CN104994638B - The device of the remote adjusting brightness of LED lamps of controlled rectification ripple - Google Patents
The device of the remote adjusting brightness of LED lamps of controlled rectification ripple Download PDFInfo
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- CN104994638B CN104994638B CN201510386873.5A CN201510386873A CN104994638B CN 104994638 B CN104994638 B CN 104994638B CN 201510386873 A CN201510386873 A CN 201510386873A CN 104994638 B CN104994638 B CN 104994638B
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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
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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Abstract
A kind of device of the remote adjusting brightness of LED lamps of controlled rectification ripple, is made up of Commutation control unit, LED brightness adjusting unit.Commutation control unit is given module and constituted by transformer, control power module, controllable rectifier module, zero passage detection module, single chip control module, trigger control module, brightness, input single-phase 220V AC powers, output voltage virtual value is less than 220V controlled rectification voltage, and the brightness control signal by guide wave and data wave component is sent in controlled rectification voltage；LED brightness adjusting unit is made up of regulation power supply module, waveform sampling module, single-chip microcomputer adjustment module, LED drive module, and the brightness control signal in controlled rectification voltage controls the brightness of LED.Described device is without remote control, without individually laying control line, and directly using single phase poaer supply line transmission brightness control signal, the control and regulation of remote LED lamp brightness can be achieved.
Description
Technical field
The present invention relates to a kind of illuminator technology, especially a kind of remote adjusting brightness of LED lamps of controlled rectification ripple
Device.
Background technology
Due to the nonlinear characteristic of LED, the brightness of LED can not be realized by the way of regulation voltage.
When the brightness of LED is adjusted using controllable constant-current source, the change of operating current can bring the chromatogram of LED inclined
Move, meanwhile, LED load current also becomes very low under low-light level, can increase the reduction of controllable constant-current source efficiency and temperature rise, be lost
Power consumption on driving chip is bigger, so that the life-span of constant-current source and LED/light source can be damaged.
Using PWM（Pulsewidth modulation）Dimming mode controls LED brightness, can avoid voltage regulating mode and adjust current system band
The problem of coming.Conventional LED light-dimming method has three kinds at present：
One is to use remote control control.LED control circuit is equipped with remote control device, can pass through remote control pair
LED carries out having level light modulation either stepless dimming, and it has the disadvantage that a LED needs to be equipped with a remote control, causes remote control
Device quantity is more, and management trouble, cost is also higher.
Two be to use digital control technology.For example, using DALI（The lighting interface of digital address）Technology, DALI systems
Software can be separately addressed to the single or multiple LED lamps on same forceful electric power loop or different circuit, pass through DALI systems
Software to single lamp or arbitrary lamp group accurately dim and switch controlling.Program advanced technology, but cost is very high, system
In addition to needing to lay power line, in addition it is also necessary to lay control line.
Three be using single live wire switch on and off control technology.For example, using NU102 special chips, you can utilize common wall
Face switchs the switch motion within the defined time, realizes the brightness regulation of LED.But this method can only provide 4 grades of LEDs
Brightness is adjusted, and switch motion has time requirement.
The content of the invention
The purpose of the present invention aim to provide it is a kind of do not increase control signal wire and without using remote control in the case of, utilize
The device of the remote adjusting brightness of LED lamps of single phase poaer supply line.
To reach above-mentioned purpose, the present invention is adopted the technical scheme that：
A kind of device of the remote adjusting brightness of LED lamps of controlled rectification ripple, by Commutation control unit and LED brightness regulation
Unit is constituted.
The Commutation control unit is provided with phase line input terminal, zero line input terminal, the first controlled rectification lead-out terminal, the
Two controlled rectification lead-out terminals；The phase line input terminal, zero line input terminal input single-phase 220V AC powers；Described first
Controlled rectification lead-out terminal, the second controlled rectification lead-out terminal output controlled rectification voltage.
The LED brightness adjusting unit is provided with the first controlled rectification input terminal, the second controlled rectification input terminal, institute
State the first controlled rectification input terminal, the second controlled rectification input terminal and be respectively connecting to the first controllable whole of Commutation control unit
Flow lead-out terminal, the second controlled rectification lead-out terminal.
The Commutation control unit is by transformer, control power module, controllable rectifier module, zero passage detection module, monolithic
Machine control module, trigger control module, brightness give module composition.
Two input terminals of the transformer are respectively phase line input terminal, zero line input terminal, two lead-out terminals
Respectively the first ac terminal, the second ac terminal；First ac terminal, the second ac terminal export the second alternating current
Source.
The control power module is made up of control power supply single-phase rectification bridge and the first filter regulator circuit, and output first is straight
Flow working power；Two ac input ends of the control power supply single-phase rectification bridge are respectively connecting to the first ac terminal, second
Ac terminal；The rectification negative polarity end for controlling power supply single-phase rectification bridge is publicly.
The controllable rectifier module is by rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, double
Constituted to IGCT V4；2 ac input ends of the rectifier bridge UR1 are respectively connecting to the first ac terminal and the second exchange end
Son, rectification output plus terminal is connected to bidirectional thyristor V3 second plate, and rectification output negative terminal is connected to bidirectional thyristor V4's
Second plate；It is controllable whole that first is connected to after the bidirectional thyristor V1 first anode is in parallel with the bidirectional thyristor V3 first anode
Flow lead-out terminal；Bidirectional thyristor V1 second plate is connected to the first ac terminal；The bidirectional thyristor V2 first anode with
The second controlled rectification lead-out terminal is connected to after the bidirectional thyristor V4 first anode is in parallel；Bidirectional thyristor V2 second plate
It is connected to the second ac terminal.
The trigger control module is provided with exchange control signal, rectification control signal；The exchange control signal
When the AC controling signal of input is effective, trigger control module controls to trigger when bidirectional thyristor V1 and bidirectional thyristor V2 zero passages
Conducting；When the AC controling signal of the exchange control signal input is invalid, trigger control module control bidirectional thyristor V1
End with after bidirectional thyristor V2 zero passages；When the rectification control signal of the rectification control signal input is effective, triggering control
Module controls bidirectional thyristor V3 and triggering and conducting during bidirectional thyristor V4 zero passages；The rectification of the rectification control signal input
When control signal is invalid, end after trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passages.
The zero passage detection module is provided with zero passage voltage input, zero-crossing pulse output end；The zero passage voltage input
It is connected to the first ac terminal；The zero-crossing pulse of the zero-crossing pulse output end output is positive pulse；The zero-crossing pulse and
Two AC power positive half-waves correspondence；The width of the zero-crossing pulse is less than the second AC power positive half-wave width；Described second hands over
It is the second AC power half-wave that the first ac terminal current potential is higher than the second ac terminal current potential to flow power supply positive half-wave.
