EP3945752A1 - Zweiweg-mehrweg-leuchtdiodensteuerschaltungen und verfahren zur steuerung von leuchtdioden - Google Patents

Zweiweg-mehrweg-leuchtdiodensteuerschaltungen und verfahren zur steuerung von leuchtdioden Download PDF

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Publication number
EP3945752A1
EP3945752A1 EP20188490.5A EP20188490A EP3945752A1 EP 3945752 A1 EP3945752 A1 EP 3945752A1 EP 20188490 A EP20188490 A EP 20188490A EP 3945752 A1 EP3945752 A1 EP 3945752A1
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Prior art keywords
pin
line
state
operates
pin operates
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EP20188490.5A
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English (en)
French (fr)
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Yongbin WANG
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Shenzhen Yifengyuan Technology Co Ltd
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Shenzhen Yifengyuan Technology Co Ltd
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Priority to EP20188490.5A priority Critical patent/EP3945752A1/de
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/42—Antiparallel configurations

Definitions

  • the present invention generally relates to electronic circuits and more particularly relates to two-way to multi-way light emitting diode (LED) control circuit for controlling electrodeless LEDs.
  • LED light emitting diode
  • a two-way light emitting diode (LED) control circuit for illuminating at least one of a first LED and a second LED.
  • the circuit comprises an integrated circuit (IC) having a first input-output (I/O) pin and a second I/O pin. Each of the first I/O pin and the second I/O pin is configured to operate in one of a low state and a high state.
  • the circuit also comprises a first line connected with the first I/O pin and a second line connected with the second I/O pin. Each of the first LED and the second LED is coupled between the first line and the second line. And, at least one of the first LED and the second LED is illuminated based on a level of the first line and the second line. The level is one of a high level and a low level.
  • a method for illuminating at least one of a first LED and a second LED comprising the steps of operating a first input-output (I/O) pin and a second I/O pin of an Integrated Circuit (IC) in one of a low state and a high state and operating a first line and a second line in one of a high level and a low level. Further, the first line is connected with the first I/O pin and the second line is connected with the second I/O pin. The method further comprising the step of illuminating the at least one of the first LED and the second LED coupled between the first line and the second line based on the high level or the low level of the first line and the second line.
  • I/O input-output
  • IC Integrated Circuit
  • the LED control circuit 100A is a two-way positive and negative electrodeless output and working of the LED control circuit 100A for an output of large-current direct-drive chip is explained herein.
  • the LED control circuit 100A comprises, but is not limited to, an integrated circuit (IC) 102, one or more wires/lines W1 and W2, a plurality of electrodeless LEDs i.e. a first LED L1 and a second LED L2.
  • the integrated circuit 102 has a total of seven pins including a first I/O pin IO1, a second I/O pin IO2, a first oscillator pin OSC1, a second oscillator pin OSC2, a voltage pin VDD, a trigger pin TR and a ground pin GND.
  • the first oscillator pin OSC1 and the second oscillator pin OSC2 are coupled to a crystal oscillator for providing a constant frequency output under varying load conditions.
  • the ground pin GND enables the current in the IC to flow to the ground.
  • the voltage pin VDD is coupled to a power supply that provides power to the circuit 100A.
  • the trigger pin TR controls timing of a control cycle of the integrated circuit 102 and is connected to the ground through a push switch S.
  • the first I/O pin IO1 is connected directly with the first line W1 and the second I/O pin IO2 is connected directly with the second line W2.
  • the term "directly” used herein means that each of the I/O pins are connected to their respective lines without any presence of additional components like resistors, capacitors or switches in between. It is to be noted here that the first I/O pin IO1 and the second I/O pin 102 can operate in a static state or in an output state.
  • the mode of the first I/O pin IO1 and the second I/O pin IO2 will be changed for once. In other words, the mode of the first I/O pin IO1 and the second I/O pin IO2 will change whenever the push switch S is triggered.
  • each of the first LED L1 and the second LED L2 are coupled in between the first line W1 and the second line W2.
  • each of the first LED L1 and the second LED L2 comprises a positive (+ve) terminal and a negative (-ve) terminal.
