CN108882429A - Ignition device and lighting system - Google Patents
Ignition device and lighting system Download PDFInfo
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- CN108882429A CN108882429A CN201710340364.8A CN201710340364A CN108882429A CN 108882429 A CN108882429 A CN 108882429A CN 201710340364 A CN201710340364 A CN 201710340364A CN 108882429 A CN108882429 A CN 108882429A
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- ignition device
- 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]
-
- 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]
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of ignition device by being operable to switching lighting state to switch on wall and being able to suppress the generation to delay work is provided.Ignition device (20) is provided input electric power, and provides output power to first light source (11) and second light source (12), and ignition device (20) has：Switching circuit (70) switches over the ratio for the output power for being provided respectively to first light source (11) and second light source (12)；First circuit (50) is entered input voltage corresponding with input electric power, exports after postponing control voltage corresponding with input voltage relative to input voltage；Control circuit (80), it is entered control voltage, the value of control voltage in the case where being reduced according to input electric power, control switch circuit (70), the time constant of the first circuit (50) are big in the case where rising in the case where input voltage is reduced than input voltage.
Description
Technical field
The present invention relates to ignition device and has the lighting system of the ignition device.
Background technique
It can be carried out in lighting and the luminaire turned off the light by switch on wall in previous, by switch on wall
Operation, is known to make the changed technology of lighting state of luminaire as defined in carrying out.For example, in patent document 1
Disclosed technology is, in having White LED (Light Emitting Diode) and the luminaire of yellow led, in Jiang Qiang
After wall switch is switched to off-state (that is, off state) from on-state (that is, on state), by the appointed time
It is switched to on-state, again to switch over to the LED of lighting.In this way, in the luminaire disclosed in patent document 1, energy
Enough side's lightings selectively made among White LED and yellow led.In other words, it is illuminated disclosed in patent document 1
In utensil, by being operated to switch on wall, switches over, can be adjusted so as to the illuminant colour to luminaire
Color.
(existing technical literature)
(patent document)
1 Japanese Unexamined Patent Publication 2016-189344 bulletin of patent document
However, providing luminaire because of of short duration power failure etc. in the luminaire documented by patent document 1
, then can be identical as above-mentioned the case where having carried out operation to switch on wall in the case that voltage changes, occur to illuminant colour
Switch over the problem of delaying work.
Summary of the invention
Therefore, the purpose of the present invention is to provide one kind by being operable to cut lighting state to switch on wall
It changes and is able to suppress the ignition device of the generation to delay work and have the lighting system of the ignition device.
To achieve the goals above, ignition device involved in a form of the invention is provided input electric power, and will
Output power is provided to first light source and second light source, and the ignition device has：Switching circuit, it is described to being provided respectively to
The ratio of the output power of first light source and the second light source switches over；First circuit is entered and the input
The corresponding input voltage of electric power makes control voltage corresponding with the input voltage relative to defeated after input voltage delay
Out；And control circuit, it is entered the control voltage, the control voltage in the case where reducing according to the input electric power
Value, control the switching circuit, the time constant of first circuit, in the case where the input voltage reduces, than institute
It states big in the case that input voltage rises.
Also, in order to reach above-mentioned purpose, lighting system involved in a form of the invention has：It is described above
Ignition device, the first light source and the second light source.
In accordance with the invention it is possible to provide one kind by being operable to switching lighting state to switch on wall, and can press down
It makes the ignition device of the generation to delay work and has the lighting system of the ignition device.
Detailed description of the invention
Fig. 1 is the electricity for showing an example of circuit composition for ignition device and lighting system involved in embodiment
Lu Tu.
Fig. 2 is the circuit diagram that the circuit for the ignition device and lighting system for showing comparative example is constituted.
Fig. 3 is CLK voltage and the VCC shown in the control circuit of ignition device involved in embodiment in mode
The chart of the time waveform example of voltage.
Fig. 4 is the electricity for showing an example of circuit composition for ignition device and lighting system involved in embodiment
Lu Tu.
Fig. 5 A be show ignition device involved in embodiment input voltage rise in the case where the first circuit
The circuit diagram of equivalent circuit.
Fig. 5 B be show ignition device involved in embodiment input voltage reduce in the case where the first circuit
The circuit diagram of equivalent circuit.
Fig. 6 is the electricity for showing an example of circuit composition for ignition device and lighting system involved in embodiment
Lu Tu.
Specific embodiment
Following with attached drawing, detailed description of embodiments of the present invention.Also, the embodiment party that will be discussed below
Formula is to show a specific example of the invention.Therefore, numerical value, shape shown in the following embodiments and the accompanying drawings, material, composition are wanted
Element, the configuration of constituent element and connection type etc. are an example, and purport is not to limit the invention.Cause
This, shows in the technical solution of upper concept of the invention among the constituent element in the following embodiments and the accompanying drawings and does not record
Constituent element, illustrate as arbitrary constituent element.Also, each figure is ideograph, not rigorous diagram.Also,
Identical symbol is assigned for identical component parts in each figure.
(embodiment 1)
Ignition device involved in embodiment 1 and lighting system are illustrated.
[composition of 1-1. ignition device and lighting system]
It is illustrated using composition of the attached drawing to ignition device involved in present embodiment and lighting system.
Fig. 1 is to show the example that ignition device 20 involved in present embodiment and the circuit of lighting system 10 are constituted
The circuit diagram of son.Also, it is also shown in Fig. 1 to lighting system 10 and provides the power supply 14 of electric power, for making lighting system 10
Lighting or the power switch 15 turned off the light.Power supply 14 is, for example, the systems electricity such as source power supply of alternating current that output voltage is 100V
Source.
Power switch 15 is the switch for being arranged on electric power the electric wire provided from power supply 14 to lighting system 10.In power supply
In the case that switch 15 is on-state, electric power is provided from power supply 14 to lighting system 10, is off-state in power switch 15
In the case where, it provides and is ended from power supply 14 to the electric power of lighting system 10.It can for example use and be set as power switch 15
Set the so-called switch on wall etc. on the wall of the buildings such as house.
Lighting system 10 is the system for being switched to lighting state or state of turning off the light by power switch 15.Lighting system 10
Have：Ignition device 20, first light source 11 and second light source 12.
