal, and receives the power supply voltage signal through the leakage protection module to achieve the purpose of power supply, the leakage protection module carries out leakage protection on the rectifying module and the driving module according to the power supply voltage signal, therefore, the power supply mode of the leakage protection module is changed, the leakage protection module can be compatible with the silicon controlled rectifier dimmer to normally work, and the silicon controlled rectifier dimming is realized.
Drawings
Fig. 1 is a schematic circuit structure diagram of a thyristor dimming driving circuit according to an embodiment of the present application;
fig. 2 is a schematic circuit structure diagram of another thyristor dimming driving circuit according to an embodiment of the present application;
fig. 3 is a schematic circuit structure diagram of another thyristor dimming driving circuit according to an embodiment of the present application;
fig. 4 is a schematic circuit structure diagram of another thyristor dimming driving circuit according to an embodiment of the present application;
fig. 5 is a schematic circuit structure diagram of a leakage protection module according to an embodiment of the present disclosure; .
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in 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 present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiment of the application provides a silicon controlled rectifier drive circuit that adjusts luminance, and the silicon controlled rectifier drive circuit that adjusts luminance in this embodiment is connected with light source module 00, and it is shown in fig. 1 that the silicon controlled rectifier drive circuit that adjusts luminance includes: the power supply device comprises a silicon controlled dimmer 10, a rectifying module 20, a driving module 30, a power taking module 40 and a leakage protection module 50, wherein the silicon controlled dimmer 10 is used for accessing alternating current and setting a corresponding conduction angle according to a silicon controlled control signal; the rectifying module 20 is connected with the thyristor dimmer 10 and is used for rectifying a voltage signal output by the thyristor dimmer 10 to generate a direct-current voltage signal; the driving module 30 is connected to the rectifying module 20, and is configured to receive the dc voltage signal and generate a current driving signal according to the dc voltage signal to drive the light source module 00 to operate; the power taking module 40 is connected with the light source module 00 and is used for taking power from the light source module 00 to generate a power supply voltage signal; the earth leakage protection module 50 is connected to the rectifying module 20, the driving module 30 and the power taking module 40, and is configured to receive a power supply voltage signal output by the power taking module 40 and perform earth leakage detection on the circuit.
In this embodiment, ac power is supplied through the scr dimmer 10, a corresponding conduction angle is set according to the scr control signal, the rectifying module 20 rectifies the voltage signal output by the scr dimmer 10 to generate a dc voltage signal, the driving module 30 generates a current driving signal according to the dc voltage signal to drive the light source module 00 to operate, then, the power-taking module 40 takes power from the light source module 00 to generate a power supply voltage signal, and the power supply voltage signal is received by the leakage protection module 50 to achieve the purpose of power supply, the leakage protection module 50 performs leakage protection on the rectifying module 20 and the driving module 30, thereby, the leakage protection module 50 can be compatible with the silicon controlled dimmer 10 to work normally by changing the power supply mode of the leakage protection module 50, therefore, silicon controlled rectifier dimming is realized, and the problem that the existing driving circuit with the leakage protection module 50 cannot realize the whole-course dimming of compatible silicon controlled rectifiers is solved.
In one embodiment, referring to fig. 2, the scr dimming driving circuit further includes a filtering module 60, and the filtering module 60 is connected to the rectifying module 20 and is configured to filter the dc voltage signal.
In this embodiment, by providing the filtering module 60 at the input end of the rectifying module 20, the input ac power can be filtered to eliminate ripples in the ac power.
In one embodiment, referring to fig. 3, the scr dimming driving circuit further includes an overcurrent protection module 70, and the overcurrent protection module 70 is connected to the rectifier module 20 and is configured to perform an overcurrent protection process on the ac power.
In this embodiment, the overcurrent protection module 70 is disposed at the input end of the rectifier module 20, and is used for performing overcurrent protection on the input ac power to prevent the current of the ac power from being too high to cause damage to the subsequent circuit.