  • a positive terminal of the first LED L1 is connected to the second line W2 and a negative terminal of the first LED L1 is connected to the first line W1.
  • a positive terminal of the second LED L2 is connected to the first line W1 and a negative terminal of the second LED L2 is connected to the second line W2. It is understood for a person skilled in the art that the LEDs are unidirectional in nature and thus, the current only flows from a positive terminal of an LED to a negative terminal of the LED and restricting flow of current in the opposite direction.
  • the circuit 100A When the circuit 100A is turned on, the circuit 100A is configured to operate each of the first I/O pin IO1 and the second I/O pin 102 in one of a high state and a low state. Based on the state of the I/O pins, the circuit 100A is configured to operate the lines W1-W2 in one of a high level and a low level and accordingly, the first LED L1 or the second LED L2 is illuminated based on the level the lines W1-W2. The explanation for illuminating each LED will be explained below in greater details.
  • the integrated circuit 102 is configured to operate the first I/O pin IO1 in the low state and the second I/O pin 102 in the high state.
  • the first line W1 operates in the low level and the second line W2 operates in the high level causing the current to flow from the second I/O pin 102 to the second line W2 and reaches to the first line W1.
  • voltage V2 across the second line W2 is more than voltage V1 across the first line W1. This voltage difference in voltage between the first line W1 and the second line W2 creates a potential difference across the lines W1 and W2.
  • the current flows from the second line W2 to the first line W1 resulting in illumination of the first LED L1.
  • the integrated circuit 102 is configured to operate the first I/O pin IO1 in the high state and the second I/O pin IO2 in the low state.
  • the first line W1 operates in the high level and the second line W2 operates in the low level causing the current to flow from the first I/O pin IO1 to the first line W1 and reaches to the second line W2.
  • voltage V2 across the second line W2 is lesser than voltage V1 across the first line W1.
  • This voltage difference in voltage between the first line W1 and the second line W2 creates a potential difference across the lines W1 and W2.
  • the first line W1 operates in the high level i.e. higher voltage
  • the second line W2 operates in the low level i.e. lower voltage
  • the current flows from the first line W1 to the second line W2 resulting in illumination of the second LED L2.
  • the present invention also encompasses several other possible combination of states of the first I/O pin IO1 and the second I/O pin IO2 where both of the first LED L1 and the second LED L2 will remain off. For an instance, in an event both of the first I/O pin IO1 and the second I/O pin IO2 are operating in the high state, the none of the first LED L1 and the second LED L2 will be illuminated. In another instance, the first LED L1 and the second LED L2 will be off when the first I/O pin IO1 and the second I/O pin IO2 are operating in the high state and a suspended state, respectively.
  • the first LED L1 and the second LED L2 will be off when both of the first I/O pin IO1 and the second I/O pin IO2 are operating in the low state. In another example, the first LED L1 and the second LED L2 will be off when the first I/O pin IO1 and the second I/O pin 102 are operating in the low state and a suspended state, respectively. In yet another example, the first LED L1 and the second LED L2 will be off when both of the first I/O pin IO1 and the second I/O pin IO2 are operating in the suspended state.
  • the two-way LED control circuit 100B is a two-way positive and negative electrodeless output and comprises, but is not limited to, an integrated circuit (IC) 102, one or more wires/lines W1 and W2, a plurality of electrodeless LEDs i.e. a first LED L1 and a second LED L2.
  • IC integrated circuit
  • the integrated circuit 102 has a total of nine pins including a first I/O pin IO1, a second I/O pin 102, a first oscillator pin OSC1, a second oscillator pin OSC2, a voltage pin VDD, a first trigger pin TR1, a second trigger pin TR2, a control pin CH and a ground pin GND.
  • the first trigger pin TR1 is connected to a first push switch S1 and the second trigger pin TR2 is connected to a second push switch S2.
  • the control pin CH is connected to a third switch K.
  • first trigger pin TR1 is connected to the ground through the first push switch S1
  • second trigger pin TR2 is connected to the ground through the second push switch S2
  • the control pin CH is connected to the ground through the third switch K.
  • the usage of these switches would control the timings of the integrated circuit 102 through the first timer pin TR1 and the second timer pin TR2.
