CN106304502B - The power control circuit and system of a kind of lighting device - Google Patents
The power control circuit and system of a kind of lighting device Download PDFInfo
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- CN106304502B CN106304502B CN201610861049.5A CN201610861049A CN106304502B CN 106304502 B CN106304502 B CN 106304502B CN 201610861049 A CN201610861049 A CN 201610861049A CN 106304502 B CN106304502 B CN 106304502B
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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]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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Abstract
The invention discloses a kind of power control circuit of lighting device and system, including：At least one set of power control and the controller being connected with power control, power control include rectifier power source, the first pressure-stabilizing constant flow circuit, the second mu balanced circuit and sectional-regulated circuit.Wherein, the first pressure-stabilizing constant flow circuit is connected with rectifier power source and controller, and the second mu balanced circuit is connected with the first pressure-stabilizing constant flow circuit and sectional-regulated circuit.The sectional-regulated control signal control segmented regulation circuit that controller inputs according to user controls rectifier power source according to sectional-regulated control signal.As can be seen here, the circuit can be according to the regulation for needing to realize illumination apparatus of user, due to multiple power controls, therefore, one controller can realize the control to multiple power controls, also can be achieved with to being controlled while multiple lighting devices.
Description
Technical field
The present invention relates to technical field of semiconductor illumination, a kind of power control circuit more particularly to lighting device and it is
System.
Background technology
Lighting device includes the illumination original paper of diversified forms, and LED lamp is exactly a kind of illumination dress that have developed rapidly in recent years
Put.With the popularization of LED lamp, the control for LED lamp turns into much-talked-about topic.In use, for different fields
Close and different time, the illuminating effect for the LED lamp that application environment needs are possible to different, therefore, it is necessary to LED
The optical signal of tool carries out batch dimming control to be applicable the application scenario such as civilian and commercial.
The content of the invention
It is an object of the invention to provide a kind of power control circuit of lighting device, the optical signal for illumination apparatus enters
Row batch dimming.
In order to solve the above technical problems, the present invention provides a kind of power control circuit of lighting device, including：It is at least one set of
Power control and the controller being connected with the power control, the power control include what is electrically connected with city
Rectifier power source, the first pressure-stabilizing constant flow circuit, the second mu balanced circuit and sectional-regulated circuit；
Wherein, the first pressure-stabilizing constant flow circuit is connected with the rectifier power source and the controller, for will be described whole
The signal for flowing the output end of power supply produces the first constant voltage and constant current, and first constant voltage is posed into described the
Two mu balanced circuits, the constant current is supplied to the controller, second mu balanced circuit and first pressure-stabilizing constant flow
Circuit connects with the sectional-regulated circuit, for producing the second constant voltage, and is supplied to the sectional-regulated circuit；
The sectional-regulated control signal that the controller inputs according to user controls the segmented to adjust circuit according to institute
State sectional-regulated control signal and control the rectifier power source.
Preferably, the first pressure-stabilizing constant flow circuit specifically includes：First electric capacity, the second electric capacity, the first NPN triode,
First PNP triode, the second PNP triode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th
Resistance, three end adjustable shunt reference voltage sources, the first diode；
The current collection of the first end of first electric capacity, the first end of the first resistor and first NPN triode
Pole connects and is connected with the positive output end of the rectifier power source, the second end of first electric capacity, the three ends adjustable shunt base
Second end of the anode of reference voltage source and the 4th resistance connects and is grounded, the second end of the first resistor, described three
Hold the first end company of the negative electrode of adjustable shunt reference voltage source, the base stage of first NPN triode and second electric capacity
Connect, the second end of second electric capacity is connected with the first end of the second resistance, the second end of the second resistance, described
The first end at the second end of three resistance, the reference edge of the three ends adjustable shunt reference voltage source and the 4th resistance connects
Connect；
The of the emitter stage of the emitter stage of first PNP triode and first NPN triode, the 3rd resistor
The first end of one end and the 6th resistance connects, and the of the colelctor electrode of first PNP triode and the 5th resistance
The base stage of one end and second PNP triode connects, the second end of the 5th resistance ground connection, and the of the 6th resistance
Two ends are connected with the base stage of first PNP triode and the emitter stage of second PNP triode, the 2nd PNP tri-
The colelctor electrode of pole pipe is connected with the positive pole of the first diode, and the negative pole of first diode is connected with the controller.
