CN107979885A - Ignition device and lighting device - Google Patents
Ignition device and lighting device Download PDFInfo
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- CN107979885A CN107979885A CN201610934320.3A CN201610934320A CN107979885A CN 107979885 A CN107979885 A CN 107979885A CN 201610934320 A CN201610934320 A CN 201610934320A CN 107979885 A CN107979885 A CN 107979885A
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- electric power
- test section
- ignition device
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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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of ignition device and lighting device.Ignition device possesses input unit, output section, test section and control unit.Test section is detected input electric power, and the detection information for the break-make for representing input electric power is exported by photo-coupler.Detection information of the control unit based on test section, controls output power.Output section is insulated with input unit, and control unit insulate with test section, and thus control unit insulate with input unit.Thus, insulated this both sides by ensuring the control unit in the insulation of the output section in main circuit and input unit and control circuit and test section, can be on the premise of the outlet side and the insulating properties of input side for ensuring whole ignition device, by the output power of the break-make control main circuit of input electric power of the control circuit based on ignition device.
Description
Technical field
The present invention relates to ignition device and lighting device, more particularly to the ignition device that output power can be controlled
And lighting device.
Background technology
Be arranged at house or office etc. be used for illuminate lighting device etc. in, in order to make the light source point of lighting device
Lamp, has the lamp circuit be converted to the input electric power for example inputted from source power supply suitable for its light source.In order to ensure user
Security, be set as insulating between the input side and outlet side of lamp circuit.For example, patent document 1 discloses this lighting
Device.
Patent document 1：Japanese Unexamined Patent Publication 2009-134945
In recent years, the light modulation setting and toning setting isotype setting constantly variation of lighting device.In order to be filled to illumination
The pattern put is set for switching, it may be considered that user controls the logical of the input electric power of lighting device such as by switch on wall
It is disconnected, and the break-make for being used for detecting the input electric power is set in lighting device and controls the control circuit of switching accordingly.But
In the prior art, which detects the break-make of the input electric power of lighting device using triode, before and after it altogether without
Insulation.In this way, the insulating properties between the outlet side and input side of lamp circuit entirety may be because that above-mentioned control circuit is damaged, from
And cause user's electric shock etc..
The content of the invention
Such in order to solve the problems, such as, it is an object of the present invention to provide ensuring the insulation of its outlet side and input side
Property on the premise of based on input electric power break-make control output power ignition device and lighting device.
In order to realize the purpose, the ignition device involved by of the invention technical solution possesses：Input unit, receives
Input electric power；Output section, exports output power；Test section, is detected the input electric power, and table is exported by photo-coupler
Show the detection information of the break-make of the input electric power；And control unit, it is described defeated based on the detection information of the test section, control
Go out electric power；The output section is insulated with the input unit, and the control unit insulate with the test section, the thus control
Insulate with the input unit in portion.
Ignition device involved by above-mentioned technical proposal according to the present invention, by ensure the output section in main circuit with it is defeated
Enter control unit and test section in portion's insulation and control circuit to insulate this both sides, can ensure the defeated of whole ignition device
On the premise of the insulating properties for going out side and input side, main circuit is controlled by the break-make of input electric power of the control circuit based on ignition device
Output power.
The present invention a technical solution involved by ignition device in or, it is described in the test section
Photo-coupler is connected in series with diode and at least one resistor, the peak of the pressure voltage of the diode than the input electric power
Threshold voltage is low.
Thus, the break-make of input electric power and output are detected using the series circuit of photo-coupler, diode and resistor
Detection information, can reduce the power consumption of resistor, and export accurate detection information to suppress the malfunction of control circuit.
Or, the diode is transient state suppression in the ignition device involved by a technical solution in the present invention
Diode processed, the pressure voltage of the Transient Suppression Diode is lower than the crest voltage of the input electric power, and than according to the input
The threshold voltage less than the crest voltage that electric power predetermines is high.
Transient Suppression Diode (TVS) has the characteristic of high voltage.By lower than the crest voltage of input electric power and most
The pressure voltage of appropriate selection Transient Suppression Diode, can take into account and reduce power consumption and suppression in the range of measuring close to the crest voltage
The malfunction both sides of control circuit processed.
The present invention a technical solution involved by ignition device in or, it is described in the test section
Photo-coupler and the diode and the series circuit of at least one resistor, further connect with least one capacitor in parallel
Connect.
