CN105338686B - High reliable intelligent switching device - Google Patents
High reliable intelligent switching device Download PDFInfo
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- CN105338686B CN105338686B CN201410390889.9A CN201410390889A CN105338686B CN 105338686 B CN105338686 B CN 105338686B CN 201410390889 A CN201410390889 A CN 201410390889A CN 105338686 B CN105338686 B CN 105338686B
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- 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
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The present invention discloses a kind of High reliable intelligent switching device, capacitance plate, LED hot terminals, alternating current hot terminal, intermediate plate including shell, on shell, there is circuit board, which includes current detection circuit, silicon-controlled, control module, dynamic current holding circuit, zero cross detection circuit and environmental light brightness induction module between the intermediate plate and rear cover；Central processing module for controlling capacitance touching control screen assembly is electrically connected with control module；Current detection circuit, silicon-controlled is in series between LED hot terminals and alternating current hot terminal；Zero curve connecting terminal, LED hot terminal are parallel with scr promoter current circuit, dynamic current holding circuit, and according to the whether enabled dynamic current holding circuit of sensed current signal dynamic adjustment from current detection circuit.The present invention, which has exempted from the electric current through control module, can flow through LED lamp, solve the LED lamp controlled originally and the phenomenon that flickering or can not closing occur.
Description
Technical field
The present invention relates to power switch technical fields, and in particular to a kind of High reliable intelligent switching device.
Background technology
Existing capacitive touch-sensitive switch can only often control the Push And Release of LED light, take into consideration only illumination, can not lead to
Switch is crossed to adjust the brightness of LED light, the use demand of more people cannot be met；Such as it cannot be according to season, become to illuminance
Change the brightness for going setting LED light；On the one hand, LED lamp cannot well adapt to traditional controllable silicon dimmer, because of LED light
Tool is built-in with Switching Power Supply and thus Switching Power Supply drives, and the electric current of Switching Power Supply at work is usually discontinuous, that is, is handing over
The electric current non-continuous event that up to a hundred times to thousands of times are had in galvanic electricity a cycle, it is electric at electric current the lowest point even if electric current is continuous
Stream size is often not enough to maintain the maintenance electric current of silicon-controlled normally, when LED lamp power is smaller or great power LED
Be especially apparent when lamps and lanterns are turned down electric current by controllable silicon light modulation, due to flow through silicon-controlled electric current be less than make its maintain conducting
Silicon-controlled when electric current to accidental switch off, only equal next times could be switched on again when being triggered, and is even less than when electric current is too small
So that the silicon-controlled conducting that is triggered, the phenomenon that there have been LED light brightness exception and flicker；On the other hand, also there is number at present
Dimmer switch, existing this dimmer switch even form current supply circuit with lamp string completely by machine controllable silicon, in order to
Lamp can be made smoothly to switch and dim, so microcontroller must keep normal power supply, and the electric current for flowing through control circuit can flowing through lamps
Bubble, tens milliamperes of electric current is insufficient to allow traditional incandescent lamp to light, but may be lit for LED light, so causing
Originally the LED lamp controlled occurs flickering or can not close.Therefore, how designing one kind can realize that LED lamp dims,
It is avoided that the power switch of flicker becomes the direction that those skilled in the art make great efforts again.
Invention content
It is an object of the present invention to provide a kind of High reliable intelligent switching device, this High reliable intelligent switching device solves
Make the silicon-controlled situation born excessively high inverse electromotive force and surprisingly opened when current switching, and avoids the electricity through control module
Stream can flow through LED lamp, solve the LED lamp controlled originally and the phenomenon that flickering or can not closing occur.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of High reliable intelligent switching device, including shell
Body, the capacitance plate on shell, zero curve connecting terminal, LED hot terminals, alternating current hot terminal, intermediate plate
And rear cover, have circuit board, LED hot terminals described for connecting LED lamp between the intermediate plate and rear cover
Alternating current hot terminal for connecting alternating current firewire, the circuit board include current detection circuit, silicon-controlled, control module,
Zero cross detection circuit, environmental light brightness induction module；One capacitance touching control screen assembly, for controlling capacitance touching control screen assembly
Central processing module is electrically connected with control module, and the environmental light brightness induction module is connected to central processing module；In described
Between be provided with the on ＆ off switch being connect with control module, positive and negative light modulation key on plate；The positive and negative light modulation key is for controlling trigger pulse
The delay of electric current is to realize that the control to thyristor operating angle, the on ＆ off switch are generated and closed for controlling trigger pulse electric current
It closes；
The zero cross detection circuit input terminal is connected to the firewire and zero curve of alternating current, and the output end of this zero cross detection circuit connects
It is connected to control module, for detecting zero information in mains AC, to generate alternating current zero cross signal；
Current detection circuit, silicon-controlled, electricity are in series between LED hot terminals and alternating current hot terminal
Current detection circuit is silicon-controlled to be flowed into for controlling for detecting real-time current size in alternating current firewire and generating sensed current signal
The current switching of load；
The zero curve connecting terminal, LED hot terminal are parallel with scr promoter current circuit, dynamic current maintains
Circuit；
The scr promoter current circuit includes concatenated resistance R20 and capacitance C7, and capacitance C7 absorbs LED lamp 14 and opens
Inverse electromotive force during pass, while making to silicon-controlled conducting moment offer starting current can in the case where trigger signal drives
Control silicon conducting；
It is described it is silicon-controlled silicon controlled control circuit is provided between control module, this silicon controlled control circuit is used for can
It controls silicon and trigger pulse electric current is provided；
It is provided with optocoupler between the dynamic current holding circuit and control module and transmits control circuit, this optocoupler transmits control
Circuit processed determines the need for enabled dynamic current holding circuit according to starting current size；
The control module generates trigger pulse electric current according to alternating current zero cross signal to control silicon controlled control circuit, and
According to the whether enabled dynamic current holding circuit of sensed current signal dynamic adjustment from current detection circuit；
Light luminance contains environmental light brightness information to generate in the environmental light brightness induction module induced environment
Brightness signal, brightness signal is transferred to control module by the central processing module, and then adjusts trigger pulse electric current
Delay is to realize the control to thyristor operating angle.