Preferably, second mu balanced circuit specifically includes：Second NPN triode, the 7th resistance, the 8th resistance, second
Voltage-regulator diode；
Wherein, the first end of the 7th resistance and the first end of the 6th resistance and the current collection of the second NPN triode
Pole connects, the second end of the 7th resistance and the first end of the 8th resistance, the base stage of second NPN triode, with
And the negative terminal connection of second voltage-regulator diode, the second end of the anode of second voltage-regulator diode and the 8th resistance
Ground connection, the emitter stage of second NPN triode are connected with the sectional-regulated circuit.
Preferably, the controller specifically include receive user input sectional-regulated control signal control chip and with
It is controlled by the adjustable resistance of the control chip connection；
Negative terminal of the first end and control terminal of wherein described adjustable resistance with first diode is connected, described adjustable
Second end of resistance is connected with the sectional-regulated circuit.
Preferably, the sectional-regulated circuit specifically includes IC control chips, comparator, the 3rd electric capacity, the 4th electric capacity, and
Three PNP triodes, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the
15 resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the second diode, the pole of the 3rd voltage stabilizing two
Pipe, the IC control chips include the first operational amplifier and the second operational amplifier；
Wherein, the first end of the 9th resistance is connected with the second end of the adjustable resistance, and the of the 9th resistance
Two ends and the negative terminal of the 3rd voltage-regulator diode, the second end of the 3rd electric capacity, the second end of the 12nd resistance connect
Connect, the anode of the 3rd voltage-regulator diode is grounded with the first end of the tenth resistance, and the 3rd voltage-regulator diode is just
The first end also with the 3rd electric capacity is held to be connected, the first end of the 12nd resistance and first operational amplifier are just
Phase input connects, the first end of the inverting input of first operational amplifier and the 4th electric capacity, the described 13rd
The first end of resistance and the connection of the first end of the 14th resistance, the second end ground connection of the 14th resistance, described the
The output end of one operational amplifier is connected with the second end of the 4th electric capacity；
The first end of 11st resistance is connected with the rectifier power source, the second end of the 11st resistance with it is described
The normal phase input end of second end of the tenth resistance and second operational amplifier connect, second operational amplifier it is anti-
Phase input is connected with the negative terminal of second diode and the first end of the 15th resistance, and second diode is just
End is connected with the output end of second operational amplifier, transmitting of the IC control chips also with second NPN triode
Pole connects, the second end of the 15th resistance and the first end of the 16th resistance, the current collection of the 3rd PNP triode
The first end of pole and the 17th resistance connects, the second end of the 16th resistance and the second termination of the 19th resistance
Ground, the second end of the 17th resistance connect with the base stage of the 3rd PNP triode and the first end of the 19th resistance
Connecing, the emitter stage of the 3rd PNP triode is connected with the first end of the 18th resistance, and the second of the 18th resistance
End is connected with the second end of the 4th electric capacity and the second end of the 13rd resistance；
Wherein, the common port of the 15th resistance and the 16th resistance is connected with the comparator.
In order to solve the above technical problems, the present invention provides a kind of power control system of lighting device, including lighting device,
Also include the power control circuit of described lighting device, the lighting device with the power control circuit of the lighting device
Rectifier power source connection.
Preferably, the lighting device includes M LED module, and M is positive integer.
The power control circuit and system of lighting device provided by the present invention, including：At least one set of power control
The controller being connected with power control, power control include rectifier power source, the first pressure-stabilizing constant flow circuit, second steady
Volt circuit and sectional-regulated circuit.Wherein, the first pressure-stabilizing constant flow circuit is connected with rectifier power source and controller, the second mu balanced circuit
It is connected with the first pressure-stabilizing constant flow circuit and sectional-regulated circuit.The sectional-regulated control signal that controller inputs according to user controls
Segmented adjusts circuit and controls rectifier power source according to sectional-regulated control signal.As can be seen here, the circuit can be according to user's
Need to realize the regulation of illumination apparatus, because with multiple power controls, therefore, a controller can be realized to more
The control of individual power control, also it can be achieved with to being controlled while multiple lighting devices.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment will be done simply below
Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structure chart of the power control circuit of lighting device provided in an embodiment of the present invention；
Fig. 2 is the structure chart of the power control circuit of another lighting device provided in an embodiment of the present invention；
Fig. 3 is curve map corresponding to a kind of segmented regulation provided in an embodiment of the present invention；
Fig. 4 is a kind of structure chart of the power control system of lighting device provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, for those of ordinary skill in the art under the premise of creative work is not made, what is obtained is every other
Embodiment, belong to the scope of the present invention.