  • first LED L1 and the second LED L2 in this circuit 100B are connected in the same manner as that of the circuit 100A, thus, the first LED L1 and the second LED L2 are illuminated in the same way as described above in FIG. 1A .
  • the first trigger pin TR1, the control pin CH and the second trigger pin TR2 are input control parts of a microcontroller (MCU) or the IC 102. Further, the first push switch S1 and the second push switch S2 are used for selecting and controlling various changes of output load. If there are more than 10 change modes in outputting or glowing of LEDs L1 and L2, the first push switch S1 can be triggered to control such change modes. When the first push switch S1 is triggered, the states of I/O pins is changed and when the first push switch S1 is triggered again, the states of I/O pins is changed again. Thus, there's one change mode corresponding to one trigger and so on and so forth.
  • MCU microcontroller
  • the first push switch S1 and the second push switch S2 are used for selecting and controlling various changes of output load. If there are more than 10 change modes in outputting or glowing of LEDs L1 and L2, the first push switch S1 can be triggered to control such change modes.
  • the states of I/O pins is changed and when the
  • the luminance of string lights L1 and L2 can be adjusted or the time or color can be selected which is equal to the control switch.
  • the control pin CH is used for timing and non-timing fixed mode in which opening of the third switch K is for timing (the time can be set randomly or as per the need of user group) and closing of the third switch K is for non-timing. That is, the third switch K will not be closed at a fixed time and will work all the time. So, the first trigger pin TR1 and the second trigger pin TR2 as well as the control pin CH are for all kinds of control of the output string lights and the specific control purposes are designed according to customer's needs.
  • the explanation provided above for illuminating the first LED L1 and the second LED L2 of FIG. 1 is also captured in an exemplary Table 1 provided below for ease of understanding.
  • the combination of states explained above and provided in Table 1 are exemplary and there can be more combination of states as per the logic design of high state and the low state. If intermittent frequency sweep of the IC 102 or an MCU (Microcontroller) program is used for controlling the illumination, the first LED L1 and the second LED L2 can be on simultaneously or various gradient effects may be achieved, and countless light changes can be realized by programming.
  • MCU Microcontroller
  • the three-way LED control circuit 200A is shown in accordance with a first exemplary embodiment of the invention.
  • the three-way LED control circuit 200A is a three-way positive and negative electrodeless output and comprises, but is not limited to, an integrated circuit (IC) 102, one or more lines W1-W3, a plurality of electrodeless LEDs L1-L6.
  • the integrated circuit 102 has a total of eight pins including a first I/O pin IO1, a second I/O pin 102, a third I/O pin 103, a first oscillator pin OSC1, a second oscillator pin OSC2, a voltage pin VDD, a trigger pin TR and a ground pin GND.
  • the first oscillator pin OSC1 and the second oscillator pin OSC2 are coupled to a crystal oscillator for providing a constant frequency output under varying load conditions.
  • the ground pin GND enables the current in the IC to flow to the ground.
  • the voltage pin VDD is coupled to a power supply that provides power to the circuit 200A.
  • the trigger pin TR controls timing of a control cycle of the integrated circuit 102 and is connected to the ground through a push switch S.
  • the first I/O pin IO1 is directly connected in series with a first line W1
  • the second I/O pin 102 is directly connected in series with a second line W2
  • the third I/O pin 103 is directly connected in series with a third line W3.
  • the circuit 200A provide an IC integrated output.
  • the plurality of LEDs L1-L6 shown in FIG. 2A comprises a first LED L1, a second LED L2, a third LED L3, a fourth LED L4, a fifth LED L5 and a sixth LED L6.
  • Each of the first LED L1, the second LED L2, the third LED L3, the fourth LED L4, the fifth LED L5 and the sixth LED L6 comprises a positive terminal and a negative terminal.
  • a positive terminal of the first LED L1 is coupled to the second line W2 and a negative terminal of the first LED L1 is coupled to the first line W1.
  • a positive terminal of the second LED L2 is coupled to the first line W1 and a negative terminal of the second LED L2 is coupled to the second line W2.