Thereby, it is possible to make the voltage of test section more stablize, so as to further improve the accuracy of detection information and right
The reliability of the control of output power.
The present invention a technical solution involved by ignition device in or, the test section also have pair
The input electric power carries out the rectification circuit of rectification, and the photo-coupler and the diode and at least one resistor are connected
Circuit is connected the output terminal of the rectification circuit.
Thereby, it is possible to suitable for receiving alternating electromotive force and exporting the ignition device of direct current power.
Or, the control unit has pulsewidth in the ignition device involved by a technical solution in the present invention
Modulation control circuit, detection information of the control circuit for pulse-width modulation based on the test section, generation are used for the output electricity
Power carries out the pulse-width signal of pulsewidth modulation.
Thereby, it is possible to the mode based on the simplicity such as switching manipulation, to the mode of output power switching pulsewidth modulation.
In order to realize the purpose, the lighting device involved by of the invention technical solution possesses above-mentioned technical proposal
Involved ignition device and the light source of the output power lighting based on the ignition device.
Lighting device involved by above-mentioned technical proposal according to the present invention, can ensure the light source side of lighting device with
On the premise of the insulating properties of input side, the illumination of the break-make control light source based on input electric power.
Or, the control unit is based on representing in the lighting device involved by a technical solution in the present invention
The detection information of the break-make of the input electric power, switches over a variety of light illumination modes of the light source.
Thereby, it is possible to based on easy mode such as switching manipulation, a variety of light illumination modes of light source are switched over.
The present invention a technical solution involved by lighting device in or, in a variety of light illumination modes
Between, at least one difference in the light modulation setting and toning setting of the light source.
Thereby, it is possible to based on easy mode such as switching manipulation, light modulation setting and/or toning to light source set into
Row switching.
Or, the light source is at least one in the lighting device involved by a technical solution in the present invention
LED, that is, light emitting diode, based on the direct current power lighting controlled by the control unit.
Thereby, it is possible to the lighting and control suitable for LED light device.
Brief description of the drawings
Fig. 1 be schematically show the present invention first embodiment involved by ignition device and lighting device it is basic
The circuit block diagram of structure.
Fig. 2 is the first concrete example of the test section in the ignition device represented involved by the first embodiment of the present invention
Circuit diagram.
Fig. 3 is the second concrete example of the test section in the ignition device represented involved by the first embodiment of the present invention
Circuit diagram.
Fig. 4 is for the oscillogram to the first concrete example compared with the waveform in test section in the second concrete example.
Fig. 5 is the circuit diagram for representing ignition device and lighting device involved by second embodiment of the present invention.
Fig. 6 is for illustrating that test section detects input electric power in the ignition device involved by second embodiment of the present invention
Break-make exemplary waveforms figure.
Description of symbols：
1 ignition device；2 power supplys；3 light sources；10 input units；20 output sections；30th, 30A, 30B, 30C test section；40 controls
Portion；50 insulation conversion circuits；100 lighting devices.
Embodiment
Illustrate embodiments of the present invention referring to the drawings.Moreover, embodiments described below shows that the present invention
Preferable specific example.Therefore, the numerical value shown by following embodiment, shape, material, structural element, structural element
Allocation position and connection mode etc. be example, without forming limitation of the invention.Therefore, for following embodiment
Structural element among show the present invention upper concept technical solution in do not have record structural element, as any
Structural element explanation.
Moreover, each attached drawing is schematic diagram, might not tightly show.Also, in various figures, for substantial phase
With or equivalent structure add identical mark, the repetitive description thereof will be omitted.Also, in circuit block diagram and circuit diagram, only show
Staple or characteristic key element and its connection relation, and take the circumstances into consideration to omit other element and corresponding connection relation.In addition, on
The parameter value of circuit element, can arbitrarily choose on without especially dated situation according to actual conditions.
(first embodiment)
First, the ignition device 1 and lighting device 100 involved by the first embodiment of the present invention are illustrated using Fig. 1
Basic structure.Fig. 1 is the base for schematically showing ignition device and lighting device involved by the first embodiment of the present invention
The circuit block diagram of this structure.
As shown in Figure 1, ignition device 1 receives electric power from power supply 2, and to 3 output power of light source.That is, lighting device 100 has
Standby ignition device 1 and the light source 3 of the output power lighting based on ignition device 1.Here, power supply 2 is, for example, commercial ac power
Power, but not limited to this or direct current power.Power supply 2 for example can be with the closure of switch to the input electric power of ignition device 1
The correspondingly break-make such as disconnect.Light source 3 is typically the LED (light emitting diode) based on DC voltage or DC current lighting.