In one embodiment, referring to fig. 4, the driving module 30 includes: a first diode D1, a second inductor L2, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a second diode D2, a third diode D3, a fourth diode D4, a first inductor L1 and a driving chip U1; an anode of the first diode D1 is connected to the rectifying module 20, a cathode of the first diode D1, a first end of the second inductor L2, a first end of the second resistor R2 and a first end of the first capacitor C1 are commonly connected, a second end of the second inductor L2, a second end of the second resistor R2, a first end of the second capacitor C2, a first end of the third capacitor C3, a first end of the fourth resistor R4, a first end of the first inductor L1, an anode of the fourth diode D4, a first end of the tenth resistor R10 are commonly connected to the power-taking module 40, a second end of the fourth resistor R4, a first end of the fifth resistor R5, a first end of the fourth capacitor C4, a cathode of the second diode D2, an anode of the second diode D2, a first end of the sixth capacitor C6 are commonly connected to a compensation Comp of the driving chip U1, a first end of the driving chip U1 is connected to the first terminal Vcc terminal of the driving chip U465, and a first end of the driving chip R6 is commonly connected to the power supply pin U1, A first end of a fifth capacitor C5 and a first end of an eighth resistor R8 are commonly connected, a second end of an eighth resistor R8 is connected to a first end of a ninth resistor R9, a second end of a ninth resistor R9, a second end of a tenth resistor R10 and a first end of a fifteenth resistor R15 are commonly connected, a second end of a fifteenth resistor R15 is connected to a first end of a fourteenth resistor R14, a second end of a fourteenth resistor R14, a first end of a thirteenth resistor R13 and a feedback pin FB of a driving chip U1 are commonly connected, a chip selection signal pin CS of the driving chip U1, a first end of an eleventh resistor R11 and a first end of a twelfth resistor R12 are commonly connected, a ground pin of the driving chip U1, a second end of the thirteenth resistor R13, a second end of the twelfth resistor R12, a second end of the eleventh resistor R11, a second end of a sixth capacitor C6, a second end of a sixth resistor R6, a second end of a fifth resistor R5 and a seventh terminal R7 are commonly connected, the second end of the seventh resistor R7, the second end of the fourth capacitor C4, the second end of the fifth resistor R5, the second end of the third capacitor C3, the second end of the third resistor R3, and the second end of the first capacitor C1 are commonly connected to the earth leakage protection module 50, the switch pin SW of the driver chip U1, the second end of the first inductor L1, and the anode of the third diode D3 are commonly connected, and the cathode of the third diode D3 and the cathode of the fourth diode D4 are commonly connected to the light source module 00.
In this embodiment, the first inductor L1, the second inductor L2, the fourth resistor R4, the fifth resistor R5, the fourth capacitor C4, the second diode D2, and the driving chip U1 may form a Boost driving circuit, and the dc voltage signal rectified by the rectifying module 20 is converted into a constant output current by the switching power supply and is provided to the rear-stage light source module 00, so as to drive the light source module 00 to light up.
In one embodiment, the driver chip may be of the model AL 1692.
In one embodiment, referring to fig. 4, the power-taking module 40 includes: a sixteenth resistor R16, a seventh capacitor C7 and a seventeenth resistor R17; a first end of the sixteenth resistor R16 is connected to the light source module 00, a second end of the sixteenth resistor R16 is connected to a first end of the seventh capacitor C7, a second end of the seventh capacitor C7 is connected to a first end of the seventeenth resistor R17, and a second end of the seventeenth resistor R17 is connected to the earth leakage protection module 50.
In this embodiment, the power-taking module 40 can take power from the output end of the light source module 00, that is, the current output by the light source module 00 is converted into the corresponding power supply voltage signal to the leakage protection module 50 through the sixteenth resistor R16, the seventeenth capacitor and the seventeenth resistor R17, so as to supply power to the leakage protection module 50, wherein the sixteenth resistor R16, the seventeenth capacitor and the seventeenth resistor R17 form an energy storage circuit, sufficient energy can be obtained to keep the leakage protection module 50 working all the time, normal silicon controlled dimming of the driving chip U1 is realized, and meanwhile, the abnormal leakage detection caused by the voltage drop of the power supply end of the leakage protection module 50 to 0V is avoided.
Specifically, in this embodiment, when the alternating current is powered on, the input voltage sequentially passes through the first diode D1, the second inductor L2, the first diode D1, and the third diode D3 after passing through the rectifier module 20, and then enters the input end LED + of the light source module 00, and then the output end LED-output of the light source module 00 enters the leakage protection module 50 through the sixteenth resistor R16, the seventh capacitor C7, and the seventeenth resistor R17 to supply power to the leakage protection module 50.
In one embodiment, referring to fig. 4, the filtering module 60 includes: a ninth capacitance C9 and a tenth capacitance C10; a first terminal of the ninth capacitor C9 is connected to the first input terminal of the rectifier module 20, a first terminal of the tenth capacitor C10 is connected to the second input terminal of the rectifier module 20, and a second terminal of the ninth capacitor C9 and a second terminal of the tenth capacitor C10 are connected to ground.
