CN105792466B - Infrared induction drive control circuit and illumination control circuit - Google Patents
Infrared induction drive control circuit and illumination control circuit Download PDFInfo
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- CN105792466B CN105792466B CN201410817244.9A CN201410817244A CN105792466B CN 105792466 B CN105792466 B CN 105792466B CN 201410817244 A CN201410817244 A CN 201410817244A CN 105792466 B CN105792466 B CN 105792466B
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Abstract
The present invention discloses a kind of infrared induction drive control circuit comprising infrared control module and drive control module.In infrared control module, infrared induction unit detection infrared ray simultaneously generates corresponding electric signal, switch unit turns on and generates the first trigger signal according to electric signal, control unit generates first control signal according to the first trigger signal, switch unit generates the second trigger signal when being in off state, control unit generates second control signal according to the second trigger signal.Drive control module exports the first output power according to first control signal, and exports the second output power according to second control signal, and the first output power and the second output power are greater than zero.In above-mentioned infrared induction drive control circuit, drive control module exports two output powers greater than zero, realizes in the case where switch unit is in off state, still there is glimmer illumination in the place of required illumination.It offers convenience in use to user in this way.Invention additionally discloses a kind of illumination control circuits.
Description
Technical field
The present invention relates to lighting area, in particular to a kind of infrared induction drive control circuit and a kind of Lighting control electricity
Road.
Background technique
Each state in the whole world is all advocating energy-saving and emission-reduction at present, reduces pollution and discharge.Therefore, it in the field of illumination, utilizes
Infrared induction is widely used to control the technology of the on or off of light source, and this technology is suitably applied in bus station, household is shone
Bright, hotel leads to clouds illumination, public house, supermarket sales field and the places such as small towns street street lighting and public area.
But current infrared induction control circuit control light source if it were not for going out or all light, no automatic class output are shone entirely
Bright control, such as Wireless Light modulating or thyristor regulating optical illumination (and manually to carry out adjusting and set).If someone enters some place, but
The range of infrared induction is had not yet entered into, at this moment headlamp is in the state gone out entirely, and there have been people in sense of place for this
When answering outer layer, the very dark situation of place induction range.Therefore, such infrared induction control circuit gives user in use
It makes troubles.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention needs to provide one
Kind infrared induction drive control circuit and a kind of illumination control circuit.
A kind of infrared induction drive control circuit, including infrared control module and the driving being connect with the infrared control module
Control module；
The infrared control module includes sequentially connected infrared induction unit, switch unit and control unit, the infrared sense
It answers unit detection infrared ray and generates corresponding electric signal, which, which turns on and generates the first triggering according to electric signal, believes
Number, which generates first control signal according to first trigger signal, does not detect in the infrared induction unit red
When outside line, which is in off state, and generates the second trigger signal when being in off state, the control unit root
Second control signal is generated according to second trigger signal；And
The drive control module exports the first output power according to the first control signal, and according to the second control signal
The second output power is exported, which is greater than second output power, which is greater than zero.
In above-mentioned infrared induction drive control circuit, drive control module can export two output powers greater than zero, example
Power when such as the first output power is headlamp all light, the second output power is the 10%~30% of the first output power, real
Even if having showed in the case where switch unit is in off state, still there is glimmer illumination in the place of required illumination.In this way to use
Family offers convenience in use.
In one embodiment, which includes triode Q21, the first power resistor, the second power electricity
Hinder R26, processing unit, diode D22 and inductance L21；
The base stage of triode Q21 connects the output end of the infrared control module, the emitter ground connection of triode Q21, three poles
The collector of pipe Q21 connects the current sampling port of the processing unit, one end of the second power resistor R26 through first power resistor
The current sampling port of the processing unit is connected, the other end ground connection of the second power resistor R26, the end A of diode D22 connects the drive
The power input of dynamic control module, one end of the end the K connection inductance L21 of diode D22, the other end connection of inductance L21 should
The power take-off of drive control module, the end K of the drain electrode connection diode D22 of the high-voltage power pipe inside the processing unit and
One end of inductance L21.