As shown in Figure 1, ignition device 1 includes input unit 10, output section 20, test section 30 and control unit 40 as main knot
Structure.Illustrate individually below.
Input unit 10 receives input electric power from power supply 2, and is exported respectively to 20 side of output section and 30 side of test section.Input unit
10 such as can include filter circuit, to improve the antijamming capability of circuit.
Output power of the output of output section 20 for 3 lighting of light source.In fig. 1 it is shown that input unit 10 and output section 20 it
Between possess insulation conversion circuit 50 example, the insulation conversion circuit 50 be used for for example, by AC-DC conversion and/or voltage
Input electric power is converted to output power by conversion, and insulation between input unit 10 and output section 20 is electrically isolated.But
As long as insulating between input unit 10 and output section 20, AC-DC conversion and/or voltage can not also be according to circumstances carried out
Conversion.
Test section 30 is detected the input electric power from input unit 10, is exported by photo-coupler PC1 and represents input
The detection information of the break-make of electric power.Here, photo-coupler PC1 includes the light-emitting component of input terminal and the photo detector of output terminal,
Light-emitting component is, for example, LED (light emitting diode), and photo detector is, for example, optical detector.Thus, photo-coupler PC1 can be realized
Insulation (electric isolution) between input terminal and output terminal.
For example, when test section 30 just receives input electric power from input unit 10, photo-coupler PC1 work, its light-emitting component
The light sent is received by photo detector, so as to detect the input of input electric power.Conversely, in test section 30 not from input unit 10
When receiving input electric power, photo-coupler PC1 does not work, its photo detector does not receive optical signal, so as to detect input electricity
The disconnection of power.
Detection information of the control unit 40 based on test section 30, controls the output power of output section 20.For example, 40 base of control unit
In by test section 30 photo-coupler PC1 output expression input electric power break-make detection information, generate control signal and to
Output section 20 exports, to control output section 20 to the output power of light source 3.
As described above, in ignition device 1, output section 20 is insulated with input unit 10, and based on the exhausted of photo-coupler PC1
Edge acts on, and control unit 40 insulate with test section 30, and thus control unit 40 also insulate with input unit 10.
In the following description, sometimes by input unit 10 to the circuit between output section 20 (in Fig. 1 in ignition device 1
The circuit of upside) be known as main circuit, by the circuit including test section 30 and control unit 40 (downside in Fig. 1 in ignition device 1
Circuit) it is known as control circuit.Ignition device 1 according to the present embodiment, by ensuring the output section 20 in main circuit and input
Portion 10 insulate and the control unit 40 in control circuit and this both sides of the insulation of test section 30, can ensure whole ignition device 1
Outlet side and input side insulating properties on the premise of, by input electric power of the control circuit based on ignition device 1 break-make control
The output power of main circuit.
Illustrate an application of the ignition device 1 and lighting device 100 involved by the first embodiment of the present invention below
Example.The application examples is only used for understanding present embodiment, and the ignition device 1 and lighting device 100 of present embodiment can be also applicable in
In other application example.In this example, power supply 2 is connected with the operation portion (not shown) of for example, switch on wall, and power supply 2 is to input unit
10 input electric power can be with operation of the user to operation portion correspondingly break-make.For example, under the usual state of 3 lighting of light source,
Power supply 2 is to 10 output power of input unit.And when switch on wall is pressed by the user, the input electric power of power supply 2 to input unit 10 breaks
Open.Afterwards with user's operation terminates and switch on wall returns, power supply 2 turns on again to the input electric power of input unit 10.That is, with
User and interrupt a period of time to the input electric power of input unit 10 by switch on wall next time, power supply 2；If user is depressed multiple times
Switch on wall, power supply 2 interrupt multiple to the input electric power of input unit 10.
Test section 30 is detected for the interruption of above-mentioned input electric power, and is represented via photo-coupler PC1 outputs in this
Disconnected detection information.Detection information of the control unit 40 based on test section 30, judges whether input electric power has interruption and interruption
Number, and accordingly generate control signal corresponding with the light illumination mode of light source 3.The output power of output section 20 is based on control unit 40
Control signal and change, thus the light illumination mode of light source 3 is corresponding with user's operation changes.