First light source 11 and second light source 12 are the light source for generating the injection light of lighting system 10 respectively.First light source 11
And second light source 12 for example has the multiple LED being connected in series, the direct current electroluminescence provided by conversion circuit 40.In this reality
It applies in mode, second light source 12 is different from the illuminant colour of first light source 11.For example, first light source 11 projects colour temperature 5000K or so
Cool colour (naturally white) light, second light source 12 projects the light of the warm colour (electric ball color) of colour temperature 2700K or so.
Ignition device 20 is provided input electric power and provides output power to first light source 11 and second light source 12
Device.As shown in Figure 1, ignition device 20 has：Switching circuit 70, the first circuit 50 and control circuit 80.In this embodiment party
In formula, ignition device 20 is further equipped with：Rectification circuit 21, smoothing capacity device 22, resistance unit 23,24,25 and 26, Yi Jizhuan
Change circuit 40.
Switching circuit 70 is to switching over respectively to the ratio that first light source 11 and second light source 12 provide output power
Circuit.In the present embodiment, switching circuit 70 has：First switch 71 and second switch 72.First switch 71 be with
First light source 11 is connected in series and according to the first switching signal from control circuit 80, to on-state or off-state into
The switch of row switching.Second switch 72 is connected in series with second light source 12 and according to the second switching from control circuit 80
The switch that signal switches over on-state or off-state.It can for example be adopted as first switch 71 and second switch 72
With MOSFET (Metal-Oxide Semiconductor Field-Effect Transistor).In this case, first
Switching signal and the second switching signal are respectively inputted to the gate terminal of first switch 71 and second switch 72.By adopting
With this switching circuit 70, cut so as to the respective lighting to first light source 11 and second light source 12 or turn off the light
It changes.Therefore, the lighting state of lighting system 10 can be switched to either one or two of following three kinds of lighting state, three kinds of lightings
State refers to, only makes the first lighting state of 11 lighting of first light source, makes the 12 both sides' lighting of first light source 11 and second light source
The second lighting state and only make the third lighting state of 12 lighting of second light source.The light difference projected from lighting system 10
To be Neutral colour (colour temperature about 3500K) in the light that the first lighting state is warm colour (colour temperature about 2700K), in the second lighting state
Light, third lighting state be cool colour (colour temperature about 5000K) light.
It as previously discussed, can with a simple configuration, to being supplied to by switching circuit 70 involved in present embodiment
The ratio of the output power of first light source 11 and second light source 12 switches over.Also, it is illuminated involved in present embodiment
System 10 is switched over by switching over to lighting state so as to the illuminant colour to lighting system 10.That is, illuminating
System 10 thus allows for mixing colours by operating power switch 15.
First circuit 50 is the circuit for being entered input voltage corresponding with input electric power, and is made corresponding with input voltage
Control voltage relative to input voltage delay after export.In the first circuit 50, input voltage has been entered from node N1, and from
Conversion circuit 40 is entered the voltage generated from input voltage, and the node N1 is the output of the hot side of rectification circuit 21
Terminal.Also, the first circuit 50 will control power supply terminal VCC of the voltage output to control circuit 80.About the first circuit 50
Detailed operation waits for aftermentioned.First circuit 50 has：Controlling power circuit 510, delay circuit 520 and the second rectifier cell 54.
Controlling power circuit 510 has first capacitor unit 51.Delay circuit 520 has：Second capacitor cell 52 and the first rectification
Element 53.
First capacitor unit 51 is the capacitor cell for being applied voltage corresponding with input voltage.Second capacitor cell 52 is
It is applied the capacitor cell of the voltage generated from input voltage.Also, here, from input voltage generate voltage can be with it is defeated
Enter the corresponding voltage of voltage.Electrolytic capacitor can be for example used as first capacitor unit 51 and the second capacitor cell 52.
In the present embodiment, the capacity of the second capacitor cell 52 is bigger than first capacitor unit 51.For example, first capacitor unit 51 and
The capacity of second capacitor cell 52 can be respectively 10 μ F or so and 30 μ F or so.
The terminal of the hot side of first capacitor unit 51 is connect in node N3 with the terminal of a side of resistance unit 25,
And it is also connect with the power supply terminal VCC of control circuit 80.The terminal of the hot side of second capacitor cell 52 is connect with node N4,
Node N4 is the tie point of the first rectifier cell 53 and the second rectifier cell 54.First capacitor unit 51 and the second capacitor list
The terminal ground of the low potential side of member 52.
First rectifier cell 53 be one end and the other end respectively with first capacitor unit 51 and the second capacitor cell 52
The rectifier cell of connection makes to flow through from the second capacitor cell 52 to the electric current of first capacitor unit 51, without making from first capacitor
Unit 51 is flowed through to the electric current of the second capacitor cell 52.As the first rectifier cell 53, such as diode can be used.First is whole
The cathode terminal and anode terminal of fluid element 53 are connect with node N3 and node N4 respectively.
Second rectifier cell 54 is the rectifier cell being connected in series with the second capacitor cell 52, is made from conversion circuit 40 to the
The electric current of two capacitor cells 52 flows through, and flows through without making from the second capacitor cell 52 to the electric current of conversion circuit 40.In such manner, it is possible to
The charge for being accumulated in the second capacitor cell 52 is inhibited to flow out to conversion circuit 40.As the second rectifier cell 54, such as can
Using diode.The cathode terminal and anode terminal of second rectifier cell 54 respectively with node N4 and resistance unit 26 one
End connection.
Control circuit 80 is to be entered control voltage from the first circuit 50, and the control in the case where being reduced according to input electric power
The value of voltage processed is come the circuit that is controlled switching circuit 70.Control circuit 80 is for example by micro computer (microcomputer) Lai real
It is existing.Micro computer is processor (CPU), the timer, imput output circuit for having the ROM, RAM for housing program, executing program
Deng single-chip semiconductor integrated circuit.Control circuit 80 has：Clock terminal CLK, ground terminal GND, power supply terminal
VCC, drive terminal DRV, the first switched terminal SW1 and the second switched terminal SW2.
Clock terminal CLK is the terminal for voltage input corresponding with the voltage of node N1, for to ignition device 20
The reduction of input voltage detected, and measure the reduction time of input voltage.Ground terminal GND is for making control circuit
The terminal of 80 ground connection.Power supply terminal VCC is the terminal for controlling voltage input.It is input into the control voltage of power supply terminal VCC
For being switched over to switching circuit 70.Drive terminal DRV is the letter exported for driving the switch element 41 of conversion circuit 40
Number terminal.First switched terminal SW1 and the second switched terminal SW2 be respectively to first switch 71 and second switch 72 into
The terminal of row control, exports the first switching signal and the second switching signal respectively.Rectification circuit 21 is to from power supply 14
The circuit that input electric power is rectified.Diode bridge can be for example used as rectification circuit 21.