In one embodiment, which includes the resistance R28 and resistance R29 being connected in parallel.
In one embodiment, which further includes diode D23, capacitor C24 and resistance R27, two poles
The one end at the end A of pipe D23, one end of capacitor C24 and resistance R7 is connected to the output end of the infrared control module, diode
The other end at the end K of D23, the other end of capacitor C24 and resistance R7 is grounded.
In one embodiment, the drive control module further include capacitor C21, C23, diode D21 and resistance R24,
R21, R22, R25, the end A of diode D21 and one end of resistance R24 are connected to power output end, the end K of diode D21, resistance
One end of the other end of R24, one end of resistance R22 and capacitor C23 is connected to the 4th pin of the processing unit, capacitor C23's
Other end ground connection, one end of the other end connection resistance R21 of resistance R22, the other end of resistance R21 connect the drive control module
Power input, capacitor C21 is connected between the power input of the drive control module and ground terminal, and resistance R25 is connected to
Between the 2nd pin and ground terminal of the processing unit.
In one embodiment, which further includes capacitor C22 and resistance R23, one end of capacitor C22 and
One end of resistance R23 is all connected with the power input of the drive control module, and the other end of capacitor C22 and resistance R23's is another
End is connected to the power take-off of the drive control module.
In one embodiment, which further includes diode D1 and resistance R1, R3, R4, R5；
The end K of diode D1 is grounded, and the end A of diode D1 connects the input terminal of the infrared induction unit, the infrared induction
The input terminal of unit is connected to the power input of the infrared control module through resistance R1, and resistance R4 is connected to the infrared induction list
Between the output end of member and the control terminal of the switch unit, the first end of the switch unit is connected to the infrared control through resistance R3
The power input of module, the second end ground connection of the switch unit；
The input terminal of the control unit is connected between resistance R3 and the first end of the switch unit, the control unit it is defeated
Outlet is connected to the output end of the infrared control module through resistance R5.
In one embodiment, which further includes capacitor C1 and resistance R2, one end connection of capacitor C1
1st pin of the control unit, the other end of capacitor C1 and one end of resistance R2 are all connected with the 2nd pin of the control unit, electricity
The other end of resistance R2 connects the power input of the infrared control module.
A kind of illumination control circuit, including infrared induction drive control circuit and load circuit, infrared induction driving control
Circuit processed includes infrared control module and the drive control module that connect with the infrared control module；
The infrared control module includes sequentially connected infrared induction unit, switch unit and control unit, the infrared sense
It answers unit detection infrared ray and generates corresponding electric signal, which is connected according to electric signal to generate the first triggering letter
Number, which generates first control signal according to first trigger signal, does not detect in the infrared induction unit red
When outside line, which is in off state, and generates the second trigger signal when being in off state, the control unit root
Second control signal is generated according to second trigger signal；
The drive control module exports the first output power according to the first control signal, and according to the second control signal
The second output power is exported, which is greater than second output power, which is greater than zero；
The load circuit be connected to the power take-off of the drive control module and with first output power or this second
Output power work.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the frame circuit diagram of the illumination control circuit of better embodiment of the present invention；
Fig. 2 is the circuit diagram of the infrared control module of better embodiment of the present invention；And
Fig. 3 is the circuit diagram of the drive control module of better embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or hidden conjunction indicates the quantity of indicated technical characteristic.Define as a result, " the
The feature of one ", " second " can explicitly or implicitly include one or more feature.In description of the invention
In, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can be in communication with each other；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter to the component of specific examples and being set for describing.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the illumination control circuit 100 of better embodiment of the present invention includes infrared induction drive control circuit
102 and load circuit 104.The load circuit 104 can be LED load circuit.
The infrared induction drive control circuit 102 includes infrared control module 106 and connect with the infrared control module 106
Drive control module 108.
The infrared control module 106 includes sequentially connected infrared induction unit 110, switch unit 112 and control unit
114.The infrared induction unit 106 detection infrared ray simultaneously generates corresponding electric signal, which is connected according to electric signal
To generate the first trigger signal, which generates first control signal according to first trigger signal.