The brightness gives module and is provided with brightness Setting signal output end.
The single chip control module includes brightness Setting signal input, signal acquisition input and two-way level letter
Number output end；The brightness Setting signal input is connected to the brightness Setting signal output end that brightness gives module；It is described to catch
Catch the zero-crossing pulse output end that signal input part is connected to zero passage detection module；The two-way level signal output end is respectively to hand over
Flow control output end, rectification control output end；The exchange control output end, rectification control output end are respectively connecting to triggering control
Exchange control signal, the rectification control signal of molding block.
The LED brightness adjusting unit is driven by regulation power supply module, waveform sampling module, single-chip microcomputer adjustment module, LED
Dynamic model block is constituted.
The regulation power supply module input controlled rectification voltage, the second DC supply of output, it is single-phase by regulation power supply
Rectifier bridge and the second filter regulator circuit composition；The rectification negative polarity end of the regulation power supply single-phase rectification bridge is reference ground.
The waveform sampling module is provided with sampling Waveform Input end and sampling pulse output end；The sampling Waveform Input end
It is connected to the second controlled rectification input terminal；Second controlled rectification input terminal current potential is higher than first by the waveform sampling module
Simultaneously amplitude limit obtains sampling pulse for the waveform detection of controlled rectification input terminal current potential；The positive pulse of the sampling pulse and second can
Control rectification input terminal current potential corresponding higher than the waveform of the first controlled rectification input terminal current potential.
The single-chip microcomputer adjustment module, which has, catches input and pwm pulse output end, the seizure of single-chip microcomputer adjustment module
Input is connected to the sampling pulse output end of waveform sampling module.
The LED drive module is used to drive LED to light, provided with PWM brightness regulated signal inputs；The PWM is bright
Degree Regulate signal input is connected to the pwm pulse output end of single-chip microcomputer adjustment module.
The Commutation control unit sends the brightness control signal of different brightness degrees by controlling controlled rectification voltage；
The brightness control signal is by guide wave and data wave component；The guide wave is the rectified wave of continuous multiple power frequency periods, number
According to the controlled rectification voltage wave that ripple is continuous multiple power frequency periods.
The LED brightness adjusting unit receives brightness control signal and adjusting brightness of LED lamps in controlled rectification voltage.
The beneficial effects of the invention are as follows, single phase poaer supply line far distance controlled LED brightness is directly used, without remote control,
Without control line；LED brightness regulation can divide multiple gears, with function of turning off the light；Brightness control signal is transmitted using rectified wave,
Flicker and the reduction of power factor when not resulting in LED brightness regulation.
Brief description of the drawings
Fig. 1 is system architecture diagram.
Fig. 2 is Commutation control unit structure chart.
Fig. 3 is controllable rectifier module embodiment circuit diagram.
Fig. 4 is trigger control module embodiment circuit diagram.
Fig. 5 is control section embodiment circuit diagram in Commutation control unit.
Fig. 6 is waveform diagram when embodiment sends the brightness control signal that brightness degree is brightness 2.
Fig. 7 is brightness control signal sending method.
Fig. 8 is LED brightness adjusting unit structure chart.
Fig. 9 is LED brightness adjusting unit regulation section Example circuit diagram.
Figure 10 is LED drive module embodiment circuit diagram.
Figure 11 is brightness reception and adjusting method.
Embodiment
Below by accompanying drawing and the present invention is described in further detail in conjunction with the embodiments, but embodiments of the present invention
Not limited to this.
The system architecture diagram of apparatus of the present invention is as shown in figure 1, by Commutation control unit and LED brightness adjusting unit group
Into.Commutation control unit is controllable whole by first by phase line input terminal L, zero line input terminal N input single-phase 220V AC powers
Flow lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 output controlled rectification voltage.LED brightness adjusting unit is by first
Controlled rectification input terminal AC1, the second controlled rectification input terminal AC2 input controlled rectification voltage and control LED brightness.
The structure of Commutation control unit by transformer, control power module, controllable rectifier module, zero passage as shown in Fig. 2 examined
Survey module, single chip control module, trigger control module, the given module composition of brightness.
Two input terminals of transformer are respectively phase line input terminal L, zero line input terminal N, two lead-out terminals point
Wei not the first ac terminal L1, the second ac terminal N1.First ac terminal L1, the second ac terminal N1 export the second alternating current
Source.The voltage effective value of second AC power is effective less than the voltage for the single-phase 220V AC powers that Commutation control unit is inputted
Value.
The embodiment of controllable rectifier module as shown in figure 3, by rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2,
Bidirectional thyristor V3, bidirectional thyristor V4 are constituted.Rectifier bridge UR1 2 ac input ends are respectively connecting to the first ac terminal
L1 and the second ac terminal N1, rectification output plus terminal is connected to bidirectional thyristor V3 second plate, rectification output negative terminal connection
To bidirectional thyristor V4 second plate；After the bidirectional thyristor V1 first anode is in parallel with the bidirectional thyristor V3 first anode
It is connected to the first controlled rectification lead-out terminal AC1；Bidirectional thyristor V1 second plate is connected to the first ac terminal L1；It is two-way
The second controlled rectification lead-out terminal is connected to after the IGCT V2 first anode is in parallel with the bidirectional thyristor V4 first anode
AC2；Bidirectional thyristor V2 second plate is connected to the second ac terminal N1.
Bidirectional thyristor V1 trigger pulse is inputted from its control pole K11 and first anode K12, bidirectional thyristor V2's
Trigger pulse is inputted from its control pole K21 and first anode K22, bidirectional thyristor V3 trigger pulse from its control pole K31 and
First anode K32 is inputted, and bidirectional thyristor V4 trigger pulse is inputted from its control pole K41 and first anode K42.
Rectifier bridge UR1 uses single-phase rectification bridge stack, or is replaced using 4 diode composition single-phase rectification bridges.
Trigger control module is the circuit for meeting following functions：Provided with exchange control signal, rectification control signal；Hand over
When the AC controling signal of flow control input input is effective, trigger control module control bidirectional thyristor V1 and bidirectional thyristor
Triggering and conducting during V2 zero passages；When the AC controling signal of exchange control signal input is invalid, trigger control module control is two-way
End after IGCT V1 and bidirectional thyristor V2 zero passages；When the rectification control signal of rectification control signal input is effective, triggering
Control module controls bidirectional thyristor V3 and triggering and conducting during bidirectional thyristor V4 zero passages；The rectification of rectification control signal input
When control signal is invalid, end after trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passages.