Like this, detection information of the control unit 40 based on the break-make for representing input electric power, to a variety of light illumination modes of light source 3
Switch over.Thereby, it is possible to based on easy mode such as switching manipulation, a variety of light illumination modes of light source 3 are switched over.
Wherein, can be at least one in its light modulation setting and toning setting between a variety of light illumination modes of light source 3
It is different.Thereby, it is possible to based on easy mode such as switching manipulation, light modulation setting and/or toning to light source 3 are set for
Switching.
(the first concrete example of test section)
Hereinafter, a tool of the test section in the ignition device 1 involved by first embodiment of the invention is illustrated using Fig. 2
Body example.Fig. 2 is the electricity of the first concrete example of the test section in the ignition device represented involved by the first embodiment of the present invention
Lu Tu.
As shown in Fig. 2, in the test section 30A involved by the first concrete example, photo-coupler PC1 and diode ZD1 and extremely
A few resistor R1 is connected in series.Wherein, diode ZD1 is, for example, the zener diodes such as Zener diode, relative to defeated
It is lower than the crest voltage of input electric power with Opposite direction connection, the pressure voltage of diode ZD1 to enter electric power.In this way, diode ZD1 is only defeated
Enter voltage higher than being turned in the case of its pressure voltage, photo-coupler PC1 and the series circuit of diode ZD1 and resistor R1 lead to
Road, photo-coupler PC1 work.
Thus, test section 30A utilizes the series circuit of photo-coupler PC1, diode ZD1 and resistor R1, can either examine
Survey the break-make of input electric power and export detection information, and the ON time of the above-mentioned series circuit of diode ZD1 reductions can be utilized,
So as to reduce the power consumption of diode ZD1 and resistor R1.Here, in order to ensure above-mentioned series circuit is in the peak value electricity of input electric power
It can be turned on during pressure, pressure voltage certain value more than needed lower than the crest voltage of input electric power of diode ZD1 can be made.Particularly
In the case where input electric power is unstable, above-mentioned value increase more than needed can be made, that is, make the pressure voltage of diode ZD1 further
Reduce.In such manner, it is possible to the error detection of test section 30A is reduced as far as, so as to reduce the malfunction of control unit 40.
Wherein, diode ZD1 can be Transient Suppression Diode (TVS), make its pressure voltage than the peak value electricity of input electric power
Force down, and the threshold voltage than being predetermined according to input electric power is high.The threshold voltage is less than the crest voltage of input electric power, can
The crest voltage of input electric power is as closely as possible to be set according to actual conditions.
Transient Suppression Diode has the characteristic of high voltage.For example, it is that effective voltage value (vrms) is in input electric power
In the case of the sinusoidal ac signal of 220V, the pressure voltage of Transient Suppression Diode can be made to be less than the crest voltage of input electric power
That is 311V, and higher than the threshold voltage (such as 300V) according to decisions such as the stability of input electric power.Thus, by than input
The crest voltage of electric power is low and as far as possible close to the pressure voltage of appropriate selection Transient Suppression Diode in the range of the crest voltage,
The malfunction both sides for reducing power consumption and suppressing control circuit can be taken into account.
(the second concrete example of test section)
Hereinafter, another of the test section in the ignition device 1 involved by first embodiment of the invention is illustrated using Fig. 3
Concrete example.Fig. 3 is the second concrete example of the test section in the ignition device represented involved by the first embodiment of the present invention
Circuit diagram.
As shown in figure 3, in the test section 30B involved by the second concrete example, photo-coupler PC1 and diode ZD1 and extremely
A few resistor R1 is connected in series.The above-mentioned series circuit of photo-coupler PC1 and diode ZD1 and resistor R1 with it is above-mentioned
First concrete example is identical or equivalent, in this description will be omitted.And then at least one resistor R2 is set, with above-mentioned series circuit simultaneously
Connection connection.In this way, in the case where pressure voltage of the input voltage less than diode ZD1 is not turned on so as to diode ZD1, input electricity
Thus force flow avoids the situation of zero load, makes input electric power more stable through resistor R2.
Illustrate the effect of the second concrete example following with Fig. 4.Fig. 4 is used for the first concrete example with being examined in the second concrete example
The oscillogram that waveform in survey portion is compared.As shown in figure 4, in the case where setting resistor R2 (the second concrete example), with
The situation for being not provided with resistor R2 (such as first concrete example) is compared, and waveform is more stablized in test section, particularly input electric power
Waveform when relatively low is more stablized.
