CN212752671U - Wall accuse dimming circuit and illumination lamps and lanterns - Google Patents
Wall accuse dimming circuit and illumination lamps and lanterns Download PDFInfo
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- CN212752671U CN212752671U CN202021013665.3U CN202021013665U CN212752671U CN 212752671 U CN212752671 U CN 212752671U CN 202021013665 U CN202021013665 U CN 202021013665U CN 212752671 U CN212752671 U CN 212752671U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model belongs to the technical field of electronic circuit, a wall accuse dimming circuit and illumination lamps and lanterns is provided, including main control module and detection module, detect the wall accuse switch through detecting the module at every turn and move to when the action is long when presetting the time, corresponding output control signal to main control module, this regulating signal is used for instructing the linear regulation output current's of main control module size, and constant current drive LED lamp cluster is luminous. Therefore, the dimming signal is controlled by detecting the transient closing signal of the wall control switch, so that the brightness of the LED lamp string can be continuously changed, and the problems that the wall control switch is opened or closed, the light source is controlled to be turned on or off, and the light source can only be controlled to be turned on or off in the mode, and the dimming cannot be performed in the existing lamp illumination technology are solved.
Description
Technical Field
The utility model belongs to the technical field of electronic circuit, especially, relate to a wall accuse dimming circuit and illumination lamps and lanterns.
Background
The existing lighting lamp usually adopts to open or close a wall control switch so as to control the on and off of a light source, and the mode only can control the on and off of the light source, so that the dimming cannot be carried out, and the intelligence degree is lower.
Therefore, the existing lamp lighting technology has the problems that the turning on or off of the wall control switch is adopted to control the on and off of the light source, and the mode only can control the on and off of the light source, so that the dimming cannot be carried out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wall accuse dimming circuit and illumination lamps and lanterns aims at solving current lamps and lanterns lighting technology and has the adoption and open or close wall accuse switch to the light-on and the extinguishment of control light source, the bright of this mode only can control the light source goes out, the unable problem of adjusting luminance.
The utility model provides a first aspect provides a wall accuse dimming circuit, including the wall accuse switch, the wall accuse switch is used for inserting the commercial power, the wall accuse dimming circuit still includes:
the main control module is connected with the LED lamp string and used for linearly adjusting the magnitude of output current according to the received adjusting signal and driving the LED lamp string to emit light in a constant current manner; and
and the detection module is connected with the wall control switch and the master control module and is used for detecting that the wall control switch acts at each time, and correspondingly outputting the adjusting signal to the master control module when the action duration is within the preset time.
Therefore, the dimming signal is controlled by detecting the short-time closing signal of the wall control switch, so that the brightness of the LED lamp string can be continuously changed.
In one embodiment, the method further comprises:
the rectification module is connected with the wall control switch and the main control module and is used for rectifying the alternating current signal output by the mains supply; and
and the power supply module is connected with the rectification module, the main control module and the detection module and used for converting the alternating current signal after rectification into constant voltage by adopting a switching power supply so as to supply power to the detection module and the main control module. Therefore, only the alternating current signal output by the mains supply is subjected to signal processing, the detection module and the main control module can be powered, an external power supply is not needed, and energy is saved.
In one embodiment, the main control module includes any one of a buck circuit, a boost circuit, a buck-boost circuit, and a flyback circuit. This embodiment defines the linearity of the master module.
In one embodiment, the main control module includes:
the circuit comprises a main control chip, a second resistor, a third resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first capacitor, a fourth capacitor, a first voltage stabilizing capacitor, a first diode and a second inductor;
the first end of the second resistor, the cathode of the first diode, the first end of the third resistor and the first end of the first voltage-stabilizing capacitor are connected in common, the second end of the second resistor is connected with the first end of the first capacitor, the second end of the first capacitor, the anode of the first diode and the first end of the second inductor are connected in common and connected with the enable end of the main control chip, the second end of the second inductor is connected with the second end of the third resistor, the first end of the fifth resistor is connected with the overvoltage protection end of the main control chip, the first end of the fourth capacitor, the first end of the sixth resistor and the pulse end of the main control chip are connected in common and connected with the adjusting signal, the first end of the seventh resistor and the first end of the eighth resistor are connected with the chip selection end of the main control chip, and the second end of the fifth resistor, the second end of the sixth resistor and the first end of the fifth resistor are connected with the enable end of the main control chip in common and connected with the enable end of, A second terminal of the seventh resistor, a second terminal of the eighth resistor, and a second terminal of the fourth capacitor are grounded. This embodiment defines a specific circuit structure of the master control module.