  • a positive terminal of the third LED L3 is coupled to the second line W2 and a negative terminal of the third LED L3 is coupled to the third line W3 and a positive terminal of the fourth LED L4 is coupled to the third line W3 and a negative terminal of the fourth LED L4 is coupled to the second line W2.
  • a positive terminal of the fifth LED L5 is coupled to the first line W1 and a negative terminal of the fifth LED L5 is coupled the third line W3.
  • a positive terminal of the sixth LED L6 is coupled to the third line W3 and a negative terminal of the sixth LED L6 is coupled to the first line W1.
  • the circuit 200A When the circuit 200A is turned on, the circuit 200A is configured to operate each of the first I/O pin IO1 and the second I/O pin 102 in one of a high state, a low state and a suspended state. Based on the state of the I/O pins, the circuit 200A is configured to operate the lines W1-W3 in one of a high level and a low level and accordingly, one or more LEDs is illuminated based on the level the lines W1-W3. The explanation for illuminating each LED will be explained below in greater details.
  • Table 2 State of IO1 pin State of IO2 pin State of IO3 pin LEDs illuminated High Low Low L2, L5 High Low High L2, L4 High High Low L3, L5 Low High High L1, L6 Low High Low L1, L3 Low Low High L4, L6 High Low Suspended L2 Suspended Low High L4 Low Suspended High L6 Low High Suspended L1 High Suspended Low L5 Suspended High Low L3
  • the three-way LED control circuit 200B is a three-way positive and negative electrodeless output and comprises, but is not limited to, an integrated circuit (IC) 102, one or more wires/lines W1-W3, a plurality of electrodeless LEDs L1-L6.
  • IC integrated circuit
  • the integrated circuit 102 has a total of ten pins including a first I/O pin IO1, a second I/O pin 102, a third I/O pin 103, a first oscillator pin OSC1, a second oscillator pin OSC2, a voltage pin VDD, a first trigger pin TR1, a second trigger pin TR2, a control pin CH and a ground pin GND.
  • the first trigger pin TR1 is connected to a first push switch S1 and the second trigger pin TR2 is connected to a second push switch S2.
  • the control pin CH is connected to a third switch K.
  • first trigger pin TR1 is connected to the ground through the first push switch S1
  • second trigger pin TR2 is connected to the ground through the second push switch S2
  • the control pin CH is connected to the ground through the third switch K.
  • the usage of these switches would control the timings of the integrated circuit 102 through the first timer pin TR1 and the second timer pin TR2.
  • the working of the first trigger pin TR1, the second trigger pin TR2, the control pin CH, the first push switch S1, the second push switch S2 and the third switch K is same as explained above with respect to FIG. IB. It is to be noted here that each of the plurality of LEDs L1-L6 of the circuit 200B are illuminated in the same manner as described above in FIG. 2A .
  • the four-way LED control circuit 300 is a four-way positive and negative electrodeless output and comprises, but is not limited to, an integrated circuit (IC) 102, one or more lines W1-W4, a plurality of electrodeless LEDs L1-L12.
  • the integrated circuit 102 has a total of nine pins including a first I/O pin IO1, a second I/O pin IO2, a third I/O pin IO3, a fourth I/O pin IO4, a first oscillator pin OSC1, a second oscillator pin OSC2, a voltage pin VDD, a trigger pin TR and a ground pin GND.
  • the first oscillator pin OSC1 and the second oscillator pin OSC2 are coupled to a crystal oscillator for providing a constant frequency output under varying load conditions.
  • the ground pin GND enables the current in the IC to flow to the ground.
  • the voltage pin VDD is coupled to a power supply that provides power to the circuit 300.
  • the trigger pin TR controls timing of a control cycle of the integrated circuit 102 and is connected to the ground through a push switch S.
  • the first I/O pin IO1 is directly connected in series with a first line W1
  • the second I/O pin IO2 is directly connected in series with a second line W2
  • the third I/O pin IO3 is directly connected in series with a third line W3
  • the fourth I/O pin 104 is directly connected in series with a fourth line W4.
  • the circuit 300 provide an IC integrated output.
  • each of these LEDs L1-L12 comprises a positive terminal and a negative terminal.