It is as described above, in parallel relative to the series circuit of photo-coupler PC1, diode ZD1 and resistor R1 by setting
The resistor R2 of connection, can be such that the voltage of test section 30B more stablizes, thus further improve the accuracy of detection information with
And the reliability of the control to output power.
(second embodiment)
In the present embodiment, on the basis of above-mentioned first embodiment, illustrate the ignition device of the present invention being applicable in
In input AC electric power and an example of the situation of output direct current power.Wherein, on identical with first embodiment or equivalent
Structure, omits or briefly describes.
First, the ignition device involved by second embodiment of the present invention is illustrated using Fig. 5.Fig. 5 is to represent the present invention
Second embodiment involved by ignition device and lighting device circuit diagram.Wherein, the circuit element and its ginseng shown in Fig. 5
Number, connection relation, magnitude of voltage etc. are all to illustrate, and are not used in restriction present embodiment.
As shown in figure 5, power supply 2 is AC power, such as output 220V sinusoidal alternating electro-motive forces.Input unit 10 can include by
The filter circuit of capacitor C1, C2 and inductor L1 compositions, main function are to prevent electromagnetic interference.Certainly, input unit 10 also may be used
Not include the filter circuit.
In the main circuit side of present embodiment, rectification circuit DB1 is equipped with the rear class of input unit 10.DB1 pairs of rectification circuit
Alternating electromotive force carries out rectification, to generate direct current power.Here, rectification circuit DB1 is, for example, full-wave rectifying circuit, all-wave ripple is generated
Shape.
In the rear class of rectification circuit DB1, equipped with APFC (effective power factor correction) circuit.Rectification circuit DB1 outputs
Full waveform becomes stable DC power, its voltage is, for example, 410V by APFC circuits.
In the rear class of APFC circuits, changed equipped with isolated form fixed voltage circuit (or isolated form constant-current circuit) as insulation
Circuit 50.The isolated form fixed voltage circuit or isolated form constant-current circuit isolate the high voltage DC power of input side, and export
For the DC voltage or DC current being powered to light source 3.
Insulation conversion circuit 50 rear class, equipped with the output rectifier smoothing circuit conduct including diode D2 and capacitance C3
Output section 20.Certainly, output section 20 can not also include the output rectifier smoothing circuit.In addition, output section 20 can also be equipped with
Resistor R4, resistor R4 are used for partial pressure, to ensure that constant current flows through light source 3.
Light source 3 be, for example, LED light-emitting component, be connected with output section 20, based on output section 20 export direct current power (such as
24V) lighting.Wherein, light source 3 is either a LED light-emitting component or multiple LED being for example connected in series shine
Element.
In the control circuit side of present embodiment, exchange detection isolation conversion circuit conduct is equipped with the rear class of input unit 10
Test section 30C.Test section 30C has the rectification circuit DB2 that rectification is carried out to input electric power.Rectification circuit DB2 can be and master
Structure identical or equivalent the rectification circuit DB1 of circuit side, rectification is carried out to alternating electromotive force, to generate direct current power, is, for example,
Full-wave rectifying circuit.Alternatively, test section 30C can also utilize the rectification circuit DB1 of main circuit side.Here, in order to reduce main electricity
Trackside and the interference of control circuit side, independently there is provided rectification circuit DB1 and rectification circuit DB2.
Test section 30 of the other structures of test section 30C for example with above-mentioned first embodiment, above-mentioned first concrete example
The test section 30B of second concrete examples of test section 30A or above-mentioned is identical.As shown in figure 5, for example, photo-coupler PC1 and diode
The series circuit of ZD1 and resistor R1 are connected the output terminal of rectification circuit DB2.Thereby, it is possible to based on the waveform after rectification
It is detected.In addition, resistor R2 is also attached to the output terminal of rectification circuit DB2, i.e., relative to photo-coupler PC1 and two poles
The series circuit of pipe ZD1 and resistor R1 are connected in parallel.Output waveform thereby, it is possible to cause rectification circuit DB2 is more stablized.
In the rear class of test section 30C, control unit 40 is used as equipped with control circuit for pulse-width modulation (pwm control circuit).The arteries and veins
Wide modulation control circuit is for example realized that, based on the detection information of test section 30C, generation is used for output by MCU (microprocessor)
The output power in portion 20 carries out the pulse-width signal (pwm signal) of pulsewidth modulation.The pulse-width signal is output to isolation
Type constant voltage control circuit (or isolated form fixed current controling circuit), control light source 3 light illumination mode (such as light modulation setting or adjust
Color is set).