When the infrared induction unit 110 does not detect infrared ray, which is in off state, and
The second trigger signal is generated when in off state, which generates the second control according to second trigger signal and believe
Number.Infrared induction unit 110 does not detect infrared ray, does not export electric signal, and therefore, switch unit 112 is in cut-off shape
State.
The drive control module 108 exports the first output power according to the first control signal, and according to second control
Signal exports the second output power, which is greater than second output power, which is greater than zero.
The load circuit 104 is connected to the power take-off 116 of the drive control module 108 and with first output power
Or second output power work.
Specifically, infrared induction unit 110 includes input terminal A, output end B and ground terminal C, infrared induction unit 110
Input terminal A connection power end VCC, the control terminal of output end B connection switch unit 112, ground terminal C ground connection.
The output terminals A of the first end connection infrared induction unit 110 of switch unit 112, the second termination of switch unit 112
Ground, the input terminal of the third end connection control unit 114 of switch unit 112.In present embodiment, switch unit 112 is three poles
Pipe Q1, i.e. the output end B of the base stage connection infrared induction unit 110 of switch unit 112, the emitter ground connection of switch unit 112,
The input terminal of the collector connection control unit 114 of switch unit 112.
The output end of control unit 114 is connected to the output end 118 of infrared control module through resistance R5.
Drive control module 108 includes triode Q21, the first power resistor 120, the second power resistor R26, processing unit
122, diode D22 and inductance L21.
In the present embodiment, processing unit 122 includes PWM (Pulse Width Modulation) control module 124
And high-voltage power pipe 126, the first end and second end of PWM control module 124 are connected to the power input of drive control module
Hold the base stage of the third end connection high-voltage power pipe 126 of 128, PWM control module 124.Processing unit 122 can control core for PWM
Piece, is wide input voltage switch controller, and LED exports current precision ± 5%, is internally integrated 500V power tube, chip
Ultralow operating current has critical current mode continuous mode (TM).Chip switch working frequency is controlled in 48KHZ, pwm signal
Push built-in metal-oxide-semiconductor work.Chip has excellent line voltage regulation and load regulation and LED open/short circuit protection and electric current
Sampling resistor defencive function.The power input 128 of drive control module can be connected to rectification module 132.
The base stage of triode Q21 as drive control module 108 control terminal and connect the output of infrared control module 106
End 118, the emitter ground connection of triode Q21, the collector of triode Q21 connect the processing list through first power resistor 120
The current sampling port of member 122.Resistance R5 is clipping resistance, and resistance value is according to the base stage V of triode Q21EBOThreshold values needs level
Adjustment.
One end of second power resistor R26 connects the current sampling port of the processing unit 122.Second power resistor R26's
Other end ground connection.The resistance value of second power resistor R26 is the resistance value of the second output power, such as the second output power is
10%~30% lighting power.Current sampling port of the source electrode of high-voltage power pipe 126 as processing unit 122.
The end A of diode D22 connects the power input 128 of the drive control module 108, the end the K connection of diode D22
One end of inductance L21, the other end of inductance L21 connect the power take-off 116 of the drive control module 108, high-voltage power pipe
The end K of 126 drain electrode connection diode D22 and one end of inductance L21.
In present embodiment, which includes the resistance R28 and resistance R29 being connected in parallel.Resistance R28
One end after in parallel with resistance R29 is connected to the collector of triode Q21, and the other end after resistance R28 is in parallel with resistance R29 connects
It is connected to the current sampling port of processing unit 122.The resistance value of the resistance R28 and R29 of first power resistor 120 are according to the first output work
Resistance value needed for rate determines, for example, the lighting power that the first output power is 100%.