The embodiment of trigger control module is as shown in figure 4, by zero cross fired optocoupler U1-U4 and input current-limiting resistance R1-
R4, output current limiting resistance R5-R8 are constituted, provided with exchange control signal KJ, rectification control signal KZ.Zero cross fired optocoupler
U1-U4 inside includes input light emitting diode, output optical controlled bidirectional thyrister, and zero-cross triggering circuit.Zero cross fired
Optocoupler U1-U4 model is selected in MOC3041, MOC3042, MOC3043, MOC3061, MOC3062, MOC3063.
Input current-limiting resistance R1 connects with zero cross fired optocoupler U1 input light emitting diode, and series circuit is connected in parallel to the again
One DC supply VDD1 with exchange control signal KJ.Input current-limiting resistance R1 is connected on zero cross fired optocoupler U1 input
Light-emitting diodes tube anode, as shown in Figure 4；Input current-limiting resistance R1 can also be connected on zero cross fired optocoupler U1 input luminous two
The negative electrode of pole pipe.
Input current-limiting resistance R2 connects with zero cross fired optocoupler U2 input light emitting diode, and series circuit is connected in parallel to the again
One DC supply VDD1 with exchange control signal KJ.The input for inputting current-limiting resistance R3 and zero cross fired optocoupler U3 lights
Diode series, series circuit is connected in parallel to the first DC supply VDD1 and rectification control signal KZ again.Input current limliting electricity
Resistance R4 connects with zero cross fired optocoupler U4 input light emitting diode, and series circuit is connected in parallel to the first DC supply VDD1 again
With rectification control signal KZ.Input current-limiting resistance R2-R4 can be connected on the input light-emitting diodes of corresponding zero cross fired optocoupler
Tube anode, as shown in Figure 4；The input light-emitting diodes tube cathode of corresponding zero cross fired optocoupler can also be connected on.
Output current limiting resistance R5 is connected in parallel to double again after being connected with output optical controlled bidirectional thyrister inside zero cross fired optocoupler U1
To IGCT V1 control pole K11 and first anode K12；Output is light-operated inside output current limiting resistance R6 and zero cross fired optocoupler U2
Bidirectional thyristor V2 control pole K21 and first anode K22 are connected in parallel to after bidirectional thyristor series connection again；Output current limiting resistance R7 with
It is connected in parallel to bidirectional thyristor V3 control pole K31 and the inside zero cross fired optocoupler U3 after the series connection of output optical controlled bidirectional thyrister again
One anode K32；Output current limiting resistance R8 is connected in parallel to again after being connected with output optical controlled bidirectional thyrister inside zero cross fired optocoupler U4
Bidirectional thyristor V4 control pole K41 and first anode K42.
In Commutation control unit control section include control power module, it is zero passage detection module, single chip control module, bright
The given module of degree, embodiment circuit is as shown in Figure 5.
The input for controlling power module is the second AC power, is output as the first direct current work provided to Commutation control unit
Make power vd D1.In Fig. 5 embodiments, control power module by diode D01, diode D02, diode D03, diode D04,
Electric capacity C1, three terminal regulator U5 are constituted.Diode D01, diode D02, diode D03, diode D04 composition control power supply lists
Commutating phase bridge；Electric capacity C1 is connected in parallel on the DC voltage output end of control power supply single-phase rectification bridge, strobes；Three terminal regulator
U5 inputs VIN is connected to the rectification positive ends of control power supply single-phase rectification bridge；First DC supply VDD1 is from three ends
Voltage-stablizer U5 output ends VOUT is exported.The rectification negative polarity end of power supply single-phase rectification bridge is controlled for publicly.Three terminal regulator U5
Select H7133.
Control power module can also use other implementations.Diode D01, diode D02, diode D03, two poles
The control power supply single-phase rectification bridge of pipe D04 compositions can be replaced with single-phase rectification bridge stack, and three terminal regulator U5 can use voltage stabilizing
Pipe mu balanced circuit or DC/DC voltage-stablizers.
Zero passage detection module is the circuit with following functions：Provided with zero passage voltage input, zero-crossing pulse output end；Cross
No-voltage input is connected to the first ac terminal；The zero-crossing pulse of zero-crossing pulse output end output is positive pulse；Zero-crossing pulse
It is corresponding with the second AC power positive half-wave；The width of zero-crossing pulse is less than the second AC power positive half-wave width；Second alternating current
Source positive half-wave is the second AC power half-wave that the first ac terminal current potential is higher than the second ac terminal current potential.
In Fig. 5 embodiments, zero passage detection module is detection shaping circuit, by diode D1, resistance R9, voltage-stabiliser tube DW1 groups
Into.Resistance R9 two ends are respectively connecting to diode D1 negative electrodes and voltage-stabiliser tube DW1 negative electrodes, and diode D1 anodes are connected to the first friendship
Terminal L1 is flowed, voltage-stabiliser tube DW1 anodes are connected to publicly.Voltage-stabiliser tube DW1 negative electrodes export for the zero-crossing pulse of output zero-crossing pulse
End.
Brightness gives module and is provided with brightness Setting signal output end, exports brightness Setting signal.In Fig. 5 embodiments, brightness
Given module carries out partial pressure to the first DC supply VDD1 using potentiometer RW1, and obtained brightness Setting signal is brightness
Given voltage.The potentiometer RW1 brightness given voltages exported are divided inton+ 1 interval, minimum voltage interval, which is represented, extinguishes
LED, the brightness degree of its brightness Setting signal is brightness 0；The brightness degree of other interval brightness Setting signals respectively with it is bright
Spend 1-nCorrespondence.
Brightness is given module and can also realized using other devices such as rotary encoder, toggle switch, pulse potential devices.
Single chip control module includes 1 tunnel brightness Setting signal input, 1 road signal acquisition input, 2 road level letters
Number output end.1 tunnel brightness Setting signal input is connected to the brightness Setting signal output end that brightness gives module；1 tunnel is caught
Signal input part is connected to the zero-crossing pulse output end of zero passage detection module, inputs zero-crossing pulse；2 tunnel level signal output ends are
Control output end KJ, rectification control output end KZ are exchanged, the exchange control signal KJ, whole of trigger control module is respectively connecting to
Flow control input KZ.