Smoothing capacity device 22 is to the element that there is the voltage of pulsation to be smoothed exported from rectification circuit 21.Smoothly
Two terminals of capacitor 22 are connect with two output terminals of rectification circuit 21 respectively.For example can as smoothing capacity device 22
Using electrolytic capacitor.
Resistance unit 23 and 24 is the element for being divided to the voltage after being smoothed by smoothing capacity device 22.Electricity
Resistance unit 23 and 24 is connected in series, and the voltage in tie point (node N2) of the resistance unit 23 with resistance unit 24 is defeated
Enter the clock terminal CLK to control circuit 80.Each resistance value of resistance unit 23 and 24, according to the output of power supply 14 electricity
Pressure and control circuit 80 clock terminal CLK required for voltage and be determined.The resistance value example of resistance unit 23 and 24
It is such as respectively 1000k Ω and 30k Ω or so, in the case where ignition device 20 provides the voltage of AC100V by power supply 14,
There are about the voltage inputs of 4V by clock terminal CLK.
Resistance unit 25 and 26 is the protective resistance for reducing the electric current flowed to the first circuit 50.Resistance unit 25
A side and another party terminal respectively with the terminal (node N1) of the hot side of smoothing capacity device 22 and the first circuit
50 connections.One side of resistance unit 26 and the terminal of another party are connect with conversion circuit 40 and the first circuit 50 respectively.Electricity
The resistance value of unit 25 and 26 is hindered for example more than 100k Ω, the left and right 1000k Ω or less.
Conversion circuit 40 be will by rectification circuit 21 rectify, by smoothing capacity device 22 smooth after direct current be converted to it is defeated
Electric power out, and the circuit provided to first light source 11 and second light source 12.In the present embodiment, conversion circuit 40 is flyback
The DC/DC converter of type.Conversion circuit 40 has：Switch element 41, transformer 42, rectifier cell 43 and capacitor cell 44.
Switch element 41 is the element for copped wave, with duty ratio corresponding with required output power, is repeated and connects
The switching of logical state and off-state.Switch element 41 according to the drive terminal DRV from control circuit 80 output signal,
It is switched to on-state or off-state.As switch element 41, for example, by using MOSFET.From the defeated of drive terminal DRV
Signal is input into the gate terminal of switch element 41 out.
Transformer 42 has primary coil 42a, secondary coil 42b, ancillary coil 42c.Transformer 42 is will be by switch member
The energy of electric current after part 41 is chopped into is transmitted to the induction of secondary coil 42b and ancillary coil 42c from primary coil 42a
Device.Primary coil 42a and switch element 41 are connected in series.Ancillary coil 42c is for applying a voltage to the first circuit 50
The voltage generated from input voltage is applied to the first circuit 50 via resistance unit 26 by inductor.
Rectifier cell 43 is the element rectified to the electric current for being flowed into conversion circuit 40.Rectifier cell 43 and transformer
42 secondary coil 42b is connected in series.The electric power being rectified is provided to first light source 11 and the second light as output power
Source 12.Capacitor cell 44 is the unit smoothed to the output power of conversion circuit 40.In the present embodiment, as electricity
Electrolytic capacitor can be used by holding unit 44.
[1-2. work]
The work of ignition device 20 and lighting system 10 involved in present embodiment is illustrated.Below in order to say
The effect of ignition device 20 involved in bright present embodiment, on one side compares the ignition device of comparative example and lighting system
Compared with being described with reference to the accompanying drawings on one side.
Fig. 2 is the circuit diagram that the circuit for the ignition device 920 and lighting system 910 for showing comparative example is constituted.Such as Fig. 2 institute
Show, ignition device 20 involved in the ignition device 920 and lighting system 910 and present embodiment of comparative example and illumination are
The difference of system 10 is the first circuit 950, other places are consistent.First circuit 950 of comparative example does not have the second capacitor cell
52 and first rectifier cell 53, the second rectifier cell 54 connect with node N3.That is, the first circuit 950 of comparative example does not have
Delay circuit 520.The work of ignition device 20 involved in present embodiment is illustrated.
In ignition device 20, defined operation is carried out to power switch 15 by user, so that lighting state can be by
It is switched to either one or two of the first above-mentioned lighting state, the second lighting state and third lighting state.This it is defined operation with
It is referred to as state handover operation down.Specifically, state handover operation refers to, power switch 15 is cut from on-state in user
It is changed to after off-state, within the defined limitation time, the operation of on-state is switched to from off-state.Herein, it is specified that
The limitation time be, for example, 1 second or so.For example, passing through state handover operation if ignition device 20 is the first lighting state
It can be switched to the second lighting state.Equally, if ignition device 20 is the second lighting state, pass through state handover operation,
It can be switched to third lighting state, it, can by state handover operation if ignition device 20 is third lighting state
It is switched to the first lighting state.
In order to realize such work, control circuit 80 to be separately input to clock terminal CLK and power supply terminal VCC
The corresponding voltage of input voltage (CLK voltage) and control voltage (VCC voltage) variation monitored.Control circuit 80
Start timing at the time of the CLK voltage for being input into clock terminal CLK becomes threshold value Vth or less.In the present embodiment, threshold
Value Vth is 1V.Here, the case where situation that CLK voltage is threshold value Vth or less refers to, becomes off-state with power switch 15
It is corresponding.
Control circuit 80 detect CLK voltage become threshold value Vth state below continue for defined time Δ t when,
The VCC voltage for being input into power supply terminal VCC is detected.In the present embodiment, it is specified that time Δ t be, for example,
20msec or so.Control circuit 80 is off voltage Voff or more in the VCC voltage detected and conducting voltage Von is below
In the case of, it is judged as that power switch 15 is switched to on-state again, to switch over to lighting state.That is, first
The first switching signal and second that switch 71 and second switch 72 are exported respectively for switching over to lighting state are cut
Change signal.It in the present embodiment, is that off voltage Voff or more and the region below conducting voltage Von are known as by VCC voltage
Illuminant colour is Zone switched.Off voltage Voff and conducting voltage Von is for example 10V or so and 15V or so respectively.