The core of the present invention is to provide the power control circuit and system of a kind of lighting device.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 is a kind of structure chart of the power control circuit of lighting device provided in an embodiment of the present invention.As shown in figure 1,
The power control circuit of lighting device, including：At least one set of power control 100 and it is connected with power control 100
Controller 101, power control 100 include rectifier power source 102, the first pressure-stabilizing constant flow circuit 103, second electrically connected with city
Mu balanced circuit 104 and sectional-regulated circuit 105.
Wherein, the first pressure-stabilizing constant flow circuit 103 is connected with rectifier power source 102 and controller 101, for by rectifier power source
The signal of 102 output end produces the first constant voltage and constant current, and the first constant voltage is posed into the second mu balanced circuit
104, constant current is supplied to controller 101, the second mu balanced circuit 101 and the first pressure-stabilizing constant flow circuit 103 and sectional-regulated
Circuit 105 connects, and for producing the second constant voltage, and is supplied to sectional-regulated circuit 105.
The sectional-regulated control signal control segmented that controller 101 inputs according to user adjusts circuit 105 according to segmentation
Adjustment control signal controls rectifier power source 102.
In the prior art, electric energy directly is provided for lighting device by rectifier power source 102, therefore, it is impossible to realize control
The brightness adjustment control of bright device.In the present embodiment, circuit 105 is adjusted by segmented and controls rectification according to sectional-regulated control signal
Power supply 102 realizes brightness adjustment control.
Fig. 2 is the structure chart of the power control circuit of another lighting device provided in an embodiment of the present invention.Such as Fig. 2 institutes
Show, specific brightness adjustment control is as follows：
First pressure-stabilizing constant flow circuit 103 specifically includes：First electric capacity C1, the second electric capacity C2, the first NPN triode Q1,
One PNP triode Q2, the second PNP triode Q3, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the
Five resistance R5, the 6th resistance R6, three end adjustable shunt reference voltage source ZD1, the first diode D1.
The colelctor electrode connection of first electric capacity C1 first end, first resistor R1 first end and the first NPN triode Q1
And it is connected with the positive output end of rectifier power source 102, the first electric capacity C1 the second end, three end adjustable shunt reference voltage source ZD1
Anode and the 4th resistance R4 the second end connect and are grounded, first resistor R1 the second end, three end adjustable shunt reference voltages
Source ZD1 negative terminal, the base stage of the first NPN triode Q1 and the second electric capacity C2 first end connection, the second of the second electric capacity C2
End is connected with second resistance R2 first end, second resistance R2 the second end, 3rd resistor R3 the second end, three end adjustable shunts
Reference voltage source ZD1 control terminal and the connection of the 4th resistance R4 first end.
First PNP triode Q2 emitter stage and the emitter stage of the first NPN triode Q1,3rd resistor R3 first end with
And the 6th resistance R6 first end connection, the colelctor electrode of the first PNP triode and the 5th resistance R5 first end and the 2nd PNP
Triode Q3 base stage connection, the 5th resistance R5 the second end ground connection, the 6th resistance R6 the second end and the first PNP triode Q2
Base stage and the second PNP triode Q3 emitter stage connection, the second PNP triode Q3 colelctor electrode and the first diode D1's
Positive pole is connected, and the first diode D1 negative pole is connected with controller 101.
Second mu balanced circuit 104 specifically includes：Second NPN triode Q4, the 7th resistance R7, the 8th resistance R8, second is steady
Press diode ZD2.
Wherein, the 7th resistance R7 first end and the 6th resistance R6 first end and the second NPN triode Q4 colelctor electrode
Connection, the 7th resistance R7 the second end and the 8th resistance R8 first end, the second NPN triode Q4 base stage and second are steady
Diode ZD2 negative terminal connection is pressed, the second voltage-regulator diode ZD2 anode and the 8th resistance R8 the second end are grounded, the 2nd NPN
Triode Q4 emitter stage is connected with sectional-regulated circuit 105.
Controller 101 specifically includes the control chip (not shown) for the sectional-regulated control signal for receiving user's input
The adjustable resistance Radj being connected with being controlled by control chip.