In this embodiment, the ninth capacitor C9 and the tenth capacitor C10 are connected in parallel to form a filter circuit, so as to filter the input ac power.
In one embodiment, the overcurrent protection module 70 includes: and a first end of the fuse FR is connected with the thyristor dimmer 10, and a second end of the fuse FR is connected with the rectifier module 20.
In the present embodiment, the fuse FR is disposed between the rectifier module 20 and the first input terminal AC 1.
In one embodiment, the first input AC1 is connected to the hot line of the AC power source, the second input AC2 is connected to the neutral line of the AC power source, and the port AC3 may be a common ground.
In one embodiment, referring to fig. 4, the rectifier module 20 includes a rectifier bridge, a sixth diode, and a seventh diode; the first input end of the rectifier bridge is connected with the first input end AC1, the second input end of the rectifier bridge is connected with the second input end AC2, the first output end of the rectifier bridge and the cathode of the sixth diode are connected to the driving module 30 in a shared manner, the second output end of the rectifier bridge and the anode of the seventh diode are connected to the earth leakage protection module 50 in a shared manner, and the anode of the sixth diode and the anode of the seventh diode are connected to the port AC3 in a shared manner.
In this embodiment, the rectifier bridge converts the input sine wave into a dc voltage signal without a negative half cycle, thereby achieving full-wave rectification. Where the frequency of the sine wave may be 50 or 60Hz, converted to a 100 or 120Hz voltage waveform without a negative half cycle.
In one embodiment, two inputs of the rectification module 20 are connected to the first input AC1 and the second input AC2, respectively.
In one embodiment, referring to fig. 5, the earth leakage protection module 50 comprises: an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, an eighth capacitor C8, a fifth diode D5 and a leakage protection chip U2; a first end of an eighteenth resistor R18 is connected to the output end 01 of the power-taking module 40, a second end of the eighteenth resistor R18 is connected to a first end of a nineteenth resistor R19, a second end of the nineteenth resistor R19, a first end of an eighth capacitor C8 and a power supply pin VCC of the leakage protection chip U2 are connected in common, a second voltage monitoring pin TRG of the leakage protection chip U2, a first end of a twentieth resistor R20, a cathode of a fifth diode D5, a first end of a twenty-fourth resistor R24 and a ground pin GND of the leakage protection chip U2 are connected to the second output end 02 of the rectifying module 20, a current monitoring pin CS of the leakage protection chip U2, a second end of the twenty-fourth resistor R24 and an anode of the fifth diode D5 are connected in common, a first voltage monitoring pin VS of the leakage protection chip U2 is connected to a second end of a twenty-first resistor R21, a second end of the twenty-first resistor R21 and a second end of the twenty-resistor R20 are connected to a second end 22, the second terminal of the twenty-second resistor R22 and the first terminal of the twenty-third resistor R23 are connected together, and the second terminal of the twenty-third resistor R23 and the isolated input pin DRN of the leakage protection chip U2 are connected together at the port 03 of the driver module.
In one embodiment, the model number of the leakage protection chip U2 may be LW54133, DM54123, or the like.
In one embodiment, the leakage protection chip U2 may also be an impedance detection chip LT 2600.
If the impedance is determined to be within the normal range, the first voltage monitoring terminal VS outputs a low level, and the isolation input pin DRN is conducted with the current monitoring terminal CS. On the contrary, if the impedance is judged to be in the abnormal range, the isolation input pin DRN is disconnected with the current monitoring end CS, so that electric shock protection is realized and personal safety is guaranteed.
In a specific application embodiment, the power supply pin VCC normally receives the operating voltage, when the light source module 00 normally operates, the current monitoring pin CS of the leakage protection chip U2 continuously collects the current between the port 02 and the ground, and the first voltage monitoring pin VS and the second voltage monitoring pin TRG continuously collect the voltage between the port 03 and the ground, so as to calculate the grid impedance between the port 02 and the ground. If the impedance is determined to be within the normal range, the isolation input pin DRN is conducted with the current monitoring pin CS, and the current flows through the sampling resistor of the current monitoring pin CS to form a path with the ground line. On the contrary, if the impedance is judged to be in the abnormal range, the isolation input pin DRN is disconnected with the current monitoring pin CS, and the port 02 is disconnected with the second ground wire, so that electric shock protection is realized, and personal safety is guaranteed.