Also, control circuit 80 is detecting that CLK voltage is that threshold value Vth state below continue for defined time Δ t
When in the case that the VCC voltage that detects becomes resetting voltage Vrst or more and insufficient off voltage Voff, be judged as state
Handover operation does not carry out, to not change lighting state.Such case is for example equivalent to, in power switch 15 from on-state
It is switched to after off-state, the situation longer than the defined time of time until being switched to on-state again.
In the present embodiment, the region by VCC voltage for resetting voltage Vrst or more and insufficient off voltage Voff is known as illuminant colour
Maintain region.Resetting voltage Vrst is, for example, 2V or so.
Also, control circuit 80 is detecting that CLK voltage is that threshold value Vth state below continue for defined time Δ t
When the VCC voltage that detects for insufficient resetting voltage Vrst in the case where, lighting state is resetted.That is, control circuit
80 return to original state the lighting state of ignition device 20.Such case is equivalent to, and power switch 15 is maintained at abundant
The case where prolonged off-state.Above-mentioned original state can be determined as the first lighting state, the second lighting state and
An arbitrary lighting state in three lighting state.In the present embodiment, by the area of VCC undertension resetting voltage Vrst
Domain is known as reset region.In addition, stopping timing in the case where control circuit 80 is judged as that CLK voltage is bigger than threshold value Vth.
Also, even if control circuit 80 is also controlled with involved in present embodiment in the ignition device 920 of comparative example
Circuit 80 is similarly worked.However, ignition device 20 involved in the ignition device 920 of comparative example and present embodiment
Difference is the composition of the first circuit 950, therefore different from the work of ignition device 20 involved in present embodiment.
Below based on work example, to the ignition device 920 of ignition device 20 involved in present embodiment and comparative example
Work be illustrated.Fig. 3 is shown in the control circuit 80 of ignition device 20 involved in present embodiment in mode
The chart of the time waveform example of CLK voltage and VCC voltage.The time waveform example of CLK voltage and VCC voltage is respectively by Fig. 3
Chart (a) and chart (b) solid line indicate.In addition, in Fig. 3, the CLK voltage of the ignition device 920 of comparative example and
The time waveform example of VCC voltage is represented by the dotted line.
In work example shown in Fig. 3, firstly, T0 at the time of Fig. 3, power switch 15 is switched to connect from off-state
Logical state.Accordingly, rise along with the rising of the input voltage in node N1, CLK voltage and VCC voltage.Immediately in the moment
After T0, even if in any one of present embodiment and comparative example ignition device, since first capacitor unit 51 is electrically charged,
According to the time constant that the capacity by first capacitor unit 51 determines, CLK voltage and VCC voltage are gradually increasing.In addition, at this
In ignition device 20 involved in embodiment, the second capacitor cell 52 of the first circuit 50 is also electrically charged.Here, the first circuit
50 have the first rectifier cell 53, one end of first rectifier cell 53 and the other end respectively with first capacitor unit 51 and
The connection of second capacitor cell 52, makes to flow through from the second capacitor cell 52 to the electric current of first capacitor unit 51, without making from first
Capacitor cell 51 is flowed through to the electric current of the second capacitor cell 52.Therefore, in the case where input voltage rises, due to the first rectification
Element 53 is connected to node N3, and node N3 is higher than the voltage of node N4, therefore can be real between node N3 and node N4
It is considered as disconnecting in matter.Therefore, control voltage (the i.e. VCC electricity that the first circuit 50 involved in the present embodiment exports
Pressure), the case where not connecting the second capacitor cell 52 with node N1, is similarly changed.That is, the feelings risen in input voltage
Under condition, the time constant of the first circuit 50, is substantially only determined by first capacitor unit 51 involved in present embodiment, because
This, it is substantially identical as the time constant of the first circuit 950 of comparative example.The ignition device 20 involved in present embodiment
In, the second capacitor cell 52 is charged by conversion circuit 40.
After these CLK voltages and control voltage stabilization, from moment T1 to moment T4, state handover operation is carried out.
Specifically, power switch 15 is switched to off-state from on-state in moment T1.Accordingly, since input voltage reduces,
Therefore, CLK voltage and VCC voltage also decrease.But in the present embodiment, in the case where input voltage reduces,
I.e. in the case where the voltage of node N1 and node N3 reduce, compared with node N3, node N4 becomes high potential.In this feelings
Under condition, due to electric current from the second capacitor cell 52 via the first rectifier cell 53, and be flowed into node N3, therefore, the first circuit
50 time constant is different from the time constant of the first circuit 950 of comparative example.That is, the first circuit involved in present embodiment
In the case where input voltage reduces, with the circuit equivalent for being directly connected to the second capacitor cell in node N3.Therefore, the first circuit
50 time constant is determined by first capacitor unit 51 and the second capacitor cell 52 being connected in parallel with first capacitor unit 51
It is fixed.Therefore, in the case where input voltage reduces, the time constant of the first circuit 50 than comparative example the first circuit 950 when
Between constant it is big.In this way, can realize a kind of ignition device with a simple configuration in the present embodiment, which is had
The time constant of the first standby circuit 50 is big in the case where rising in the case where input voltage is reduced than input voltage.
Accordingly, as shown in figure 3, from moment T1 to moment T4, CLK voltage involved in present embodiment and VCC electricity
Pressure compared with the CLK voltage of comparative example and VCC voltage, becomes gentle decline respectively.
Then, the work of the control circuit 80 in the state handover operation from during moment T1 to moment T4 is carried out
Explanation.In moment T1, after power switch 15 is switched to off-state, CLK voltage as shown in figure 3, being opened from voltage Vmax
Begin to decline, in moment T3, CLK voltage becomes threshold value Vth or less.Correspondingly, CLK voltage is detected in control circuit 80
When as threshold value Vth or less, start timing.Later, in moment T4, power switch 15 is switched to connect shape from off-state
State.Therewith, CLK voltage and VCC voltage switch to rise from decline.Here, at the time of have passed through time Δ t from moment T3,
CLK voltage becomes threshold value Vth hereinafter, VCC voltage becomes conducting voltage Von or less and the off voltage Voff or more (hair of Fig. 3
It is photochromic Zone switched).For this purpose, control circuit 80, which is judged as, has carried out state handover operation, lighting state is switched over.That is,
From the first switched terminal SW1 and the second switched terminal SW2 respectively to first switch 71 and second switch 72 output for pair
The first switching signal and the second switching signal that lighting state switches over.