The wherein negative terminal of adjustable resistance Radj first end and control terminal with the first diode D1 is connected, adjustable resistance
Radj the second end is connected with sectional-regulated circuit 105.
Sectional-regulated circuit 105 specifically includes IC control chips 106, comparator (not shown), the 3rd electric capacity C3, and
Four electric capacity C4, the 3rd PNP triode Q5, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12,
13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, the 17th resistance R17, the 18th
The resistance diode of R18, the 19th resistance R19, second D3, the 3rd voltage-regulator diode ZD3, IC control chips 106 include the first fortune
Calculate amplifier A and the second operational amplifier B.
Wherein, the 9th resistance R9 first end is connected with adjustable resistance Radj the second end, the 9th resistance R9 the second end
With the 3rd voltage-regulator diode ZD3 negative terminal, the 3rd electric capacity C3 the second end, the 12nd resistance R12 the second end connection, the 3rd is steady
Diode ZD3 anode and the tenth resistance R10 first end is pressed to be grounded, the 3rd voltage-regulator diode ZD3 anode is also electric with the 3rd
Hold C3 first end connection, the 12nd resistance R12 first end is connected with the normal phase input end of the first operational amplifier A, and first
The inverting input of operational amplifier A and the 4th electric capacity C4 first end, the 13rd resistance R13 first end and the 14th electricity
Hinder R14 first end connection, the 14th resistance R14 the second end ground connection, the output end of the first operational amplifier A and the 4th electric capacity
C4 the second end connection.
11st resistance R11 first end is connected with rectifier power source 102, the 11st resistance R11 the second end and the tenth electricity
Hinder R10 the second end and the second operational amplifier B normal phase input end connection, the second operational amplifier B inverting input
It is connected with the second diode D2 negative terminal and the 15th resistance R15 first end, the second diode D2 anode and the second computing
Amplifier B output end connection, emitter stage of the IC control chips 106 also with the second NPN triode Q4 are connected, the 15th resistance
R15 the second end and the 16th resistance R16 first end, the 3rd PNP triode Q5 colelctor electrode and the 17th resistance R17
First end connects, the 16th resistance R16 the second end and the 19th resistance R19 the second end ground connection, and the of the 17th resistance R17
Two ends are connected with the 3rd PNP triode Q5 base stage and the 19th resistance R19 first end, the 3rd PNP triode Q5 transmitting
Pole is connected with the 18th resistance R18 first end, the 18th resistance R18 the second end and the 4th electric capacity C4 the second end and the
13 resistance R13 the second end connection.
Wherein, the 15th resistance R15 and the 16th resistance R16 common port is connected with comparator.
Concrete operating principle is as follows：
Wherein the first NPN triode Q1 and three end adjustable shunt reference voltage source ZD1 etc. form linear stable, there is provided
Constant voltage+Vcc1, while by the second NPN triode Q4, the 7th resistance R7 and the 8th resistance R8) linear stable is formed,
Constant voltage+Vcc2 is provided in IC control chips 106, wherein+Vcc1 ＞+Vcc2, the first PNP triode Q2, the 2nd PNP tri- poles
Pipe Q3, the 5th resistance R5, the 6th resistance R6 form constant-current source circuit, and its size of current is：Ii=+Vcc1/R5, ensureing to connect
In internal current needed for controller 101:
(N：The quantity of the power control 100 of access), it is true by the 5th resistance R5
Determine electric current and be supplied to controller 101, voltage class caused by its controller 101 is about：Ui=Ii*Radj, controller
The control chip segmented adjustment control Signal Regulation adjustable resistance Radj that receives user's input resistance Radj produce it is different
Voltage signal Ui is connected to sectional-regulated circuit 105.
The control principle of sectional-regulated circuit 105 is as follows:
First it is sectional-regulated be 0-Uo1 sections
15th resistance R15, the tenth resistance R10, the 11st resistance R11 and the second diode D2 form a stable minimum
Constant reference voltage value, provide any constant voltage+Vcc by a branch road in rectifier power source 102 and (come from rectifier power source
102), by the tenth resistance R10, the 11st resistance R11 partial pressures obtain minimum voltage Upin5=R10/ (R110+R111) * (+
Vcc) (Upin5 is 5 pin input voltages of IC control chips 106), by second amplifier B of the inside of IC control chips 106, by IC
The 7 pin output of control chip 106 produces comparison voltage Uo1, this voltage through the second diode D2 at the 16th resistance R16 both ends
Value is compared with reference signal Vref caused by rectifier power source 102 by comparator, controls the output current of rectifier power source 102,
Reach and purpose of the lighting device in a constant adjustable output current value (such as 10%I) is adjusted between 0V to Uo1V.