  • a positive terminal of the first LED L1 is coupled to the second line W2 and a negative terminal of the first LED L1 is coupled to the first line W1.
  • a positive terminal of the second LED L2 is coupled to the first line W1 and a negative terminal of the second LED L2 is coupled to the second line W2.
  • a positive terminal of the third LED L3 is coupled to the second line W2 and a negative terminal of the third LED L3 is coupled to the third line W3 and a positive terminal of the fourth LED L4 is coupled to the third line W3 and a negative terminal of the fourth LED L4 is coupled to the second line W2.
  • a positive terminal of the fifth LED L5 is coupled to the first line W1 and a negative terminal of the fifth LED L5 is coupled the third line W3.
  • a positive terminal of the sixth LED L6 is coupled to the third line W3 and a negative terminal of the sixth LED L6 is coupled to the first line W1.
  • a positive terminal of the seventh LED L7 is coupled to the fourth line W4 and a negative terminal of the seventh LED L7 is coupled to the first line W1.
  • a positive terminal of the eighth LED L8 is coupled to the first line W1 and a negative terminal of the eighth LED L8 is coupled to the fourth line W4.
  • a positive terminal of the ninth LED L9 is coupled to the fourth line W4 and a negative terminal of the ninth LED L9 is coupled to the third line W3 and a positive terminal of the tenth LED L10 is coupled to the third line W3 and a negative terminal of the tenth LED L10 is coupled to the fourth line W4.
  • a positive terminal of the eleventh LED L11 is coupled to the second line W2 and a negative terminal of the eleventh LED L11 is coupled the fourth line W4.
  • a positive terminal of the twelfth LED L12 is coupled to the fourth line W4 and a negative terminal of the twelfth LED L12 is coupled to the second line W2.
  • the circuit 300 When the circuit 300 is turned on, the circuit 300 is configured to operate each of the first I/O pin IO1, the second I/O pin IO2, the third I/O pin IO3 and the fourth I/O pin IO4 in one of a high state, a low state and a suspended state. Based on the state of the I/O pins, the circuit 300 is configured to operate the lines W1-W4 in one of a high level and a low level and accordingly, one or more LEDs L1-L12 is illuminated based on the level the lines W1-W4. The explanation for illuminating each LED will be explained below in greater details.
  • Table 3 State of IO1 pin State of IO2 pin State of IO3 pin State of IO4 pin LEDs illuminated High Low Low Low L2, L5, L8 High Low High Low L2, L4, L10, L8 High High Low Low Low L3, L11, L8, L5 Low High High Low L1, L11, L10, L6 Low High Low Low L1, L11, L3 Low Low High Low L4, L6, L10 Low Low Low High L9, L7, L12 Low Low High High L4, L6, L7, L12 Low High High High High L1, L6, L7 High High Low High L3, L5, L9 High Low High High L2, L4, L12 Low High Low High L1, L3, L7, L9 Low High Suspended Suspended L1 High Low Suspended Suspended L2 Suspended High Low Suspended L3 Suspended Low High Suspended Low High Suspended
  • the term "high level" used for any of the lines shown in any circuit refers to a level of current or voltage in a particular line that is enough to glow a particular LED.
  • the term "low level" used for any of the lines shown in any circuit refers to a level of current or voltage in a particular line that is less than the voltage or current when a particular line is in the "high level”.
  • the term "high state" for any of the I/O pins shown in any circuit refers to a state when there is maximum current or voltage output in an I/O pin. In the high state, the I/O pin is enabled. In an exemplary embodiment, the level of current is up to 5000 mA and/or voltage is up to 260 volts when a particular I/O pin operates in the high state.
  • the term "low state" used for any of the I/O pins shown in any circuit refers to a state when there is very low or minimal current or voltage output in an I/O pin. In the low state, the I/O pin is enabled. In an exemplary embodiment, the level of current is up to 3mA and/or voltage is up to 3 volts when a particular I/O pin operates in the low state.
  • the term "suspended state" used for any of the I/O pins shown in any circuit refers to a state when there is no current or voltage output in an I/O pin. In the suspended state, the I/O is disabled.