In a specific application embodiment, because the silicon controlled rectifier dimmer 10 is connected, the voltage waveform of the first output end of the rectifier bridge has a periodic state of being at about 0V, if the module is supplied with power from this place according to the connection method of the conventional earth leakage protection module 50, the earth leakage protection module 50 can appear because the power supply is abnormal, and the condition that the module cannot work normally is caused, in this embodiment, the output end of the light source module 00 is connected through the power taking module 40, the driving mode of the earth leakage protection module 50 is changed, so that the lamp tube can be compatible with the silicon controlled rectifier dimmer 10, and the silicon controlled rectifier dimming can be performed on the lamp tube.
Further, in the boost and buck-boost driving circuits, the output end of the light source module 00 can be connected to the power taking module 40 to take power to the electric leakage protection module 50, that is, the power supply pin of the electric leakage protection module 50 is led to the position of output electrolysis, so that when the angle of the thyristor is changed, the electric leakage protection module 50 can still work normally.
The embodiment of the application further provides a silicon controlled rectifier dimming driving device, which is connected with the light source module 00, and the silicon controlled rectifier dimming driving device comprises the silicon controlled rectifier dimming driving circuit according to any one of the above.
The embodiment of the application further provides a lamp, which comprises a light source module 00 and the silicon controlled rectifier dimming driving circuit according to any one of the above items, wherein the silicon controlled rectifier dimming driving circuit is connected with the light source module 00.
The embodiment of the application provides a silicon controlled rectifier dimming driving circuit, a silicon controlled rectifier dimming driving device and a lamp, alternating current is accessed through a silicon controlled rectifier dimmer, setting a corresponding conduction angle according to the silicon controlled rectifier control signal, rectifying the voltage signal output by the silicon controlled rectifier dimmer by the rectifying module to generate a direct current voltage signal, generating a current driving signal by the driving module according to the direct current voltage signal to drive the light source module to work, then the electricity-taking module takes electricity from the light source module to generate a power supply voltage signal, and receives the power supply voltage signal through the leakage protection module to achieve the purpose of power supply, the leakage protection module carries out leakage protection on the rectifying module and the driving module according to the power supply voltage signal, therefore, the power supply mode of the leakage protection module is changed, the leakage protection module can be compatible with the silicon controlled rectifier dimmer to normally work, and the silicon controlled rectifier dimming is realized.
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. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
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 units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides a silicon controlled rectifier drive circuit that adjusts luminance, is connected with the light source module, its characterized in that, silicon controlled rectifier drive circuit that adjusts luminance includes:
the silicon controlled rectifier dimmer is used for accessing alternating current and setting a corresponding conduction angle according to a silicon controlled rectifier control signal;
the rectification module is connected with the silicon controlled rectifier dimmer and is used for rectifying the voltage signal output by the silicon controlled rectifier dimmer to generate a direct-current voltage signal;
the driving module is connected with the rectifying module and used for receiving the direct-current voltage signal and generating a current driving signal according to the direct-current voltage signal so as to drive the light source module to work;
the power taking module is connected with the light source module and used for taking power from the output end of the light source module and generating a power supply voltage signal;
and the electric leakage protection module is connected with the rectifying module, the driving module and the electricity taking module, and is used for receiving the power supply voltage signal output by the electricity taking module and carrying out electric leakage detection on the circuit.
2. The triac dimming drive circuit of claim 1, further comprising:
and the filtering module is connected with the rectifying module and is used for filtering the alternating current.
3. The triac dimming drive circuit of claim 1, further comprising:
and the overcurrent protection module is connected with the rectification module and used for carrying out overcurrent protection treatment on the alternating current.
