CN109729619B - Driving device of light emitting diode - Google Patents
Driving device of light emitting diode Download PDFInfo
- Publication number
- CN109729619B CN109729619B CN201811547244.6A CN201811547244A CN109729619B CN 109729619 B CN109729619 B CN 109729619B CN 201811547244 A CN201811547244 A CN 201811547244A CN 109729619 B CN109729619 B CN 109729619B
- Authority
- CN
- China
- Prior art keywords
- signal
- electrically connected
- power
- terminal
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Communication System (AREA)
- Led Devices (AREA)
Abstract
The invention discloses a light emitting diode driving device, which comprises an address transceiver, a processor and at least one power supply. The address transceiver stores a communication address, receives a smart energy-saving building communication protocol (KNX) signal carrying a driving address, and generates a driving signal when the driving address corresponds to the communication address. The processor is electrically connected with the address transceiver and receives the driving signal to generate at least one power starting signal according to the driving signal. The power supply is electrically connected with the processor and the at least one light emitting diode module and receives the power starting signal so as to drive the light emitting diode module, thereby reducing the light control and management cost.
Description
Technical Field
The present invention relates to a driving device, and more particularly, to a driving device for light emitting diode.
Background
The intelligent energy-saving building communication protocol (KNX) is a professional control technology widely used in various buildings and is a unique open worldwide standard in the control field, and among these applications, the intelligent energy-saving building communication protocol is approved as follows: european standards (CENELEC EN 50090& CEN EN 13321-1), international standards (ISO/IEC 14543-3), American standards (ANSI/ASHRAE 135) and Chinese standards (GB/T20965 and 2013) prove that the intelligent energy-saving building communication protocol is an important target in the future.
The intelligent energy-saving building communication protocol is popularized in China with the intelligent energy-saving building communication protocol China user organization committee, from a complex office to a common house, all electrical control equipment in a building can be controlled remotely through one touch pad, and various fields such as lighting, shading/shutters, security systems, energy management, heating, ventilation, air conditioning systems, signal and monitoring systems, service interfaces, building control systems, remote control, metering, video/audio control, large household appliances and the like can be controlled remotely; not only increases comfort and safety, but also executes space situation, greatly improves energy conservation and further meets the requirements of climate protection and the like. The current lighting mainly comprises Light Emitting Diodes (LEDs), and the drivers meeting the KNX specification in the market are low-voltage dc input and ac input constant-voltage output drivers, which are used for LED color mixing. The LED lighting application is mostly in an alternating current input and constant current output mode, and no alternating current input and constant current output LED driver which conforms to the KNX standard exists in the market at present.
Therefore, the present invention provides a driving device of light emitting diode to solve the problems of the prior art.
Disclosure of Invention
In view of the above problems, the present invention is directed to a light emitting diode driving apparatus, which can directly use a smart energy saving building communication protocol (KNX) signal to drive a light emitting diode module without converting the signal into other different communication protocols, such as a Digital Addressable Lighting Interface (DALI) protocol, and then driving the light emitting diode module, so as to reduce the cost of light control and management.
To achieve the above object, the present invention provides a light emitting diode driving device, which comprises an address transceiver, a processor and at least one power supply. The address transceiver stores a communication address, receives a smart energy-saving building communication protocol (KNX) signal carrying a driving address, and generates a driving signal when the driving address corresponds to the communication address. The processor is electrically connected with the address transceiver and receives the driving signal to generate at least one power starting signal according to the driving signal. The power supply is electrically connected with the processor and the at least one LED module and receives the power starting signal so as to drive the LED module.
In one embodiment of the present invention, the intelligent energy-saving building communication protocol signal is generated by a master device electrically connected to the address transceiver.
In an embodiment of the invention, when the processor stops generating the power-on signal, the processor triggers the address transceiver to generate a response signal carrying the communication address and transmits the response signal to the master control device.
In an embodiment of the invention, the power-on signal is a pwm signal, the processor is electrically connected to a ground terminal and a signal-handling terminal, the signal-handling terminal is electrically connected to the power supply, and the processor receives the ground voltage through the ground terminal and receives the high voltage through the signal-handling terminal, so as to generate the power-on signal at the signal-handling terminal according to the driving signal, the ground voltage and the high voltage.
In an embodiment of the invention, the processor further includes a controller and an electronic switch. The controller is electrically connected with the address transceiver and receives the driving signal. The electronic switch is electrically connected between the signal control end and the grounding end to receive the grounding voltage and the high voltage, the control end of the electronic switch is electrically connected with the controller, and the controller is matched with the high voltage and the grounding voltage to control the switching state of the electronic switch by utilizing the driving signal so as to generate a power supply starting signal at the signal control end. When the controller stops controlling the on-off state of the electronic switch, the controller triggers the address transceiver to generate a response signal.
In an embodiment of the present invention, the electronic switch is an N-channel MOSFET, the gate of which is used as the control terminal, the source of the N-channel MOSFET is electrically connected to the ground terminal, and the drain of the N-channel MOSFET is electrically connected to the signal control terminal.