Further improved scheme is as follows in above-mentioned technical proposal：
1. in said program, the dynamic current holding circuit, the starting current for maintaining controlled silicon conducting comprising
Reduction voltage circuit, electric bridge J3, Hall current sensing device U12, full-wave rectification amplifying circuit, 1.25V centered on amplifier U11 are
Source of stable pressure D3, the NMOS device U7 and capacitance C8, the reduction voltage circuit for providing constant low-voltage of benchmark are located at electric bridge J3
Between source of stable pressure D3, the NMOS device U7 on the basis of 1.25V, the one end NMOS device U7 is connected by resistance R36 with electric bridge J3
To silicon-controlled (6), the NMOS device U7 other ends are grounded by resistance R23, R26, and the source of stable pressure D3 on the basis of the 1.25V is located at
Between the grid and ground connection of NMOS device U7, gate pole and the voltage stabilizing on the basis of 1.25V that the capacitance C8 is located at NMOS device U7
Between the D3 of source, the electric current for flowing through the source of stable pressure D3 on the basis of 1.25V is I, steady on the basis of 1.25V when I is more than setting electric current
The reference input terminal voltage of potential source D3 increases, and causes the source of stable pressure D3 negative and positive electrode impedances on the basis of 1.25V to be lower, NMOS device
The gate voltage of U7 also accordingly reduces, thus I just reduces, to the constant current value in setting.
2. in said program, a switching power circuit input terminal is connected to the firewire and zero curve of alternating current, for handing over alternating current
Galvanic electricity is converted into DC low-voltage electricity and provides electric energy to control module, active rectification amplifying circuit, silicon controlled control circuit, described
Switching power circuit output end is in series with overvoltage crowbar.
3. further including humiture induction module in said program, for temperature, humidity in induced environment, and temperature will be contained
The signal transmission of humidity information is shown to central processing module, and by capacitance touching control screen assembly.
4. in said program, the silicon controlled control circuit includes triode T3, the silicon-controlled U1 of optocoupler, resistance R41, three poles
Pipe T3 and resistance R41 connects and is located between voltage end and ground connection, and the input terminal of the resistance R41 and silicon-controlled U1 of optocoupler is simultaneously
Connection, the base stage of triode T3 are connected to control module, and 2 output ends of the silicon-controlled U1 of optocoupler are connected respectively to silicon-controlled gate pole
And input terminal.
5. in said program, the current detection circuit is using Hall current sensing device U3, the active rectification amplification
Circuit includes operational amplifier U4, PMOS device U9, triode T2, and the operational amplifier U4 and PMOS device U9 are arranged in parallel
And be respectively positioned between current detection circuit and control module, the collector and emitter of triode T2 is located at the grid of PMOS device U9
Between pole and ground connection, and the base stage of triode T2 is connected to control module, for receive for amplification and it is normal between switch
Amplification selection signal.
6. in said program, it includes PMOS device U6, optocoupler U10, this PMOS device U6 that the optocoupler, which transmits control circuit,
It is connected with the source of stable pressure D3 on the basis of 1.25V by resistance, the output end of this optocoupler U10 is connected to the gate pole of PMOS device U6,
The input terminal of optocoupler U10 is connected to control module.
7. further including humiture induction module in said program, for temperature, humidity in induced environment, and temperature will be contained
The signal transmission of humidity information is shown to central processing module, and by capacitance touching control screen assembly.
