CN214256675U - Multi-adaptive dimming LED power supply - Google Patents
Multi-adaptive dimming LED power supply Download PDFInfo
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- CN214256675U CN214256675U CN202120048537.0U CN202120048537U CN214256675U CN 214256675 U CN214256675 U CN 214256675U CN 202120048537 U CN202120048537 U CN 202120048537U CN 214256675 U CN214256675 U CN 214256675U
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Abstract
The utility model discloses a multi-adaptation dimming LED power supply, which is used for matching and managing the luminous brightness of LED lamps with different powers by dimmers of different types, and comprises a three-in-one dimming module, a main control module, a dial-up dimming module and a driving output module; the trinity module of adjusting luminance respectively with the dimmer with main control module connects, uses dial-up power modulation module respectively with main control module with drive output module connects, drive output module respectively with main control module with LED lamps and lanterns are connected. Therefore, only one multi-adaptive dimming LED power supply is required to be compatible with dimmers of different types, the multi-adaptive dimming LED power supply is compatible with various dimming signals, the current is adjustable, the multi-adaptive dimming LED power supply is required to be suitable for LED lamps of different powers, and the social environment is protected, so that the inventory pressure is reduced.
Description
Technical Field
The utility model relates to a power technical field especially relates to a many adaptations LED power of adjusting luminance.
Background
With the idea of energy saving and environmental protection, the LED lighting is widely applied and popularized due to its advantages of low energy consumption and long service life. Along with the continuous expansion of lighting requirements in production and life, the light emitting brightness of the LED lamp is required to be correspondingly adjusted along with factors such as environment and the like. Thus, the LED power source is required to have a corresponding dimming function.
Different types of dimmers are currently on the market: 0-10V light modulator, PWM light modulator and resistance light modulator etc. and the dimming signal singleness that these different types of light modulator produced and the electric current is not adjustable, and in addition different power LED lamps and lanterns need to join in marriage corresponding power LED power, have undoubtedly increased the inventory pressure for social environmental protection.
SUMMERY OF THE UTILITY MODEL
To the defect that above-mentioned prior art exists, the utility model aims to provide a many adaptations LED power of adjusting luminance can adapt to the dimmer of the dimming signal of different grade type.
In order to achieve the above object, the utility model provides a multi-adaptive dimming LED power supply, which is used for matching and managing the luminous brightness of LED lamps with different powers by dimmers with different types, and comprises a three-in-one dimming module, a main control module, a dial-up dimming module and a driving output module; the three-in-one dimming module is respectively connected with the dimmer and the main control module, and is used for receiving a dimming signal of the dimmer and outputting a corresponding control signal to the main control module; the dial power regulating module is respectively connected with the main control module and the driving output module and is used for controlling the main control module to output different current parameters through dial current; the driving output module is respectively connected with the main control module and the LED lamp and used for outputting a driving signal to the driving output module by the main control module, and the driving output module outputs a current parameter to control the LED lamp to emit light.
Preferably, the three-in-one dimming module comprises a dimming chip, a dimming signal input module and a dimming signal output module, and the dimming chip comprises a dimming signal input pin and a dimming signal output pin; the dimming signal input module is respectively connected with the dimmer and the dimming signal input pin, and the dimming signal output module is connected with the dimming signal output pin.
Preferably, the dimming signal input module comprises a first resistor, a first diode, a first capacitor, a first voltage regulator tube and an eleventh capacitor;
the dimming signal input pin is connected with the negative electrode of the first voltage regulator tube, the first end of the first capacitor and the first end of the first resistor, the positive electrode of the first voltage regulator tube is connected with the second end of the first capacitor, the second end of the first resistor is connected with the positive electrode of the first diode, and the negative electrode of the first diode is used for being connected with the dimming signal input of the dimmer and is connected with the analog ground through the eleventh capacitor.
Preferably, the dimming signal output module comprises a second resistor, an optical coupler and a third resistor; the dimming signal output pin is connected with the second end of the optocoupler, the first end of the optocoupler is connected with the second resistor, the third end of the optocoupler is connected with a power ground, and the fourth end of the optocoupler outputs a control signal to the main control module and is connected with the third resistor.