For example, detection information of the control circuit for pulse-width modulation based on test section 30C, changes generated pulse-width signal
Duty cycle, thus using the light modulation settings of switch element Q2 toggle lights 3, (such as by 50% brightness to be switched to 100% bright
Degree).The switching not limited to this of the light illumination mode of light source 3, such as in light source 3 by the different LED light-emitting component of multiple glow colors
In the case of composition, can also toggle lights 3 toning setting.
Hereinafter, an example of the specific detection process of test section 30C is illustrated using the waveform shown in Fig. 6.Fig. 6 is to be used to illustrate
The exemplary waveforms figure of the break-make of test section detection input electric power in ignition device involved by second embodiment of the present invention.Its
In, the waveform shown in Fig. 6 is schematical waveform, and actual waveform may be because circuit element characteristic and different.
The top of Fig. 6 shows the waveform for the power input that input unit 10 receives from power supply 2.As shown in the figure, input unit 10 from
Power supply 2 receives sinusoidal alternating electro-motive forces as described above.Wherein, as user is to being, for example, that the operation portion of switch on wall presses behaviour
Make, power input is interrupted.Thereafter, as user terminates push, power input turns on again.
The output waveform of rectification circuit DB2 in test section 30C is shown in the middle part of Fig. 6.As shown in the figure, rectification circuit DB2 is defeated
Go out full waveform obtained from carrying out full-wave rectification to input electric power.Wherein, the pressure voltage of diode ZD1 is less than rectification circuit
The crest voltage of the full waveform of DB2 outputs.Thus, it is resistance to higher than diode ZD1 in the full waveform of rectification circuit DB2 outputs
In the period of pressure value, photo-coupler PC1 is turned on the series circuit of diode ZD1 and resistor R1.On the other hand, in rectification
The full waveform of circuit DB2 outputs is photo-coupler PC1 and diode ZD1 in the period below the pressure voltage of diode ZD1
It is not turned on the series circuit of resistor R1.
The lower part of Fig. 6 shows the waveform of photo-coupler PC1.As described above, the full waveform in rectification circuit DB2 outputs is high
In in the period of the pressure voltage of diode ZD1, photo-coupler PC1 is turned on.It is two in the full waveform of rectification circuit DB2 outputs
In period below the pressure voltage of pole pipe ZD1, photo-coupler PC1 is not turned on.Therefore, photo-coupler PC1 is exported as shown in the figure
Detection information export to control unit 40.
Above-mentioned detection information of the control unit 40 based on photo-coupler PC1, judges that photo-coupler PC1 keeps not on-state
Whether time span (such as in Fig. 6 t1 to the time span between t2) is more than operation judges threshold value set in advance.Control unit
40, in the case where being judged as that photo-coupler PC1 keeps the time span of not on-state to be more than threshold value, are judged as due to receiving
User's operation and input electric power interrupts so that switch-over control signal is with the light illumination mode of toggle lights 3.And then control
The number that portion 40 can also be interrupted according to input electric power, specific light illumination mode is switched to by light source 3.
That is, interrupted if the full waveform of rectification circuit DB2 outputs is no because of user's operation, photo-coupler PC1
Should correspondingly it be turned on the frequency of full waveform.Therefore, can be according to the frequency (frequency of the alternating electromotive force of input of full waveform
2 times of rate) the above-mentioned threshold value of setting.Alternatively, it is also possible to according to corresponding with the input electric power interruption as caused by user's operation usual
Time span, is appropriately extended above-mentioned threshold value, to avoid the malfunction of control unit 40.
For example, in the case where input electric power is the alternating current that frequency is 50Hz, above-mentioned threshold value can be set as
220ms.In the case where the time span for the state that photo-coupler PC1 keeps being not turned on is more than 220ms, the switching control of control unit 40
Signal processed.In the case where the time span for the state that photo-coupler PC1 keeps being not turned on is below 220ms, control unit 40 is not
Switch-over control signal.The power failure for being used to judge to have a power failure alternatively, it is also possible to also set up longer than aforesaid operations judgment threshold judges threshold
It is worth (such as 1.7s).In the case where the time span for the state that photo-coupler PC1 keeps being not turned on is more than power failure judgment threshold,
Control unit 40 is judged as having a power failure, not switch-over control signal.