Also, it is also equally that, from moment T1 to moment T4, CLK voltage is gradually decreased in the ignition device of comparative example 920,
In moment T2, CLK voltage becomes threshold value Vth or less.Therefore, from moment T2, control circuit 80 starts timing.Later, from when
T2 is carved at the time of have passed through time Δ t, due to CLK voltage be threshold value Vth hereinafter, VCC voltage be conducting voltage Von or less and
Off voltage Voff or more, therefore, the control circuit 80 of comparative example, which is judged as, has carried out state handover operation, to lighting state into
Row switching.
Also, in each ignition device of present embodiment and comparative example, be significantly later than moment T4 by
In the case that power switch 15 is switched to on-state, becomes threshold value Vth or less in CLK voltage and begun to pass through the defined time
The VCC voltage detected after Δ t, can become off voltage Voff or less.For example, if VCC voltage be resetting voltage more than,
And when deficiency off voltage (illuminant colour of Fig. 3 maintains region), control circuit 80 is not switched over lighting state.If also,
VCC undertension resetting voltage (reset region of Fig. 3), then control circuit 80 resets lighting state.
Then, to during moment T5 to moment T7, the work in the case where instantaneous power failure occurs for power supply 14 is carried out
Explanation.From moment T5 to moment T7, even if instantaneous power failure occurs in power supply 14, also become off-state with by power switch 15
Situation is same, is input into the input electricity of the ignition device 920 of ignition device 20 and comparative example involved in present embodiment
Power reduces, and therewith, the input voltage in node N1 reduces.As shown in figure 3, in the ignition device 920 of comparative example, due to CLK
Voltage and VCC voltage become and hastily decline compared with present embodiment, therefore in moment T6, CLK voltage becomes threshold value
Vth or less.Here, in instantaneous power-off, due to being under normal circumstances that power failure continues tens msec or so, CLK
Voltage is able to maintain that below threshold value Vth more than defined time Δ t (20msec).Also, as shown in figure 3, from moment T6
After have passed through defined time Δ t, VCC voltage becomes off voltage Voff or more and conducting voltage Von or less.Therefore, exist
The ignition device 920 of comparative example is judged when instantaneous power-off occurs to have carried out state handover operation, and is delayed work.
However, the ignition device 20 involved in present embodiment, although at the time of instantaneous power-off has occurred after T5,
It also can CLK voltage and the reduction of VCC voltage along with the reduction of input voltage.But as previously discussed, due to this embodiment party
First circuit 50 of ignition device 20 involved in formula has the second capacitor cell 52 and the first rectifier cell 53, therefore, defeated
Enter voltage reduce in the case where the first circuit 50 time constant be greater than comparative example involved in the first circuit 950 time it is normal
Number.In this way, in the present embodiment, the reduction of CLK voltage and VCC voltage, CLK voltage and VCC voltage with comparative example
Reduction compare than more gentle.Therefore, in the present embodiment, the reduction of CLK voltage is later than comparative example, becomes threshold in moment T7
Value Vth or less.Also, in the present embodiment, in the case where input voltage rises, due to the time constant of the first circuit 50
It is identical as comparative example, therefore as comparative example, CLK voltage can more hastily rise.Accordingly, rule be have passed through from moment T7
CLK voltage after fixed time Δ t is higher than threshold value Vth, so that the timing in control circuit 80 stops.Therefore, control circuit
80 are judged as and do not carry out state handover operation, to not switch over to lighting state.
In this way, in the present embodiment, by reducing input voltage in the case where the first circuit 50 time constant
Value be greater than input voltage rise in the case where value, thus input electric power moment reduce in the case where, can make to be input to
The variation of the voltage of control circuit 80 postpones.Accordingly, it in the ignition device 20 involved in present embodiment, is able to suppress because defeated
Enter electric power it is unstable caused by the generation that delays work.
In addition, being only the electricity big using capacity for first capacitor unit 51 for example in the ignition device of comparative example 920
Hold unit, it will be able to inhibit the above-mentioned generation to delay work.But in the structure of the first capacitor unit 51 using this large capacity
Cheng Zhong, in the case that in the case where power switch 15 is switched to on-state from off-state, i.e. input voltage rises,
The rising of VCC voltage becomes flat.Therefore, in the ignition device of comparative example 920, the starting ratio of the control circuit 80 when lighting
Compared with the cost time.However, the in the case where rising in the ignition device 20 involved in present embodiment due to input voltage
The time constant of one circuit 50 is smaller than the time constant of the first circuit 50 in the case where input voltage reduction, therefore can be quick
Ground starts the control circuit 80 when lighting.That is, ignition device 20 being capable of promptly lighting.
Also, in the present embodiment, since the first circuit 50 has be connected in series with the second capacitor cell 52 second
Rectifier cell 54, therefore be able to suppress and be charged to the charge of the second capacitor cell 52 and flowed out to conversion circuit 40.Therefore, defeated
In the case where entering voltage reduction, the charge of the second capacitor cell 52 is charged to substantially only to 53 effluent of the first rectifier cell
Out, thus can further increase the second capacitor cell 52 time constant increase effect.
Moreover, in the present embodiment, the second capacitor cell 52 is bigger than the capacity of first capacitor unit 51.In this way, passing through
Keep the capacity of first capacitor unit 51 smaller, therefore control circuit 80 of the ignition device 20 in lighting can be further speeded up
Starting.That is, ignition device 20 being capable of quickly lighting.Also, by keeping the capacity of the second capacitor cell 52 bigger, from
And in the case where input voltage reduces, it can further make the reduction delay for the control voltage for being input into control circuit 80,
Therefore, can further suppress because input electric power it is unstable caused by the generation that delays work.
[1-3. effect etc.]
As previously discussed, ignition device 20 involved in present embodiment is provided input electric power, and output power is mentioned
It is supplied to first light source 11 and second light source 12, ignition device 20 has：Switching circuit 70, to being provided respectively to first light source 11
And the ratio of the output power of second light source 12 switches over；First circuit 50 is entered input electricity corresponding with input electric power
Pressure exports after postponing control voltage corresponding with input voltage relative to input voltage；And control circuit 80, it is entered control
Voltage processed, the value of the control voltage in the case where being reduced according to input electric power, the time of control switch circuit 70, the first circuit are normal
Number is big in the case where rising in the case where input voltage is reduced than input voltage.
