CN105828489B - A kind of LED light modulating devices based on H-bridge circuit - Google Patents

A kind of LED light modulating devices based on H-bridge circuit Download PDF

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Publication number
CN105828489B
CN105828489B CN201610376843.0A CN201610376843A CN105828489B CN 105828489 B CN105828489 B CN 105828489B CN 201610376843 A CN201610376843 A CN 201610376843A CN 105828489 B CN105828489 B CN 105828489B
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Prior art keywords
module
switch element
led
bridge circuit
switch unit
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CN201610376843.0A
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CN105828489A (en
Inventor
程朋朋
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Guangdong Qingzhou Photoelectric Technology Co ltd
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DONGGUAN LETARON PHOTOELECTRIC TECHNOLOGY Co Ltd
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Priority to CN201610376843.0A priority Critical patent/CN105828489B/en
Publication of CN105828489A publication Critical patent/CN105828489A/en
Priority to DE102016121231.8A priority patent/DE102016121231B4/en
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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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • 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]
    • H05B45/20—Controlling the colour of the light
    • 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]
    • 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]
    • H05B45/10—Controlling the intensity of the light
    • 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
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • 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]
    • H05B45/30—Driver circuits
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The invention discloses a kind of LED light modulating devices based on H-bridge circuit, including dim signal module, LED/light source module, power supply module and H-bridge circuit, wherein, the LED/light source module is used as the load in H-bridge circuit on public bridge arm；It is powered by way of high frequency positive negative pulse stuffing to LED/light source module, by controlling the pulsewidth of high frequency module to reach the effect of two line traffic controls light modulation toning, so that existing product is easily carried out transformation, is effectively reduced transformation difficulty and saves improvement cost.

Description

A kind of LED light modulating devices based on H-bridge circuit
Technical field
The present invention relates to field of LED drive technology, particularly a kind of LED light modulating devices based on H-bridge circuit.
Background technology
By two switching tubes connection in four switching tubes, the connection of two other switching tube is simultaneously connected by a common line It is logical, because such connection is drawn often as H printed words plus the load on common line, therefore gain the name H bridges, four Individual switching tube is commonly referred to as bridge arm, and middle common line is commonly referred to as public bridge arm.H-bridge circuit can be in same circuit In, the bridge arm on both sides is always to maintain opposite output, can so turn in the case of single supply the polarity of load around, To meet the demand in terms of motor driving.
LED lamps are as a kind of new light sources of high benefit, due to having the advantages that long lifespan, energy consumption be low, energy-conserving and environment-protective, just It is widely used in the various occasions such as market, urban road, advertising lamp box, automotive lighting, with the extensive use of LED lamps, people Requirement to LED lamps also more and more higher, forms regulation and a variety of adjustment modes from single brightness regulation to colour temperature and mutually ties The a variety of demands closed.In order to not influence LED color temperature shift, most of LED lamps of degree of lightening and color-temperature regulating use PWM (PulseWidth Modulation, pulse width modulation) mode.
The LED product of the product light modulation brightness color-temperature regulating listed at present is a lot, use cool white LED and warm white LED more It is separately controlled or common cathode and common anode, the company of 3 or the above is like this required between LED controller and lamp plate module Wiring, in current similar Linear light and walks the structure of bar lamp, and only two electrical cables have no idea color-temperature regulating, it is necessary to increase Plus an electrical cable, like this original product mold will again do and increase the installation difficulty of user.
The content of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art there is provided a kind of based on H-bridge circuit LED light modulating devices.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of LED light modulations based on H-bridge circuit Device, including dim signal module, LED light sources module, power supply module, first switch unit Q1, second switch unit Q2, Three switch element Q3 and the 4th switch element Q4, the first switch unit Q1, second switch unit Q2, the 3rd switch element Q3 H-bridge circuit is constituted with the 4th switch element Q4, wherein, the LED/light source module is as negative on public bridge arm in H-bridge circuit Carry；
The dim signal module includes low colour temperature carrier-frequency circuit, high color temperature carrier-frequency circuit and wireless module, wireless module It is electrically connected with respectively with the low colour temperature carrier-frequency circuit, high color temperature carrier-frequency circuit, the low colour temperature carrier-frequency circuit, high color temperature carrier frequency Circuit is electrically connected with the H-bridge circuit respectively；
The LED/light source module is composed in parallel by low colour temperature LED and high color temperature LED, and adjacent LED in parallel Opposite direction connection.
In above-mentioned technical proposal, low the colour temperature carrier-frequency circuit and high color temperature carrier-frequency circuit are all respectively adopted digital simulation and turned The data signal that parallel operation is sent to wireless module is received, and exports the PWM progress of corresponding frequency to the LED/light source mould The control of group, realizes the regulation to colour temperature and brightness respectively.
In above-mentioned technical proposal, the wireless module is bluetooth module, by receiving Bluetooth signal and being converted to digital letter Number it is sent to the digital analog converter.
In above-mentioned technical proposal, the first switch unit Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th Switch element Q4 is transistor MOSFET.
In above-mentioned technical proposal, voltage-regulator diode is parallel between the drain electrode of the transistor MOSFET and source electrode.
In above-mentioned technical proposal, the low colour temperature carrier-frequency circuit respectively with second switch unit Q2 and the 4th switch element Q4 Grid connection, grid of the high color temperature carrier-frequency circuit respectively with first switch unit Q1 and the 3rd switch element Q3 be connected； One end of the LED light sources module is connected between first switch unit Q1 and the 3rd switch element Q3, the LED light source dies The other end of group is connected between second switch unit Q2 and the 4th switch element Q4；The positive pole of the power supply module is connected to One switch element Q1 and second switch unit Q2 drain electrode, and negative pole is connected to the 3rd switch element Q3 and the 4th switch element Q4 Source electrode.
In above-mentioned technical proposal, the node between the second switch unit Q2 and the 4th switch element Q4 is carried with low colour temperature Frequency circuit is electrically connected with by electric capacity C5, and electric capacity C5 and diode D2 is electrically connected with and carries out Bootstrap by it； Node between the first switch unit Q1 and the 3rd switch element Q3 is electrically connected with high color temperature carrier-frequency circuit by electric capacity C2 Connect, and electric capacity C2 and diode D1 is electrically connected with and carries out Bootstrap by it, and diode D1 and diode D2 are just Pole is electrically connected with the power supply module.
In above-mentioned technical proposal, the power supply module is electrically connected with by voltage-stablizer and the wireless module.
In above-mentioned technical proposal, the power supply module is electrically connected with polar capacitor C1 and Schottky diode D3.
The beneficial effects of the invention are as follows：It is powered by way of high frequency positive negative pulse stuffing to LED/light source module, passes through control The pulsewidth of high frequency module processed reaches the effect of two line traffic controls light modulation toning, so that existing product is easily carried out transformation, It is effectively reduced transformation difficulty and saves improvement cost.
Brief description of the drawings
Fig. 1 is the circuit theory schematic diagram of the present invention；
Fig. 2 is the PWM schematic diagrames of two kinds of frequencies of the invention.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in figure 1, a kind of LED light modulating devices based on H-bridge circuit, including dim signal module, LED light sources module, Power supply module, first switch unit Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th switch element Q4, described One switch element Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th switch element Q4 constitute H-bridge circuit, wherein, institute LED/light source module is stated as the load in H-bridge circuit on public bridge arm；
Wherein, the dim signal module includes low colour temperature carrier-frequency circuit U2, high color temperature carrier-frequency circuit U1 and wireless module, Wireless module is electrically connected with the low colour temperature carrier-frequency circuit U2, high color temperature carrier-frequency circuit U1 respectively, the low colour temperature carrier frequency electricity Road U2, high color temperature carrier-frequency circuit Y1 are electrically connected with the H-bridge circuit respectively.The low colour temperature carrier-frequency circuit and high color temperature carrier frequency Circuit is all respectively adopted the data signal that digital analog converter DAC-8 sends to wireless module and received, and exports relative Control of the PWM progress of frequency to the LED/light source module is answered, the regulation to colour temperature and brightness is realized respectively.As shown in Figure 2 The PWM of two kinds of frequencies, is respectively used to control brightness, colour temperature from top to down.
The LED/light source module is composed in parallel by low colour temperature LED and high color temperature LED, and adjacent LED in parallel Opposite direction connection.Low colour temperature LED and high color temperature LED can be multiple, and monochromatic temperature LED series connection is used as a row.
Wherein, the wireless module is bluetooth module BM-S02, is passed by receiving Bluetooth signal and being converted to data signal It is sent to the digital analog converter DAC-8.Bluetooth module BM-S02 receives the regulating command that wireless device is sent.Bluetooth module Pin 2, the pin 2 of low colour temperature carrier-frequency circuit of BM-S02 pin 15,16 respectively with high color temperature carrier-frequency circuit are electrically connected with.
Wherein, the first switch unit Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th switch element Q4 For transistor MOSFET or BJT.Nmos pass transistor is used in the present embodiment.
Wherein, it is parallel with voltage-regulator diode between the drain electrode of the transistor MOSFET and source electrode.One switch element Q1, Two switch element Q2, the 3rd switch element Q3 and the 4th switch element Q4 drain electrode and source electrode respectively and connecting resistance R4, R3, R9, R8。
Wherein, grid of the low colour temperature carrier-frequency circuit respectively with second switch unit Q2 and the 4th switch element Q4 connects Connect, and second switch unit Q2 grid is electrically connected with by resistance R1 and low colour temperature carrier-frequency circuit pin 7, the 4th switch Unit Q4 grid is electrically connected with by resistance R5 and low colour temperature carrier-frequency circuit pin 5；The high color temperature carrier-frequency circuit difference It is connected with first switch unit Q1 and the 3rd switch element Q3 grid, and first switch unit Q1 grid passes through resistance R2 It is electrically connected with the pin 7 of high color temperature carrier-frequency circuit, the 3rd switch element Q3 grid passes through resistance R6 and high color temperature carrier frequency electricity The pin 5 on road is electrically connected with；One end of the LED light sources module is connected to first switch unit Q1 and the 3rd switch element Q3 Between, the other end of the LED light sources module is connected between second switch unit Q2 and the 4th switch element Q4；It is described to supply The positive pole of electric module is connected to first switch unit Q1 and second switch unit Q2 drain electrode, and negative pole is connected to the 3rd switch list First Q3 and the 4th switch element Q4 source electrode.
Wherein, the node between the second switch unit Q2 and the 4th switch element Q4 passes through with low colour temperature carrier-frequency circuit Electric capacity C5 is electrically connected with, and electric capacity C5 and diode D2 negative pole is electrically connected with and carries out Bootstrap by it；It is described Node between first switch unit Q1 and the 3rd switch element Q3 is electrically connected with high color temperature carrier-frequency circuit by electric capacity C2, and And electric capacity C2 and diode D1 negative pole is electrically connected with and carries out Bootstrap by it, diode D1 and diode D2 are just Pole is electrically connected with the power supply module.
Wherein, the power supply module is electrically connected with by voltage-stablizer HT7533 and the wireless module.Voltage-stablizer HT7533 Input terminating resistor R7, polar capacitor C6 be filtered；Output termination capacitor C7 is filtered.The power supply module electrically connects Polar capacitor C1 and Schottky diode D3 are connected to, filtering and voltage stabilizing is used as.Further, the power supply module is electrically connected with an insurance Silk F1.
Embodiment above is merely illustrative and not limiting to the invention, therefore all according to described in present patent application scope The equivalent change or modification done of method, be included in the range of present patent application.

Claims (8)

1. a kind of LED light modulating devices based on H-bridge circuit, including dim signal module, LED light sources module, power supply module, One switch element Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th switch element Q4, the first switch unit Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th switch element Q4 constitute H-bridge circuit, it is characterised in that：It is described LED/light source module is used as the load in H-bridge circuit on public bridge arm；
The dim signal module includes low colour temperature carrier-frequency circuit, high color temperature carrier-frequency circuit and wireless module, wireless module difference It is electrically connected with the low colour temperature carrier-frequency circuit, high color temperature carrier-frequency circuit, the low colour temperature carrier-frequency circuit, high color temperature carrier-frequency circuit It is electrically connected with respectively with the H-bridge circuit；
The LED/light source module is composed in parallel by low colour temperature LED and high color temperature LED, and adjacent LED in parallel is reverse Connection；
Node between the second switch unit Q2 and the 4th switch element Q4 passes through electric capacity C5 electricity with low colour temperature carrier-frequency circuit Property connection, and electric capacity C5 and diode D2 be electrically connected with and pass through its and carry out Bootstrap；The first switch unit Q1 And the 3rd node between switch element Q3 is electrically connected with high color temperature carrier-frequency circuit by electric capacity C2, and electric capacity C2 and two Pole pipe D1 is electrically connected with and carries out Bootstrap by it, and diode D1 and diode D2 positive pole and the power supply module are electrical Connection.
2. a kind of LED light modulating devices based on H-bridge circuit according to claim 1, it is characterised in that：The low colour temperature is carried Frequency circuit and high color temperature carrier-frequency circuit are all respectively adopted the data signal that digital analog converter sends to wireless module and connect Receive, and export control of the PWM progress of corresponding frequency to the LED/light source module, the tune to colour temperature and brightness is realized respectively Section.
3. a kind of LED light modulating devices based on H-bridge circuit according to claim 2, it is characterised in that：The wireless module For bluetooth module, the digital analog converter is sent to by receiving Bluetooth signal and being converted to data signal.
4. a kind of LED light modulating devices based on H-bridge circuit according to claim 1, it is characterised in that：The first switch Unit Q1, second switch unit Q2, the 3rd switch element Q3 and the 4th switch element Q4 are transistor MOSFET.
5. a kind of LED light modulating devices based on H-bridge circuit according to claim 4, it is characterised in that：The transistor Voltage-regulator diode is parallel between MOSFET drain electrode and source electrode.
6. a kind of LED light modulating devices based on H-bridge circuit according to claim 4, it is characterised in that：The low colour temperature is carried Grid of the frequency circuit respectively with second switch unit Q2 and the 4th switch element Q4 is connected, the high color temperature carrier-frequency circuit respectively with First switch unit Q1 and the 3rd switch element Q3 grid connection；One end of the LED light sources module is connected to first switch Between unit Q1 and the 3rd switch element Q3, the other end of the LED light sources module is connected to second switch unit Q2 and the 4th Between switch element Q4；The positive pole of the power supply module is connected to first switch unit Q1 and second switch unit Q2 drain electrode, And negative pole is connected to the 3rd switch element Q3 and the 4th switch element Q4 source electrode.
7. a kind of LED light modulating devices based on H-bridge circuit according to claim 1, it is characterised in that：The power supply module It is electrically connected with by voltage-stablizer and the wireless module.
8. a kind of LED light modulating devices based on H-bridge circuit according to claim 1, it is characterised in that：The power supply module It is electrically connected with polar capacitor C1 and Schottky diode D3.
CN201610376843.0A 2016-06-01 2016-06-01 A kind of LED light modulating devices based on H-bridge circuit Active CN105828489B (en)

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Application Number Priority Date Filing Date Title
CN201610376843.0A CN105828489B (en) 2016-06-01 2016-06-01 A kind of LED light modulating devices based on H-bridge circuit
DE102016121231.8A DE102016121231B4 (en) 2016-06-01 2016-11-07 LED light control device based on an H-bridge circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610376843.0A CN105828489B (en) 2016-06-01 2016-06-01 A kind of LED light modulating devices based on H-bridge circuit

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Publication number Priority date Publication date Assignee Title
CN106793312A (en) * 2016-12-29 2017-05-31 伊戈尔电气股份有限公司 A kind of H bridges switch colour temperature circuit
CN109121260A (en) * 2018-10-26 2019-01-01 叶姜 The positive and negative low-loss LED lamp driving circuit connect

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Publication number Priority date Publication date Assignee Title
EP2309822A2 (en) * 2009-09-30 2011-04-13 Huiyang Technology Co., Ltd. LED dimming apparatus, circuit, and method thereof
CN102612231A (en) * 2012-03-23 2012-07-25 四川新力光源有限公司 LED (Light-Emitting Diode) illumination dimming device
CN104470157A (en) * 2014-12-30 2015-03-25 深圳市元科摄影器材有限公司 LED control system based on WIFI

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DE102016121231A1 (en) 2017-12-07
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Address after: No. 253, Hengli Junma Road, Hengli Town, Dongguan, Guangdong 523460

Patentee after: Guangdong Qingzhou Photoelectric Technology Co.,Ltd.

Address before: 523000 The third floor of the factory building in Xinsi Village, Hengli Town, Dongguan City, Guangdong Province

Patentee before: LETARON ELECTRONIC CO.,LTD.