Second it is sectional-regulated be Uo1-Uo2 sections
17th resistance R17, the 18th resistance R18, the 13rd resistance R13, the 12nd resistance R12, the 9th resistance R9, the
19 resistance R19, the 14th resistance R14, the 4th electric capacity C4 and the 3rd electric capacity C3, the 3rd PNP triode Q5, and the pole of voltage stabilizing two
Pipe ZD3 forms a linear reference magnitude of voltage Ui=Ii*Radj adjusted by controller 101, by entering through the 12nd resistance R12
3 pin of IC control chips 106, by first amplifier A of the inside of IC control chips 106, exported by 1 pin of IC control chips 106
Comparison voltage is produced through the resistance R16 both ends of the 3rd PNP triode Q5, the 19th resistance R19, the 17th resistance R17, the 16th
Uo2=(1+R13/R12) * Ui+0.3V, (0.3V is the 3rd PNP triode Q5 VCE voltages), the same rectifier power source of this magnitude of voltage
Reference signal Vref is compared by comparator caused by 102, because of Uo2 ＞ Uo1, the now inside of IC control chips 106 second
Amplifier B produces voltage Uo1 and is not involved in adjusting, and thus reaches the constant current of linear regulation rectifier power source 102 between Uo1V to Uo2V
The purpose of output current value (such as 10%I~100%I).
The 3rd sectional-regulated maximum voltage section for Uo2- controllers 102
Because of+Vcc1 ＞+Vcc2, after Uo2V, lighting device is constant maximum output current value 100%I, and now IC is controlled
Uo2 caused by coremaking piece 106 generation voltage Uo1 and IC control chip 106 is not involved in above-mentioned regulation process, thus reaches
The constant current output current value of linear regulation rectifier power source 102 is the purpose of maximum (such as 100%I) after Uo2V.
Fig. 3 is curve map corresponding to a kind of segmented regulation provided in an embodiment of the present invention.As shown in figure 3, at first point
The maximum voltage section of section regulation 0-Uo1 sections, the second sectional-regulated Uo1-Uo2 sections and the 3rd sectional-regulated Uo2- controllers 102
Corresponding output current change curve.
The power control circuit for the lighting device that the present embodiment provides, including：At least one set of power control and with electricity
Source control device connection controller, power control include electrically connected with city rectifier power source, the first pressure-stabilizing constant flow circuit,
Second mu balanced circuit and sectional-regulated circuit.Wherein, the first pressure-stabilizing constant flow circuit is connected with rectifier power source and controller, for inciting somebody to action
The signal of the output end of rectifier power source produces the first constant voltage, and is supplied to controller, the second mu balanced circuit and the first voltage stabilizing
Constant-current circuit connects with sectional-regulated circuit, for producing the second constant voltage, and is supplied to sectional-regulated circuit.Controller root
According to the sectional-regulated control signal control segmented regulation circuit of user's input rectified current is controlled according to sectional-regulated control signal
Source.As can be seen here, the circuit can be according to the regulation for needing to realize illumination apparatus of user, due to multiple power supplies
Device, therefore, a controller can realize the control to multiple power controls, also can be achieved with to multiple lighting devices
While control.
Fig. 4 is a kind of structure chart of the power control system of lighting device provided in an embodiment of the present invention.As shown in figure 4,
Including lighting device 200, include the power control circuit of the lighting device described in above-described embodiment, lighting device 200 is with shining
Rectifier power source 102 in the power control circuit of bright device connects.
Due to the concrete structure of power control circuit 10 that lighting device is described in detail in above-described embodiment, and work
Principle, therefore the present embodiment repeats no more.Rectifier power source 102 is lighting device 200 under the control of sectional-regulated circuit 105
Electric current corresponding to output.