In this way, in ignition device 20 by changing input electric power, so as to first light source 11 and second light source
12 lighting state switches over.Therefore, in ignition device 20, input electricity is being provided via power switch 15 from power supply 14
In the case where power, by operation power switch 15, so as to be switched over to lighting state.Also, in ignition device 20, lead to
The time constant for crossing the first circuit 50 in the case where reducing input voltage increases, in the case where input electric power is unstable,
Since the variation delay for the control voltage for being input into control circuit 80 can be made, it is able to suppress and is caused because unstable
The generation to delay work.Moreover, the time of the first circuit 50 in the case where ignition device 20 is by rising input voltage
Constant becomes smaller, therefore can be realized quick lighting.As previously discussed, in ignition device 20, the first circuit 50 has：First electricity
Hold unit 51, is applied voltage corresponding with input voltage；Second capacitor cell 52 is applied from input voltage generation
Voltage；And
First rectifier cell 53, one end and the other end respectively with first capacitor unit 51 and the second capacitor cell 52
Connection, makes to flow through from the second capacitor cell 52 to the electric current of first capacitor unit 51, not make from first capacitor unit 51 to second
The electric current of capacitor cell 52 flows through.
Pass through the composition of this first circuit 50, in the case where input voltage rises, the time constant of the first circuit 50
Substantially only determined by first capacitor unit 51, in the case where input voltage reduces, the time constant of the first circuit 50 by
First capacitor unit 51 and the second capacitor cell 52 being connected in parallel with first capacitor unit 51 determine.It therefore, can be with
It is simple to constitute to realize a kind of ignition device, the time constant of the first circuit 50 possessed by the ignition device, in input electricity
It is big in the case where rising in the case that pressure drop is low than input voltage.As previously discussed, in ignition device 20, the second capacitor cell 52
Capacity it is bigger than first capacitor unit 51.
In this way, by making the capacity of first capacitor unit 51 become smaller therefore, ignition device can be further speeded up
The starting of control circuit 80 when 20 lighting.That is, ignition device 20 being capable of more rapidly lighting.Also, by making
The capacity of two capacitor cells 52 becomes bigger, thus, in the case where input voltage reduces, can make to be input into control electricity
The reduction of the control voltage on road 80 further postpones, so as to further suppress because input electric power it is unstable due to caused by accidentally
The generation of work.As previously discussed, in ignition device 20, the first circuit 50 can also have and 52 company of series connection of the second capacitor cell
The second rectifier cell 54 connect.
Hereby it is possible to inhibit outflow of the charge for being charged to the second capacitor cell 52 to conversion circuit 40.Therefore, defeated
In the case where entering voltage reduction, the charge of the second capacitor cell 52 is charged to due to substantially only to the first rectifier cell 53 1
Side outflow, therefore, can further increase the increase effect of the time constant of the second capacitor cell 52.As previously discussed, in point
Lamp device 20, switching circuit 70 have：First switch 71 is connected in series, according to from control circuit 80 with first light source 11
First switching signal, switches over on-state or off-state；And second switch 72, with 12 company of series connection of second light source
It connects, according to the second switching signal from control circuit 80, on-state or off-state is switched over.Hereby it is possible to
It is simple to constitute, to be switched over to the ratio provided to the output power of first light source 11 and second light source 12.Also, this reality
It applies lighting system 10 involved in mode to have, ignition device 20, first light source 11 and second light source 12.Hereby it is possible to realize
Effect same as above-mentioned ignition device 20.Also, lighting system involved in present embodiment, second light source 12 and first
The illuminant colour of light source 11 is different.
Accordingly, by being switched over to lighting state, so as to the photochromic progress to the light projected from lighting system 10
Switching.That is, by operating power switch 15, thus allowing for mixing colours in lighting system 10.
(embodiment 2)
Ignition device involved in embodiment 2 and lighting system are illustrated.Point involved in present embodiment
Lamp device and lighting system have the composition for inhibiting work inhomogenous.Hereinafter, be directed to present embodiment, with embodiment 1
It is illustrated centered on difference.Firstly, using attached drawing to ignition device involved in present embodiment and lighting system
Composition be illustrated.Fig. 4 is the circuit structure for showing ignition device 120 and lighting system 110 involved in present embodiment
At an example circuit diagram.
As shown in figure 4, ignition device 120 and lighting system 110 involved in present embodiment are respectively in the first circuit
It is different from ignition device 20 involved in embodiment 1 and lighting system 10 in 150 composition.Hereinafter, to present embodiment
The composition of related first circuit 150 is illustrated.
As shown in figure 4, the first circuit 150 is with the first circuit 50 involved in embodiment 1 again it is being entered and inputting
The circuit of the corresponding input voltage of electric power, also, make control voltage corresponding with input voltage relative to input voltage delay after
Output.First circuit 150 has：First capacitor unit 51, the second capacitor cell 52, the first rectifier cell 53 and second are whole
Fluid element 54.In the present embodiment, the first circuit 150 is further equipped with：First be connected in parallel with first capacitor unit 51
Resistance unit 55；And the second resistance unit 56 being connected in parallel with the second capacitor cell 52.In other words, in present embodiment
In, the first circuit 150 has controlling power circuit 1510 and delay circuit 1520, and controlling power circuit 1510 has first
Capacitor cell 51 and second resistance unit 55, delay circuit 1520 have the second capacitor cell 52 and second resistance unit
56.In this way, by with first resistor unit 55 and second resistance unit 56, thus by power switch 15 from on-state
In the case where being switched to off-state, it can will be charged to the charge of first capacitor unit 51 and the second capacitor cell 52,
Respectively via first resistor unit 55 and second resistance unit 56, steadily ground connection electric discharge.In this way, due to that can reduce right
Power switch 15 turn off in the case where VCC voltage time waveform it is inhomogenous, therefore, from by power switch 15 from connecing
Logical state is switched to off-state and starts, and required time is not until VCC voltage becomes deficiency resetting voltage Vrst
It is uniform to be reduced.Here, being illustrated using equivalent circuit to the parameter of each constituent element of the first circuit 150.