As shown in the waveform of Fig. 6, in above-mentioned control circuit side, the diode ZD1 of test section 30C is as steamed bun ripple to square wave
Conversion circuit plays a role, and the photo-coupler PC1 of test section 30C plays a role as square wave isolation circuit, 40 conduct of control unit
Square wave detection circuit plays a role.It by setting photo-coupler PC1 to be used as square wave isolation circuit, can detect the square wave of rear class
Circuit and the steamed bun ripple of prime to circuit and square-wave insulate (electric isolution).According to the present embodiment, can be suitable for receiving alternating current
Power and the situation for exporting direct current power.Thereby, it is possible to suitable for using AC commercial electric power carry out LED light device lighting and
Situations such as control.
Several embodiments of the invention is explained above, but the invention is not restricted to the above embodiment, can also be carried out
Following change.
In the respective embodiments described above, the example that light source 3 is made of LED light-emitting component is illustrated.But light-emitting component
Can utilize the EL element such as semiconductor light-emitting elements or organic EL (electroluminescent) and inorganic EL such as semiconductor laser or
Person's others solid-state light emitting element.
In addition, by those skilled in the art it is conceivable that various modifications be suitable for each embodiment obtained from side
Formula or the structural element in each embodiment and function are carried out in the range of the technological thought of the present invention is not departed from
The mode for being combined and realizing, is included in the present invention.
Claims (10)
1. a kind of ignition device, it is characterised in that possess：
Input unit, receives input electric power；
Output section, exports output power；
Test section, is detected the input electric power, and the inspection of the break-make of the input electric power is represented by photo-coupler output
Measurement information；And
Control unit, based on the detection information of the test section, controls the output power；
The output section is insulated with the input unit, and the control unit insulate with the test section, thus the control unit
Insulate with the input unit.
2. ignition device as claimed in claim 1, it is characterised in that
In the test section, the photo-coupler is connected in series with diode and at least one resistor, the diode
Pressure voltage is lower than the crest voltage of the input electric power.
3. ignition device as claimed in claim 2, it is characterised in that
The diode is Transient Suppression Diode, and the pressure voltage of the Transient Suppression Diode is more electric than the peak value of the input electric power
Force down, and the threshold voltage less than the crest voltage than being predetermined according to the input electric power is high.
4. ignition device as claimed in claim 2 or claim 3, it is characterised in that
In the test section, the photo-coupler and the diode and the series circuit of at least one resistor, further
It is connected with least one capacitor in parallel.
5. the ignition device as any one of claim 2 to 4, it is characterised in that
The test section also has the rectification circuit that rectification is carried out to the input electric power,
The series circuit of the photo-coupler and the diode and at least one resistor is connected the rectification circuit
Output terminal.
6. the ignition device as any one of claim 1 to 5, it is characterised in that
The control unit has control circuit for pulse-width modulation, detection letter of the control circuit for pulse-width modulation based on the test section
Breath, generation are used for the pulse-width signal that pulsewidth modulation is carried out to the output power.
7. a kind of lighting device, it is characterised in that possess：
Ignition device any one of claim 1 to 6；And
The light source of output power lighting based on the ignition device.
8. lighting device as claimed in claim 7, it is characterised in that
Detection information of the control unit based on the break-make for representing the input electric power, to a variety of light illumination modes of the light source into
Row switching.
9. lighting device as claimed in claim 8, it is characterised in that
Between a variety of light illumination modes, at least one difference in the light modulation setting and toning setting of the light source.
10. the lighting device as any one of claim 7 to 9, it is characterised in that
The light source is at least one LED, that is, light emitting diode, based on the direct current power lighting controlled by the control unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934320.3A CN107979885B (en) | 2016-10-25 | 2016-10-25 | Lighting device and illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934320.3A CN107979885B (en) | 2016-10-25 | 2016-10-25 | Lighting device and illumination device |
Publications (2)
| Publication Number | Publication Date |
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| CN107979885A true CN107979885A (en) | 2018-05-01 |
| CN107979885B CN107979885B (en) | 2022-02-11 |
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| CN201610934320.3A Active CN107979885B (en) | 2016-10-25 | 2016-10-25 | Lighting device and illumination device |
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| Publication number | Publication date |
|---|---|
| CN107979885B (en) | 2022-02-11 |
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