In one embodiment, the main control module includes:
the circuit comprises a main control chip, a second resistor, a third resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a fourth capacitor, a first voltage stabilizing capacitor, a first diode and a second inductor;
the first end of the second resistor, the first end of the second inductor, the first end of the third resistor and the first end of the first voltage-stabilizing capacitor are connected in common, the second end of the second resistor is connected with the high-voltage end of the main control chip, the anode of the first diode is connected with the first end of the second inductor and the enabling end of the main control chip in common, the second end of the third resistor is connected with the cathode of the first diode and the second end of the first voltage-stabilizing capacitor in common, the first end of the fifth resistor is connected with the overvoltage protection end of the main control chip, the first end of the fourth capacitor is connected with the first end of the sixth resistor and the pulse end of the main control chip in common and connected with the adjusting signal, the first end of the seventh resistor and the first end of the eighth resistor are connected with the chip selection end of the main control chip, and the second end of the fifth resistor is connected with the pulse end of the pulse selection end of the main control chip in common, A second end of the sixth resistor, a second end of the seventh resistor, a second end of the eighth resistor, and a second end of the fourth capacitor are grounded. This embodiment defines another specific circuit structure of the master control module.
In one embodiment, the main control module includes:
the circuit comprises a main control chip, a second resistor, a third resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a fourth capacitor, a first voltage stabilizing capacitor, a first diode and a second inductor;
the first end of the second resistor is connected with the first end of the second inductor, the second end of the second inductor is connected with the anode of the first diode and the enable end of the main control chip in a sharing mode, the cathode of the first diode is connected with the first end of the third resistor and the first end of the first voltage-stabilizing capacitor in a sharing mode, the second end of the second resistor is connected with the high-voltage end of the main control chip, the second end of the third resistor is connected with the second end of the first voltage-stabilizing capacitor in a grounding mode, the first end of the fifth resistor is connected with the overvoltage protection end of the main control chip, the first end of the fourth capacitor is connected with the first end of the sixth resistor and the pulse end of the main control chip in a sharing mode and is connected with the adjusting signal, the first end of the seventh resistor and the first end of the eighth resistor are connected with the chip selection end of the main control chip, and the second end of the fifth resistor, A second end of the sixth resistor, a second end of the seventh resistor, a second end of the eighth resistor, and a second end of the fourth capacitor are grounded. This embodiment defines another specific circuit structure of the master control module.
In one embodiment, the detection module includes:
the second diode, the fifth capacitor, the tenth resistor, the eleventh resistor and the dimming chip;
the cathode of the second diode is connected to the reference voltage, the anode of the second diode is connected to the first end of the tenth resistor and the first end of the eleventh resistor in common, the second end of the tenth resistor is connected to the first end of the fifth capacitor and the serial port of the dimming chip, and the second end of the eleventh resistor and the second end of the fifth capacitor are grounded. The embodiment defines the specific circuit structure of the detection module.
In one embodiment, the rectifier module comprises a rectifier bridge. This embodiment defines the model selection characteristic of the rectifier module.