In an embodiment of the invention, the processor further includes a first resistor and a second resistor. The first resistor is electrically connected between the controller and the gate, and the second resistor is electrically connected between the gate and the source.
In an embodiment of the invention, when the power supply is multiple, the led module is multiple, and all the power supplies are electrically connected to all the led modules respectively.
In an embodiment of the invention, the power supply further includes a transformer, an electronic control switch, a pulse width modulator, a comparison circuit and an optical coupling element. The transformer has a primary side and a secondary side, the primary side receives a fixed voltage, and the secondary side is electrically connected to the LED module. The electronic control switch is electrically connected with the primary side and the grounding terminal. The pulse width modulator is electrically connected with the electronic control switch and controls the on-off state of the electronic control switch so as to store energy in the primary side by using a fixed voltage and convert the energy into an output signal from the secondary side. The comparison circuit is electrically connected with the secondary side and the signal control terminal, receives the output signal and the power starting signal, and compares the output signal with the power starting signal to generate a comparison result. The optical coupling element is electrically connected with the comparison circuit and the pulse width modulator, and the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so that the output signal drives the light emitting diode module and adjusts the brightness of the light emitting diode module.
In an embodiment of the invention, the power supply further includes a transformer, an electronic control switch, a pulse width modulator, a comparison circuit and an optical coupling element. The transformer has a primary side and a secondary side, the primary side receives a fixed voltage, and the secondary side is electrically connected to the LED module. The electronic control switch is electrically connected with the primary side and the grounding terminal. The pulse width modulator is electrically connected with the electronic control switch and the signal control end, receives the power supply starting signal, and controls the switching state of the electronic control switch so as to store energy in the primary side by using a fixed voltage and convert the energy from the secondary side into an output signal. The comparison circuit is electrically connected with the secondary side and a direct current voltage end, receives the output signal and a direct current signal of the direct current voltage end, and compares the output signal and the direct current signal to generate a comparison result. The optical coupling element is electrically connected with the comparison circuit and the pulse width modulator, and the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so that the output signal drives the light emitting diode module and adjusts the brightness of the light emitting diode module.
In an embodiment of the invention, the power-up signal is an analog signal, the processor is electrically connected to a ground terminal and the power supply, and the processor receives the ground voltage through the ground terminal to generate the power-up signal according to the driving signal and the ground voltage.
In an embodiment of the invention, the processor further includes a controller and a power source starter. The controller is electrically connected with the address transceiver and receives the driving signal. The power supply starter is electrically connected with the grounding end and the power supply to receive grounding voltage, and the controller is matched with the grounding voltage to drive the power supply starter to generate a power supply starting signal. When the controller stops driving the power starter to generate the power starting signal, the controller triggers the address transceiver to generate a response signal.
In an embodiment of the invention, the power source starter further includes an amplifier, a first starting resistor, a second starting resistor, a starting capacitor, and a third starting resistor. The amplifier has a negative input terminal, a positive input terminal and an output terminal, and the output terminal is electrically connected to the power supply. The first starting resistor is electrically connected between the output end and the negative input end. The second starting resistor is electrically connected between the negative input end and the grounding end, and the amplifier receives grounding voltage through the second starting resistor. The starting capacitor is electrically connected between the grounding end and the positive input end. The third starting resistor is electrically connected between the positive input end and the controller, and the controller generates a power supply starting signal at the output end by using the first starting resistor, the second starting resistor, the starting capacitor and the third starting resistor to cooperate with the grounding voltage driving amplifier. When the controller stops the driving amplifier from generating the power starting signal, the controller triggers the address transceiver to generate a response signal.
In an embodiment of the invention, the power supply further includes a transformer, an electronic control switch, a pulse width modulator, a comparison circuit and an optical coupling element. The transformer has a primary side and a secondary side, the primary side receives a fixed voltage, and the secondary side is electrically connected to the LED module. The electronic control switch is electrically connected with the primary side and the grounding terminal. The pulse width modulator is electrically connected with the electronic control switch and controls the on-off state of the electronic control switch so as to store energy in the primary side by using a fixed voltage and convert the energy into an output signal from the secondary side. The comparison circuit is electrically connected with the secondary side and the power supply starter, receives the output signal and the power supply starting signal, and compares the output signal with the power supply starting signal to generate a comparison result. The optical coupling element is electrically connected with the comparison circuit and the pulse width modulator, and the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so that the output signal drives the light emitting diode module and adjusts the brightness of the light emitting diode module.