The power control system for the lighting device that the present embodiment provides includes the power control circuit of lighting device, illumination dress
The power control circuit put includes：At least one set of power control and the controller being connected with power control, power supply control
Device processed includes rectifier power source, the first pressure-stabilizing constant flow circuit, the second mu balanced circuit and the sectional-regulated circuit electrically connected with city.Its
In, the first pressure-stabilizing constant flow circuit is connected with rectifier power source and controller, for the signal of the output end of rectifier power source to be produced into the
One constant voltage, and controller is supplied to, the second mu balanced circuit is connected with the first pressure-stabilizing constant flow circuit and sectional-regulated circuit, is used
In producing the second constant voltage, and it is supplied to sectional-regulated circuit.The sectional-regulated control signal that controller inputs according to user
Segmented regulation circuit is controlled to control rectifier power source according to sectional-regulated control signal.As can be seen here, the circuit can according to
The regulation for needing to realize illumination apparatus at family, because with multiple power controls, therefore, a controller can be realized
Control to multiple power controls, also it can be achieved with to being controlled while multiple lighting devices.
In a preferred embodiment, lighting device 20 includes M LED module, and M is positive integer.
The power control circuit and system of lighting device provided by the present invention are described in detail above.Specification
In each embodiment described by the way of progressive, what each embodiment stressed be it is different from other embodiment it
Place, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment, due to itself and reality
Apply that method disclosed in example is corresponding, so description is fairly simple, related part is referring to method part illustration.It should refer to
Go out, for those skilled in the art, under the premise without departing from the principles of the invention, can also be to the present invention
Some improvement and modification are carried out, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Claims (7)
- A kind of 1. power control circuit of lighting device, it is characterised in that including：At least one set of power control and with it is described The controller of power control connection, the power control include rectifier power source, the first voltage stabilizing perseverance electrically connected with city Current circuit, the second mu balanced circuit and sectional-regulated circuit；Wherein, the first pressure-stabilizing constant flow circuit is connected with the rectifier power source and the controller, for by the rectified current The signal of the output end in source produces the first constant voltage and constant current, and it is steady that first constant voltage is posed into described second Volt circuit, the constant current is supplied to the controller, second mu balanced circuit and the first pressure-stabilizing constant flow circuit Connected with the sectional-regulated circuit, for producing the second constant voltage, and be supplied to the sectional-regulated circuit；The sectional-regulated control signal that the controller inputs according to user controls the sectional-regulated circuit according to the segmentation Adjustment control signal controls the rectifier power source.
- 2. the power control circuit of lighting device according to claim 1, it is characterised in that the first pressure-stabilizing constant flow electricity Road specifically includes：First electric capacity, the second electric capacity, the first NPN triode, the first PNP triode, the second PNP triode, the first electricity Resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, three end adjustable shunt reference voltage sources, the one or two Pole pipe；The colelctor electrode of the first end of first electric capacity, the first end of the first resistor and first NPN triode connects Connect and be connected with the positive output end of the rectifier power source, the second end of first electric capacity, three ends adjustable shunt benchmark electricity Second end of the anode of potential source and the 4th resistance connects and is grounded, and the second end of the first resistor, three end can Adjust the negative electrode of shunting reference voltage source, the first end connection of the base stage of first NPN triode and second electric capacity, institute The second end for stating the second electric capacity is connected with the first end of the second resistance, the second end of the second resistance, the 3rd electricity The first end connection at the second end of resistance, the reference edge of the three ends adjustable shunt reference voltage source and the 4th resistance；The emitter stage of first PNP triode and the emitter stage of first NPN triode, the first end of the 3rd resistor And the first end connection of the 6th resistance, the first end of the colelctor electrode of first PNP triode and the 5th resistance And the base stage connection of second PNP triode, the second end ground connection of the 5th resistance, the second end of the 6th resistance It is connected with the base stage of first PNP triode and the emitter stage of second PNP triode, second PNP triode Colelctor electrode be connected with the positive pole of the first diode, the negative pole of first diode is connected with the controller.
- 3. the power control circuit of lighting device according to claim 2, it is characterised in that the second mu balanced circuit tool Body includes：Second NPN triode, the 7th resistance, the 8th resistance, the second voltage-regulator diode；Wherein, the first end of the 7th resistance connects with the colelctor electrode of the first end of the 6th resistance and the second NPN triode Connect, the second end of the 7th resistance and the first end of the 8th resistance, the base stage of second NPN triode, Yi Jisuo State the negative terminal connection of the second voltage-regulator diode, the second termination of the anode of second voltage-regulator diode and the 8th resistance Ground, the emitter stage of second NPN triode are connected with the sectional-regulated circuit.