In Fig. 5 embodiments, single chip control module is made up of single-chip microprocessor MCU 1, crystal oscillator XT1, single-chip microprocessor MCU 1
Model is MSP430G2553.The analog voltage input A0 of single-chip microprocessor MCU 1（P1.0）For brightness Setting signal input, current potential
Device RW1 output voltage is connected to the analog voltage input A0 of single-chip microprocessor MCU 1（P1.0）.If sent using other devices
The brightness Setting signal of switching value, digital quantity form, can be inputted from other I/O mouthfuls of single-chip microprocessor MCU 1.Single-chip microprocessor MCU 1 is led to
Cross and A/D conversions carried out to the brightness given voltage that analog voltage input A0 is inputted, or read I/O mouthfuls of input signal,
Obtain the brightness degree of brightness Setting signal.The P2.0 of single-chip microprocessor MCU 1 is signal acquisition input, is connected to zero passage detection mould
The zero-crossing pulse output end of block.P1.1, P1.2 of single-chip microprocessor MCU 1 are level signal output ends, and wherein P1.1 is that exchange control is defeated
Go out and hold KJ, P1.2 is rectification control output end KZ；Exchange control output end KJ, rectification control output end KZ are respectively connecting to triggering
Exchange control signal KJ, the rectification control signal KZ of control module.
The first controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 output of Commutation control unit are controllable
Commutating voltage, Commutation control unit sends brightness control signal by controlling controlled rectification voltage, and brightness control signal is by drawing
Guided wave and data wave component.The virtual value of controlled rectification voltage is identical with the voltage effective value of the second AC power.
The guide wave is continuousyThe rectified wave of individual power frequency period,yFor the integer more than or equal to 1；The data wave isx
The controlled rectification voltage wave of individual power frequency period,xFor the integer more than or equal to 2.The brightness control signal has brightness 1-n, altogethernIndividual brightness degree；nFor more than or equal to 2, less than or equal to 2 x Integer.It is whole when the brightness degree of brightness Setting signal is brightness 0
Flow control unit closes LED, does not send brightness control signal.The brightness 1- of brightness control signal brightness degreenGiven with brightness
Determine the brightness 1- of luminance signals gradenBetween correspond.
xIn the controlled rectification voltage wave of individual power frequency period, 1 power frequency period correspondence, 1 binary system brightness code,xIndividual power frequency
The controlled rectification voltage wave correspondence in cyclexPosition binary system brightness code；In each power frequency period, its controlled rectification voltage wave is exchange
During ripple, corresponding binary system brightness code is 0；In each power frequency period, when its controlled rectification voltage wave is rectified wave, corresponding two
System brightness code is 1.EitherxIn the controlled rectification voltage wave of individual power frequency period, 1 power frequency period 1 binary system of correspondence is bright
Spend code；In each power frequency period, when its controlled rectification voltage wave is waves AC, corresponding binary system brightness code is 1；Each power frequency
In cycle, when its controlled rectification voltage wave is rectified wave, corresponding binary system brightness code is 0.
Waveform embodiment is as shown in Figure 6 when Commutation control unit sends brightness control signal.In embodiment illustrated in fig. 6yDeng
In 2,xEqual to 3, brightness control signal has brightness 1-8, totally 8 brightness degrees.
What Fig. 6 was sent is the brightness control signal that brightness degree is brightness 2.Fig. 6（a）For the waveform of controlled rectification voltage,
T1 intervals therein are the rectified wave of the power frequency period of guide wave, i.e., 2；T2 intervals are the controllable of the power frequency period of data wave, i.e., 3
Commutating voltage ripple.In the controlled rectification voltage wave of 3 power frequency periods of embodiment, 1 power frequency period 1 binary system brightness of correspondence
Code；In each power frequency period, when its controlled rectification voltage wave is waves AC, corresponding binary system brightness code is 0；Each power frequency week
Interim, when its controlled rectification voltage wave is rectified wave, corresponding binary system brightness code is 1.3 power frequency period correspondences 3 two are entered
Brightness code processed, the scope of brightness code is 000-111, and the brightness degree scope of representative is brightness 1-8.Embodiment illustrated in fig. 6
In data wave, 3 power frequency periods are followed successively by waves AC, waves AC, rectified wave, and 3 binary system brightness codes of correspondence are 001, and this is bright
The brightness degree for spending control signal is brightness 2.
The step of single chip control module sends a brightness control signal is as follows：
Step 1, step 2 is entered when waiting until the rising edge for receiving zero-crossing pulse；
Step 2, stop exchange output, start rectification output；
Step 3, wait, the zero-crossing pulse rising edge received is counted, count value reachesyWhen enter step 4；
Step 4, the controlled rectification voltage wave of 1 power frequency period is sent；
Step 5, step 6 is entered when waiting until the rising edge for receiving zero-crossing pulse；
Step 6, have been sent fromxStep 7 is gone to during the controlled rectification voltage wave of individual power frequency period, otherwise return to step 4；
Step 7, stop rectification output, start exchange output.
LED is not closed, Commutation control unit is not when normal maintenance sends brightness control signal state, single-chip microcomputer control
Molding block control exchange control output end KJ output useful signals, rectification control output end KZ output invalid signals, zero cross fired
Optocoupler U1 and U2 input LEDs ON, zero cross fired optocoupler U3 and U4 input light emitting diode cut-off, two-way crystalline substance
Brake tube V1, bidirectional thyristor V2 are turned on, bidirectional thyristor V3, bidirectional thyristor V4 cut-off, the first controlled rectification lead-out terminal
The controlled rectification voltage of AC1, the second controlled rectification lead-out terminal AC2 output is alternating voltage.In the embodiment shown in fig. 4,
The exchange control output end KJ of single chip control module output, rectification control output end KZ signal are effective for low level.
The zero-crossing pulse of the output of zero passage detection module shown in Fig. 5 is corresponding with the positive half-wave of the second AC power, and zero passage arteries and veins
The width of punching is less than the second AC power positive half-wave width.The second AC power positive half-wave is that the first ac terminal current potential is high
In the second AC power half-wave of the second ac terminal current potential.
Single chip control module is detected after the zero-crossing pulse rising edge corresponding with half-wave in Fig. 61, into step 2.Institute
Stopping exchange output is stated, refers to control exchange control output end KJ output invalid signals, from next mistake of the second AC power
Zero point starts, bidirectional thyristor V1, bidirectional thyristor V2 cut-off；The beginning rectification output, refers to control rectification control output
KZ output useful signals are held, since next zero crossing of the second AC power, bidirectional thyristor V3, bidirectional thyristor V4 are led
Logical, the controlled rectification voltage of the first controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 output is rectified current
Pressure.
The stopping rectification output, refers to control rectification control output end KZ output invalid signals, from the second AC power
Next zero crossing start, bidirectional thyristor V3, bidirectional thyristor V4 cut-off；It is described to start exchange output, refer to that control is handed over
Flow control output end KJ exports useful signal, since next zero crossing of the second AC power, bidirectional thyristor V1, two-way
IGCT V2 is turned on, the controlled rectification electricity of the first controlled rectification lead-out terminal AC1, the second controlled rectification lead-out terminal AC2 output
Press as alternating voltage.