In an embodiment of the invention, the power supply further includes a transformer, an electronic control switch, a pulse width modulator, a comparison circuit and an optical coupling element. The transformer has a primary side and a secondary side, the primary side receives a fixed voltage, and the secondary side is electrically connected to the LED module. The electronic control switch is electrically connected with the primary side and the grounding terminal. The pulse width modulator is electrically connected with the electronic control switch and the power supply starter, receives the power supply starting signal, and controls the switching state of the electronic control switch so as to store energy in the primary side by using a fixed voltage and convert the energy from the secondary side into an output signal. The comparison circuit is electrically connected with the secondary side and a direct current voltage end, receives the output signal and a direct current signal of the direct current voltage end, and compares the output signal and the direct current signal to generate a comparison result. The optical coupling element is electrically connected with the comparison circuit and the pulse width modulator, and the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so that the output signal drives the light emitting diode module and adjusts the brightness of the light emitting diode module.
In an embodiment of the present invention, the led driving apparatus further includes a first printed circuit board and a second printed circuit board. The first printed circuit board has two different surfaces, the address transceiver and the processor are arranged on one of the two surfaces, the other of the two surfaces is provided with a first connecting port, and the address transceiver is electrically connected with the processor through the first printed circuit board. The second printed circuit board is provided with a power supply, an intelligent energy-saving building communication protocol port and a second port, the intelligent energy-saving building communication protocol port is close to the edge of the second printed circuit board, the second port is far away from the edge of the second printed circuit board, the first port is electrically connected with the second port, the intelligent energy-saving building communication protocol port and the address transceiver are electrically connected through the first printed circuit board and the second printed circuit board, the power supply is electrically connected with the processor through the first printed circuit board, the second printed circuit board, the first port and the second port, and the intelligent energy-saving building communication protocol port and the second printed circuit board are in an open circuit state.
In an embodiment of the invention, the area of the first printed circuit board is smaller than the area of the second printed circuit board.
Drawings
FIG. 1 is a circuit block diagram of a light emitting diode driving device according to a first embodiment of the present invention.
FIG. 2 is an exploded view of a second embodiment of a light emitting diode driving device according to the present invention.
FIG. 3 is a circuit diagram of a light emitting diode driving device according to a third embodiment of the present invention.
FIG. 4 is a circuit diagram of a light emitting diode driving device according to a fourth embodiment of the present invention.
FIG. 5 is a circuit diagram of a fifth embodiment of a light emitting diode driving device according to the present invention.
FIG. 6 is a circuit diagram of a light emitting diode driving device according to a sixth embodiment of the present invention.
The following are reference numerals:
10 address transceiver
12 processor
13 signal control terminal
14 power supply
16 Master control device
18 light emitting diode module
20 first printed circuit board
22 second printed circuit board
24 first connection port
26 intelligent energy-saving building communication protocol connection port
28 second connection port
32 controller
34 electronic switch
36 first resistance
38 second resistance
40 Transformer
42 electronic control switch
44 pulse width modulator
46 comparison circuit
48 optical coupling element
49 d.c. voltage terminal
50 power supply starter
52 Amplifier
54 first starting resistance
56 second starting resistance
58 starting capacitor
60 third starting resistance
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
Referring to fig. 1, a first embodiment of the led driving apparatus of the present invention is described, which comprises an address transceiver 10, a processor 12 and at least one power supply 14, wherein the address transceiver 10 is electrically connected to a host device 16, and the power supply 14 is electrically connected to at least one led module 18. The address transceiver 10 stores a communication address, and the host 16 generates a smart energy-saving building communication protocol (KNX) signal K carrying the driving address. The address transceiver 10 receives the intelligent energy-saving building communication protocol signal K, and when the driving address corresponds to the communication address, the address transceiver 10 generates a driving signal D. The processor 12 is electrically connected to the address transceiver 10 and receives the driving signal D to generate a power-up signal P, which may be a pwm signal or an analog signal. In the first embodiment, the number of the power supply 14 and the number of the LED modules 18 are respectively taken as an example. The power supply 14 is electrically connected to the processor 12 and the LED module 18, and receives the power-on signal P to drive the LED module 18. Therefore, the present invention can directly use the intelligent energy-saving building communication protocol signal to drive the LED module 18 without converting into other different communication protocols, such as Digital Addressable Lighting Interface (DALI) protocol, and then driving the LED module 18, so as to reduce the cost of light control and management. In addition, when the processor 12 stops generating the power-up signal P, the processor 12 triggers the address transceiver 10 to generate a response signal R carrying the communication address and transmits the response signal R to the host device 16 to notify the host device 16 that the processor 12 is out of order.