4. The triac dimming drive circuit of claim 1, wherein said drive module comprises: the circuit comprises a first diode, a first inductor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a second diode, a third diode, a fourth diode and a driving chip;
the anode of the first diode is connected with the rectifying module, the cathode of the first diode, the first end of the second inductor, the first end of the second resistor and the first end of the first capacitor are connected in common, the second end of the second inductor, the second end of the second resistor, the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth resistor, the first end of the first inductor, the anode of the fourth diode and the first end of the tenth resistor are connected in common with the power taking module, the second end of the fourth resistor, the first end of the fifth resistor, the first end of the fourth capacitor and the cathode of the second diode are connected in common, the anode of the second diode and the first end of the sixth capacitor are connected in common with the compensating pin of the driving chip, the resistor setting pin of the driving chip is connected with the first end of the sixth resistor, a power pin of the driving chip, a first end of the fifth capacitor, and a first end of the eighth resistor are connected in common, a second end of the eighth resistor is connected to a first end of the ninth resistor, a second end of the tenth resistor, and a first end of the fifteenth resistor are connected in common, a second end of the fifteenth resistor is connected to a first end of the fourteenth resistor, a second end of the fourteenth resistor, a first end of the thirteenth resistor, and a feedback pin of the driving chip are connected in common, a chip select signal pin of the driving chip, a first end of the eleventh resistor, and a first end of the twelfth resistor are connected in common, a ground pin of the driving chip, a second end of the thirteenth resistor, a second end of the twelfth resistor, a second end of the eleventh resistor, a second end of the sixth capacitor, a first end of the twelfth resistor, and a ground pin of the driving chip are connected in common, The second end of the sixth resistor, the first end of the fifth capacitor and the first end of the seventh resistor are connected in common, the second end of the seventh resistor, the second end of the fourth capacitor, the second end of the fifth resistor, the second end of the third capacitor, the second end of the third resistor and the second end of the first capacitor are connected in common to the earth leakage protection module, a switch pin of the driving chip, the second end of the first inductor and an anode of the third diode are connected in common, and a cathode of the third diode and a cathode of the fourth diode are connected in common to the light source module.
5. The silicon controlled rectifier dimming driving circuit of claim 1, wherein the power taking module comprises: a sixteenth resistor, a seventh capacitor, a seventeenth resistor;
the first end of the sixteenth resistor is connected with the light source module, the second end of the sixteenth resistor is connected with the first end of the seventh capacitor, the second end of the seventh capacitor is connected with the first end of the seventeenth resistor, and the second end of the seventeenth resistor is connected with the leakage protection module.
6. The triac dimming drive circuit of claim 1, wherein said leakage protection module comprises: the current leakage protection circuit comprises an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, an eighth capacitor, a fifth diode and a leakage protection chip;
the first end of the eighteenth resistor is connected with the power taking module, the second end of the eighteenth resistor is connected with the first end of the nineteenth resistor, the second end of the nineteenth resistor, the first end of the eighth capacitor and the power pin of the leakage protection chip are connected together, the second voltage monitoring pin of the leakage protection chip, the first end of the twentieth resistor, the cathode of the fifth diode, the first end of the twenty-fourth resistor and the grounding pin of the leakage protection chip are connected with the rectifying module, the current monitoring pin of the leakage protection chip, the second end of the twenty-fourth resistor and the anode of the fifth diode are connected together, the first voltage monitoring pin of the leakage protection chip is connected with the second end of the twenty-first resistor, the second end of the twenty-first resistor and the second end of the twenty-second resistor are connected together with the first end of the twenty-second resistor, and the second end of the twenty-second resistor and the first end of the twenty-third resistor are connected in common, and the second end of the twenty-third resistor and the isolation input pin of the leakage protection chip are connected in common to the driving module.
7. The triac dimming drive circuit of claim 2, wherein said filtering module comprises: a ninth capacitance and a tenth capacitance;
the first end of a ninth capacitor is connected with the first input end of the rectifying module, the first end of a tenth capacitor is connected with the second input end of the rectifying module, and the second end of the ninth capacitor and the second end of the tenth capacitor are connected to the ground in common.
8. The triac dimming drive circuit of claim 3, wherein said overcurrent protection module comprises: and the first end of the fuse is connected with the silicon controlled rectifier dimmer, and the second end of the fuse is connected with the rectifying module.
9. A silicon controlled rectifier dimming driving device, connected with a light source module, wherein the silicon controlled rectifier dimming driving device comprises the silicon controlled rectifier dimming driving circuit according to any one of claims 1 to 8.
10. A light fixture, comprising: a light source module; and the silicon controlled rectifier dimming driving circuit according to any one of claims 1 to 8, wherein the silicon controlled rectifier dimming driving circuit is connected with the light source module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120454210.3U CN214799957U (en) | 2021-03-02 | 2021-03-02 | Silicon controlled rectifier dimming drive circuit, silicon controlled rectifier dimming drive device and lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120454210.3U CN214799957U (en) | 2021-03-02 | 2021-03-02 | Silicon controlled rectifier dimming drive circuit, silicon controlled rectifier dimming drive device and lamp |
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| CN214799957U true CN214799957U (en) | 2021-11-19 |
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| CN202120454210.3U Active CN214799957U (en) | 2021-03-02 | 2021-03-02 | Silicon controlled rectifier dimming drive circuit, silicon controlled rectifier dimming drive device and lamp |
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- 2021-03-02 CN CN202120454210.3U patent/CN214799957U/en active Active
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