The controlled rectification voltage wave for sending 1 power frequency period, its method is the power frequency period for judging to need to send
Controlled rectification voltage wave be waves AC or rectified wave, if waves AC, then stop rectification output, start exchange output；
If rectified wave, then stop exchange output, start rectification output.
Each single power frequency period in the controlled rectification voltage wave is waves AC, or rectified wave；Single power frequency period
Waves AC by 1 single phase alternating current power supply positive half-wave and minus half wave component of 1 single phase alternating current power supply, positive half-wave bears half-wave preceding
Rear；The rectified wave of single power frequency period is made up of 2 rectified half-waves, first rectified half-waves and the second AC power positive half-wave pair
Should, it is corresponding that second rectified half-waves bears half-wave with the second AC power.The time of the power frequency period is 20ms.The either simplex frequency
Cycle is 1 power frequency period.
Commutation control unit send brightness control signal method as shown in fig. 7, comprises：
Step A, reads brightness Setting signal；
Step B, judges whether to close LED, is that then LED is closed in control, goes to step D；Otherwise step C is gone to；
Step C, sends a brightness control signal；
Step D, judges whether brightness changes, and brightness changes, return to step B；Brightness does not change, and returns
Return step D.
It is to judge whether the brightness degree of brightness Setting signal is brightness 0 to judge whether the method for closing LED；Brightness
Grade closes LED when being brightness 0.It is to judge brightness of brightness Setting signal etc. to judge the method whether brightness changes
Whether level changes.
The method that LED is closed in control is to stop rectification output, stops exchange output；Now the first controlled rectification is exported
Terminal AC1, the second controlled rectification lead-out terminal AC2 do not export controlled rectification voltage.
The structure of LED brightness adjusting unit by regulation power supply module, waveform sampling module, single-chip microcomputer as shown in figure 8, adjusted
Save module, LED drive module composition.
The adjustment portion of LED brightness adjusting unit point includes regulation power supply module, waveform sampling module, single-chip microcomputer regulation mould
Block, embodiment is as shown in Figure 9.
Regulation power supply module provides the second DC supply VDD2 for LED brightness adjusting unit.In Fig. 9 embodiments,
Regulation power supply module is by diode D05, diode D06, diode D07, diode D08, electric capacity C2, three terminal regulator U6 groups
Into.Diode D05, diode D06, diode D07, diode D08 composition regulation power supply single-phase rectification bridges；Electric capacity C2 is connected in parallel on
The DC voltage output end of regulation power supply single-phase rectification bridge, strobes；Three terminal regulator U6 inputs VIN is connected to regulation
The rectification positive ends of power supply single-phase rectification bridge；Second DC supply VDD2 is defeated from three terminal regulator U6 output ends VOUT
Go out.The rectification negative polarity end of regulation power supply single-phase rectification bridge is reference ground.Three terminal regulator U6 selects H7133.
Regulation power supply module can also use other implementations.Diode D05, diode D06, diode D07, two poles
The regulation power supply single-phase rectification bridge of pipe D08 compositions can be replaced with single-phase rectification bridge stack, and three terminal regulator U6 can use voltage stabilizing
Pipe mu balanced circuit or DC/DC voltage-stablizers.
Waveform sampling module is the circuit with following functions：Provided with sampling Waveform Input end and sampling pulse output end；
Sampling Waveform Input end is connected to the second controlled rectification input terminal；Waveform sampling module is electric by the second controlled rectification input terminal
Position is detected higher than the waveform of the first controlled rectification input terminal current potential and amplitude limit obtains sampling pulse；The positive pulse of sampling pulse with
Second controlled rectification input terminal current potential is corresponding higher than the waveform of the first controlled rectification input terminal current potential.
In Fig. 9 embodiments, waveform sampling module is detection shaping circuit, by diode D2, resistance R12, voltage-stabiliser tube DW2 groups
Into.Resistance R12 two ends are respectively connecting to diode D2 negative electrodes and voltage-stabiliser tube DW2 negative electrodes；Diode D2 anodes are sampling waveform
Input, is connected to the second controlled rectification input terminal AC2；Voltage-stabiliser tube DW2 anodes are connected to reference ground；Voltage-stabiliser tube DW2 negative electrodes
For sampling pulse output end.
Single-chip microcomputer adjustment module, which has, catches input and pwm pulse output end, catches input and is connected to waveform sampling
The sampling pulse output end of module.In Fig. 9 embodiments, single-chip microcomputer adjustment module is by single-chip microprocessor MCU 2, crystal oscillator XT2 groups
Into the model of single-chip microprocessor MCU 2 is MSP430G2553, and the seizure input of single-chip microprocessor MCU 2 is P2.0, and pwm pulse output end is
P1.2。
LED drive module is used to drive LED to light, and the LED drive module provided with PWM brightness regulated signal inputs is all
Go for the present invention, be only one of embodiment circuit shown in Figure 10.The PWM brightness regulations letter of LED drive module
Number input is connected to the pwm pulse output end of single-chip microcomputer adjustment module.
In embodiment illustrated in fig. 10, LED drive module is by LED constant-current driver U7, diode D11, diode D12, two
Pole pipe D13, diode D14, electric capacity C3, inductance LG, resistance R14, fast recovery diode D15 compositions, LED constant-current driver U7's
Model PT4115.
In Figure 10 embodiments, diode D11, diode D12, diode D13, diode D14 composition single-phase bridge rectifications
Circuit.2 ac input ends of single phase bridge type rectifier circu are respectively connecting to the first controlled rectification input terminal AC1 and second can
Rectification input terminal AC2 is controlled, direct current output negative terminal is connected to reference ground, and direct current output anode is connected to electric capacity C3 positive poles, LED and driven
Dynamic device U7 power input VIN；Resistance R14 two ends be respectively connecting to LED constant-current driver U7 power voltage terminal VIN,
Output current induction end SEN；Fast recovery diode D15 negative electrodes are connected to LED constant-current driver U7 power voltage terminal VIN, sun
Pole is connected to LED constant-current driver U7 output switching terminal SW；Inductance LG one end is connected to LED constant-current driver U7 switch
Output end SW；LED constant-current driver U7 output current induction end SEN and inductance LG other end is LED drive end, connection
To LED；LED constant-current driver U7 ground input GND is connected to reference ground.LED constant-current driver U7 brightness adjustment control end
DIM is PWM brightness regulated signal inputs.