When work, in the working range of infrared induction unit 110 nobody in the case where, because of 110 nothing of infrared induction unit
Detect that infrared ray, the output end B of infrared induction unit 110 end preposition triode Q1 without outputs level signals, control is single
Member 114 exports low level, triode Q21 cut-off, 120 nothing of the first power resistor by the output end 118 of infrared control module 106
Method ground connection, the second output power that drive control module 108 exports are determined by the resistance value of the second power resistor R26.For example, second
The resistance value value of power resistor R26 can make the lighting power of the second output power 10%~30%.
In the working range of infrared induction unit 110 in the case where someone, infrared induction unit 110 senses that human body is red
Induction level signal is exported in output end B after outside line, preposition triode Q1 is connected in level signal, and control unit 114 passes through red
The output end 118 of outer control module 106 exports high level signal.Triode Q21 conducting, after resistance R28 is in parallel with resistance R29
First power resistor 120 ground connection, at this point, the resistance value whole earth of power resistor R26, R28, R29 work.Drive control mould
The first output power that block 108 exports is determined by the resistance value of resistance R28, R29, for example, the resistance value value of resistance R28, R29 can make
The lighting power that first output power is 100%.
Load circuit 104 includes diode D31, capacitor C31 and load 130.The end K of diode D31 connects drive control
The power take-off 116 of module 108, the end the A connection load of diode D31 and one end of capacitor C31, the other end of capacitor C31
Ground connection.
In conclusion drive control module 108 can export two output greater than zero in above-mentioned illumination control circuit 100
Power, for example, the first output power be headlamp all light when power, the second output power be the first output power 10%~
30%, it realizes even if the case where infrared induction unit 110 does not export electric signal (switch unit 112 is in off state)
Under, still there is glimmer illumination in the place of required illumination.It offers convenience in use to user in this way.
It please join Fig. 2 and Fig. 3, the infrared induction drive control circuit of better embodiment of the present invention includes infrared control module
202 and the drive control module 204 that is connect with infrared control module 202.
Infrared control module 202 includes infrared induction unit IC2, switch unit Q1, control unit IC1, diode D1, electricity
Hinder R1, R3, R4, R5, capacitor C1 and resistance R2.
Control unit IC1 include the 1st pin, the 2nd pin ..., the 8th pin.5th pin is the input of control unit IC1
End.The output end that 4th pin and the 6th pin are control unit IC1.3rd and the 7th pin is hanging, the 8th pin ground connection.Resistance
R3 is adjustable resistance.In present embodiment, switch unit Q1 is triode Q1.Monostable flipflop can be selected in control unit IC1.
The end K of diode D1 is grounded, and the end A of diode D1 connects the input terminal Vin of infrared induction unit IC2, this is red
The input terminal Vin of outer sensing unit IC2 is connected to the power input VDD2 of infrared control module through resistance R1 to power.Cause
This, provides working power to infrared induction unit IC2 after diode D1 rectification, for example, resistance R1 and diode D1 is infrared sense
Unit IC2 power supply and pressure stabilizing 5.1V voltage value are answered, guarantees the input service level of stable infrared sensing unit IC2.
Resistance R4 is connected to the first end of the output end vo ut and switch unit Q1 of infrared induction unit IC2 (that is, three
The base stage of pole pipe Q1) between, the third end (i.e. the collector of triode Q1) of switch unit Q1 is connected to infrared through resistance R3
The second end (i.e. the emitter of triode Q1) of the power input VDD2 of control module, switch unit Q1 are grounded.
The input terminal (that is, the 5th pin) of control unit IC1 be connected to resistance R3 and switch unit Q1 first end it
Between.Constitute infrared induction level signal input channel circuit so as a result,.The electricity of a termination infrared control module of resistance R3
Input terminal VDD2 power supply in source provides a level numerical value for pullup resistor and the 5th pin for adjusting trigger control unit IC1.It should
The output end S of output end (the 4th pin and the 6th pin) through resistance R5 connection infrared control module of control unit IC1.
One end of capacitor C1 connects the 1st pin of control unit IC1, and the other end of capacitor C1 and one end of resistance R2 are equal
Connect the 2nd pin of control unit IC1, the power input VDD2 of the other end connection infrared control module of resistance R2.By
This, capacitor C1 capability value CTValue determines when circuit forms the court of a feudal ruler and reset parameter condition.