8. further including camera, WIFI module, microphone and loudspeaker module, the WIFI module, wheat in said program
Gram wind and loudspeaker module are connected to central processing module.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art：
1. High reliable intelligent switching device of the present invention, which solve light high-power LED lamp (such as 500W or more)
When, since high-power LED lamp induction reactance is excessive, LED light is mostly Switching Power Supply driving, and when current switching when power is larger makes
The silicon-controlled situation born excessively high inverse electromotive force and surprisingly opened is substantially increased and is applied in high-power LED lamp
Reliability；Next, while compatible low-power LED lamp (such as 8W or less) and high-power LED lamp (such as 500W or more), and can
The intelligent controllable silicon dimmer of real-time measuring electric quantity, solves since LED lamp power is smaller and electric current discontinuously makes silicon-controlled meaning
The phenomenon that outer closing leads to flicker, improve that electrical measurement precision caused by differing greatly due to bearing power is relatively low to ask
Topic.
2. High reliable intelligent switching device of the present invention is used to control and drive power branch and the power supply of LED lamp
Power branch is separately positioned, ensures the power supplies such as control module simultaneously in LED lamp, avoiding the electric current through control module can flow through
LED lamp, tens milliamperes of electric current is insufficient to allow traditional incandescent lamp to light, but may be lit for LED light, solves
Originally there is the phenomenon that flickering or can not closing in the LED lamp controlled；Secondly, current detection circuit and control module
Between be provided with active rectification amplifying circuit, it is relatively low to improve electrical measurement precision caused by differing greatly due to bearing power
The problem of.
3. High reliable intelligent switching device of the present invention, avoid the electric current when current impulse is in the lowest point be less than it is silicon-controlled
Minimum maintenance electric current and cause to accidental switch off, flicker, when bearing power is smaller, load current is less than silicon-controlled minimum
Electric current is maintained to also result in silicon-controlled accidental switch off；Again, control module obtains real-time electricity according to real-time collected current value
When stream is higher than silicon-controlled required maintenance electric current, control circuit is transmitted by optocoupler and closes dynamic current holding circuit, reaches and carries
The effect of high system effectiveness, equally, when microcontroller 11 in real time collected current value be always zero reach certain time length after, pass through
Optocoupler transmits control circuit and closes dynamic current holding circuit, achievees the effect that improve system effectiveness.
4. High reliable intelligent switching device of the present invention, can according to illumination intensity in environment, adjust automatically LED lamp
Brightness both improves comfort, also saves the energy, while amusement and leisure can be realized by switch panel, online, and information is aobvious
Show, greatly facilitates the diversified demand of people.
Description of the drawings
Fig. 1 is the structural schematic diagram of High reliable intelligent switching device of the present invention；
Fig. 2 is the schematic block circuit diagram of High reliable intelligent switching device of the present invention；
Fig. 3 is the electrical block diagram of High reliable intelligent switching device of the present invention；
Fig. 4 is control module schematic diagram in High reliable intelligent switching device of the present invention；
Fig. 5 is switching power circuit structural schematic diagram in High reliable intelligent switching device of the present invention；
Fig. 6 is overvoltage crowbar structural schematic diagram in High reliable intelligent switching device of the present invention.
In the figures above：1, switching power circuit；2, overvoltage crowbar；3, zero cross detection circuit；4, current detecting electricity
Road；5, active rectification amplifying circuit；6, silicon-controlled；7, silicon controlled control circuit；8, scr promoter current circuit；9, dynamic electric
Flow holding circuit；10, optocoupler transmits control circuit；11, control module；12, on ＆ off switch；13, positive and negative light modulation key；14, LED light
Tool；15, capacitance touching control screen assembly；16, central processing module；17, humiture induction module；18, camera；19, WIFI moulds
Block；20, microphone and loudspeaker module；21, display screen；22, environmental light brightness induction module；23, shell；24, capacitance plate；
25, intermediate plate；26, rear cover.