Since the address transceiver 10, the processor 12 and the power supply 14 can be integrated together, when the LED driving device of the present invention is used, it is not necessary to connect any external communication protocol converter, and the intelligent energy-saving building communication protocol (KNX) signal K can be directly used to drive the LED module 18, thereby reducing the cost of installing the converter. Referring to fig. 1 and fig. 2, a second embodiment of the led driving apparatus according to the present invention is described below, which is different from the first embodiment in that the second embodiment further includes a first printed circuit board 20 and a second printed circuit board 22. The first printed circuit board 20 has two different surfaces, the address transceiver 10 and the processor 12 are disposed on one of the two surfaces of the first printed circuit board 20, the other one of the two surfaces of the first printed circuit board 20 is disposed with a first connection port 24, and the address transceiver 10 is electrically connected to the processor 12 through the first printed circuit board 20. The second printed circuit board 22 is provided with a power supply 14, an intelligent energy-saving building communication protocol port 26 and a second port 28. Since the power supply 14 has larger components, the area of the first printed circuit board 20 is smaller than that of the second printed circuit board 22, so that the smart-type energy-saving building communication protocol port 26 is mounted on the second printed circuit board 22 instead of the first printed circuit board 20. Therefore, if the address transceiver 10 and the processor 12 are damaged, the connection port 26 of the intelligent energy-saving building communication protocol is not replaced together, so as to avoid wasting the component cost. In order to receive the intelligent energy-saving building communication protocol signal K and reduce the occupied area of the whole led driving apparatus, the intelligent energy-saving building communication protocol port 26 is close to the edge of the second pcb 22, and the second port 28 is far from the edge of the second pcb 22. The first connection port 24 is electrically connected to the second connection port 28 for electrically connecting the intelligent energy-saving building communication protocol connection port 26 and the address transceiver 10 through the first printed circuit board 20 and the second printed circuit board 22, and the power supply 14 is electrically connected to the processor 12 through the first printed circuit board 20, the second printed circuit board 22, the first connection port 24 and the second connection port 28. The connection port 26 of the intelligent energy-saving building communication protocol and the second printed circuit board 22 are open. The operation of the second embodiment is the same as that of the first embodiment, and is not described herein again.
Referring to fig. 3, a third embodiment of the led driving apparatus of the present invention is described, which is different from the first embodiment in that the processor 12 and the power supply 14 are formed inside, the power-up signal P is a pwm signal, the number of the power supply 14 and the led modules 18 is a plurality of examples, and all the power supplies 14 are electrically connected to all the led modules 18.
The processor 12 is electrically connected to a ground terminal and a signal manipulation terminal 13, the signal manipulation terminal 13 is electrically connected to the power supply 14, the processor 12 receives a ground voltage through the ground terminal and receives a high voltage H through the signal manipulation terminal 13, so as to generate a power activation signal P at the signal manipulation terminal 13 according to the driving signal D, the ground voltage and the high voltage H. The processor 12 further includes a controller 32, an electronic switch 34, a first resistor 36 and a second resistor 38. The controller 32 is electrically connected to the address transceiver 10 and receives the driving signal D. The electronic switch 34 is electrically connected between the signal control terminal 13 and the ground terminal to receive the ground voltage and the high voltage H. The control terminal of the electronic switch 34 is electrically connected to the controller 32, and the controller 32 controls the on/off state of the electronic switch 34 by the driving signal D in cooperation with the high voltage H and the ground voltage, so as to generate the power-on signal P at the signal control terminal 13. When the controller 32 stops controlling the on-off state of the electronic switch 34, the controller 32 triggers the address transceiver 10 to generate the response signal R. Specifically, the electronic switch 34 is an N-channel MOSFET, the gate thereof is used as a control terminal, the source of the N-channel MOSFET is electrically connected to the ground terminal, and the drain of the N-channel MOSFET is electrically connected to the signal control terminal 13. The first resistor 36 is electrically connected between the controller 32 and the gate of the N-channel MOSFET, and the second resistor 38 is electrically connected between the gate and the source of the N-channel MOSFET.
Each power supply 14 further includes a transformer 40, an electronically controlled switch 42, a pulse width modulator 44, a comparison circuit 46 and an optocoupler 48. The transformer 40 has a primary side receiving a fixed voltage F and a secondary side electrically connected to the corresponding LED module 18. The electronic control switch 42 is electrically connected to the primary side of the transformer 40 and the ground. The pulse width modulator 44 is electrically connected to the electronic control switch 42 and controls the on/off state of the electronic control switch 42 to store energy in the primary side by using a fixed voltage F and convert the energy from the secondary side into an output signal O, wherein the output signal O may be an output voltage or an output current. The comparison circuit 46 is electrically connected to the secondary side and the signal control terminal 13, receives the output signal O and the power-on signal P, and compares the output signal O with the power-on signal P to generate a comparison result T. If the output signal O is an output current, the comparison circuit 46 may first convert the output current into a corresponding voltage by using a resistor, and then compare the corresponding voltage with the power-on signal P to generate a comparison result T. The optical coupling element 48 is electrically connected to the comparing circuit 46 and the pulse width modulator 44, and the pulse width modulator 44 receives the comparison result T through the optical coupling element 48 to change the output signal O, so as to drive the corresponding led module 18 by the output signal O and adjust the brightness of the corresponding led module 18. The present invention can directly use the intelligent energy-saving building communication protocol signal to drive the LED module 18 through the power supply 14 by using the address transceiver 10 and the processor 12, without converting into other different communication protocols, such as Digital Addressable Lighting Interface (DALI) protocol, and then driving the LED module 18, so as to reduce the cost of light control and management.