  • Example 1 If the input voltage is 4.5V and the output load (i.e. LEDs) needs 200MA, then a current-limiting resistor may be connected in series at the output end. In this way, the required current can be adjusted according to the load requirements. If the output load does not need too large current and only needs 10MA, the current-limiting resistance value can be larger. And if the output load needs 1000MA (i.e. 1A), it will be fine if the current limiting resistance value is smaller than the value.
  • Example 2 If the input voltage is 6V and the output load needs 200MA, just connect a current-limiting resistor in series at the output end.
  • Example 3 If the input voltage is 3V and the output load needs 200MA, just connect a current-limiting resistor in series at the output end. In this way, the required current can be adjusted according to the load requirements. If the output load does not need too large a current and only needs 10MA, then the current limiting resistance can be larger; And if the output load needs 1000MA (i.e. 1A), it will be fine if the current limiting resistance value is smaller than the value.
  • Table 1 shows a limited combinations of various states of I/O pins to glow/illuminate a particular electrodeless LED; however, other possible combinations of various states can be achieved if the frequency is controlled by a microcontroller (MCU) or the IC to illuminate an LED in any of the two-way control circuit 100A/100B, the three-way control circuit 200A/200B and the four-way control circuit 300 by changing state of I/O pins which is also within the scope of the present invention. Further, the I/O pins shown in each of the two-way control circuit 100A/100B, the three-way control circuit 200A/200B and the four-way control circuit 300 can output current of 0-1A to their respective LEDs.
  • MCU microcontroller
  • a method 400 for illuminating at least one of a first electrodeless LED L1 and a second electrodeless LED L2 of circuit 100A/100B in accordance with an exemplary embodiment of the invention starts at step 402.
  • a first I/O pin IO1 and a second I/O pin IO2 of an integrated circuit 102 are operated.
  • each of the I/O pins IO1-IO2 are operated in one of a high state and a low state.
  • the first I/O pin IO1 operates in a low state and the second I/O pin IO2 operates in a high state.
  • the first I/O pin IO1 operates in a high state and the second I/O pin IO2 operates in a low state as explained in Table 1 above.
  • the circuit 100A/100B operates at least one of a first line W1 and a second line W2 in one of a low level and a high level.
  • the first line W1 is directly connected in series with the first I/O pin IO1 and the second line W2 is directly connected in series with the second I/O pin IO2.
  • the first line W1 is in a low level in an event the first I/O pin IO1 operates in the low state and the second line is in a high level in an event the second I/O pin IO2 operates in a high state.
  • the first line W1 is in a high level in an event the first I/O pin IO1 operates in a high state and the second line is in a low level in an event the second I/O pin IO2 operates in a low state as explained in FIG. 1A above.
  • the circuit 100A/100B illuminates the at least one of the first LED L1 and the second LED L2 coupled between the first line W1 and the second line W2 based on the high level or the low level of the first line W1 and the second line W2. Illumination of each of the first LED L1 and the second LED L2 is explained above in the description of FIG. 1A .
  • the first LED L1 is illuminated in an event the first line W1 is in the low level and the second line W2 is in the high level and the first I/O pin IO1 operates in the low state and the second I/O pin IO2 operates in the high state.
  • the second LED L2 is illuminated in an event the first line W1 is in the high level and the second line W2 is in the low level and the first I/O pin IO1 operates in the high state and the second I/O pin IO2 operates in the low state.
  • the method 400 ends.
  • a method 500 for illuminating at least one of a plurality of electrodeless LEDs L1- L6 circuit 200A/200B in accordance with an exemplary embodiment of the invention starts at step 502.
  • a first I/O pin IO1, a second I/O pin IO2 and a third I/O pin IO3 of an integrated circuit 102 are operated.
  • each of the I/O pins IO1-IO3 are operated in one of a high state, a low state and a suspended state.
  • the first I/O pin IO1 operates in the low state
  • the second I/O pin IO2 operates in the high state
  • the third I/O pin IO3 operates in the high state.
  • the first I/O pin IO1 operates in the low state
  • the second I/O pin IO2 operates in the high state
  • the third I/O pin IO3 operates in the suspended state.