Specific implementation mode
With reference to embodiment, the invention will be further described：
Embodiment：A kind of High reliable intelligent switching device, including shell 23, the capacitance plate 24 on shell 23,
Zero curve connecting terminal, LED hot terminals, alternating current hot terminal, intermediate plate 25 and rear cover 26,25 He of the intermediate plate
There is circuit board, LED hot terminals is for connecting LED lamp 14, the alternating current hot terminal between rear cover 26
For son for connecting alternating current firewire, the circuit board includes current detection circuit 4, silicon-controlled 6, control module 11, zero passage detection electricity
Road 3, environmental light brightness induction module 22；One capacitance touching control screen assembly 15, for controlling in capacitance touching control screen assembly 15
Centre processing module 16 is electrically connected with control module 11, and the environmental light brightness induction module 22 is connected to central processing module 16；
The on ＆ off switch 12 being connect with control module 11, positive and negative light modulation key 13 are provided on the intermediate plate 25；The positive and negative light modulation
Key 13 is used to control the delay of trigger pulse electric current to realize that the control to silicon-controlled 6 angle of flow, the on ＆ off switch 12 are used for
Trigger pulse electric current is controlled to generate and close；
3 input terminal of the zero cross detection circuit is connected to the firewire and zero curve of alternating current, the output end of this zero cross detection circuit
It is connected to control module 11, for detecting zero information in mains AC, to generate alternating current zero cross signal；
Current detection circuit 4, silicon-controlled 6 are in series between LED hot terminals and alternating current hot terminal,
Current detection circuit 4 is for detecting real-time current size in alternating current firewire and generating sensed current signal, and silicon-controlled 6 for controlling
Flow into the current switching of load；
The zero curve connecting terminal, LED hot terminal are parallel with scr promoter current circuit 8, dynamic current dimension
Hold circuit 9；
The scr promoter current circuit 8 includes concatenated resistance R20 and capacitance C7, and capacitance C7 absorbs LED lamp 14
Inverse electromotive force in switching process, while providing starting current to silicon-controlled 6 conducting moment and to drive in trigger signal
Under it is silicon-controlled 6 conducting；
The dynamic current holding circuit 9, the starting current for maintaining silicon-controlled 6 conducting comprising reduction voltage circuit, electricity
Bridge J3, Hall current sensing device U12, the full-wave rectification amplifying circuit centered on amplifier U11, the voltage stabilizing on the basis of 1.25V
Source D3, NMOS device U7 and capacitance C8, it is base that the reduction voltage circuit for providing constant low-voltage, which is located at electric bridge J3 and 1.25V,
Between accurate source of stable pressure D3, NMOS device U7, the one end NMOS device U7 is connected to silicon-controlled (6) by resistance R36 and electric bridge J3,
The NMOS device U7 other ends are grounded by resistance R23, R26, and the source of stable pressure D3 on the basis of the 1.25V is located at NMOS device U7's
Between grid and ground connection, the capacitance C8 is located between the gate pole of NMOS device U7 and the source of stable pressure D3 on the basis of 1.25V, effect
It is to delay the switch time of NMOS device U7 that current spike, the full-wave rectification amplifying circuit is avoided to be located at Hall current inductor
Between source of stable pressure D3 on the basis of part U12 and 1.25V, flows through the electric current of load while also flowing through Hall current sensing device U12,
The current signal sensed is converted to voltage signal and is amplified by the full-wave rectification amplifying circuit centered on amplifier U11 by U12
With the reference input foot for the source of stable pressure D3 being output to after rectification on the basis of 1.25V, it is assumed that the voltage converted all is U, then flows through
The electric current of NMOS device U7 is by formula：
It obtains, so the electric current for flowing through NMOS device U7 is set by U, when I is more than setting electric current, on the basis of 1.25V
The reference input terminal voltage of source of stable pressure D3 increases, and causes the source of stable pressure D3 negative and positive electrode impedances on the basis of 1.25V to be lower, NMOS devices
The gate voltage of part U7 also accordingly reduces, thus I just reduces, to the constant current value in setting；
It is provided with silicon controlled control circuit 7 between described silicon-controlled 6 and control module 11, this silicon controlled control circuit 7 is used
In to silicon-controlled 6 offer trigger pulse electric current；
It is provided with optocoupler between the dynamic current holding circuit 9 and control module 11 and transmits control circuit 10, this optocoupler
It transmits control circuit 10 and enabled dynamic current holding circuit 9 is determined the need for according to starting current size；
The control module 11 generates trigger pulse electricity according to alternating current zero cross signal to control silicon controlled control circuit 7
Stream, and according to the whether enabled dynamic current holding circuit 9 of sensed current signal dynamic adjustment from current detection circuit 4, institute
It states positive light modulation key 13 and negative light modulation key 14 is used to control the delay of trigger pulse electric current to realize the control to silicon-controlled 6 angle of flow
System, the on ＆ off switch 12 are generated and are closed for controlling trigger pulse electric current；
Light luminance contains environmental light brightness information to generate in 22 induced environment of environmental light brightness induction module
Brightness signal, brightness signal is transferred to control module 11 by the central processing module 16, and then adjusts trigger pulse
The delay of electric current is realized the brightness of adjust automatically LED lamp, had both been improved easypro to realize the control to silicon-controlled 6 angle of flow
Adaptive also saves the energy.
One switching power circuit, 1 input terminal is connected to the firewire and zero curve of alternating current, for converting directly mains AC to
It flows low tension and provides electric energy, the Switching Power Supply to control module 11, active rectification amplifying circuit 5, silicon controlled control circuit 7
1 output end of circuit is in series with overvoltage crowbar 2.
Further include humiture induction module 17, for temperature, humidity in induced environment, and by the letter containing humiture information
It number is transferred to central processing module 16, and passes through capacitance touching control screen assembly 15 and shows.
Active rectification amplifying circuit 5 is provided between the current detection circuit 4 and control module 11, when control module 11
It receives the sensed current signal from current detection circuit 4 and is less than setting value so that active rectification amplifying circuit 5 will detect electric current
Size, which is amplified, generates amplified sensed current signal.