Fig. 5 A be show ignition device 120 involved in present embodiment input voltage rise in the case where first electricity
The circuit diagram of the equivalent circuit 150A on road 150.Fig. 5 B is the input voltage for showing ignition device 120 involved in present embodiment
The circuit diagram of the equivalent circuit 150B of the first circuit 150 in the case where reduction.
In the case where the input voltage of ignition device 120 rises, since the first rectifier cell 53 is connect with node N3, and
Node N3 is higher than the voltage of node N4, therefore, it can be seen that being substantial disconnection between node N3 and node N4.Therefore,
As shown in Figure 5A, the equivalent circuit 150A of the first circuit 150 is connected in parallel by first capacitor unit 51 and first resistor unit 55
Circuit indicate.Therefore, the timeconstantτ 1 of the first circuit 150 in the case that input voltage rises is, by first capacitor
The capacity of unit 51 is set as C1, the resistance value of first resistor unit 55 is set as R1, then can indicate as follows.
τ 1=C1 × R1
Also, in the case where the input voltage of ignition device 120 reduces, since the first rectifier cell 53 and node N3 connects
It connects, and node N3 lower than the voltage of node N4, therefore, it can be seen that being substantial conducting between node N3 and node N4.
For this purpose, as shown in Figure 5 B, the equivalent circuit 150B of the first circuit 150 is by first capacitor unit 51, first resistor unit 55, second
The circuit that capacitor cell 52 and second resistance unit 56 are connected in parallel indicates.Therefore, in the case where input voltage reduces
The timeconstantτ 2 of first circuit 150 is, the capacity of the second capacitor cell 52 is being set as C2, by the electricity of second resistance unit 56
When resistance value is set as R2, then it can indicate as follows.
τ 2=(C1+C2) × R1 × R2/ (R1+R2)
Here, also same as embodiment 1 in present embodiment, the time constant of the first circuit 150 is, with input voltage
The case where rising, is compared, and input voltage is larger in the case where reducing.That is, the capacity of each capacitor cell and each resistance list
The resistance value of member is configured to, and can make τ 1<τ 2 is set up.For example, the appearance of first capacitor unit 51 and the second capacitor cell 52
Measuring C1 and C2 is respectively 10 μ F or so and 30 μ F or so, the resistance value of first resistor unit 55 and second resistance unit 56
R1 and R2 is respectively 200k Ω or so and 100k Ω or so.By using the first resistor unit 55 with this resistance value
And second resistance unit 56, it is same with ignition device 20 involved in embodiment 1 and lighting system 10 so as to realize
The effect of sample, moreover, can be realized the ignition device 120 for inhibiting work inhomogenous and lighting system 110.
(embodiment 3)
Ignition device involved in embodiment 3 and lighting system are illustrated.Point involved in present embodiment
Lamp device and lighting system have the composition for the reset work that can certainly execute control circuit, that is, having can be certainly
Reduce the composition of control voltage.Hereinafter, being illustrated centered on 2 difference of embodiment to present embodiment.Firstly,
It is illustrated using composition of the attached drawing to ignition device involved in present embodiment and lighting system.Fig. 6 is to show this reality
Apply the circuit diagram for the example that ignition device 220 involved in mode and the circuit of lighting system 210 are constituted.
As shown in fig. 6, ignition device 220 and lighting system 210 involved in present embodiment are respectively in the first circuit
It is different from ignition device 120 involved in embodiment 2 and lighting system 110 in 250 composition.Below to this embodiment party
The composition of first circuit 250 involved in formula is illustrated.
First circuit 250 involved in present embodiment has same as the first circuit 150 involved in embodiment 2
Constituent element, and there is the Zener diode 57 being connected in series with first capacitor unit 51.Zener diode 57 is in power supply
In the case that switch 15 is switched to off-state from on-state, make the control voltage exported from the first circuit 250 certainly
It is reduced to the element of insufficient resetting voltage Vrst.
As shown in fig. 6, being to connect power supply 14 in the power switch 15 being connected between power supply 14 and ignition device 220
Among two electric wires of ignition device 220, in the case where the switch of the single cut type turned off to a wherein side, this embodiment party
The effect of Zener diode 57 involved in formula is then more significant.That is, in the case where power switch 15 is the switch of single cut type,
Even if having leakage since the electric wire of a side is connect with power supply 14 and ignition device 220 for off-state in power switch 15
Electric current flows to ignition device 220 from power supply 14.Accordingly, even if power switch 15 is switched to the feelings of off-state from on-state
Under condition, the control voltage exported from the first circuit 250 also has the case where being not reduced to lower than resetting voltage Vrst.
In the present embodiment, in the node N3 connection Zener diode 57 of the first circuit 250.Here, by by Zener
The breakdown voltage of diode 57 is set as voltage lower than input voltage, more sufficiently high than resetting voltage Vrst, thus opening power supply
15 are closed as in the case where off-state, the voltage for the node N3 for being applied to the first circuit 250 can be made certainly to be reduced to
Lower than resetting voltage Vrst.Therefore, the ignition device 220 involved in present embodiment, can control circuit 80 certainly
Carry out reset work.
(variation etc.)
Based on each embodiment, the present invention is described above, but the present invention is not by above-mentioned each embodiment party
Formula is limited.
For example, although using AC power source as power supply 14, but can also be used in above-mentioned each embodiment
DC power supply is used as power supply 14.In this case, ignition device 20 may not possess rectification circuit 21 and smoothing capacity
Device 22.Also, the number for the light source that lighting system has not is limited by two, is also possible to three or more.
Also, in above-mentioned each embodiment, although as light source using being illustrated for LED, but, light source
Type not limited by LED.As light source, such as can also be using other optical elements such as organic EL element.
Also, in above-mentioned each embodiment, although first light source 11 and second light source 12 are with different from each other
Illuminant colour, but also can have identical illuminant colour.In this case, such as first light source 11 and second light source 12
It can have light distribution characteristic different from each other.Also, first light source 11 can also be configured in different positions from second light source.
Also, lighting system involved in above-mentioned each embodiment can be incorporated in a framework, be also possible to
Each light source is incorporated in different frameworks.Also, it is also possible to ignition device, each light source is arranged, respectively others
Framework, these frameworks are connected by electric wire each other.
Also, in above-mentioned each embodiment, although switching circuit 70 have can be flowed into first light source 11 with
And the first switch 71 that turns off respectively of the electric current of second light source 12 and second switch 72, still, the structure of switching circuit 70
At not be limited by this.For example, switching circuit 70 can also have the variable resistor element etc. for being connected in series in each light source.