  • the circuit 200A/200B operates at least one of a first line W1, a second line W2 and a third line W3 in one of a low level and a high level.
  • first line W1 is directly connected in series with the first I/O pin IO1
  • second line W2 is directly connected in series with the second I/O pin IO2
  • third line W3 is directly connected in series with the third I/O pin IO3.
  • first I/O pin IO1 operating in the low state enables the first line W1 to operate in low level
  • second I/O pin IO2 operating in the high state enables the second line W2 to operate in high level
  • the third I/O pin IO3 operating in the high state enables the third line W3 to operate in high level.
  • the circuit 200A/200B illuminates the at least one of the plurality of LEDs L1-L6 coupled between at least two of the first line W1, the second line W2 and the third line W3. Also, the at least one of the plurality of LEDs L1-L6 is illuminated based on a level of the at least two of the first line W1, the second line W2 and the third line W3. Illumination of each of the plurality of LEDs L1-L6 is explained above in the description of FIG. 2A .
  • the first LED L1 is illuminated in an event the first I/O pin IO1 operates in the low state, the second I/O pin IO2 operates in the high state, and the third I/O pin IO3 operates in the high state.
  • the fifth LED L5 is illuminated in an event the first I/O pin IO1 operates in the high state, the second I/O pin IO2 operates in the suspended state, and the third I/O pin IO3 operates in the low state.
  • the method 500 ends.
  • a method 600 for illuminating at least one of a plurality of electrodeless LEDs L1- L12 of a circuit 300 in accordance with another exemplary embodiment of the invention starts at step 602.
  • a first I/O pin IO1, a second I/O pin IO2, a third I/O pin IO3 and a fourth I/O pin IO4 of an integrated circuit 102 are operated in one of low state, a high state and a suspended state.
  • the first I/O pin IO1 operates in the high state
  • the second I/O pin IO2 operates in the low state
  • the third I/O pin IO3 operates in the high state
  • the fourth I/O pin IO4 operates in the high state.
  • the first I/O pin IO1 operates in the high state
  • the second I/O pin IO2 operates in the low state
  • the third I/O pin IO3 operates in the suspended state
  • the fourth I/O pin IO4 operates in the suspended state.
  • the circuit 300 operates at least one of a first line W1, a second line W2, a third line W3 and a fourth line W4 in one of a high level and a low level.
  • the first I/O pin IO1 operating in the high state enables the first line W1 to operate in the high level
  • the second I/O pin IO2 operating in the low state enables the second line W2 to operate in the low level
  • the third I/O pin IO3 operating in the high state enables the third line W3 to operate in the high level
  • the fourth I/O pin 104 operating in the high state enables the fourth line W4 to operate in the high level.
  • the first line W1 is directly connected in series with the first I/O pin IO1
  • the second line W2 is directly connected in series with the second I/O pin 102
  • the third line W3 is directly connected in series with the third I/O pin 103
  • the fourth line W4 is directly connected in series with the fourth I/O pin 104 as shown in Figure 3 .
  • the circuit 300 illuminates the at least one of the plurality of LEDs L1-L12 coupled between at least two of the first line W1, the second line W2, the third line W3 and the fourth line W4.
  • the at least one of the plurality of LEDs L1-L12 is illuminated based on the high level or the low level of the at least two of the first line W1, the second line W2, the third line W3 and the fourth line W4. Illumination of each of the plurality of LEDs L1-L12 in various possible ways is explained above in the description of FIG. 3 .
  • the second LED L2 is illuminated in an event the first I/O pin IO1 operates in the high state, the second I/O pin IO2 operates in the low state, the third I/O pin IO3 operates in the high state, and the fourth I/O pin IO4 operates in the high state.
  • the second LED L2 is illuminated in an event the first I/O pin IO1 operates in the high state, the second I/O pin IO2 operates in the low state, the third I/O pin IO3 operates in the suspended state, and the fourth I/O pin IO4 operates in the suspended state.
  • the method 600 ends.
  • the present invention mentions two electrodeless LEDs in the two-way control circuit 100A/100B, six electrodeless LEDs in the three-way control circuit 200A/200B and twelve electrodeless LEDs in the four-way control circuit 300.
  • Each of the electrodeless LEDs L1-L2 in the two-way control circuit 100A/100B, each of six electrodeless LEDs L1-L6 in the three-way control circuit 200A/200B and each of the twelve electrodeless LEDs L1-L12 in the four-way control circuit 300 can be a single electrodeless LED (i.e. 1 in number) or is included in a group of electrodeless LEDs, wherein a plurality of the groups of LEDs are provided in the LED control circuit 100A/100B/200A/200B/300.
  • the scaling up or down of the number of LEDs depends on the requirements and is within the scope of the present invention.
  • each of the electrodeless LEDs L1-L2 in the two-way control circuit 100A/100B, each of six electrodeless LEDs L1-L6 in the three-way control circuit 200A/200B and each of the twelve electrodeless LEDs L1-L12 in the four-way control circuit 300 can glow one at a time or one after another.
  • each of two electrodeless LEDs L1-L2 in the two-way control circuit 100A/100B, each of six electrodeless LEDs L1-L6 in the three-way control circuit 200A/200B and each of the twelve electrodeless LEDs L1-L12 in the four-way control circuit 300 may glow simultaneously at the same time.
  • the present invention has industry applicability in the field of electronic equipment, where an LED can be used as a control light such as in a remote control of the electronic equipment. Additionally, the present invention is applicable in firework lights, meteor lights, marquee lights, billboards, fairy and decorative LED lights, battery box light string, a control machine of solar light, a control machine of solar light series, a control machine of universal serial bus (USB) and several of transformer AC to DC external control.
  • USB universal serial bus
  • the present invention provides several technical advantages over the prior systems or circuits which are as follows: a) Effective and efficient control of multiple LEDs by using two-way to multi-way control circuits, b) Ensures a high degree of safety and effectiveness in the control and power supply of various electrical end circuits, c) Functions inexpensively and without great effort, d) Reliably control a large number and complex power systems regardless of the level of the external load needed, e) Guarantees stable and variable output power, f) Easy control of positive and negative electrodeless outputs, g) Eliminates the need of peripheral component chip thereby reducing the cost and h) Provides output circuit more than 0-1A reducing the cost of both labor and material. Further statements of invention:

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP20188490.5A 2020-07-30 2020-07-30 Zweiweg-mehrweg-leuchtdiodensteuerschaltungen und verfahren zur steuerung von leuchtdioden Withdrawn EP3945752A1 (de)

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EP20188490.5A EP3945752A1 (de) 2020-07-30 2020-07-30 Zweiweg-mehrweg-leuchtdiodensteuerschaltungen und verfahren zur steuerung von leuchtdioden

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EP20188490.5A EP3945752A1 (de) 2020-07-30 2020-07-30 Zweiweg-mehrweg-leuchtdiodensteuerschaltungen und verfahren zur steuerung von leuchtdioden

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022122221A1 (de) 2022-07-12 2024-01-18 Changzhou Jutai Electronic Co., Ltd. Steuerverfahren einer Lampe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020001098U1 (de) * 2020-03-10 2020-04-17 Shenzhen Yifengyuan technology Company Ltd. Integrierter Schaltkreis zur Chip-Steuerung
US10631386B1 (en) * 2019-09-30 2020-04-21 National Christmas Products Llc Multi-color flat rope light string system
US10728994B1 (en) * 2019-11-22 2020-07-28 Jetmax Lighting Industrial Co., Limited Multi-mode series light controlling system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10631386B1 (en) * 2019-09-30 2020-04-21 National Christmas Products Llc Multi-color flat rope light string system
US10728994B1 (en) * 2019-11-22 2020-07-28 Jetmax Lighting Industrial Co., Limited Multi-mode series light controlling system
DE202020001098U1 (de) * 2020-03-10 2020-04-17 Shenzhen Yifengyuan technology Company Ltd. Integrierter Schaltkreis zur Chip-Steuerung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022122221A1 (de) 2022-07-12 2024-01-18 Changzhou Jutai Electronic Co., Ltd. Steuerverfahren einer Lampe

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