LED brightness adjusting unit receives brightness control signal and adjusting brightness of LED lamps, and its method as shown in figure 11, is wrapped
Include：
Step one, initialize, set the original intensity grade of LED；
Step 2, adjusts LED luminance；
Step 3, determines whether brightness control signal；There is no brightness control signal, return to step three；There is brilliance control
Signal, goes to step 4；
Step 4, receives brightness control signal；
Step 5, return to step two.
The original intensity grade of LED can be set asnOne in individual brightness degree, for example, setting original intensity etc.
Level is grade 1.
The method of regulation LED luminance is that single-chip microcomputer adjustment module is according to the brightness degree meter of the LED for setting or receiving
PWM value is calculated, corresponding pwm pulse is sent.
Determine whether brightness control signal, method is judges from the first controlled rectification input terminal AC1, second controllable whole
Whether the controlled rectification voltage of stream input terminal AC2 inputs has guide wave.
Brightness control signal is received, method is to receivexThe controlled rectification voltage wave of individual power frequency period, willxIndividual power frequency period
Controlled rectification voltage wave be converted toxPosition binary system brightness code, then willxPosition binary system brightness code is converted to brightness degree.
The function of waveform sampling module is to carry out detection shaping to controlled rectification voltage.In Fig. 9 embodiments, waveform sampling mould
Waveform detection and amplitude limit of the block by the first controlled rectification input terminal AC1 current potentials less than the second controlled rectification input terminal AC2 are obtained
To sampling pulse, export to the seizure input of single-chip microcomputer adjustment module；The positive pulse of sampling pulse and the first controlled rectification are defeated
Enter terminal current potential corresponding less than the half-wave of the second controlled rectification input terminal current potential, sampling pulse positive pulse width is less than should be partly
Wave width.Brightness degree is sampling pulse example such as Fig. 6 of brightness 2 in brightness control signal（b）It is shown；When controlled rectification voltage
During for alternating voltage, sampling pulse is that dutycycle is less than the 50%, square wave with alternating voltage same frequency；When controlled rectification voltage
During for commutating voltage, sampling pulse is low level.
In embodiment illustrated in fig. 6, guide wave is the rectified wave of continuous 2 power frequency periods.The rectification of continuous 2 power frequency periods
Ripple makes occur low level of the width for 40ms, i.e. 2 power frequency period interval in sampling pulse, and low level as shown in Figure 6 is interval
T3。
Judge whether controlled rectification voltage has guide wave, method is to judge whether to have in sampling pulse the width beyIndividual power frequency
Cycle interval low level；If there is the width to be in sampling pulseyThe interval low level of individual power frequency period, then in controlled rectification voltage
There is guide wave；If there is no the width to be in sampling pulseyThe interval low level of individual power frequency period, then do not draw in controlled rectification voltage
Guided wave.
Data wavexIn the controlled rectification voltage wave of individual power frequency period, 1 power frequency period correspondence, 1 binary system brightness code,
Controlled rectification voltage wave in each power frequency period can be waves AC or rectified wave.It is controllable when 1 power frequency period
When commutating voltage ripple is rectified wave, corresponding sampling pulse is the interval low level of 1 power frequency period；When 1 power frequency week
When the controlled rectification voltage wave of phase is waves AC, corresponding sampling pulse is less than 50% square wave for 1 dutycycle.Fig. 6
In illustrated embodiment, data wave is the controlled rectification voltage wave of continuous 3 power frequency periods, and continuous 3 power frequency periods interval existsy
After the interval guide wave of individual power frequency period, interval T4, interval T5, interval T6 are followed successively by.Interval T4, interval T5, interval T6
Sampling pulse is followed successively by square wave, square wave, low level, and 3 binary system brightness codes are 001, and brightness degree is brightness 2.
WillxThe controlled rectification voltage wave of individual power frequency period is converted toxThe method of position binary system brightness code is, in sampling pulse
Receiving width isyIt is continuous after the interval low level of individual power frequency periodxIndividual power frequency period interval is corresponding with data wavexIt is individual
Power frequency period is interval；When the interval sampling pulse of 1 power frequency period is low level, corresponding this binary system brightness code is 1；
When the interval sampling pulse of 1 power frequency period is less than 50% square wave for 1 dutycycle, corresponding this binary system brightness
Code is 0.Either, width is received in sampling pulse isyIt is continuous after the interval low level of individual power frequency periodxIndividual power frequency period
Interval is corresponding with data wavexIndividual power frequency period is interval；When the interval sampling pulse of 1 power frequency period is low level, phase
This binary system brightness code answered is 0；When the interval sampling pulse of 1 power frequency period is less than 50% square wave for 1 dutycycle
When, corresponding this binary system brightness code is 1.
xPosition binary system brightness code, which is converted to brightness degree, the method such as can use calculating, table look-up.In embodiment, 3 two are entered
The scope of brightness code processed is 000-111, and the brightness degree scope of representative is brightness 1-8；When brightness code is 000, brightness degree
For brightness 1；When brightness code is 001, brightness degree is brightness 2；By that analogy, when brightness code is 111, brightness degree is brightness 8.
Regulation power supply module from controlled rectification voltage to LED brightness adjusting unit, LED drive module and waveform sampling mould
Block is directly powered, and regulation power supply module therein, LED drive module carry out rectification to controlled rectification voltage first, then through electric capacity
After filtering, power supply is provided to interlock circuit；When controlled rectification voltage is zero, regulation power supply module, the power supply electricity of LED drive module
Stream is also zero；Waveform sampling module loads for non-linear resistive, when controlled rectification voltage is zero, the power supply of waveform sampling module
Electric current is zero.Therefore, when controlled rectification voltage is zero, its source current provided to LED brightness adjusting unit is zero.Institute
So that Commutation control unit carries out stopping exchange output, beginning rectification output in the zero crossing of the second AC power, or is off
When rectification exports, starts the switching of exchange output, bidirectional thyristor V1, bidirectional thyristor V2 and bidirectional thyristor V3, two-way crystalline substance
Can succeed the change of current between brake tube V4, will not cause power supply short circuit.
The present invention has following features：
1. power line far distance controlled LED brightness is used, without remote control, without control line；
2. LED brightness can be divided into multiple grades as needed；
3. brightness control signal is transmitted using rectified wave, flicker and power factor when not resulting in LED brightness regulation
Reduction.