In one embodiment, the power supply module includes:
the power supply comprises a third diode, a fourth diode, a fifth diode, a second voltage-stabilizing capacitor, a third inductor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a sixth capacitor and a switching power supply chip;
the anode of the third diode is connected with the master control module, the cathode of the third diode and the first end of the second voltage-stabilizing capacitor are connected with the enable end of the switching power supply chip, the first end of the twelfth resistor and the first end of the thirteenth resistor are connected with the chip selection end of the switching power supply chip, the cathode of the fourth diode and the first end of the sixth capacitor are connected with the voltage end of the switching power supply chip, the second end of the sixth capacitor, the second end of the twelfth resistor, the second end of the thirteenth resistor, the cathode of the fifth diode and the first end of the third inductor are connected in common, the anode of the fourth diode, the second end of the third inductor, the first end of the third voltage-stabilizing capacitor and the first end of the fourteenth resistor are connected in common and connected with the detection module, the second end of the second voltage-stabilizing capacitor, the enable end of the switching power supply chip, the first end of the twelfth resistor and the first end of the thirteenth resistor are connected with the chip, An anode of the fifth diode, the third voltage-stabilizing capacitor and a second end of the fourteenth resistor are grounded. The embodiment defines the specific circuit structure of the power supply module.
The utility model discloses the second aspect provides an illumination lamps and lanterns, including LED lamp cluster, still include as above-mentioned wall accuse dimming circuit.
The lighting lamp controls the dimming signal by detecting the transient closing signal of the wall control switch, so that the brightness of the LED lamp string can be continuously changed.
The utility model provides a pair of wall accuse dimming circuit and illumination lamps and lanterns, including main control module and detection module, detect wall accuse switch through detecting the module at every turn and move to when the time is predetermineeing to the action time length, corresponding output control signal to main control module, this regulating signal is used for instructing the linear size of adjusting output current of main control module, and constant current drive LED lamp cluster is luminous. Therefore, the dimming signal is controlled by detecting the transient closing signal of the wall control switch, so that the brightness of the LED lamp string can be continuously changed, and the problems that the wall control switch is opened or closed, the light source is controlled to be turned on or off, and the light source can only be controlled to be turned on or off in the mode, and the dimming cannot be performed in the existing lamp illumination technology are solved.
Drawings
Fig. 1 is a schematic diagram of a modular structure of a wall-control light modulation circuit provided by the present invention.
Fig. 2 is another schematic block diagram of the wall-control light modulation circuit according to the present invention.
Fig. 3 is a circuit diagram illustrating an example of a power supply module in the wall-control dimming circuit provided in correspondence with fig. 2.
Fig. 4 is a circuit diagram illustrating an example of a wall-control dimming circuit according to an embodiment of fig. 2.
Fig. 5 is a circuit diagram illustrating an example of a wall-control dimming circuit according to another embodiment of fig. 2.
Fig. 6 is a circuit diagram illustrating an example of a wall-control dimming circuit according to another embodiment of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 invention and are not intended to limit the invention.
Fig. 1 shows a modular structure of a wall-control light modulation circuit provided by the present invention, and for convenience of description, only the parts related to the present embodiment are shown, and detailed descriptions are as follows:
a wall control dimming circuit comprises a wall control switch 102, wherein the wall control switch 102 is used for being connected with a mains supply 101, and the wall control dimming circuit further comprises a main control module 103 and a detection module 105.
The detection module 105 is connected to the wall control switch 102 and the main control module 103, and is configured to detect that the wall control switch 102 performs an action each time, and correspondingly output an adjustment signal to the main control module 103 when the action duration is within a preset time. And the main control module 103 is connected with the LED lamp string 104 and is used for linearly adjusting the output current according to the received adjusting signal and driving the LED lamp string 104 to emit light in a constant current mode.
Therefore, the dimming signal is controlled by detecting the short-time closing signal of the wall control switch 102, so that the brightness of the LED lamp string can be continuously changed. The method is simple and easy to implement, and the brightness of the LED lamp string can be adjusted only by pressing the wall control switch 102; and the detection module 105 and the main control module 103 are added, so that a remote controller or other control equipment is not needed, and the dimming requirement of a customer on the LED lamp string 104 is realized at the minimum cost.