The operation of the led driving apparatus according to the third embodiment of the present invention is described below. First, the address transceiver 10 receives the intelligent energy-saving building communication protocol signal K, and when the driving address corresponds to the communication address, the address transceiver 10 generates the driving signal D. The controller 32 receives the driving signal D and controls the on/off state of the electronic switch 34 by the driving signal D in cooperation with the high voltage H and the ground voltage, so as to generate the power-on signal P at the signal-controlling terminal 13. Meanwhile, the primary side of the transformer 40 receives a constant voltage F, and the pulse width modulator 44 controls the on/off state of the electronic control switch 42 to store energy in the primary side by the constant voltage F and convert the energy from the secondary side into the output signal O. Then, the comparison circuit 46 receives the output signal O and the power-up signal P, compares the output signal O with the power-up signal P to generate a comparison result T, and transmits the comparison result T to the pulse width modulator 44 through the optical coupling element 48. The pulse width modulator 44 changes the output signal O according to the comparison result T, so as to drive the corresponding LED module 18 again by the output signal O and adjust the brightness of the corresponding LED module 18.
Referring to fig. 4, a fourth embodiment of the led driving apparatus according to the present invention is described, which is different from the third embodiment in the internal components of the power supply 14. In the fourth embodiment, the signal control terminal 13 is electrically connected to the pulse width modulator 44, and the pulse width modulator 44 receives the power-on signal P and thereby controls the on-off state of the electronically controlled switch 42 to store energy in the primary side by the constant voltage F and convert the energy from the secondary side into the output signal O. In addition, the comparison circuit 46 is electrically connected to a dc voltage terminal 49 instead of the signal control terminal. The comparison circuit 46 receives the output signal O and the dc signal DV at the dc voltage terminal 49, and compares the output signal O with the dc signal DV to generate a comparison result T. The remaining technical features of the fourth embodiment are the same as those of the third embodiment, and are not described herein again.
Referring to fig. 5, a fifth embodiment of the led driving apparatus of the present invention is described, which is different from the first embodiment in that the processor 12 and the power supply 14 are formed inside, the power-up signal P is an analog signal, the number of the power supply 14 and the led modules 18 is a plurality, and all the power supplies 14 are electrically connected to all the led modules 18.
The processor 12 is electrically connected to a ground and at least one power supply 14. In the fifth embodiment, the power supply 14 is also exemplified by a plurality. The processor 12 receives the ground voltage through the ground terminal to generate the power-up signal P according to the driving signal D and the ground voltage. The processor 12 further includes a controller 32 and a power initiator 50. The controller 32 is electrically connected to the address transceiver 10 and the power source starter 50, and receives the driving signal D. The power starter 50 is electrically connected to all the power supplies 14 and the ground terminal to receive the ground voltage. The controller 32 drives the power initiator 50 to generate the power initiation signal P in cooperation with the ground voltage. The power supply 14 receives the power-on signal P to drive all the LED modules 18 respectively. When the controller 32 stops driving the power initiator 50 to generate the power initiation signal P, the controller 32 triggers the address transceiver 10 to generate the response signal R.
The power starter 50 further includes an amplifier 52, a first starting resistor 54, a second starting resistor 56, a starting capacitor 58 and a third starting resistor 60. The amplifier 52 has a negative input terminal, a positive input terminal and an output terminal, and the output terminal is electrically connected to the power supply 14. The first starting resistor 54 is electrically connected between the output terminal and the negative input terminal of the amplifier 52. The second start-up resistor 56 is electrically connected between the negative input terminal of the amplifier 52 and the ground terminal, and the amplifier 52 receives the ground voltage through the second start-up resistor 56. The start-up capacitor 58 is electrically connected between ground and the positive input of the amplifier 52. The third starting resistor 60 is electrically connected between the positive input terminal of the amplifier 52 and the controller 32, and the controller 32 drives the amplifier 52 to generate the power-up signal P at the output terminal of the amplifier 52 by using the first starting resistor 54, the second starting resistor 56, the starting capacitor 58 and the third starting resistor 60 in cooperation with the ground voltage. When the controller 32 stops the driving amplifier 52 from generating the power-up signal P, the controller 32 triggers the address transceiver 10 to generate the response signal R.
Each power supply 14 further includes a transformer 40, an electronically controlled switch 42, a pulse width modulator 44, a comparison circuit 46 and an optocoupler 48. The transformer 40 has a primary side receiving a fixed voltage F and a secondary side electrically connected to the corresponding LED module 18. The electronic control switch 42 is electrically connected to the primary side of the transformer 40 and the ground. The pulse width modulator 44 is electrically connected to the electronic control switch 42 and controls the on/off state of the electronic control switch 42 to store energy in the primary side by using a fixed voltage F and convert the energy from the secondary side into an output signal O, wherein the output signal O may be an output voltage or an output current. The comparison circuit 46 is electrically connected to the output terminal of the amplifier 52 of the secondary side and the power starter 50, receives the output signal O and the power start signal P, and compares the output signal O and the power start signal P to generate a comparison result T. If the output signal O is an output current, the comparison circuit 46 may first convert the output current into a corresponding voltage by using a resistor, and then compare the corresponding voltage with the power-on signal P to generate a comparison result T. The optical coupling element 48 is electrically connected to the comparing circuit 46 and the pulse width modulator 44, and the pulse width modulator 44 receives the comparison result T through the optical coupling element 48 to change the output signal O, so as to drive the corresponding led module 18 by the output signal O and adjust the brightness of the led module 18. The fifth embodiment can achieve the same object as the third embodiment.