The silicon controlled control circuit 7 includes triode T3, the silicon-controlled U1 of optocoupler, resistance R41, triode T3 and resistance
R41 connects and is located between voltage end and ground connection, and the resistance R41 is in parallel with the input terminal of the silicon-controlled U1 of optocoupler, triode T3
Base stage be connected to control module 11,2 output ends of the silicon-controlled U1 of optocoupler are connected respectively to silicon-controlled 6 gate pole and input
End.
It includes operation that the current detection circuit 4, which uses Hall current sensing device U3, the active rectification amplifying circuit 5,
Amplifier U4, PMOS device U9, triode T2, the operational amplifier U4 and PMOS device U9 are arranged in parallel and are respectively positioned on electric current
Between detection circuit 4 and control module 11, the collector and emitter of triode T2 is located at grid and the ground connection of PMOS device U9
Between, and the base stage of triode T2 is connected to control module 11, for receive for amplification and it is normal between the amplification that switches
Selection signal.
It includes PMOS device U6, optocoupler U10 that the optocoupler, which transmits control circuit 10, this PMOS device U6 by resistance with
Source of stable pressure D3 series connection on the basis of 1.25V, the output end of this optocoupler U10 are connected to the gate pole of PMOS device U6, and optocoupler U10's is defeated
Enter end and is connected to control module 11.
Further include camera 18, WIFI module 19, microphone and loudspeaker module 20, the WIFI module 19, microphone
It is connected to central processing module 16 with loudspeaker module 20, can realize amusement and leisure, presentation of information by switch panel.
The present embodiment High reliable intelligent switching device course of work is as follows：As shown in Fig. 2, the switch dress of the present embodiment
It sets including switching power circuit 1, overvoltage crowbar 2, zero cross detection circuit 3, current detection circuit 4, active rectification amplification electricity
Road 5, silicon-controlled 6, silicon controlled control circuit 7, scr promoter current circuit 8, dynamic current holding circuit 9, optocoupler transmit control
Circuit 10 processed, control module 11 are using microcontroller, button 12 and connector 13, and specific circuit diagram please refers to Fig.2,3,4,5.
The input terminal of switching power circuit 1 described in Fig. 5, Fig. 6 connects city's voltage, overvoltage protection described in output end connection figure 3
The input terminal of circuit 2, the mains signal of input first pass through the switching power circuit 1 be filtered and rectification after be depressured it is defeated
Go out 5V constant voltage sources, is microcontroller 11, silicon controlled control circuit 7, active rectification amplifying circuit 5, light after being further depressured
Coupling transmits control circuit 10 and provides power supply.
The input terminal of zero cross detection circuit 3 described in Fig. 3 connects city's voltage, by just antiparallel two infraluminescences inside U2
Diode forms, since alternating current positive half period and negative half-cycle can make one of infrared light-emitting diode shine, and
Make triode ON ground connection, T1 inside U2 go out to obtain high level by the current limliting of R5, R6, nearly 0V is crimped in each periodic alternating current
When, for light emitting diode since pressure drop deficiency causes cut-off to be connected, there have been low levels at T1, and alternating voltages is waited to be more than diode
T1 goes out by restoring high level again when conduction voltage drop, has just obtained the alternating current zero cross signal in each period in cycles.
This is signally attached to the interrupting input foot of Fig. 5 microcontrollers 11, and according to the setting of program, microcontroller 11 was obtaining
By certain delay after zero-signal, the pin by being connected to silicon controlled control circuit 7 described in Fig. 4, which exports high level, makes optocoupler
The input terminal infrared light-emitting diode of silicon-controlled U1 is connected, and the output end of U1 is the silicon-controlled of high voltage, and Fig. 4 institutes can be made after conducting
Show that silicon-controlled 6 obtain reliable trigger signal, the effect of the silicon-controlled U1 of optocoupler here is isolation, due to the reference ground of microcontroller 11
Reference ground not equal to silicon-controlled 6, so microcontroller 11 can not directly drive silicon-controlled 6.