Drive control module 204 include triode Q21, the first power resistor, the second power resistor R26, processing unit U1,
Diode D22, inductance L21, diode D23, capacitor C24, resistance R27, capacitor C21, capacitor C23, diode D21, resistance
R24, R21, R22, R25, capacitor C22 and resistance R23.
Processing unit U1 include the 1st pin, the 2nd pin ..., the 8th pin, wherein the 5th and the 6th pin be processing unit
The drain electrode of U1 internal high pressure power tube.7th and the 8th pin is the current sample pin of processing unit U1.
Output end S of the base stage of triode Q21 as the control terminal connection infrared control module of drive control module, three poles
The emitter of pipe Q21 is grounded, and the electric current that the collector of triode Q21 is connected to processing unit U1 through first power resistor is adopted
Sample end (i.e. the 7th and the 8th pin).In present embodiment, the first power resistor includes the resistance R28 and resistance R29 being connected in parallel.
One end after resistance R28 and resistance R29 is in parallel is connected to the collector of triode D21, resistance R28 and resistance R29 it is in parallel after
The other end is connected to the current sampling port of processing unit U1.In addition, resistance R5 is clipping resistance, resistance value is according to triode Q21
Base stage VEBOThreshold values needs level to adjust.
One end of second power resistor R26 is connected to the current sampling port of processing unit U1, the second power resistor R26's
Other end ground connection, the end A of diode D22 connects the power input VDD of the drive control module, the electricity of the drive control module
Source input terminal VDD can connect the power supply after rectification, one end of the end the K connection inductance L21 of diode D22, the other end of inductance L21
The power take-off of the drive control module is connected, which can be used as the first output loading interface, such as cathode simultaneously.
The end K of the 5th and the 6th pin connection diode D22 of processing unit U1 and one end of inductance L21.
The one end at the end A of diode D23, one end of capacitor C24 and resistance R7 is all connected with the output of the infrared control module
Hold S.The other end at the end K of diode D23, the other end of capacitor C24 and resistance R7 is grounded.As a result, the end A of diode D23,
The base stage of one end of capacitor C24, one end of resistance R7 and triode Q21 is separately connected, composition the end S level signal input pressure stabilizing and
Filter circuit keeps circuit path operation level signal more stable.Diode D23 is Zener voltage-stabiliser tube.
The end A of diode D21 and one end of resistance R24 are connected to the power output end VDD1 of drive control module.Two
The end K of pole pipe D21, the other end of resistance R24, one end of resistance R22 and capacitor C23 one end be connected to processing unit U1
The 4th pin, compositing chip start-up circuit and VDD1 power supply, capacitor C23 is filter capacitor.The other end of capacitor C23 is grounded, electricity
Hinder one end of the other end connection resistance R21 of R22, the power input of the other end connection drive control module of resistance R21
VDD, capacitor C21 are connected between the power input VDD of drive control module and ground terminal, the anode connection driving of capacitor C21
The power input VDD of control module.Resistance R25 is connected between the 2nd pin and ground terminal of processing unit U1.
The resistance value of resistance R25 provides setting for overvoltage protection parameter.Simultaneously diode D21 the end A and resistance R24 one
End is all connected with the power output end VDD1 of drive control module to provide power to the power input VDD2 of infrared control module.
One end (such as anode) of capacitor C22 and one end of resistance R23 are all connected with the power input of drive control module
The other end of VDD, capacitor C22 and the other end of resistance R23 are all connected with the other end of inductance L21.The other end of resistance R21, two
The end A of pole pipe D22, the anode of capacitor C21, C22 connect the power input VDD of drive control module with one end of resistance R23
Using as the second output loading interface, such as anode.The other end of the other end of inductance L1, the other end of capacitor C22 and resistance R23
Connect and compose the first output loading interface, such as cathode.