Preferably, the main control module comprises a main control chip, the main control chip comprises a control input pin, and the control input pin is connected with the fourth end of the optocoupler and used for receiving a control signal.
Preferably, the main control chip includes a driving output pin, and the driving output module includes a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second diode, a third diode, an NMOS transistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first transformer, a magnetic ring, and a first interface for externally connecting the LED lamp; a first end of the fourth resistor and a negative electrode of the second diode are connected to the driving output pin, a second end of the fourth resistor, an anode of the second diode and a first end of the fifth resistor are connected to the gate of the NMOS transistor, a second end of the fifth resistor is connected to a power ground, a drain of the NMOS transistor is connected to a first end of the second capacitor, a first end of the sixth resistor, an anode of the third diode and a first end of the first transformer, a second end of the sixth resistor is connected to a first end of the fifth capacitor, a second end of the fifth capacitor is connected to a negative electrode of the third diode, a second end of the first transformer is connected to a first end of the third capacitor, a first end of the seventh resistor, a first end of the eighth resistor and a first end of the magnetic ring, a second end of the third capacitor, a first end of the second diode, a second end of the second capacitor, a first end of the second diode, a first end of the fifth resistor and a first end of the magnetic ring are connected to the drain of the NMOS transistor, a drain of the NMOS transistor is connected to a drain of the second capacitor, a drain of the second diode is connected to a drain of the second capacitor, a drain of the second diode is connected to a drain of the second diode, a drain of the second diode is connected to a drain of the second capacitor, a drain of the first capacitor, a drain of the second diode, a drain of the second capacitor, a drain of the second diode, a drain of the second capacitor, a drain of the second diode, a drain of the first transformer, a drain of the second capacitor, a drain of the second diode, a drain of the second capacitor, a drain of the second diode, a drain of the second capacitor, a, The second end of the resistor, the second end of the eighth resistor and the fourth end of the magnetic ring are all connected with the negative electrode of the third diode, the third end of the magnetic ring is connected with the first end of the fourth capacitor and the second end of the first interface, the second end of the ring is connected with the second end of the fourth capacitor and the first end of the first interface, and the source electrode of the NMOS tube is connected with the dial-up power regulating module.
Preferably, the main control chip includes a power adjusting pin, and the dial power adjusting module includes a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixth capacitor, and a dial switch; the first end of the dial switch is connected with the first end of the tenth resistor, the second end of the dial switch is connected with the first end of the fifteenth resistor, the power adjusting pin is connected with the second end of the tenth resistor, the second end of the fifteenth resistor, the first end of the ninth resistor and the first end of the sixth capacitor, the first ends of the eleventh resistor, the twelfth resistor, the thirteenth resistor and the fourteenth resistor after being connected in parallel are connected with the second end of the ninth resistor and the source electrode of the NMOS transistor, and the second ends of the eleventh resistor, the twelfth resistor, the thirteenth resistor and the fourteenth resistor after being connected in parallel are connected with the second end of the sixth capacitor, the third end and the fourth end of the dial switch and connected with the power ground.
Preferably, the chip of adjusting luminance is including adjusting luminance power pin and adjusting luminance ground pin, trinity module of adjusting luminance is including adjusting luminance power module, adjust luminance power module with adjust luminance the power pin and connect to through setting up filter capacitor with adjust luminance ground of ground pin connection simulation.
Preferably, the main control chip includes main control power supply pin and main control ground pin, main control module includes main control power supply module, main control power supply module with the main control power supply pin is connected to through setting up filter capacitor with main control ground pin connection power ground.
Preferably, the main control module comprises a threshold sampling module, the main control chip comprises a threshold pin, and the threshold sampling module is respectively connected with the threshold pin and the main power supply module.