In this case, it is changed by being connected in series to the resistance value of the variable resistance element of each light source, so as to
The ratio for being supplied to the output power of each light source to ignition device switches over.Also, first capacitor unit 51 and the second electricity
Holding unit 52 may not be the elements such as electrolytic capacitor, and can be the capacitor cell using stray capacitance etc..Also, it is each
Resistance unit is also possible to resistive element, can also be resistance unit in electric wire etc..
In addition, without departing from the spirit of the invention, by those skilled in the art it is conceivable that various changes
Shape is implemented in form obtained from each embodiment, or in each embodiment constituent element and function carry out group
Form after conjunction is all contained in the scope of the present invention.
Symbol description
10,110,210 lighting system
11 first light sources
12 second light sources
14 power supplys
20,120,220 ignition device
50,150,250 first circuit
51 first capacitor units
52 second capacitor cells
53 first rectifier cells
54 second rectifier cells
55 first resistor units
56 second resistance units
70 switching circuits
71 first switches
72 second switches
80 control circuits
Claims (9)
1. a kind of ignition device is provided input electric power, and provides output power to first light source and second light source,
The ignition device has：
Switching circuit cuts the ratio for the output power for being provided respectively to the first light source and the second light source
It changes；
First circuit is entered input voltage corresponding with the input electric power, makes control electricity corresponding with the input voltage
Pressure exports after postponing relative to the input voltage；And
Control circuit is entered the control voltage, the control voltage in the case where being reduced according to the input electric power
Value, controls the switching circuit,
The time constant of first circuit, in the case where the input voltage reduces, than the feelings of input voltage rising
It is big under condition.
2. ignition device as described in claim 1,
First circuit has：
First capacitor unit is applied voltage corresponding with the input voltage；
Second capacitor cell is applied the voltage generated from the input voltage；And
First rectifier cell, one end and the other end connect with the first capacitor unit and second capacitor cell respectively
Connect, make to flow through from second capacitor cell to the electric current of the first capacitor unit, do not make from the first capacitor unit to
The electric current of second capacitor cell flows through.
3. ignition device as claimed in claim 2,
The capacity of second capacitor cell is bigger than the first capacitor unit.
4. ignition device as claimed in claim 2 or claim 3,
First circuit is further equipped with：
The first resistor unit being connected in parallel with the first capacitor unit；And
The second resistance unit being connected in parallel with second capacitor cell.
5. ignition device as claimed in claim 2 or claim 3,
First circuit is further equipped with the Zener diode being connected in series with the first capacitor unit.
6. ignition device as claimed in claim 2 or claim 3,
First circuit is further equipped with the second rectifier cell being connected in series with second capacitor cell.
7. ignition device as described in any one of claim 1 to 3,
The switching circuit has：
First switch is connected in series, according to the first switching signal from the control circuit, to connection with the first light source
State or off-state switch over；And
Second switch is connected in series, according to the second switching signal from the control circuit, to connection with the second light source
State or off-state switch over.
8. a kind of lighting system, has：
Described in any item ignition devices of claim 1 to 7；And
The first light source and the second light source.
9. lighting system as claimed in claim 8,
The second light source is different from the illuminant colour of the first light source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710340364.8A CN108882429B (en) | 2017-05-15 | 2017-05-15 | Lighting device and illumination system |
| JP2018058875A JP7012267B2 (en) | 2017-05-15 | 2018-03-26 | Lighting device and lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710340364.8A CN108882429B (en) | 2017-05-15 | 2017-05-15 | Lighting device and illumination system |
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| CN108882429A true CN108882429A (en) | 2018-11-23 |
| CN108882429B CN108882429B (en) | 2022-03-15 |
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| CN201710340364.8A Active CN108882429B (en) | 2017-05-15 | 2017-05-15 | Lighting device and illumination system |
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| JP7060644B2 (en) * | 2020-04-13 | 2022-04-26 | 日精樹脂工業株式会社 | Electrical circuit of injection molding machine |
Citations (5)
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|---|---|---|---|---|
| CN1207601A (en) * | 1997-07-31 | 1999-02-10 | 三星电机株式会社 | Power factor correction converter |
| US20070176583A1 (en) * | 2006-01-27 | 2007-08-02 | Matsushita Electric Industrial Co., Ltd. | Switching control circuit |
| CN104349547A (en) * | 2013-08-02 | 2015-02-11 | 松下电器产业株式会社 | Lighting device, luminaire, method for designing lighting device, and method for manufacturing lighting device |
| CN104349548A (en) * | 2013-08-02 | 2015-02-11 | 松下电器产业株式会社 | Lighting device and luminaire |
| CN104955211A (en) * | 2014-03-24 | 2015-09-30 | 东芝照明技术株式会社 | Lighting circuit, device and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4014576B2 (en) | 2004-03-29 | 2007-11-28 | 株式会社フォースｔｏフォース | Electrodeless discharge lamp power supply |
| JP6282012B2 (en) | 2014-10-14 | 2018-02-21 | ニチコン株式会社 | LIGHTING POWER DEVICE AND LIGHTING POWER SYSTEM |
| JP2016111018A (en) | 2014-12-04 | 2016-06-20 | オーツー マイクロ， インコーポレーテッド | Controlling brightness and color temperature of light sources |
-
2017
- 2017-05-15 CN CN201710340364.8A patent/CN108882429B/en active Active
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2018
- 2018-03-26 JP JP2018058875A patent/JP7012267B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207601A (en) * | 1997-07-31 | 1999-02-10 | 三星电机株式会社 | Power factor correction converter |
| US20070176583A1 (en) * | 2006-01-27 | 2007-08-02 | Matsushita Electric Industrial Co., Ltd. | Switching control circuit |
| CN104349547A (en) * | 2013-08-02 | 2015-02-11 | 松下电器产业株式会社 | Lighting device, luminaire, method for designing lighting device, and method for manufacturing lighting device |
| CN104349548A (en) * | 2013-08-02 | 2015-02-11 | 松下电器产业株式会社 | Lighting device and luminaire |
| CN104955211A (en) * | 2014-03-24 | 2015-09-30 | 东芝照明技术株式会社 | Lighting circuit, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108882429B (en) | 2022-03-15 |
| JP7012267B2 (en) | 2022-01-28 |
| JP2018195569A (en) | 2018-12-06 |
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