The inductance L of inductance L21 is calculated by following formula:
L=Vled × (Vin × Vled) ÷ f × Ipeak × Vin；Ipeak=400 ÷ Rcs (mA),
It exports to the electric current calculating formula of load (such as LED) are as follows: Iled=Ipeak ÷ 2,
Thus output load current value can be calculated.Wherein, Vled is load voltage, and Vin is the electricity of drive control module
The input voltage (voltage after rectification) of source input terminal VDD, f are the switching frequency of processing unit U1, once specific processing is single
After first U1 is selected, f is fixed value, such as 48KHz.Ipeak is the peak point current of processing unit U1, and Rcs is the interior of processing unit U1
Resistance.
The drive control module 204 of present embodiment includes that processing unit U1 and peripheral cell are driven with voltage-dropping type constant current,
With critical current mode continuous mode (TM), provide linear compensation and high precision constant current effect, output electric current not with inductance and
The variation of load has excellent adjustment of load characteristic.Startup power supply provides current value by resistance R21, R22, gives processing unit
U1 power initiation.
The resistance value of second power resistor R26 is the resistance value of the second output power, for example, the second output power is
The lighting power of 10-30%.Capacitor C21 is prestage filter capacitor, and capacitor C22 is output stage filter capacitor, is filtered out on channel
Dc noise clutter.Resistance R23 is output load resistance, plays load open circuit protection.
When work, in the working range of infrared induction unit IC2 in the case where nobody, because infrared induction unit IC2 is without inspection
Infrared ray is measured, the output end vo ut of infrared induction unit IC2 ends preposition triode Q1 without outputs level signals, because of three poles
The 5th pin of the control unit IC1 of the collector connection of pipe Q1 keeps high level by resistance R3 pull-up resistor, and control is single at this time
The internal relations formula of first IC1 is Q pairsThe output of the 4th and the 6th pin of control unit IC1 is low level signal.
The triode Q21 for connecting the output end S of infrared control module, because base stage (control terminal of drive control module) nothing is led
It is powered flat, triode Q21 cut-off, the first power resistor of resistance R28 formation in parallel with R29 can not be grounded, drive control module
The second output power determine that such as the second output power takes 10%~30% by the resistance value of the second power resistor R26 at this time
Lighting power, because of power P out=IoutxVout, electric current Iled=Ipeak ÷ 2, Ipeak=400 ÷ Rcs (mA) is by upper formula
The resistance value of the second power resistor R26 in 10%~30% lighting power can be calculated.
In the working range of infrared induction unit IC2 in the case where someone, infrared induction unit IC2 senses that human body is red
Outside line exports induction level signal in output end vo ut, and level signal enters preposition triode Q1 base stage through resistance R4 and makes three poles
Pipe Q1 is connected, and the 5th pin of control unit IC1 is because the conducting of preposition triode Q1 forces the landing of the 5th pin high level at this time
Low level (zero volt or so), at this time the internal relations formula of control unit IC1 beTo Q, the 4th and the 6th pin of control unit IC1
Output be high level signal.
The triode Q21 for connecting the output end S of infrared control module, because base stage has conduction level signal to lead triode Q1
Logical, the first power resistor ground connection of resistance R28 formation in parallel with resistance R29, resistance value is whole at this time by power resistor R26, R28, R29
Earth work.Resistance R28 and R29 is calculated the resistance value when lighting power that the first output power is 100% by above formula.