The L of alternating current is through overcurrent sensing circuit 4 in Fig. 3, and silicon-controlled 6, L ' is drawn, load 14 is connected between L ' and N, this
A basic access is constituted, 14 acquisition electric currents are loaded when controlled silicon conducting and are lit, but if load 14 is LED light
It is inductive load since LED lamp is mostly Switching Power Supply when tool, when current switching when power is larger makes silicon-controlled hold
It is unexpected by excessively high inverse electromotive force to open.Another problem of elementary path be when bearing power factor is poor electric current and
Input voltage there are certain phase shift, even if it is silicon-controlled obtain it is enough if the pressure difference at reliable trigger signal both ends, but due to triggering
Electric current not enough and cause it is silicon-controlled can not normal reliable open, flicker, the present invention in for both of these problems at load
Scr promoter current circuit 8 described in Fig. 4 in parallel, R20 and C7 constitute a buffer, absorb 14 switching process of inductive load
In inverse electromotive force, while also providing starting current for silicon-controlled 6 conducting moment, make silicon-controlled 6 smoothly conductings, due to C7
It is the capacitance of nanofarad range, so the influence of power factor (PF), traditional controllable silicon dimmer will not be come to the load-strap of high power factor
Another situation that can be encountered is that electric current when Switching Power Supply works in LED lamp is non-linear discrete pulse, in electric current arteries and veins
Punching in the lowest point when electric current cause to accidental switch off less than the maintenance electric current of silicon-controlled minimum, flicker, when bearing power compared with
Hour, load current be less than silicon-controlled extinction current also result in it is silicon-controlled accidental switch off, the present invention is for this problem
Loading 14 both ends parallel connection, one dynamic current holding circuit 9 shown in Fig. 3 comprising reduction voltage circuit, electric bridge J3, Hall electricity
Flow sensing device U12, the full-wave rectification amplifying circuit centered on amplifier U11, source of stable pressure D3, NMOS device on the basis of 1.25V
Part U7 and capacitance C8, the reduction voltage circuit for providing constant low-voltage are located at the source of stable pressure on the basis of electric bridge J3 and 1.25V
Between D3, NMOS device U7, the one end NMOS device U7 is connected to silicon-controlled (6), NMOS device U7 by resistance R36 and electric bridge J3
The other end is grounded by resistance R23, R26, and the source of stable pressure D3 on the basis of the 1.25V is located at grid and the ground connection of NMOS device U7
Between, the capacitance C8 is located between the gate pole of NMOS device U7 and the source of stable pressure D3 on the basis of 1.25V, and effect is to delay NMOS
The switch time of device U7 avoids current spike, the full-wave rectification amplifying circuit be located at Hall current sensing device U12 with
Between source of stable pressure D3 on the basis of 1.25V, flowing through the electric current of load while also flowing through Hall current sensing device U12, U12 will feel
After the current signal that should be arrived is converted to voltage signal by the amplification of full-wave rectification amplifying circuit and rectification centered on amplifier U11
It is output to the reference input foot of the source of stable pressure D3 on the basis of 1.25V, it is assumed that the voltage converted all is U, then flows through NMOS device U7
Electric current by formula：
It obtains, so the electric current for flowing through NMOS device U7 is set by U, when I is more than setting electric current, on the basis of 1.25V
The reference input terminal voltage of source of stable pressure D3 increases, and causes the source of stable pressure D3 negative and positive electrode impedances on the basis of 1.25V to be lower, NMOS devices
The gate voltage of part U7 also accordingly reduces, thus I just reduces, and to the constant current value in setting, D4 can protect D3 to make it
Not increased surprisingly by electric current causes to damage, and P-channel MOSFET U6 and optocoupler U10 constitute optocoupler and transmit control circuit 10, due to
Controllable current holding circuit 9 has enough operating currents or is not necessarily to work when without operating current loading 14, so this circuit can
So that silicon-controlled obtain enough maintenance electric currents when needed, while also reducing the loss of itself.
The current measurement circuit 4 described in Fig. 3 is looked next at, U3 here is the Hall current sensing device being isolated, it
Input terminal is connected on silicon-controlled 6, and by hall sensing and internal amplification, the pulsating direct current of output 2/3.3V biasings is connected to list
The analog-to-digital conversion input pin of piece machine 11 is calculated, and converts ratio as 264mV/A, and the floating exported when bearing power is smaller is very
It is small, sampling error can be caused larger, if amplifying circuit is added before being connected to microcontroller 11, can cause be when connect load
Output outranges when 500W, and the present invention devises active rectification amplifying circuit shown in Fig. 25 for this problem, this circuit is by one
The amplifying circuit of a dual operational amplifier composition, P-channel MOSFETU9 and N-P-N triode T2 compositions, T2 are connected to microcontroller
11 common output foot, U9 and T2 form a channel selector, and acquiescence U9 is opened, and the signal of U3 acquisitions conveys after U4 amplifies
It is sampled to microcontroller 11, when microcontroller 11, which samples obtained current value, is greater than the set value certain time, output high level makes U9
Close, the current signal of U3 acquisitions then by U9 is transported to microcontroller 11 without amplification, to enable signal amplification circuit 5 with
Load active accommodation amplification factor improves sampling precision.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of High reliable intelligent switching device, including shell (23), the capacitance plate (24) being mounted on shell (23), zero curve
Connecting terminal, LED hot terminals, alternating current hot terminal, intermediate plate (25) and rear cover (26), the intermediate plate (25)