- 4. the power control circuit of lighting device according to claim 3, it is characterised in that the controller specifically includes The adjustable resistance for receiving the control chip of the sectional-regulated control signal of user's input and being connected with being controlled by the control chip；Negative terminal of the first end and control terminal of wherein described adjustable resistance with first diode is connected, the adjustable resistance The second end be connected with the sectional-regulated circuit.
- 5. the power control circuit of lighting device according to claim 4, it is characterised in that the sectional-regulated circuit tool Body includes IC control chips, comparator, the 3rd electric capacity, the 4th electric capacity, the 3rd PNP triode, the 9th resistance, the tenth resistance, and 11 resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 17th resistance, the 18 resistance, the 19th resistance, the second diode, the 3rd voltage-regulator diode, the IC control chips include the first operation amplifier Device and the second operational amplifier；Wherein, the first end of the 9th resistance is connected with the second end of the adjustable resistance, the second end of the 9th resistance With the negative terminal of the 3rd voltage-regulator diode, the second end of the 3rd electric capacity, the second end connection of the 12nd resistance, institute The first end for stating the anode of the 3rd voltage-regulator diode and the tenth resistance is grounded, the anode of the 3rd voltage-regulator diode also with The first end connection of 3rd electric capacity, the first end of the 12nd resistance input with the positive of first operational amplifier End connection, the first end of the inverting input of first operational amplifier and the 4th electric capacity, the 13rd resistance First end and the connection of the first end of the 14th resistance, the second end ground connection of the 14th resistance, first computing The output end of amplifier is connected with the second end of the 4th electric capacity；The first end of 11st resistance is connected with the rectifier power source, the second end and the described tenth of the 11st resistance The normal phase input end of second end of resistance and second operational amplifier connect, second operational amplifier it is anti-phase defeated Enter end be connected with the negative terminal of second diode and the first end of the 15th resistance, the anode of second diode and The output end connection of second operational amplifier, the IC control chips also connect with the emitter stage of second NPN triode Connect, the second end of the 15th resistance and the first end of the 16th resistance, the 3rd PNP triode colelctor electrode with And the 17th resistance first end connection, the second end ground connection of the second end of the 16th resistance and the 19th resistance, Second end of the 17th resistance is connected with the base stage of the 3rd PNP triode and the first end of the 19th resistance, The emitter stage of 3rd PNP triode is connected with the first end of the 18th resistance, the second end of the 18th resistance It is connected with the second end of the 4th electric capacity and the second end of the 13rd resistance；Wherein, the common port of the 15th resistance and the 16th resistance is connected with the comparator.
- 6. a kind of power control system of lighting device, including lighting device, it is characterised in that also appoint including claim 1-5 In the power control circuit of the power control circuit of lighting device described in meaning one, the lighting device and the lighting device Rectifier power source connection.
- 7. the power control system of lighting device according to claim 6, it is characterised in that the lighting device includes M Individual LED module, M are positive integer.
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| CN201610861049.5A CN106304502B (en) | 2016-09-28 | 2016-09-28 | The power control circuit and system of a kind of lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3315621B2 (en) * | 1997-04-11 | 2002-08-19 | 富士通株式会社 | Internal step-down power supply circuit of semiconductor device |
| KR100560822B1 (en) * | 2004-09-02 | 2006-03-13 | 삼성전자주식회사 | Semiconductor device capable of generating ripple-free voltage internally |
| CN102186283B (en) * | 2011-03-23 | 2013-06-12 | 矽力杰半导体技术(杭州)有限公司 | Silicon-controlled light dimming circuit, light dimming method and LED (light-emitting diode) driving circuit applying the light dimming circuit |
| CN202310243U (en) * | 2011-11-10 | 2012-07-04 | 深圳可立克科技股份有限公司 | LED power supply dimming circuit |
| CN202634787U (en) * | 2012-04-28 | 2012-12-26 | 刘四清 | LED light fixture with sectional color-temperature adjustment |
| EP2799944B1 (en) * | 2013-04-29 | 2019-02-20 | Siemens Aktiengesellschaft | A method for controlling a power generation plant |
| CN203251474U (en) * | 2013-05-03 | 2013-10-23 | 朱健荣 | LED lamp controllable silicon dimming drive circuit |
| CN103491689B (en) * | 2013-09-27 | 2016-04-20 | 阳亮 | Controllable silicon light modulation LED driving switch power circuit |
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