In conclusion drive control module 204 can export two and be greater than in above-mentioned infrared induction drive control circuit 200
Zero output power, for example, the first output power be headlamp all light when power, the second output power be the first output power
10%~30%, realize even if infrared induction unit IC2 do not export electric signal (switch unit Q1 is in off state)
In the case where, still there is glimmer illumination in the place of required illumination.It offers convenience in use to user in this way.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (8)
1. a kind of infrared induction drive control circuit, which is characterized in that including infrared control module and with the infrared control module
The drive control module of connection；
The infrared control module includes sequentially connected infrared induction unit, switch unit and control unit, the infrared induction list
Member detection infrared ray simultaneously generates corresponding electric signal, which turns on and generates the first trigger signal according to electric signal, should
Control unit generates first control signal according to first trigger signal, does not detect infrared ray in the infrared induction unit
When, which is in off state, and generates the second trigger signal when being in off state, and the control unit is according to this
Second trigger signal generates second control signal；And
The drive control module exports the first output power according to the first control signal, and is exported according to the second control signal
Second output power, first output power are greater than second output power, which is greater than zero；
The drive control module includes triode Q21, the first power resistor, the second power resistor R26, processing unit, diode
D22 and inductance L21；
The base stage of triode Q21 connects the output end of the infrared control module, the emitter ground connection of triode Q21, triode Q21
Collector the current sampling port of the processing unit, one end connection of the second power resistor R26 are connected through first power resistor
The current sampling port of the processing unit, the other end ground connection of the second power resistor R26, the end A of diode D22 connects the driving control
The power input of molding block, one end of the end the K connection inductance L21 of diode D22, the other end of inductance L21 connect the driving
The power take-off of control module, the end K of the drain electrode connection diode D22 of the high-voltage power pipe inside the processing unit and inductance
One end of L21.
2. infrared induction drive control circuit as described in claim 1, which is characterized in that first power resistor includes parallel connection
The resistance R28 and resistance R29 of connection.
3. infrared induction drive control circuit as claimed in claim 2, which is characterized in that the drive control module further includes two
One end of pole pipe D23, capacitor C24 and resistance R27, the end A of diode D23, one end of capacitor C24 and resistance R7 are connected to this
The other end of the output end of infrared control module, the end K of diode D23, the other end of capacitor C24 and resistance R7 is grounded.
4. infrared induction drive control circuit as claimed in claim 2, which is characterized in that the drive control module further includes electricity
Hold C21, C23, diode D21 and resistance R24, R21, R22, R25, the end A of diode D21 and one end of resistance R24 to be connected to
Power output end, the end K of diode D21, the other end of resistance R24, one end of resistance R22 and capacitor C23 one end be all connected with
To the 4th pin of the processing unit, the other end of capacitor C23 is grounded, one end of the other end connection resistance R21 of resistance R22, electricity
The other end of resistance R21 connects the power input of the drive control module, and capacitor C21 is connected to the power supply of the drive control module
Between input terminal and ground terminal, resistance R25 is connected between the 2nd pin of the processing unit and ground terminal.
5. infrared induction drive control circuit as claimed in claim 2, which is characterized in that the drive control module further includes electricity
Holding C22 and resistance R23, one end of capacitor C22 and one end of resistance R23 are all connected with the power input of the drive control module,
The other end of capacitor C22 and the other end of resistance R23 are connected to the power take-off of the drive control module.
6. infrared induction drive control circuit as described in claim 1, which is characterized in that the infrared control module further includes two
Pole pipe D1 and resistance R1, R3, R4, R5；
The end K of diode D1 is grounded, and the end A of diode D1 connects the input terminal of the infrared induction unit, the infrared induction unit
Input terminal the power input of the infrared control module is connected to through resistance R1, resistance R4 is connected to the infrared induction unit
Between output end and the control terminal of the switch unit, the first end of the switch unit is connected to the infrared control module through resistance R3
Power input, the switch unit second end ground connection；
The input terminal of the control unit is connected between resistance R3 and the first end of the switch unit, the output end of the control unit
The output end of the infrared control module is connected to through resistance R5.
7. infrared induction drive control circuit as described in claim 1, which is characterized in that the infrared control module further includes electricity
Hold C1 and resistance R2, one end of capacitor C1 connects the 1st pin of the control unit, the other end of capacitor C1 and one end of resistance R2
It is all connected with the 2nd pin of the control unit, the other end of resistance R2 connects the power input of the infrared control module.