Referring to fig. 6, a sixth embodiment of the led driving apparatus according to the present invention is described, which is different from the fifth embodiment in the internal components of the power supply 14. In the sixth embodiment, the output terminal of the amplifier 52 of the power starter 50 is not electrically connected to the comparison circuit 46, and the output terminal of the amplifier 52 of the power starter 50 is electrically connected to the pulse width modulator. The pulse width modulator 44 receives the power-on signal P and thereby controls the on-off state of the electronically controlled switch 42 to store energy in the primary side using a fixed voltage F and convert energy from the secondary side into an output signal O. In addition, the comparison circuit 46 is electrically connected to a dc voltage terminal 49. The comparison circuit 46 receives the output signal O and the dc signal DV at the dc voltage terminal 49, and compares the output signal O with the dc signal DV to generate a comparison result T. The remaining technical features of the sixth embodiment are the same as those of the fifth embodiment, and are not described herein again.
In summary, the present invention can directly use the intelligent energy-saving building communication protocol signal to drive the light emitting diode module without converting into other different communication protocols and then driving the light emitting diode module, so as to reduce the cost of light control and management.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that equivalent changes and modifications in the shape, structure, characteristics and spirit of the present invention as described in the claims should be included in the protection scope of the present invention.
Claims (16)
1. A driving device of light emitting diode is characterized in that it comprises:
an address transceiver storing a communication address, the address transceiver receiving a smart energy-saving building communication protocol signal carrying a driving address, the address transceiver generating a driving signal when the driving address corresponds to the communication address;
a processor electrically connected to the address transceiver and receiving the driving signal to generate a power-on signal;
at least one power supply electrically connected to the processor and the at least one LED module and receiving the power activation signal to drive the at least one LED module; a first printed circuit board having two different surfaces, the address transceiver and the processor being disposed on one of the two surfaces, the other of the two surfaces having a first connection port, the address transceiver being electrically connected to the processor through the first printed circuit board; and a second printed circuit board, on which the at least one power supply, a smart energy saving building communication protocol port and a second port are installed, the smart energy saving building communication protocol port is close to the edge of the second printed circuit board, the second port is far away from the edge of the second printed circuit board, the first port is electrically connected to the second port, so as to electrically connect the smart energy saving building communication protocol port and the address transceiver through the first printed circuit board and the second printed circuit board, and the at least one power supply is electrically connected to the processor through the first printed circuit board, the second printed circuit board, the first port and the second port, and the smart energy saving building communication protocol port and the second printed circuit board are in an open circuit state.
2. The apparatus of claim 1, wherein: the intelligent energy-saving building communication protocol signal is generated by a master control device electrically connected to the address transceiver.
3. The apparatus of claim 2, wherein: when the processor stops generating the power-on signal, the processor triggers the address transceiver to generate a response signal carrying the communication address and transmits the response signal to the master control device.
4. A light emitting diode driving apparatus as claimed in claim 3, wherein: the processor receives a ground voltage through the ground terminal and receives a high voltage through the signal control terminal so as to generate the power starting signal at the signal control terminal according to the driving signal, the ground voltage and the high voltage.
5. The LED driving apparatus according to claim 4, wherein: the processor further includes:
a controller electrically connected to the address transceiver and receiving the driving signal; and
an electronic switch electrically connected between the signal control terminal and the ground terminal for receiving the ground voltage and the high voltage, wherein a control terminal of the electronic switch is electrically connected to the controller, the controller controls a switching state of the electronic switch by the driving signal in cooperation with the high voltage and the ground voltage, and further generates the power start signal at the signal control terminal, and when the controller stops controlling the switching state of the electronic switch, the controller triggers the address transceiver to generate the response signal.
6. The apparatus of claim 5, wherein: the electronic switch is an N-channel MOSFET, the gate of which is used as the control terminal, the source of the N-channel MOSFET is electrically connected to the ground terminal, and the drain of the N-channel MOSFET is electrically connected to the signal control terminal.
7. The apparatus of claim 6, wherein: the processor further includes:
a first resistor electrically connected between the controller and the gate; and
a second resistor electrically connected between the gate and the source.
8. The apparatus of claim 1, wherein: when the number of the power supplies is multiple, the number of the light emitting diode modules is multiple, and the power supplies are respectively electrically connected with the light emitting diode modules.