There is circuit board between rear cover (26), LED hot terminals is for connecting LED lamp (14), the alternating current firewire
Connecting terminal is for connecting alternating current firewire, it is characterised in that：The circuit board include current detection circuit (4), silicon-controlled (6),
Control module (11), zero cross detection circuit (3), environmental light brightness induction module (22)；One capacitance touching control screen assembly (15) is used
It is electrically connected with control module (11) in the central processing module (16) of control capacitance touching control screen assembly (15), the environment bright
Degree induction module (22) is connected to central processing module (16)；It is provided on the intermediate plate (25) and is connect with control module (11)
On ＆ off switch (12), positive and negative light modulation key (13)；The positive and negative light modulation key (13) be used to control the delay of trigger pulse electric current to
Realize that the control to silicon-controlled (6) angle of flow, the on ＆ off switch (12) are generated and closed for controlling trigger pulse electric current；
Zero cross detection circuit (3) input terminal is connected to the firewire and zero curve of alternating current, and the output end of this zero cross detection circuit connects
It is connected to control module (11), for detecting zero information in mains AC, to generate alternating current zero cross signal；
Current detection circuit (4), silicon-controlled (6) are in series between LED hot terminals and alternating current hot terminal,
For detecting real-time current size in alternating current firewire and generating sensed current signal, silicon-controlled (6) are used for current detection circuit (4)
Control flows into the current switching of load；
The zero curve connecting terminal, LED hot terminal are parallel with scr promoter current circuit (8), dynamic current maintains
Circuit (9)；
The scr promoter current circuit (8) includes concatenated resistance R20 and capacitance C7, and capacitance C7 absorbs LED lamp 14 and opens
Inverse electromotive force during pass, while providing starting current to the conducting moment of silicon-controlled (6) and to drive in trigger signal
Under it is silicon-controlled (6) conducting；
Silicon controlled control circuit (7), this silicon controlled control circuit are provided between silicon-controlled (6) and control module (11)
(7) it is used to provide trigger pulse electric current to silicon-controlled (6)；
It is provided with optocoupler between the dynamic current holding circuit (9) and control module (11) and transmits control circuit (10), this light
Coupling transmits control circuit (10) and determines the need for enabled dynamic current holding circuit (9) according to starting current size；
The control module (11) generates trigger pulse electricity according to alternating current zero cross signal to control silicon controlled control circuit (7)
Stream, and according to the whether enabled dynamic current holding circuit of sensed current signal dynamic adjustment from current detection circuit (4)
(9)；
Light luminance contains environmental light brightness information to generate in environmental light brightness induction module (22) induced environment
Brightness signal is transferred to control module (11) by brightness signal, the central processing module (16), and then adjusts triggering arteries and veins
The delay of electric current is rushed to realize the control to silicon-controlled (6) angle of flow.
2. High reliable intelligent switching device according to claim 1, it is characterised in that：The dynamic current holding circuit
(9), the starting current for maintaining silicon-controlled (6) to be connected comprising reduction voltage circuit, electric bridge J3, Hall current sensing device
U12, the full-wave rectification amplifying circuit centered on amplifier U11, the source of stable pressure D3 on the basis of 1.25V, NMOS device U7 and capacitance
C8, the reduction voltage circuit for providing constant low-voltage are located at source of stable pressure D3, NMOS device on the basis of electric bridge J3 and 1.25V
Between U7, the one end NMOS device U7 is connected to silicon-controlled (6) by resistance R36 and electric bridge J3, and the NMOS device U7 other ends pass through
Resistance eutral grounding, the source of stable pressure D3 on the basis of the 1.25V are located between the grid and ground connection of NMOS device U7,
The capacitance C8 is located between the gate pole of NMOS device U7 and the source of stable pressure D3 on the basis of 1.25V, on the basis of flowing through 1.25V
The electric current of source of stable pressure D3 be I, when I is more than setting electric current, the reference input terminal voltage of the source of stable pressure D3 on the basis of 1.25V increases
Add, causes the source of stable pressure D3 negative and positive electrode impedances on the basis of 1.25V to be lower, the gate voltage of NMOS device U7 also accordingly reduces, I
Just thus reduce, to the constant current value in setting.
3. High reliable intelligent switching device according to claim 1, it is characterised in that：One switching power circuit (1) is defeated
Enter end and be connected to the firewire and zero curve of alternating current, for by mains AC be converted into DC low-voltage electricity and to control module (11),
Active rectification amplifying circuit (5), silicon controlled control circuit (7) provide electric energy, and switching power circuit (1) output end is in series with
Overvoltage crowbar (2).
4. High reliable intelligent switching device according to claim 1, it is characterised in that：It further include humiture induction module
(17), it is used for temperature, humidity in induced environment, and gives the signal transmission containing humiture information to central processing module (16),
And it is shown by capacitance touching control screen assembly (15).
5. High reliable intelligent switching device according to claim 1, it is characterised in that：The current detection circuit (4)
Active rectification amplifying circuit (5) is provided between control module (11), when control module (11) is received from current detecting electricity
The sensed current signal on road (4) is less than setting value so that active rectification amplifying circuit (5) is amplified life by size of current is detected
At amplified sensed current signal.