For example, when detecting that the wall control switch 102 is powered off for the first time (within 2S), the main control module 103 slowly changes the output current from low to high and then to low, automatically cycles for 3 periods, and locks the output when detecting that the wall control switch 102 is powered off for the first time (within 2S) again in the output change period. If the wall control switch 102 is not detected to be powered down for a short time (within 2S) again in the output gradual change period, the brightness stored in the previous time is restored. Therefore, the effect of adjusting the brightness of the LED lamp string through the short-term power failure of the wall control switch 102 is achieved.
Specifically, the main control module 103 includes any one of a buck circuit, a boost circuit, a buck-boost circuit, and a flyback circuit. It should be understood that, since the main control module 103 adjusts the output current to directly control the brightness of the LED string, any one of the buck circuit, the boost circuit, the buck-boost circuit and the flyback circuit may be used to adjust the output current.
Fig. 2 shows another modular structure of the wall-control light modulation circuit provided by the present invention, and for convenience of description, only the parts related to the present embodiment are shown, which are detailed as follows:
on the basis of the embodiment shown in fig. 1, the wall control dimming circuit further includes a rectification module 106 and a power supply module 107.
The rectification module 106 is connected to the wall control switch 102 and the main control module 103, and is configured to rectify an ac signal output by the utility power 101. The power supply module 107 is connected to the rectification module 106, the main control module 103 and the detection module 105, and is configured to convert the rectified ac signal into a constant voltage by using a switching power supply, so as to supply power to the detection module 105 and the main control module 103.
Specifically, only the alternating current signal output by the commercial power 101 is subjected to signal processing, so that the detection module 105 and the main control module 103 can be powered without an external power supply, and energy is saved.
Fig. 3 shows an example circuit of a power supply module in the wall-control dimming circuit provided corresponding to fig. 2, and for convenience of description, only the parts related to the present embodiment are shown, and the details are as follows:
as an embodiment of the present invention, the power supply module 107 includes a third diode D3, a fourth diode D4, a fifth diode D5, a second voltage-stabilizing capacitor CD2, a third voltage-stabilizing capacitor CD3, a third inductor L3, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a sixth capacitor C6, and a switching power supply chip U2.
The anode of the third diode D3 is connected to the main control module 103, the cathode of the third diode D3 and the first end of the second voltage-stabilizing capacitor CD2 are connected to the enable terminal drap of the switch power chip U2, the first ends of the twelfth resistor R12 and the thirteenth resistor R13 are connected to the chip select terminal CS of the switch power chip U2, the cathode of the fourth diode D4 and the first end of the sixth capacitor C6 are connected to the voltage terminal VCC of the switch power chip U2, the second end of the sixth capacitor C6, the second end of the twelfth resistor R12, the second end of the thirteenth resistor R13, the cathode of the fifth diode D5 and the first end of the third inductor L3 are connected in common, the anode of the fourth diode D4, the second terminal of the third inductor L3, the first terminal of the third voltage-stabilizing capacitor CD3, and the first terminal of the fourteenth resistor R14 are commonly connected to the detection module 105, and the second terminal of the second voltage-stabilizing capacitor CD2, the anode of the fifth diode D5, the second terminal of the third voltage-stabilizing capacitor CD3, and the second terminal of the fourteenth resistor R14 are grounded.
Fig. 4 shows an example circuit of a wall-control dimming circuit provided corresponding to an embodiment of fig. 2, and for convenience of description, only the parts related to the embodiment are shown, and the details are as follows:
as an embodiment of the present invention, the above-mentioned main control module includes a main control chip U1, a second resistor R2, a third resistor R3, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first capacitor C1, a fourth capacitor C4, a first voltage-stabilizing capacitor CD1, a first diode D1 and a second inductor L2.
A first end of a second resistor R2, a cathode of a first diode D1, a first end of a third resistor R3 and a first end of a first voltage-stabilizing capacitor CD1 are connected in common, a second end of a second resistor R2 is connected with a first end of a first capacitor C1, a second end of the first capacitor C1 is connected with an anode of a first diode D1 and a first end of a second inductor L2 in common and connected with an enable end DRAN of a main control chip U1, a second end of the second inductor L2 is connected with a second end of a third resistor R3, a first end of a fifth resistor R5 is connected with an overvoltage protection end OVP of the main control chip U1, a first end of a fourth capacitor C4 is connected with a first end of a sixth resistor R6 and a pulse end PWM of the main control chip U1 in common and connected with a regulation signal, a first end of a seventh resistor R7 and a first end of an eighth resistor R8 are connected with a main control chip CS 1, a second end of the second resistor R5 and a second end of the sixth resistor R5 and a second end of the resistor R599, The second terminal of the eighth resistor R8 and the second terminal of the fourth capacitor C4 are grounded.
As an embodiment of the present invention, the detection module 105 includes a second diode D2, a fifth capacitor C5, a tenth resistor R10, an eleventh resistor R11, and a dimming chip U3.
The cathode of the second diode D2 is connected to the reference voltage VDD, the anode of the second diode D2 is connected to the first end of the tenth resistor R10 and the first end of the eleventh resistor R11 in common, the second end of the tenth resistor R10 is connected to the first end of the fifth capacitor C5 and the serial port IO of the dimming chip U3, and the second end of the eleventh resistor R11 is connected to the second end of the fifth capacitor C5 in ground.
As an embodiment of the present invention, the rectifier module 106 includes a rectifier bridge DB 1.
Fig. 5 shows an example circuit of a wall-control dimming circuit provided in correspondence with another embodiment of fig. 2, and for convenience of description, only the parts related to the present embodiment are shown, and detailed descriptions are as follows:
as an embodiment of the present invention, the difference from the embodiment shown in fig. 4 lies in that the above-mentioned main control module 103 has reduced the first capacitor C1, and the connection structure of the second resistor R2, the third resistor R3, the second inductor L2, the first voltage-stabilizing capacitor CD1 and the first diode D1 is different, specifically:
the first end of the second resistor R2, the first end of the second inductor L2, the first end of the third resistor R3 and the first end of the first voltage-stabilizing capacitor CD1 are connected in common, the second end of the second resistor R2 is connected to the high-voltage end HV of the main control chip U1, the anode of the first diode D1 is connected in common with the first end of the second inductor L2 and the enable end DRAN of the main control chip U1, and the second end of the third resistor R3 is connected in common with the cathode of the first diode D1 and the second end of the first voltage-stabilizing capacitor CD 1.
Fig. 6 shows an example circuit of a wall-control dimming circuit provided in correspondence with another embodiment of fig. 2, and for convenience of description, only the parts related to the present embodiment are shown, and detailed descriptions are as follows:
as an embodiment of the present invention, the difference from the embodiment shown in fig. 4 lies in that the above-mentioned main control module 103 has reduced the first capacitor C1, and the connection structure of the second resistor R2, the third resistor R3, the second inductor L2, the first voltage-stabilizing capacitor CD1 and the first diode D1 is different, specifically:
the first end of the second resistor R2 is connected with the first end of the second inductor L2, the second end of the second inductor L2 is connected with the anode of the first diode D1 and the enable terminal DRAN of the main control chip U1 in a common mode, the cathode of the first diode D1 is connected with the first end of the third resistor R3 and the first end of the first voltage-stabilizing capacitor CD1 in a common mode, the second end of the second resistor R2 is connected with the high-voltage end HV of the main control chip U1, and the second end of the third resistor R3 is connected with the second end of the first voltage-stabilizing capacitor CD1 in a ground mode.
The utility model also provides an illumination lamps and lanterns, including LED lamp cluster 104, still include as above-mentioned wall accuse dimming circuit.
It should be noted that the lighting fixture is added with the LED string 104 on the basis of the wall-control dimming circuit, so that the functional description and the principle description of the wall-control switch 102, the main control module 103, the detection module 105, the rectification module 106 and the power supply module 107 in the wall-control dimming circuit can refer to the embodiments of fig. 1 to 6, and details are not repeated herein.
The working principle of the wall control dimming circuit and the lighting fixture is described below with reference to fig. 1 to 6 as follows:
firstly, the wall-control switch 102 is used to access the commercial power, and the rectifier bridge DB1 converts the input 50/60HZ voltage of the sine wave into a voltage waveform of 100/120HZ with no negative half cycle, then the power supply module 107 converts the rectified voltage into a constant output voltage through the switching power supply and provides the constant output voltage to the detection module 105 and the main control module 103, and when the detection module 105 detects the transient OFF signal of the wall-control switch 102, a Pulse Width Modulation (PWM) signal is output, so that the main control module 103 controls the magnitude of the output current according to the received PWM signal to adjust the brightness of the LED light string 104.
To sum up, the embodiment of the utility model provides a pair of wall accuse dimming circuit and illumination lamps and lanterns, including main control module and detection module, detect the wall accuse switch through detecting the module at every turn and move to when the time of action is long when predetermineeing the time, corresponding output control signal to main control module, this regulating signal is used for instructing the linear regulation output current's of main control module size, and constant current drive LED lamp cluster is luminous. Therefore, the dimming signal is controlled by detecting the transient closing signal of the wall control switch, so that the brightness of the LED lamp string can be continuously changed, and the problems that the wall control switch is opened or closed, the light source is controlled to be turned on or off, and the light source can only be controlled to be turned on or off in the mode, and the dimming cannot be performed in the existing lamp illumination technology are solved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a wall accuse dimming circuit, includes wall accuse switch, wall accuse switch is used for inserting the commercial power, its characterized in that, wall accuse dimming circuit still includes:
the main control module is connected with the LED lamp string and used for linearly adjusting the magnitude of output current according to the received adjusting signal and driving the LED lamp string to emit light in a constant current manner; and
and the detection module is connected with the wall control switch and the main control module and used for outputting the adjusting signal to the main control module.
2. The wall-controlled dimming circuit of claim 1, further comprising:
the rectification module is connected with the wall control switch and the main control module and is used for rectifying the alternating current signal output by the mains supply; and
and the power supply module is connected with the rectification module, the main control module and the detection module and used for converting the alternating current signal after rectification into constant voltage by adopting a switching power supply so as to supply power to the detection module and the main control module.
3. The wall control dimming circuit of claim 1, wherein the main control module comprises any one of a buck circuit, a boost circuit, a buck-boost circuit, and a flyback circuit.
4. The wall-control dimming circuit of claim 1, wherein the master control module comprises:
the circuit comprises a main control chip, a second resistor, a third resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first capacitor, a fourth capacitor, a first voltage stabilizing capacitor, a first diode and a second inductor;
the first end of the second resistor, the cathode of the first diode, the first end of the third resistor and the first end of the first voltage-stabilizing capacitor are connected in common, the second end of the second resistor is connected with the first end of the first capacitor, the second end of the first capacitor, the anode of the first diode and the first end of the second inductor are connected in common and connected with the enable end of the main control chip, the second end of the second inductor is connected with the second end of the third resistor, the first end of the fifth resistor is connected with the overvoltage protection end of the main control chip, the first end of the fourth capacitor, the first end of the sixth resistor and the pulse end of the main control chip are connected in common and connected with the adjusting signal, the first end of the seventh resistor and the first end of the eighth resistor are connected with the chip selection end of the main control chip, and the second end of the fifth resistor, the second end of the sixth resistor and the first end of the fifth resistor are connected with the enable end of the main control chip in common and connected with the enable end of, A second terminal of the seventh resistor, a second terminal of the eighth resistor, and a second terminal of the fourth capacitor are grounded.
5. The wall-control dimming circuit of claim 1, wherein the master control module comprises:
the circuit comprises a main control chip, a second resistor, a third resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a fourth capacitor, a first voltage stabilizing capacitor, a first diode and a second inductor;
the first end of the second resistor, the first end of the second inductor, the first end of the third resistor and the first end of the first voltage-stabilizing capacitor are connected in common, the second end of the second resistor is connected with the high-voltage end of the main control chip, the anode of the first diode is connected with the first end of the second inductor and the enabling end of the main control chip in common, the second end of the third resistor is connected with the cathode of the first diode and the second end of the first voltage-stabilizing capacitor in common, the first end of the fifth resistor is connected with the overvoltage protection end of the main control chip, the first end of the fourth capacitor is connected with the first end of the sixth resistor and the pulse end of the main control chip in common and connected with the adjusting signal, the first end of the seventh resistor and the first end of the eighth resistor are connected with the chip selection end of the main control chip, and the second end of the fifth resistor is connected with the pulse end of the pulse selection end of the main control chip in common, A second end of the sixth resistor, a second end of the seventh resistor, a second end of the eighth resistor, and a second end of the fourth capacitor are grounded.
6. The wall-control dimming circuit of claim 1, wherein the master control module comprises:
the circuit comprises a main control chip, a second resistor, a third resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a fourth capacitor, a first voltage stabilizing capacitor, a first diode and a second inductor;
the first end of the second resistor is connected with the first end of the second inductor, the second end of the second inductor is connected with the anode of the first diode and the enable end of the main control chip in a sharing mode, the cathode of the first diode is connected with the first end of the third resistor and the first end of the first voltage-stabilizing capacitor in a sharing mode, the second end of the second resistor is connected with the high-voltage end of the main control chip, the second end of the third resistor is connected with the second end of the first voltage-stabilizing capacitor in a grounding mode, the first end of the fifth resistor is connected with the overvoltage protection end of the main control chip, the first end of the fourth capacitor is connected with the first end of the sixth resistor and the pulse end of the main control chip in a sharing mode and is connected with the adjusting signal, the first end of the seventh resistor and the first end of the eighth resistor are connected with the chip selection end of the main control chip, and the second end of the fifth resistor, A second end of the sixth resistor, a second end of the seventh resistor, a second end of the eighth resistor, and a second end of the fourth capacitor are grounded.
7. The wall-control dimming circuit of claim 1, wherein the detection module comprises:
the second diode, the fifth capacitor, the tenth resistor, the eleventh resistor and the dimming chip;
the cathode of the second diode is connected to the reference voltage, the anode of the second diode is connected to the first end of the tenth resistor and the first end of the eleventh resistor in common, the second end of the tenth resistor is connected to the first end of the fifth capacitor and the serial port of the dimming chip, and the second end of the eleventh resistor and the second end of the fifth capacitor are grounded.
8. The wall control dimming circuit of claim 2, wherein the rectification module comprises a rectifier bridge.
9. The wall-control dimming circuit of claim 2, wherein the power supply module comprises:
the power supply comprises a third diode, a fourth diode, a fifth diode, a second voltage-stabilizing capacitor, a third inductor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a sixth capacitor and a switching power supply chip;
the anode of the third diode is connected with the master control module, the cathode of the third diode and the first end of the second voltage-stabilizing capacitor are connected with the enable end of the switching power supply chip, the first end of the twelfth resistor and the first end of the thirteenth resistor are connected with the chip selection end of the switching power supply chip, the cathode of the fourth diode and the first end of the sixth capacitor are connected with the voltage end of the switching power supply chip, the second end of the sixth capacitor, the second end of the twelfth resistor, the second end of the thirteenth resistor, the cathode of the fifth diode and the first end of the third inductor are connected in common, the anode of the fourth diode, the second end of the third inductor, the first end of the third voltage-stabilizing capacitor and the first end of the fourteenth resistor are connected in common and connected with the detection module, the second end of the second voltage-stabilizing capacitor, the enable end of the switching power supply chip, the first end of the twelfth resistor and the first end of the thirteenth resistor are connected with the chip, An anode of the fifth diode, the third voltage-stabilizing capacitor and a second end of the fourteenth resistor are grounded.
10. A lighting fixture comprising a string of LED lights and further comprising a wall-control dimming circuit as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021013665.3U CN212752671U (en) | 2020-06-05 | 2020-06-05 | Wall accuse dimming circuit and illumination lamps and lanterns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021013665.3U CN212752671U (en) | 2020-06-05 | 2020-06-05 | Wall accuse dimming circuit and illumination lamps and lanterns |
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| CN212752671U true CN212752671U (en) | 2021-03-19 |
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