9. The LED driving apparatus according to claim 4, wherein: the at least one power supply further comprises:
a transformer having a primary side and a secondary side, wherein the primary side receives a fixed voltage, and the secondary side is electrically connected to the at least one LED module;
an electronic control switch electrically connected to the primary side and the ground terminal;
a pulse width modulator electrically connected to the electronic control switch and controlling the on-off state of the electronic control switch to store energy in the primary side by using the fixed voltage and convert the energy into an output signal from the secondary side;
a comparison circuit electrically connected to the secondary side and the signal control terminal, receiving the output signal and the power start signal, and comparing the output signal and the power start signal to generate a comparison result; and
an optical coupling element electrically connected to the comparing circuit and the pulse width modulator, wherein the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so as to drive the at least one LED module by the output signal and adjust the brightness of the at least one LED module.
10. The LED driving apparatus according to claim 4, wherein: the at least one power supply further comprises:
a transformer having a primary side and a secondary side, wherein the primary side receives a fixed voltage, and the secondary side is electrically connected to the at least one LED module;
an electronic control switch electrically connected to the primary side and the ground terminal;
a pulse width modulator electrically connected to the electronic control switch and the signal control terminal, and receiving the power start signal, and thereby controlling the on-off state of the electronic control switch, so as to store energy in the primary side by using the fixed voltage, and convert the energy into an output signal from the secondary side;
a comparison circuit electrically connected to the secondary side and a DC voltage terminal, receiving the output signal and the DC signal of the DC voltage terminal, and comparing the output signal and the DC signal to generate a comparison result; and
an optical coupling element electrically connected to the comparison circuit and the pulse width modulator, the pulse width modulator receiving the comparison result through the optical coupling element to change the output signal accordingly,
the output signal is used to drive the at least one LED module and adjust the brightness of the at least one LED module.
11. A light emitting diode driving apparatus as claimed in claim 3, wherein: the processor receives a ground voltage through the ground terminal to generate the power-up signal according to the driving signal and the ground voltage.
12. The apparatus of claim 11, wherein: the processor further includes:
a controller electrically connected to the address transceiver and receiving the driving signal; and
the controller is matched with the grounding voltage to drive the power starter to generate the power starting signal, and when the controller stops driving the power starter to generate the power starting signal, the controller triggers the address transceiver to generate the response signal.
13. The apparatus of claim 12, wherein: the power starter further comprises:
an amplifier having a negative input terminal, a positive input terminal and an output terminal, the output terminal being electrically connected to the at least one power supply;
the first starting resistor is electrically connected between the output end and the negative input end;
the amplifier receives the grounding voltage through the second starting resistor;
a starting capacitor electrically connected between the grounding end and the positive input end; and
the controller drives the amplifier to generate the power starting signal at the output end by using the first starting resistor, the second starting resistor, the starting capacitor and the third starting resistor in cooperation with the ground voltage, and triggers the address transceiver to generate the response signal when the controller stops driving the amplifier to generate the power starting signal.
14. The apparatus of claim 12, wherein: the at least one power supply further comprises:
a transformer having a primary side and a secondary side, wherein the primary side receives a fixed voltage, and the secondary side is electrically connected to the at least one LED module;
an electronic control switch electrically connected to the primary side and the ground terminal;
a pulse width modulator electrically connected to the electronic control switch and controlling the on-off state of the electronic control switch to store energy in the primary side by using the fixed voltage and convert the energy into an output signal from the secondary side;
a comparison circuit electrically connected to the secondary side and the power supply starter, receiving the output signal and the power supply starting signal, and comparing the output signal and the power supply starting signal to generate a comparison result; and
an optical coupling element electrically connected to the comparing circuit and the pulse width modulator, wherein the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so as to drive the at least one LED module by the output signal and adjust the brightness of the at least one LED module.
15. The apparatus of claim 12, wherein: the at least one power supply further comprises:
a transformer having a primary side and a secondary side, wherein the primary side receives a fixed voltage, and the secondary side is electrically connected to the at least one LED module;
an electronic control switch electrically connected to the primary side and the ground terminal;
a pulse width modulator electrically connected to the electronic control switch and the power supply starter, receiving the power supply starting signal, and controlling the on-off state of the electronic control switch to store energy in the primary side by using the fixed voltage and convert the energy into an output signal from the secondary side;
a comparison circuit electrically connected to the secondary side and a DC voltage terminal, receiving the output signal and the DC signal of the DC voltage terminal, and comparing the output signal and the DC signal to generate a comparison result; and
an optical coupling element electrically connected to the comparing circuit and the pulse width modulator, wherein the pulse width modulator receives the comparison result through the optical coupling element to change the output signal, so as to drive the at least one LED module by the output signal and adjust the brightness of the at least one LED module.