Compared with the prior art, the beneficial effects of the utility model are that:
1. a multi-adaptive dimming LED power supply is used for matching and managing the luminous brightness of LED lamps with different powers by different types of dimmers and comprises a three-in-one dimming module, a main control module, a dial-up dimming module and a driving output module; the trinity module of adjusting luminance respectively with the dimmer with main control module connects, uses dial-up power modulation module respectively with main control module with drive output module connects, drive output module respectively with main control module with LED lamps and lanterns are connected. Therefore, only one multi-adaptive dimming LED power supply is required to be compatible with dimmers of different types, the multi-adaptive dimming LED power supply is compatible with various dimming signals, the current is adjustable, the multi-adaptive dimming LED power supply is required to be suitable for LED lamps of different powers, and the social environment is protected, so that the inventory pressure is reduced.
2. The optical coupler U3 can play a role that the light emitter emits light when the input end is electrified, the light receiver generates light current after receiving the light, the light current flows out from the output end, the electro-optic-electrical control is realized, and the optical coupler U3 has the advantages of no contact, strong anti-interference capability, insulation between output and input, unidirectional signal transmission and the like.
3. The first diode D1 and the third diode D3 allow current to move only from the anode to the cathode, i.e., allow current to pass in only a single direction, and block current in the reverse direction.
4. The second diode D2 can protect the circuit well and prevent the circuit from being burned out due to short circuit and other problems.
5. The magnetic ring LF1 has certain impedance characteristic, has good inhibition effect on high-frequency noise, and has a radiation protection function.
6. The first transformer T1, the second transformer T2 and the third transformer T3 ensure the electricity safety and meet the voltage and current requirements of various different electrical appliances.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and those skilled in the art can also obtain other drawings without creative efforts.
Fig. 1 is a circuit block diagram of an embodiment of the present invention;
fig. 2 is a schematic circuit diagram provided by the three-in-one dimming module according to the embodiment of the present invention;
fig. 3 is a schematic circuit diagram provided by the main control module according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram provided by the drive output module according to the embodiment of the present invention;
fig. 5 is a schematic circuit diagram provided by the dial power adjusting module according to the embodiment of the present invention.
Description of reference numerals:
10. a three-in-one dimming module; 11. a main control module; 12. a dial power regulating module; 13. a drive output module; 101. a dimming signal input module; 102. a dimming signal output module; 103. a dimming power supply module; 111. a main control power supply module; 112. a threshold sampling module; 20. an LED lamp; 30. a dimmer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The terms "including" and "having," and any variations thereof, in the description and claims of the invention and the above description of the drawings are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. In the specification and claims of the present invention or in the drawings, directional terms such as "upper", "lower", "left", "right", "front", "rear", "side" and the like are used for relative positional description with respect to the drawings provided, and are not used to describe a specific order of actual products.
It should be noted that the terms "analog ground", "power ground", etc. in the description and claims of the present invention and the above-mentioned drawings are all common expressions in the electrical field, and are distinguished and named for avoiding mutual interference between power and signals on the actual circuit board, and the essence is all the connection reference ground.
Referring to fig. 1, an embodiment of the present invention provides a multi-adaptive dimming LED power supply for matching and managing the brightness of different power LED lamps 20 by different types of dimmers 30, which includes a three-in-one dimming module 10, a main control module 11, a dial-up dimming module 12, and a driving output module 13; the three-in-one dimming module 10 is respectively connected with the dimmer 30 and the main control module 11, and is used for receiving a dimming signal of the dimmer and outputting a corresponding control signal to the main control module 11; the dial power regulating module 12 is respectively connected with the main control module 11 and the driving output module 13 and is used for controlling the main control module 11 to output different current parameters through dial current; the driving output module 13 is respectively connected to the main control module 11 and the LED lamp 20, and is configured to output a driving signal to the driving output module 13 from the main control module 11, and the driving output module 13 outputs a current parameter to control the LED lamp 20 to emit light.
Referring to fig. 2, the three-in-one dimming module 10 includes a dimming chip U1 and a dimming signal input module 101, the dimming chip U1 includes a dimming signal input pin, and the dimming signal input module 101 includes a first resistor R1, a first diode D1, a first capacitor C1, a first voltage regulator ZD1, and an eleventh capacitor C11; the dimming signal input pin is connected with the negative electrode of a first voltage regulator tube ZD1, the first end of a first capacitor C1 and the first end of a first resistor R1, the positive electrode of the first voltage regulator tube ZD1 is connected with the second end of the first capacitor C1, and the first voltage regulator tube ZD1 can obtain more stable voltage through series connection. A second terminal of the first resistor R1 is connected to an anode of a first diode D1, a cathode of the first diode D1 is used for connecting a dimming signal DIM input of the dimmer, and an analog ground AG is connected through an eleventh capacitor C11. The first diode D1 allows current to move only from the anode to the cathode, i.e., allows current to pass in only one direction, but blocks current in the opposite direction.
Referring to fig. 2, the three-in-one dimming module 10 includes a dimming signal output module 102, the dimming chip U1 includes a dimming signal output pin, and the dimming signal output module 102 includes a second resistor R2, an optocoupler U3, and a third resistor R3;
the dimming signal output pin is connected with the second end of the optocoupler U3, the first end of the optocoupler U3 is connected with the second resistor R2, the third end of the optocoupler U3 is connected with a power ground GND, and the fourth end of the optocoupler U3 outputs a control signal PWM to the main control module 11 and is connected with the third resistor R3. The optical coupler U3 can play a role that the light emitter emits light when the input end is electrified, the light receiver generates light current after receiving the light, the light current flows out from the output end, the electro-optic-electrical control is realized, and the optical coupler U3 has the advantages of no contact, strong anti-interference capability, insulation between output and input, unidirectional signal transmission and the like.
Referring to fig. 3 and 4, the main control module 11 includes a main control chip U2, and the main control chip U2 includes a control input pin, and the control input pin is connected to the fourth terminal of the optocoupler U3 and is configured to receive the control signal PWM.
The main control chip U2 includes a driving output pin, and the driving output module 13 includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second diode D2, a third diode D3, an NMOS transistor M1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first transformer T1, a magnetic ring LF1, and a first interface J1 for externally connecting the LED lamp;
the first end of the fourth resistor and the cathode of the second diode D2 are connected with the driving output pin, the second end of the fourth resistor, the anode of the second diode D2 and the first end of the fifth resistor R5 are connected with the grid of the NMOS tube M1, the second end of the fifth resistor R5 is connected with the power ground GND, and the fifth resistor R5 and the NMOS tube form a feedback loop, so that the operation is more stable and the performance is improved. The second diode D2 can protect the circuit well and prevent the circuit from being burned out due to short circuit and other problems. The drain of the NMOS transistor M1 is connected to the first end of the second capacitor C2, the first end of the sixth resistor R6, the anode of the third diode D3, and the first end of the first transformer T1, and the NMOS transistor M1 operates in a saturation state as a switching transistor. A second end of the sixth resistor R6 is connected to a first end of a fifth capacitor C5, a second end of the fifth capacitor C5 is connected to a negative electrode of a third diode D3, a second end of the first transformer T1 is connected to a first end of the third capacitor, a first end of the seventh resistor R7, a first end of the eighth resistor R8 and a first end of the magnetic ring LF1, a second end of the third capacitor C3, a second end of the resistor R7, a second end of the eighth resistor R8 and a fourth end of the magnetic ring LF1 are connected to a negative electrode of the third diode D3, a third end of the LF magnetic ring 1 is connected to a first end of the fourth capacitor C4 and a second end of the first interface J1, a second end of the LF1 is connected to a second end of the fourth capacitor C4 and a first end of the first interface J1, and a source of the NMOS transistor M1 is connected to the code-dialing power module 12. The third diode D3 allows current to move only from the anode to the cathode, i.e. allows current to pass in only a single direction, but blocks current in the reverse direction. The magnetic ring LF1 has certain impedance characteristic, has good inhibition effect on high-frequency noise, and has a radiation protection function. The first transformer T1 ensures the safety of electricity and meets the voltage and current requirements of various electric appliances.
Referring to fig. 3 and 5, the main control chip U2 includes a power adjusting pin, and the dial power adjusting module 12 includes 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 sixth capacitor C6, and a dial switch SW 1;
a first end of the dial switch SW1 is connected to a first end of a tenth resistor R10, a second end of the dial switch SW1 is connected to a first end of a fifteenth resistor R15, a power adjusting pin is connected to a second end of the tenth resistor R10, a second end of a fifteenth resistor R15, a first end of a ninth resistor R9 and a first end of a sixth capacitor C6, a first end of the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13 and the fourteenth resistor R14 which are connected in parallel is connected to a second end of the ninth resistor R9 and a source of the NMOS transistor M1, and a second end of the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13 and the fourteenth resistor R14 which are connected in parallel is connected to a second end of the sixth capacitor C6, a third end and a fourth end of the dial switch SW1 are connected to a source ground GND.
Referring to fig. 2, the dimming chip U1 includes a dimming power pin and a dimming ground pin, and the three-in-one dimming module 10 includes a dimming power module 103, wherein the dimming power module 103 is connected to the dimming power pin, and is connected to the analog ground AG through a filter capacitor. Specifically, the dimming power supply module 103 includes a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a fourth diode D4, a fifth diode D5, a second transformer T2, a first transistor Q1, and a second zener diode ZD 2; the dimming power supply pin is connected with the cathode of a fourth diode D4 and the emitter of a first transistor Q1, the collector of the first transistor Q1 is connected with the first end of a seventeenth resistor R17, the first end of a sixteenth resistor R16 and the first end of an eighth capacitor C8, the second end of the sixteenth resistor R16 is connected with the cathode of a fifth diode D5, the second end of the seventeenth resistor R17 is connected with the cathode of a second voltage regulator tube ZD2 and the emitter of the first transistor Q1, and the second voltage regulator tube ZD2 is connected in series to obtain more stable voltage. The first transistor Q1 functions as a voltage amplifier. The anode of the fourth diode D4 is connected to the first end of the ninth capacitor C9, the first end of the eighteenth resistor R18, and the first end of the tenth capacitor C10, the anode of the fifth diode is connected to the first end of the second transformer T2, and the second end of the second transformer T2 is connected to the second end of the eighth capacitor C8, the anode of the second voltage regulator ZD2, the second end of the ninth capacitor C9, and the second end of the eighteenth resistor R18, respectively. The second transformer T2 ensures the safety of electricity and meets the voltage and current requirements of various electric appliances.
Referring to fig. 3, the main control chip U2 includes a main control power pin and a main control ground pin, the main control module 11 includes a main control power module 111, and the main control power module 111 is connected to the main control power pin and is connected to the main control ground GND by setting a filter capacitor. Specifically, the master control power supply module 111 includes a twenty-third resistor R23, a twenty-fifth resistor R25, a sixteenth capacitor C16, a third voltage regulator ZD3, a sixth diode D6, a second transistor Q2, and a third transformer T3; an emitter of the second transistor Q2 is connected with a main control power supply pin, a collector of the second transistor Q2 is connected with a first end of a twenty-third resistor R23, a cathode of a sixth diode D6 and a first end of a sixteenth capacitor C16, a base of the second transistor Q2 is connected with a second end of the twenty-third resistor R23 and a cathode of a third voltage regulator tube ZD3, and the third voltage regulator tube ZD3 is connected in series to obtain more stable voltage. The second transistor Q2 functions as a voltage amplifier. The anode of the sixth diode D6 is connected to the first end of the twenty-fifth resistor R25, and the sixth diode D6 can protect the circuit well, preventing the circuit from being burned out due to short circuit and other problems. A second end of the twenty-fifth resistor R25 is connected to a first end of the third transformer T3, and a second end of the third transformer T3, a second end of the sixteenth capacitor 16, and an anode of the third zener diode ZD3 are both connected to the power ground GND. The third transformer T3 ensures the safety of electricity and meets the voltage and current requirements of various electric appliances.
Further, for the linear stability of the power supply, the main control power supply module 111 further includes a fourteenth capacitor C14, a first end of the fourteenth capacitor C14 is connected to the pin of the main control power supply, and a second end of the fourteenth capacitor C14 is connected to the power supply ground GND, so as to filter the current noise of the power supply.
Referring to fig. 3, the main control module 11 includes a threshold sampling module 112, the main control chip U2 includes a threshold pin ZCS, and the threshold sampling module 112 is connected to the threshold pin and the main power supply module respectively. Specifically, the threshold sampling module 112 includes a twenty-fourth resistor R24, a fifteenth capacitor C15 and a twenty-second resistor R22, the threshold pin is connected to the first end of the twenty-fourth resistor R24, the first end of the fifteenth capacitor C15 and the first end of the twenty-second resistor R22, the second end of the twenty-fourth resistor R24 is connected to the first end of the third transformer T3, and the second ends of the fifteenth capacitor C15 and the twenty-second resistor R22 are connected to the power ground GND.
The utility model discloses a many adaptations LED power operating principle of adjusting luminance is: after the light modulation signal of dimmer is received to trinity light modulation module 10's light modulation signal input module 101, reach the chip of adjusting luminance through the signal input pin of adjusting luminance and carry out signal processing, signal output pin output control signal of adjusting luminance is to light modulation signal output module 102, control signal is through the control input pin that opto-coupler U3 couples to main control chip, then main control chip output drive signal is to drive output module 13, dial code power modulation module 12 is connected with main control module 11's main control chip, through dial code current control main control module 11 output different current parameters, drive output module 13 output current parameter control LED lamps and lanterns are luminous. Therefore, the utility model provides a many adaptations light modulator of compatible different grade type of LED power of adjusting luminance, 0-10V light modulator, PWM light modulator and resistance dimmer etc. have compatible multiple dimming signal of adaptation and realize that the electric current is adjustable, only need a many adaptations light modulator LED power just can adapt to different power LED lamps, help social environmental protection to have reduced the stock pressure.
The above description is only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the utility model, or the direct or indirect application in other related technical fields, are included in the patent protection scope of the utility model.
Claims (10)
1. The utility model provides a LED power of adjusting luminance of many adaptations for the different types of dimmer matches the luminance of managing different power LED lamps and lanterns which characterized in that: the three-in-one dimming module, the main control module, the dial-up dimming module and the driving output module are included;
the three-in-one dimming module is respectively connected with the dimmer and the main control module, and is used for receiving a dimming signal of the dimmer and outputting a corresponding control signal to the main control module;
the dial power regulating module is respectively connected with the main control module and the driving output module and is used for controlling the main control module to output different current parameters through dial current;
the driving output module is respectively connected with the main control module and the LED lamp and used for outputting a driving signal to the driving output module by the main control module, and the driving output module outputs a current parameter to control the LED lamp to emit light.
2. The multi-adaptive dimming LED power supply of claim 1, wherein: the three-in-one dimming module comprises a dimming chip, a dimming signal input module and a dimming signal output module, wherein the dimming chip comprises a dimming signal input pin and a dimming signal output pin;
the dimming signal input module is respectively connected with the dimmer and the dimming signal input pin, and the dimming signal output module is connected with the dimming signal output pin.
3. The multi-adaptive dimming LED power supply of claim 2, wherein: the dimming signal input module comprises a first resistor, a first diode, a first capacitor, a first voltage regulator tube and an eleventh capacitor;
the dimming signal input pin is connected with the negative electrode of the first voltage regulator tube, the first end of the first capacitor and the first end of the first resistor, the positive electrode of the first voltage regulator tube is connected with the second end of the first capacitor, the second end of the first resistor is connected with the positive electrode of the first diode, and the negative electrode of the first diode is used for being connected with the dimming signal input of the dimmer and is connected with the analog ground through the eleventh capacitor.
4. The multi-adaptive dimming LED power supply of claim 2, wherein: the dimming signal output module comprises a second resistor, an optocoupler and a third resistor; the dimming signal output pin is connected with the second end of the optocoupler, the first end of the optocoupler is connected with the second resistor, the third end of the optocoupler is connected with a power ground, and the fourth end of the optocoupler outputs a control signal to the main control module and is connected with the third resistor.
5. The dimmed LED power supply of claim 4, wherein: the master control module comprises a master control chip, the master control chip comprises a control input pin, and the control input pin is connected with the fourth end of the optocoupler and used for receiving a control signal.
6. The multi-adaptive dimming LED power supply of claim 5, wherein: the main control chip comprises a driving output pin, and the driving output module comprises a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second diode, a third diode, an NMOS (N-channel metal oxide semiconductor) tube, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first transformer, a magnetic ring and a first interface for externally connecting the LED lamp;
a first end of the fourth resistor and a negative electrode of the second diode are connected to the driving output pin, a second end of the fourth resistor, an anode of the second diode and a first end of the fifth resistor are connected to the gate of the NMOS transistor, a second end of the fifth resistor is connected to a power ground, a drain of the NMOS transistor is connected to a first end of the second capacitor, a first end of the sixth resistor, an anode of the third diode and a first end of the first transformer, a second end of the sixth resistor is connected to a first end of the fifth capacitor, a second end of the fifth capacitor is connected to a negative electrode of the third diode, a second end of the first transformer is connected to a first end of the third capacitor, a first end of the seventh resistor, a first end of the eighth resistor and a first end of the magnetic ring, a second end of the third capacitor, a first end of the second diode, a second end of the second capacitor, a first end of the second diode, a first end of the fifth resistor and a first end of the magnetic ring are connected to the drain of the NMOS transistor, a drain of the NMOS transistor is connected to a drain of the second capacitor, a drain of the second diode is connected to a drain of the second capacitor, a drain of the second diode is connected to a drain of the second diode, a drain of the second diode is connected to a drain of the second capacitor, a drain of the first capacitor, a drain of the second diode, a drain of the second capacitor, a drain of the second diode, a drain of the second capacitor, a drain of the second diode, a drain of the first transformer, a drain of the second capacitor, a drain of the second diode, a drain of the second capacitor, a drain of the second diode, a drain of the second capacitor, a, The second end of the resistor, the second end of the eighth resistor and the fourth end of the magnetic ring are all connected with the negative electrode of the third diode, the third end of the magnetic ring is connected with the first end of the fourth capacitor and the second end of the first interface, the second end of the ring is connected with the second end of the fourth capacitor and the first end of the first interface, and the source electrode of the NMOS tube is connected with the dial-up power regulating module.
7. The multi-adaptive dimming LED power supply of claim 6, wherein: the main control chip comprises a power adjusting pin, and the dial power adjusting module comprises a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixth capacitor and a dial switch;
the first end of the dial switch is connected with the first end of the tenth resistor, the second end of the dial switch is connected with the first end of the fifteenth resistor, the power adjusting pin is connected with the second end of the tenth resistor, the second end of the fifteenth resistor, the first end of the ninth resistor and the first end of the sixth capacitor, the first ends of the eleventh resistor, the twelfth resistor, the thirteenth resistor and the fourteenth resistor after being connected in parallel are connected with the second end of the ninth resistor and the source electrode of the NMOS transistor, and the second ends of the eleventh resistor, the twelfth resistor, the thirteenth resistor and the fourteenth resistor after being connected in parallel are connected with the second end of the sixth capacitor, the third end and the fourth end of the dial switch and connected with the power ground.
8. The multi-adaptive dimming LED power supply of claim 2, wherein: the chip of adjusting luminance is including adjusting luminance the power pin and adjusting luminance ground pin, trinity module of adjusting luminance is including adjusting luminance power module, adjust luminance power module with adjust luminance the power pin and connect to through setting up filter capacitor with adjust luminance ground pin connection simulation ground.
9. The multi-adaptive dimming LED power supply of claim 5, wherein: the master control chip comprises a master control power supply pin and a master control ground pin, the master control module comprises a master control power supply module, the master control power supply module is connected with the master control power supply pin, and is connected with a power supply ground through a filter capacitor.
10. The multi-adaptive dimming LED power supply of claim 9, wherein: the main control module comprises a threshold value sampling module, the main control chip comprises a threshold value pin, and the threshold value sampling module is respectively connected with the threshold value pin and the main power supply module.
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| CN202120048537.0U CN214256675U (en) | 2021-01-09 | 2021-01-09 | Multi-adaptive dimming LED power supply |
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