Claims (7)
1. a kind of device of the remote adjusting brightness of LED lamps of controlled rectification ripple, it is characterised in that：
It is made up of Commutation control unit and LED brightness adjusting unit；
The Commutation control unit provided with phase line input terminal, zero line input terminal, the first controlled rectification lead-out terminal, second can
Control rectification output end；The phase line input terminal, zero line input terminal input single-phase 220V AC powers；Described first is controllable
Rectification output end, the second controlled rectification lead-out terminal output controlled rectification voltage；
The LED brightness adjusting unit is provided with the first controlled rectification input terminal, the second controlled rectification input terminal, described the
The first controlled rectification that one controlled rectification input terminal, the second controlled rectification input terminal are respectively connecting to Commutation control unit is defeated
Go out terminal, the second controlled rectification lead-out terminal；
The Commutation control unit is by transformer, control power module, controllable rectifier module, zero passage detection module, single-chip microcomputer control
Molding block, trigger control module, brightness give module composition；
Two input terminals of the transformer are respectively phase line input terminal, zero line input terminal, two lead-out terminal difference
For the first ac terminal, the second ac terminal；First ac terminal, the second ac terminal export the second AC power；
The control power module is made up of control power supply single-phase rectification bridge and the first filter regulator circuit, exports the first direct current work
Make power supply；Two ac input ends of the control power supply single-phase rectification bridge are respectively connecting to the first ac terminal, the second exchange
Terminal；The rectification negative polarity end for controlling power supply single-phase rectification bridge is publicly；
The controllable rectifier module is by rectifier bridge UR1, bidirectional thyristor V1, bidirectional thyristor V2, bidirectional thyristor V3, two-way crystalline substance
Brake tube V4 is constituted；2 ac input ends of the rectifier bridge UR1 are respectively connecting to the first ac terminal and the second ac terminal,
Rectification output plus terminal is connected to bidirectional thyristor V3 second plate, and rectification output negative terminal is connected to the second of bidirectional thyristor V4
Anode；It is defeated that the first controlled rectification is connected to after the bidirectional thyristor V1 first anode is in parallel with the bidirectional thyristor V3 first anode
Go out terminal；Bidirectional thyristor V1 second plate is connected to the first ac terminal；The bidirectional thyristor V2 first anode with it is two-way
The second controlled rectification lead-out terminal is connected to after the IGCT V4 first anode is in parallel；Bidirectional thyristor V2 second plate connection
To the second ac terminal；
The trigger control module is provided with exchange control signal, rectification control signal；The exchange control signal input
AC controling signal it is effective when, trigger control module control bidirectional thyristor V1 and during bidirectional thyristor V2 zero passages triggering lead
It is logical；It is described exchange control signal input AC controling signal it is invalid when, trigger control module control bidirectional thyristor V1 and
End after bidirectional thyristor V2 zero passages；When the rectification control signal of the rectification control signal input is effective, triggering control mould
Block controls bidirectional thyristor V3 and triggering and conducting during bidirectional thyristor V4 zero passages；The rectification control of the rectification control signal input
During invalidating signal processed, end after trigger control module control bidirectional thyristor V3 and bidirectional thyristor V4 zero passages；
The zero passage detection module is provided with zero passage voltage input, zero-crossing pulse output end；The zero passage voltage input connection
To the first ac terminal；The zero-crossing pulse of the zero-crossing pulse output end output is positive pulse；The zero-crossing pulse and second is handed over
Flow power supply positive half-wave correspondence；The width of the zero-crossing pulse is less than the second AC power positive half-wave width；Second alternating current
Source positive half-wave is the second AC power half-wave that the first ac terminal current potential is higher than the second ac terminal current potential；The zero passage detection
Module is made up of diode D1, resistance R9, voltage-stabiliser tube DW1；Resistance R9 two ends are respectively connecting to diode D1 negative electrodes and voltage stabilizing
Pipe DW1 negative electrodes, diode D1 anodes are zero passage voltage input；Voltage-stabiliser tube DW1 anodes are connected to publicly；Voltage-stabiliser tube DW1 is cloudy
Extremely zero-crossing pulse output end；
The brightness gives module and is provided with brightness Setting signal output end；
It is defeated that the single chip control module includes brightness Setting signal input, signal acquisition input and two-way level signal
Go out end；The brightness Setting signal input is connected to the brightness Setting signal output end that brightness gives module；It is described to catch letter
Number input is connected to the zero-crossing pulse output end of zero passage detection module；The two-way level signal output end is respectively exchange control
Output end processed, rectification control output end；The exchange control output end, rectification control output end are respectively connecting to triggering control mould
Exchange control signal, the rectification control signal of block；
The LED brightness adjusting unit drives mould by regulation power supply module, waveform sampling module, single-chip microcomputer adjustment module, LED
Block is constituted；
The regulation power supply module input controlled rectification voltage, the second DC supply of output, by regulation power supply single-phase rectifier
Bridge and the second filter regulator circuit composition；The rectification negative polarity end of the regulation power supply single-phase rectification bridge is reference ground；
The waveform sampling module is provided with sampling Waveform Input end and sampling pulse output end；Sampling Waveform Input end connection
To the second controlled rectification input terminal；The waveform sampling module is controllable higher than first by the second controlled rectification input terminal current potential
Simultaneously amplitude limit obtains sampling pulse for the waveform detection of rectification input terminal current potential；The positive pulse of the sampling pulse is controllable whole with second
Flow input terminal current potential corresponding higher than the waveform of the first controlled rectification input terminal current potential；The waveform sampling module is by two poles
Pipe D2, resistance R12, voltage-stabiliser tube DW2 compositions；It is cloudy with voltage-stabiliser tube DW2 that resistance R12 two ends are respectively connecting to diode D2 negative electrodes
Pole, diode D2 anodes are sampling Waveform Input end；Voltage-stabiliser tube DW2 anodes are connected to reference ground；Voltage-stabiliser tube DW2 negative electrodes are sampling
Pulse output end；
The single-chip microcomputer adjustment module, which has, catches input and pwm pulse output end, the seizure input of single-chip microcomputer adjustment module
End is connected to the sampling pulse output end of waveform sampling module；
The LED drive module is used to drive LED to light, provided with PWM brightness regulated signal inputs；The PWM brightness is adjusted
Section signal input part is connected to the pwm pulse output end of single-chip microcomputer adjustment module；
The Commutation control unit sends the brightness control signal of different brightness degrees by controlling controlled rectification voltage；It is described
Brightness control signal is by guide wave and data wave component；The guide wave is the rectified wave of continuous multiple power frequency periods, data wave
For the controlled rectification voltage wave of continuous multiple power frequency periods；
The LED brightness adjusting unit receives brightness control signal and adjusting brightness of LED lamps in controlled rectification voltage.
2. the device of the remote adjusting brightness of LED lamps of controlled rectification ripple according to claim 1, it is characterised in that：
The control power module is by diode D01, diode D02, diode D03, diode D04, electric capacity C1, three-terminal voltage-stabilizing
Device U5 is constituted；Diode D01, diode D02, diode D03, diode D04 composition control power supply single-phase rectification bridges；Electric capacity C1
Strobe, be connected in parallel on the DC voltage output end of control power supply single-phase rectification bridge；Three terminal regulator U5 inputs VIN connections
To the rectification positive ends for controlling power supply single-phase rectification bridge；First DC supply is defeated from three terminal regulator U5 output ends VOUT
Go out.