16. The apparatus of claim 1, wherein: the area of the first printed circuit board is smaller than that of the second printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547244.6A CN109729619B (en) | 2018-12-18 | 2018-12-18 | Driving device of light emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547244.6A CN109729619B (en) | 2018-12-18 | 2018-12-18 | Driving device of light emitting diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109729619A CN109729619A (en) | 2019-05-07 |
| CN109729619B true CN109729619B (en) | 2020-08-18 |
Family
ID=66296830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811547244.6A Active CN109729619B (en) | 2018-12-18 | 2018-12-18 | Driving device of light emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109729619B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874640A (en) * | 2006-06-09 | 2006-12-06 | 浙江大学 | Intelligent illumination system, and control method |
| TW200845643A (en) * | 2007-02-09 | 2008-11-16 | Clipsal Australia Pty Ltd | Wireless network communications system |
| CN203691727U (en) * | 2014-02-25 | 2014-07-02 | 陕西科技大学 | Supermarket LED intelligent lighting system based on KNX bus |
| CN203775483U (en) * | 2014-03-17 | 2014-08-13 | 陕西科技大学 | Intelligent LED light modulator based on KNX bus |
| CN104269046A (en) * | 2014-10-27 | 2015-01-07 | 上海龙创节能系统股份有限公司 | Bus communication based infrared remote control device |
| CN205124066U (en) * | 2015-11-03 | 2016-03-30 | 合肥伊科耐软件有限公司 | Intelligent lighting control system based on KNX agreement |
| TWM527525U (en) * | 2016-05-16 | 2016-08-21 | 佐臻股份有限公司 | Intelligent lighting device capable of reducing power consumption in standby |
| CN207099404U (en) * | 2017-08-29 | 2018-03-13 | 合肥伊科耐软件有限公司 | Spliced switch controller based on KNX agreements |
| CN207337133U (en) * | 2017-09-21 | 2018-05-08 | 广州视声智能股份有限公司 | A kind of general purpose controller |
-
2018
- 2018-12-18 CN CN201811547244.6A patent/CN109729619B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874640A (en) * | 2006-06-09 | 2006-12-06 | 浙江大学 | Intelligent illumination system, and control method |
| TW200845643A (en) * | 2007-02-09 | 2008-11-16 | Clipsal Australia Pty Ltd | Wireless network communications system |
| CN203691727U (en) * | 2014-02-25 | 2014-07-02 | 陕西科技大学 | Supermarket LED intelligent lighting system based on KNX bus |
| CN203775483U (en) * | 2014-03-17 | 2014-08-13 | 陕西科技大学 | Intelligent LED light modulator based on KNX bus |
| CN104269046A (en) * | 2014-10-27 | 2015-01-07 | 上海龙创节能系统股份有限公司 | Bus communication based infrared remote control device |
| CN205124066U (en) * | 2015-11-03 | 2016-03-30 | 合肥伊科耐软件有限公司 | Intelligent lighting control system based on KNX agreement |
| TWM527525U (en) * | 2016-05-16 | 2016-08-21 | 佐臻股份有限公司 | Intelligent lighting device capable of reducing power consumption in standby |
| CN207099404U (en) * | 2017-08-29 | 2018-03-13 | 合肥伊科耐软件有限公司 | Spliced switch controller based on KNX agreements |
| CN207337133U (en) * | 2017-09-21 | 2018-05-08 | 广州视声智能股份有限公司 | A kind of general purpose controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109729619A (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180323724A1 (en) | Low voltager touch panel | |
| TWI528856B (en) | Led dimming driver | |
| CN103748965B (en) | In response to the output of dimmer to the control of the light output of one or more LED | |
| US9360198B2 (en) | Adjustable output solid-state lighting device | |
| US20120319477A1 (en) | Lighting system | |
| TW201534180A (en) | A lighting device a lighting assembly and a regulating element | |
| US20180110112A1 (en) | Rf controlled switch box without using neutral wire and an rf controlled circuit thereof | |
| US10039175B1 (en) | Delay module for LED lighting fixtures | |
| CN109309985B (en) | Lighting system | |
| CN109729619B (en) | Driving device of light emitting diode | |
| WO2015061954A1 (en) | Method for controlling and operating load by using control command of changing conduction angle of ac voltage and adjustment and control apparatus thereof | |
| TWI678130B (en) | Light emitting diode driving device | |
| CN215121260U (en) | Ceiling fan lamp control circuit and ceiling fan lamp | |
| CN107889321B (en) | Driving circuit | |
| CN213783648U (en) | LED lamp | |
| US11480324B2 (en) | Controllable modular luminaire driver | |
| US20210350640A1 (en) | A system and scanning device for granting user access using a bluetooth low energy (ble) mesh | |
| CN212137989U (en) | Control circuit and intelligent lamp | |
| CN211503155U (en) | Inner panel current loop circuit and air conditioner inner unit | |
| KR100806830B1 (en) | Switching device | |
| CN110121231A (en) | Dimmer switch device and its action event judgment method | |
| US11348745B1 (en) | Home automation apparatus | |
| TWM553090U (en) | Lighting system | |
| CN208549044U (en) | A kind of metal-oxide-semiconductor intelligent dimming control module | |
| CN108243527B (en) | Lighting device and illuminating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |