EP3045799A1 - Led strip and led strip controller - Google Patents

Led strip and led strip controller Download PDF

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Publication number
EP3045799A1
EP3045799A1 EP13893124.1A EP13893124A EP3045799A1 EP 3045799 A1 EP3045799 A1 EP 3045799A1 EP 13893124 A EP13893124 A EP 13893124A EP 3045799 A1 EP3045799 A1 EP 3045799A1
Authority
EP
European Patent Office
Prior art keywords
led strip
led
parallel circuit
unit
led lamps
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.)
Withdrawn
Application number
EP13893124.1A
Other languages
German (de)
French (fr)
Inventor
Lifa HONG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taizhou Hongji Lighting Co Ltd
Original Assignee
Taizhou Hongji Lighting Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taizhou Hongji Lighting Co Ltd filed Critical Taizhou Hongji Lighting Co Ltd
Publication of EP3045799A1 publication Critical patent/EP3045799A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/39—Circuits containing inverter bridges
    • 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 relates to an LED lamp, and in particular, to an LED strip and an LED strip controller.
  • a wire connection manner of three-wire-two-path is used in a LED strip in the prior art.
  • This wire connection manner has defects that many wires are used, the structure is complex, costs are high, and the service life is short. Therefore, a technical person always hopes that combination of different light-emitting states of lamps can also implemented in a two-wire-two-path way, so as to achieve a color changing function.
  • the present invention provides an LED strip, where the LED strip includes a plurality of LED lamps and two power lines; parallel circuit units that are formed by the plurality of LED lamps and resistors are connected in parallel on the two power lines; and LED lamps of a same parallel circuit unit group are in a same direction, but LED lamps of various parallel circuit unit groups are in a reverse direction, and LED lamps in the reverse direction of a same parallel circuit unit may be combined in an interleaving way as required;
  • the LED lamps in the parallel circuit unit have different lighting colors.
  • the LED strip is at least provided with one parallel circuit unit.
  • a voltage value application range of the LED strip is 1.5 V to 36 V.
  • the present invention also provides an LED strip controller, where the LED strip controller includes a control signal generation unit and a drive unit, the control signal generation unit and the drive unit are supplied by a power supply circuit, the control signal generation unit provides drive signals to at least one group of drive units alternatively or simultaneously, and an output end of the drive unit drives the LED strip.
  • the drive unit includes a bridge control circuit that is formed by two NPN triodes and two PNPs;
  • a resistor is connected in series between the output end of the drive unit and the LED strip.
  • a two-wire-two-path LED strip is used, one wire is saved compared with a three-wire-two-path lamp strip in the prior art; moreover, a parallel circuit that includes two groups of LEDs that are in a reverse direction and resistors is used in the parallel circuit, and therefore, the structure is simple. Because an LED has a long service life, the service life of the whole lamp strip is improved, and power consumption is reduced. Meanwhile, the LED has various colors, and LEDs of different colors may be selected according to needs, thereby being more beautiful.
  • an LED strip of the present invention includes a plurality of LED lamps 1 and two power lines L1 and L2.
  • Parallel circuit units 2 that are formed by the plurality of LED lamps 1 and resistors are connected in parallel on the two power lines L1 and L2.
  • LED lamps 1 of a same parallel circuit unit 2 group are in a same direction, but LED lamps 1 of various parallel circuit unit 2 groups are in a reverse direction, and LED lamps 1 in the reverse direction of a same parallel circuit unit 2 may be combined in an interleaving way as required.
  • the LED lamps 1 in the parallel circuit unit 2 have different lighting colors, specifically being red, green, yellow, blue, white, and so on.
  • the LED strip is at least provided with one parallel circuit unit 2.
  • a voltage value application range of the LED strip is 1.5 V to 36 V.
  • a process of manufacturing the lamp strip of the present invention is that: a plurality of LEDs 1 is connected in parallel first as one parallel circuit unit 2, and when the LED lamps 1 are connected in parallel, two adjacent lamps are connected in parallel in opposite directions: one is positive and one is negative; then n groups of parallel circuit units 2 are connected in series to 24 V or a designed rated voltage, and are unilaterally conducted according to the LED lamps 1.
  • the two power lines are L1 and L2.
  • LED lamps 1 connected in a forward direction to the L1 are lighted
  • the L1 is a negative pole
  • LED lamps 1 connected in a reverse direction to the L1 are lighted.
  • the L1 and the L2 change positive and negative poles rapidly and alternatively, and the changing frequency is greater than the resolution frequency of a human eye.
  • an LED strip controller of the present invention includes a control signal generation unit 9 and a drive unit.
  • the drive unit is a bridge control circuit that is formed by two NPN triodes and two PNPs.
  • the control signal generation unit 9 and the drive unit are supplied by a power supply circuit, the control signal generation unit 9 provides drive signals to at least one group of drive units alternatively or simultaneously, and the drive unit drives the LED strip.
  • the drive unit drives a corresponding LED strip group to give out light; when the control signal generation unit outputs another group of control signals, the drive unit drives another corresponding LED strip group to give out light; when a variable resistor is adjusted to enable the control signal generation unit to output simultaneously two groups of control signals, the drive units work simultaneously during a certain period, and two LED strip groups give out light simultaneously during a certain period.
  • resistors may be connected.
  • a resistor may be connected in series between an output end of the drive unit and the LED strip.
  • the control assembly when in use, the LED strip is connected to a control assembly.
  • the control assembly includes a housing. A power input interface is disposed on the housing.
  • a control circuit 10 is disposed inside the housing.
  • the control circuit 10 includes a timer 13 and an electronic transformer 11. An input end of the control circuit 10 is connected to the power input interface.
  • the control circuit 10 has an output end. The input end of the control circuit 10 is disposed on the electronic transformer 11. The output end of the control circuit 10 is disposed on the timer 13.
  • it is only needed to connect the power input interface to an electric supply, and connect an LED strip 12 to the output end of the control circuit 10, and no complex assembly process is needed.
  • the output end of the control circuit 10 may be designed to a plug mode of Plug-and-Play. Costs of the electronic transformer of the present invention are low, and energy consumption of the electronic transformer is 50% lower than that of an iron core transformer. Therefore, manufacturing costs of the whole product is low.
  • the present invention because a two-wire-two-path LED strip is used, one wire is saved compared with a three-wire-two-path lamp strip in the prior art; moreover, a parallel circuit that includes two groups of LEDs that are in a reverse direction and resistors is used in the parallel circuit, and therefore, the structure is simple. Because an LED has a long service life, the service life of the whole lamp strip is improved, and power consumption is reduced. Meanwhile, the LED has various colors, and LEDs of different colors may be selected according to needs, thereby being more beautiful.

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The present invention discloses an LED strip. The LED strip includes a plurality of LED lamps and two power lines. Parallel circuit units that are formed by the plurality of LED lamps and resistors are connected in parallel on the two power lines. LED lamps of a same parallel circuit unit group are in a same direction, but LED lamps of various parallel circuit unit groups are in a reverse direction, and LED lamps in the reverse direction of a same parallel circuit unit may be combined in an interleaving way as required. The LED strip controller includes a control signal generation unit and a drive unit. The control signal generation unit and the drive unit are supplied by a power supply circuit. The control signal generation unit provides drive signals to at least one group of drive units alternatively or simultaneously. The drive unit drives the LED strip. In the present invention, a combination of different light-emitting states of the LED lamps is implemented in a two-wire-two-path way.

Description

    Technical Field
  • The present invention relates to an LED lamp, and in particular, to an LED strip and an LED strip controller.
    • Related Art
  • A wire connection manner of three-wire-two-path is used in a LED strip in the prior art. This wire connection manner has defects that many wires are used, the structure is complex, costs are high, and the service life is short. Therefore, a technical person always hopes that combination of different light-emitting states of lamps can also implemented in a two-wire-two-path way, so as to achieve a color changing function.
    • SUMMARY
  • Technical problems that the present invention needs to solve are to provide an LED strip and an LED strip controller, to overcome defects in the prior art that a lamp strip connection manner uses many wires, has a complex structure and high costs.
  • To achieve the foregoing objective, the present invention provides an LED strip, where the LED strip includes a plurality of LED lamps and two power lines; parallel circuit units that are formed by the plurality of LED lamps and resistors are connected in parallel on the two power lines; and LED lamps of a same parallel circuit unit group are in a same direction, but LED lamps of various parallel circuit unit groups are in a reverse direction, and LED lamps in the reverse direction of a same parallel circuit unit may be combined in an interleaving way as required;
  • The LED lamps in the parallel circuit unit have different lighting colors.
  • The LED strip is at least provided with one parallel circuit unit.
  • A voltage value application range of the LED strip is 1.5 V to 36 V.
  • The present invention also provides an LED strip controller, where the LED strip controller includes a control signal generation unit and a drive unit, the control signal generation unit and the drive unit are supplied by a power supply circuit, the control signal generation unit provides drive signals to at least one group of drive units alternatively or simultaneously, and an output end of the drive unit drives the LED strip.
  • The drive unit includes a bridge control circuit that is formed by two NPN triodes and two PNPs; and
  • A resistor is connected in series between the output end of the drive unit and the LED strip.
  • Compared with the prior art, for the beneficial effects of the present invention, because a two-wire-two-path LED strip is used, one wire is saved compared with a three-wire-two-path lamp strip in the prior art; moreover, a parallel circuit that includes two groups of LEDs that are in a reverse direction and resistors is used in the parallel circuit, and therefore, the structure is simple. Because an LED has a long service life, the service life of the whole lamp strip is improved, and power consumption is reduced. Meanwhile, the LED has various colors, and LEDs of different colors may be selected according to needs, thereby being more beautiful.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG. 1 is a schematic diagram of a circuit principle of an LED strip according to the present invention;
    • FIG. 2 is a schematic diagram of a circuit principle of an LED strip controller according to the present invention;
    • FIG. 3 is a schematic diagram of a circuit principle of an LED strip controller assembly according to the present invention; and
    • FIG. 4 is a schematic principle diagram of an LED strip controller assembly according to the present invention.
    DETAILED DESCRIPTION
  • Specific implementation manners of the present invention are described further in detail with reference to the accompanying drawings and embodiments. The following embodiments are used to describe the present invention, but are not intended to limit the scope of the present invention.
  • As shown in FIG. 1, an LED strip of the present invention includes a plurality of LED lamps 1 and two power lines L1 and L2. Parallel circuit units 2 that are formed by the plurality of LED lamps 1 and resistors are connected in parallel on the two power lines L1 and L2. LED lamps 1 of a same parallel circuit unit 2 group are in a same direction, but LED lamps 1 of various parallel circuit unit 2 groups are in a reverse direction, and LED lamps 1 in the reverse direction of a same parallel circuit unit 2 may be combined in an interleaving way as required.
  • The LED lamps 1 in the parallel circuit unit 2 have different lighting colors, specifically being red, green, yellow, blue, white, and so on.
  • The LED strip is at least provided with one parallel circuit unit 2.
  • A voltage value application range of the LED strip is 1.5 V to 36 V.
  • A process of manufacturing the lamp strip of the present invention is that: a plurality of LEDs 1 is connected in parallel first as one parallel circuit unit 2, and when the LED lamps 1 are connected in parallel, two adjacent lamps are connected in parallel in opposite directions: one is positive and one is negative; then n groups of parallel circuit units 2 are connected in series to 24 V or a designed rated voltage, and are unilaterally conducted according to the LED lamps 1. The two power lines are L1 and L2. When the L1 is a positive pole, LED lamps 1 connected in a forward direction to the L1 are lighted, and when the L1 is a negative pole, LED lamps 1 connected in a reverse direction to the L1 are lighted. When the LED lamps 1 are all lighted, the L1 and the L2 change positive and negative poles rapidly and alternatively, and the changing frequency is greater than the resolution frequency of a human eye.
  • As shown in FIG. 2, an LED strip controller of the present invention includes a control signal generation unit 9 and a drive unit. The drive unit is a bridge control circuit that is formed by two NPN triodes and two PNPs. The control signal generation unit 9 and the drive unit are supplied by a power supply circuit, the control signal generation unit 9 provides drive signals to at least one group of drive units alternatively or simultaneously, and the drive unit drives the LED strip. When the control signal generation unit outputs a group of control signals, the drive unit drives a corresponding LED strip group to give out light; when the control signal generation unit outputs another group of control signals, the drive unit drives another corresponding LED strip group to give out light; when a variable resistor is adjusted to enable the control signal generation unit to output simultaneously two groups of control signals, the drive units work simultaneously during a certain period, and two LED strip groups give out light simultaneously during a certain period.
  • To enable two lamp strip groups to work at a parallel voltage, resistors may be connected. Alternatively, a resistor may be connected in series between an output end of the drive unit and the LED strip.
  • As shown in FIG. 3 and FIG. 4, when in use, the LED strip is connected to a control assembly. The control assembly includes a housing. A power input interface is disposed on the housing. A control circuit 10 is disposed inside the housing. The control circuit 10 includes a timer 13 and an electronic transformer 11. An input end of the control circuit 10 is connected to the power input interface. The control circuit 10 has an output end. The input end of the control circuit 10 is disposed on the electronic transformer 11. The output end of the control circuit 10 is disposed on the timer 13. When in use, it is only needed to connect the power input interface to an electric supply, and connect an LED strip 12 to the output end of the control circuit 10, and no complex assembly process is needed. The output end of the control circuit 10 may be designed to a plug mode of Plug-and-Play. Costs of the electronic transformer of the present invention are low, and energy consumption of the electronic transformer is 50% lower than that of an iron core transformer. Therefore, manufacturing costs of the whole product is low.
  • In the present invention, because a two-wire-two-path LED strip is used, one wire is saved compared with a three-wire-two-path lamp strip in the prior art; moreover, a parallel circuit that includes two groups of LEDs that are in a reverse direction and resistors is used in the parallel circuit, and therefore, the structure is simple. Because an LED has a long service life, the service life of the whole lamp strip is improved, and power consumption is reduced. Meanwhile, the LED has various colors, and LEDs of different colors may be selected according to needs, thereby being more beautiful.
  • The foregoing descriptions are merely preferred implementation manners of the present invention. It should be noted that a person of ordinary skill in the art may further make improvements and modifications without departing from the technical principle of the present invention, and the improvements and modifications should all fall within the protection scope of the present invention.

Claims (7)

  1. An LED strip, wherein: the LED strip comprises a plurality of LED lamps, and two power lines; parallel circuit units that are formed by the plurality of LED lamps and resistors are connected in parallel on the two power lines; and LED lamps of a same parallel circuit unit group are in a same direction, but LED lamps of various parallel circuit unit groups are in a reverse direction, and LED lamps in the reverse direction of a same parallel circuit unit may be combined in an interleaving way as required;
  2. The LED strip according to claim 1, wherein the LED lamps in the parallel circuit unit have different lighting colors.
  3. The LED strip according to claim 2, wherein: the LED strip is at least provided with one parallel circuit unit.
  4. The LED strip according to any one of claims 1 to 3, wherein: a voltage value application range of the LED strip is 1.5 V to 36 V.
  5. An LED strip controller, wherein: the LED strip controller comprises a control signal generation unit and a drive unit, the control signal generation unit and the drive unit are supplied by a power supply circuit, the control signal generation unit provides drive signals to at least one group of drive units alternatively or simultaneously, and an output end of the drive unit drives the LED strip.
  6. The LED strip controller according to claim 5, wherein: the drive unit comprises a bridge control circuit that is formed by two NPN triodes and two PNPs.
  7. The LED strip controller according to claim 5, wherein: a resistor is connected in series between the output end of the drive unit and the LED strip.
EP13893124.1A 2013-09-09 2013-09-16 Led strip and led strip controller Withdrawn EP3045799A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320557113.2U CN203477988U (en) 2013-09-09 2013-09-09 LED lamp string and LED lamp string controller
PCT/CN2013/083539 WO2015032108A1 (en) 2013-09-09 2013-09-16 Led strip and led strip controller

Publications (1)

Publication Number Publication Date
EP3045799A1 true EP3045799A1 (en) 2016-07-20

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ID=49754533

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EP13893124.1A Withdrawn EP3045799A1 (en) 2013-09-09 2013-09-16 Led strip and led strip controller

Country Status (4)

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EP (1) EP3045799A1 (en)
CN (1) CN203477988U (en)
DE (1) DE202013104775U1 (en)
WO (1) WO2015032108A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113543407A (en) * 2021-07-22 2021-10-22 宁波市芯能微电子科技有限公司 Light emitting diode driving system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105682296A (en) * 2016-03-21 2016-06-15 江门市蓬江区广达电器有限公司 Forward-reverse connection type LED lamp string
TWI705217B (en) * 2020-03-30 2020-09-21 安沛科技股份有限公司 Control circuit and control method of multi-group light-emitting diode string
CN112560144B (en) * 2020-12-15 2023-06-13 杭州群核信息技术有限公司 Method and system for generating suspended ceiling lamp strip
CN112702812B (en) * 2021-01-16 2023-04-07 正阳县合兴灯饰有限公司 LED driving method and driving circuit

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Publication number Priority date Publication date Assignee Title
CN2495898Y (en) * 2001-07-03 2002-06-19 浙江天台天宇灯饰有限公司 Two lines and two circuits LED lamp string (band)
CN2492035Y (en) * 2001-07-03 2002-05-15 浙江天台天宇灯饰有限公司 Double-line, two route controller
CN2806966Y (en) * 2004-12-21 2006-08-16 浙江天宇灯饰有限公司 Two-line two-circuit lamp string with single double-color LED bulb
CN100472118C (en) * 2005-01-14 2009-03-25 张东方 Decorative LED lamp string
CN201044520Y (en) * 2006-12-12 2008-04-02 王欣 Double-line, two-route lamp string controller
CN201054835Y (en) * 2007-05-16 2008-04-30 容振光 LED lamp serial control circuit

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See references of WO2015032108A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113543407A (en) * 2021-07-22 2021-10-22 宁波市芯能微电子科技有限公司 Light emitting diode driving system
CN113543407B (en) * 2021-07-22 2023-11-24 宁波市芯能微电子科技有限公司 Light emitting diode driving system

Also Published As

Publication number Publication date
CN203477988U (en) 2014-03-12
DE202013104775U1 (en) 2013-11-07
WO2015032108A1 (en) 2015-03-12

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