3. the device of the remote adjusting brightness of LED lamps of controlled rectification ripple according to claim 1, it is characterised in that：It is described
Regulation power supply module is by diode D05, diode D06, diode D07, diode D08, electric capacity C2, three terminal regulator U6 groups
Into；Diode D05, diode D06, diode D07, diode D08 composition regulation power supply single-phase rectification bridges；Electric capacity C2 is connected in parallel on
The DC voltage output end of regulation power supply single-phase rectification bridge, strobes；Three terminal regulator U6 inputs VIN is connected to regulation
The rectification positive ends of power supply single-phase rectification bridge；Second DC supply is exported from three terminal regulator U6 output ends VOUT.
4. the device of the remote adjusting brightness of LED lamps of controlled rectification ripple according to claim 1, it is characterised in that：It is described
Trigger control module is by zero cross fired optocoupler U1, zero cross fired optocoupler U2, zero cross fired optocoupler U3, zero cross fired optocoupler U4, defeated
Enter current-limiting resistance R1, input current-limiting resistance R2, input current-limiting resistance R3, input current-limiting resistance R4, output current limiting resistance R5, output
Current-limiting resistance R6, output current limiting resistance R7, output current limiting resistance R8 compositions, provided with exchange control signal, rectification control input
End；
The zero cross fired optocoupler U1, zero cross fired optocoupler U2, zero cross fired optocoupler U3, zero cross fired optocoupler U4 inside include
There are input light emitting diode and output optical controlled bidirectional thyrister；
First DC supply connection input current-limiting resistance R1 one end, the input current-limiting resistance R1 other ends and zero cross fired optocoupler
U1 input light-emitting diodes tube anode connection, zero cross fired optocoupler U1 input light-emitting diodes tube cathode connection exchange control input
End；First DC supply connection input current-limiting resistance R2 one end, the input current-limiting resistance R2 other ends and zero cross fired optocoupler
U2 input light-emitting diodes tube anode connection, zero cross fired optocoupler U2 input light-emitting diodes tube cathode connection exchange control input
End；First DC supply connection input current-limiting resistance R3 one end, the input current-limiting resistance R3 other ends and zero cross fired optocoupler
U3 input light-emitting diodes tube anode connection, zero cross fired optocoupler U3 input light-emitting diodes tube cathode connection exchange control input
End；First DC supply connection input current-limiting resistance R4 one end, the input current-limiting resistance R4 other ends and zero cross fired optocoupler
U4 input light-emitting diodes tube anode connection, zero cross fired optocoupler U4 input light-emitting diodes tube cathode connection exchange control input
End；
The output current limiting resistance R5 is connected in parallel to double again after being connected with output optical controlled bidirectional thyrister inside zero cross fired optocoupler U1
To IGCT V1 control pole and the first anode；The light-operated two-way crystalline substance of output inside output current limiting resistance R6 and zero cross fired optocoupler U2
Bidirectional thyristor V2 control pole and the first anode are connected in parallel to after brake tube series connection again；Output current limiting resistance R7 and zero cross fired optocoupler
It is connected in parallel to bidirectional thyristor V3 control pole and the first anode inside U3 after the series connection of output optical controlled bidirectional thyrister again；Output current limiting
Resistance R8 is connected in parallel to bidirectional thyristor V4 control again after being connected with output optical controlled bidirectional thyrister inside zero cross fired optocoupler U4
Pole and the first anode.
5. the device of the remote adjusting brightness of LED lamps of controlled rectification ripple according to claim 1, it is characterised in that：It is described
It is potentiometer that brightness, which gives module,.
6. the device of the remote adjusting brightness of LED lamps of controlled rectification ripple according to claim 1, it is characterised in that：It is described
Single chip control module is made up of single-chip microprocessor MCU 1, crystal oscillator XT1；The model of the single-chip microprocessor MCU 1 is
MSP430G2553。
7. the device of the remote adjusting brightness of LED lamps of controlled rectification ripple according to claim 1, it is characterised in that：It is described
Single-chip microcomputer adjustment module is made up of single-chip microprocessor MCU 2, crystal oscillator XT2；The model of the single-chip microprocessor MCU 2 is
MSP430G2553。
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| CN201710493674.3A CN107249242B (en) | 2015-07-06 | 2015-07-06 | A kind of single phase poaer supply line sends the device of LED light brightness control signal |
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| CN106655821A (en) * | 2017-03-13 | 2017-05-10 | 湖南工业大学 | Single-phase optocoupler current double type step-down rectifier applicable to high voltages |
| CN106655832A (en) * | 2017-03-13 | 2017-05-10 | 湖南工业大学 | Single-phase optical-coupler current-double voltage reduction rectifier with current expansion structure |
| CN106655820A (en) * | 2017-03-13 | 2017-05-10 | 湖南工业大学 | Single-phase photocoupling current-doubling type voltage reduction rectifier |
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| CN203851352U (en) * | 2014-06-03 | 2014-09-24 | 成都玺汇科技有限公司 | Integrated dimming circuit |
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| CN103957636A (en) * | 2014-04-28 | 2014-07-30 | Tcl-罗格朗国际电工（惠州）有限公司 | Two-wire dimming circuit |
| CN104602421B (en) * | 2015-02-15 | 2019-03-15 | 黄焕珠 | A kind of LED street lamp driver of multifunctional efficient electricity-saving rate long-life |
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| CN103281849A (en) * | 2013-06-26 | 2013-09-04 | 湖南工业大学 | Light-adjusting device and method of LED illuminating lamp |
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| CN203851352U (en) * | 2014-06-03 | 2014-09-24 | 成都玺汇科技有限公司 | Integrated dimming circuit |
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Inventor after: Chen Gang Inventor after: Ling Yun Inventor after: Xiao Shenping Inventor after: Zeng Hongbing Inventor after: Kong Lingshuang Inventor after: Xiao Huiqin Inventor before: Ling Yun Inventor before: Xiao Shenping Inventor before: Chen Gang Inventor before: Zeng Hongbing Inventor before: Kong Lingshuang Inventor before: Xiao Huiqin |
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Effective date of registration: 20191225 Address after: 315000 Hedong Village, Xiaying Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: NINGBO CORELEAD OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: 412007 School of industry, research and production, Hunan University of Technology, 88 West Taishan Road, Zhuzhou, Hunan Patentee before: Hunan University of Technology |