8. a kind of illumination control circuit, which is characterized in that including infrared induction drive control circuit and load circuit, the infrared sense
Answering drive control circuit includes infrared control module and the drive control module that connect with the infrared control module；
The infrared control module includes sequentially connected infrared induction unit, switch unit and control unit, the infrared induction list
Member detection infrared ray simultaneously generates corresponding electric signal, which is connected according to electric signal to generate the first trigger signal, should
Control unit generates first control signal according to first trigger signal, does not detect infrared ray in the infrared induction unit
When, which is in off state, and generates the second trigger signal when being in off state, and the control unit is according to this
Second trigger signal generates second control signal；
The drive control module exports the first output power according to the first control signal, and is exported according to the second control signal
Second output power, first output power are greater than second output power, which is greater than zero；
The load circuit is connected to the power take-off of the drive control module and with first output power or second output
Power work；
The drive control module includes triode Q21, the first power resistor, the second power resistor R26, processing unit, diode
D22 and inductance L21；
The base stage of triode Q21 connects the output end of the infrared control module, the emitter ground connection of triode Q21, triode Q21
Collector the current sampling port of the processing unit, one end connection of the second power resistor R26 are connected through first power resistor
The current sampling port of the processing unit, the other end ground connection of the second power resistor R26, the end A of diode D22 connects the driving control
The power input of molding block, one end of the end the K connection inductance L21 of diode D22, the other end of inductance L21 connect the driving
The power take-off of control module, the end K of the drain electrode connection diode D22 of the high-voltage power pipe inside the processing unit and inductance
One end of L21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817244.9A CN105792466B (en) | 2014-12-24 | 2014-12-24 | Infrared induction drive control circuit and illumination control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817244.9A CN105792466B (en) | 2014-12-24 | 2014-12-24 | Infrared induction drive control circuit and illumination control circuit |
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| Publication Number | Publication Date |
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| CN105792466A CN105792466A (en) | 2016-07-20 |
| CN105792466B true CN105792466B (en) | 2019-02-26 |
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| CN201410817244.9A Active CN105792466B (en) | 2014-12-24 | 2014-12-24 | Infrared induction drive control circuit and illumination control circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106647904A (en) * | 2016-08-29 | 2017-05-10 | 广州御银自动柜员机科技有限公司 | Optical sensing module |
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|---|---|---|---|---|
| KR100778931B1 (en) * | 2006-11-24 | 2007-11-22 | 김진영 | Automatic lighting switch for infant and the disabled |
| CN202085341U (en) * | 2010-12-20 | 2011-12-21 | 惠州市斯科电气照明有限公司 | LED lamp capable of adjusting power automatically based on human body induction |
| CN202503734U (en) * | 2012-03-12 | 2012-10-24 | 珠海市金日科技有限公司 | Pyroelectric infrared controlled light-emitting diode (LED) lamp power supply |
| CN202634773U (en) * | 2012-04-23 | 2012-12-26 | 环能新创(北京)节能科技有限公司 | Human body sensing LED lamp |
| CN203708578U (en) * | 2014-01-09 | 2014-07-09 | 深圳市勤仕达照明有限公司 | Infrared inductive circuit |
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2014
- 2014-12-24 CN CN201410817244.9A patent/CN105792466B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100778931B1 (en) * | 2006-11-24 | 2007-11-22 | 김진영 | Automatic lighting switch for infant and the disabled |
| CN202085341U (en) * | 2010-12-20 | 2011-12-21 | 惠州市斯科电气照明有限公司 | LED lamp capable of adjusting power automatically based on human body induction |
| CN202503734U (en) * | 2012-03-12 | 2012-10-24 | 珠海市金日科技有限公司 | Pyroelectric infrared controlled light-emitting diode (LED) lamp power supply |
| CN202634773U (en) * | 2012-04-23 | 2012-12-26 | 环能新创(北京)节能科技有限公司 | Human body sensing LED lamp |
| CN203708578U (en) * | 2014-01-09 | 2014-07-09 | 深圳市勤仕达照明有限公司 | Infrared inductive circuit |
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| CN105792466A (en) | 2016-07-20 |
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Effective date of registration: 20200107 Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Patentee after: Shenzhen BYD Microelectronics Co., Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: Biyadi Co., Ltd. |
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Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. |