6. High reliable intelligent switching device according to any one of claims 1 to 4, it is characterised in that：It is described controllable
Silicon control circuit (7) includes that triode T3, the silicon-controlled U1 of optocoupler, resistance R41, triode T3 and resistance R41 connect and be located at electricity
Between pressure side and ground connection, the resistance R41 is in parallel with the input terminal of the silicon-controlled U1 of optocoupler, and the base stage of triode T3 is connected to control
Module (11), 2 output ends of the silicon-controlled U1 of optocoupler are connected respectively to the gate pole and input terminal of silicon-controlled (6).
7. High reliable intelligent switching device according to any one of claims 1 to 4, it is characterised in that：The electric current
Detection circuit (4) use Hall current sensing device U3, the active rectification amplifying circuit (5) include operational amplifier U4,
PMOS device U9, triode T2, the operational amplifier U4 and PMOS device U9 are arranged in parallel and are respectively positioned on current detection circuit
(4) between control module (11), the collector and emitter of triode T2 is located between the grid and ground connection of PMOS device U9,
And the base stage of triode T2 is connected to control module (11), for receive for amplification and it is normal between the amplification selection that switches
Signal.
8. High reliable intelligent switching device according to any one of claims 1 to 4, it is characterised in that：The optocoupler
It includes PMOS device U6, optocoupler U10 to transmit control circuit (10), this PMOS device U6 by resistance with it is steady on the basis of 1.25V
Potential source D3 series connection, the output end of this optocoupler U10 are connected to the gate pole of PMOS device U6, and the input terminal of optocoupler U10 is connected to control
Module (11).
9. High reliable intelligent switching device according to any one of claims 1 to 4, it is characterised in that：
Further include camera (18), WIFI module (19), microphone and loudspeaker module (20), the WIFI module (19), wheat
Gram wind and loudspeaker module (20) are connected to central processing module (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390889.9A CN105338686B (en) | 2014-08-09 | 2014-08-09 | High reliable intelligent switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390889.9A CN105338686B (en) | 2014-08-09 | 2014-08-09 | High reliable intelligent switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105338686A CN105338686A (en) | 2016-02-17 |
| CN105338686B true CN105338686B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410390889.9A Expired - Fee Related CN105338686B (en) | 2014-08-09 | 2014-08-09 | High reliable intelligent switching device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793372B (en) * | 2016-11-22 | 2024-04-09 | 刘冰冰 | Single live wire capacitive wall touch switch control circuit |
| CN107623972B (en) * | 2017-08-28 | 2024-02-20 | 欧普照明股份有限公司 | Lamp mounting frame, lamp module and lamp |
| CN111293783B (en) * | 2018-12-10 | 2022-03-29 | 杭州萤石软件有限公司 | Intelligent switch and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519872A (en) * | 2003-01-20 | 2004-08-11 | 张若愚 | Intelligent phase splitting control type switch electric appliance in high and low voltages |
| CN201590145U (en) * | 2009-07-31 | 2010-09-22 | 宁波家天下智能系统有限公司 | Intelligent household control system |
| CN201639815U (en) * | 2009-12-28 | 2010-11-17 | 钟敏 | Inductive dimmer switch |
| CN202190442U (en) * | 2011-08-04 | 2012-04-11 | 英飞特电子（杭州）有限公司 | Chopping dimming device |
| CN202565531U (en) * | 2012-05-03 | 2012-11-28 | 赵亮 | Intelligent light controlling system |
| CN202918558U (en) * | 2012-11-10 | 2013-05-01 | 西安博昱新能源有限公司 | LED fluorescent lamp circuit with inductive switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9496782B2 (en) * | 2011-12-22 | 2016-11-15 | B/E Aerospace, Inc. | Digitally-controlled power factor correction circuits, methods and articles of manufacture |
-
2014
- 2014-08-09 CN CN201410390889.9A patent/CN105338686B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519872A (en) * | 2003-01-20 | 2004-08-11 | 张若愚 | Intelligent phase splitting control type switch electric appliance in high and low voltages |
| CN201590145U (en) * | 2009-07-31 | 2010-09-22 | 宁波家天下智能系统有限公司 | Intelligent household control system |
| CN201639815U (en) * | 2009-12-28 | 2010-11-17 | 钟敏 | Inductive dimmer switch |
| CN202190442U (en) * | 2011-08-04 | 2012-04-11 | 英飞特电子（杭州）有限公司 | Chopping dimming device |
| CN202565531U (en) * | 2012-05-03 | 2012-11-28 | 赵亮 | Intelligent light controlling system |
| CN202918558U (en) * | 2012-11-10 | 2013-05-01 | 西安博昱新能源有限公司 | LED fluorescent lamp circuit with inductive switch |
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| CN105338686A (en) | 2016-02-17 |
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Effective date of registration: 20160921 Address after: 201100, 41 floor, building 3, 398 Heqing Road, Minhang District, Shanghai, Applicant after: Lusheng (Shanghai) Technology Co.,Ltd. Address before: 201306, C313, room 6, Lane 1750, LU Hong Gang Road, Nanhui new town, Shanghai, Pudong New Area Applicant before: Lvshi environmental protection technology (Shanghai) Co.,Ltd. |
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