CN106332353A - LED double-control type sampling holding type energy-saving control system - Google Patents
LED double-control type sampling holding type energy-saving control system Download PDFInfo
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- CN106332353A CN106332353A CN201610788310.3A CN201610788310A CN106332353A CN 106332353 A CN106332353 A CN 106332353A CN 201610788310 A CN201610788310 A CN 201610788310A CN 106332353 A CN106332353 A CN 106332353A
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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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Abstract
The invention discloses an LED double-control type sampling holding type energy-saving control system. The system is characterized in that the system is mainly formed by a single-chip microcomputer; a buzzer, a power supply, a controller, a signal processing unit and a brightness sensor which are connected with the single-chip microcomputer; an LED lamp connected with the controller; and an infrared probe HW connected with the signal processing unit; and the signal processing unit is formed by a processing chip U, a field effect transistor MOS1, a triode VT3, a sampling holding circuit, a second-order filtering amplification circuit, and a signal output conditioning circuit etc. According to the system, turn-on and turn-off of the LED lamp are controlled through personnel turnover condition in the application range of the LED lamp and the brightness condition in the application range thereof, acquired personnel turnover information can be accurately analyzed and processed, and accurate control of the LED can be ensured.
Description
Technical field
The present invention relates to the technical field of electronic equipment, specifically refer to a kind of LED double control-type sampling maintenance Energy Saving Control
System.
Background technology
Requisite electrical equipment during LED illumination lamp has become as people's life now.But, existing LED illumination lamp is adopted more
Realize being turned on and off lamp by the mode of Non-follow control and the mode of acoustic control, i.e. the mode of Non-follow control is to pass through shell fragment
Formula mechanical switch is turned on and off LED, owing to this control mode cannot realize automatically turning on or closing LED, works as people
Withdraw from a room for a long time, when forgetting to close illuminating lamp, will result in energy waste；The mode of acoustic control is then to pass through sound sensor
Sound in LED range is acquired by device, and when sound transducer has collected sound, LED etc. then can be lit,
As long as this control mode use time have in its span of control with night by day sound will lightening LED lamp, this controlling party
Formula can not control the open and close of LED according to the brightness of the scope that LED uses, and this just causes energy significant wastage.
Therefore it provides a kind of LED energy-saving control system is the task of top priority.
Summary of the invention
It is an object of the invention to overcome LED control system of the prior art can not flow according to ambient brightness and personnel
Emotionally condition controls the defect of open and close of LED, and the present invention provides a kind of LED double control-type sampling maintenance Energy Saving Control
System.
The present invention is achieved through the following technical solutions: a kind of LED double control-type sampling maintenance energy-saving control system, mainly
By single-chip microcomputer, the buzzer being all connected with single-chip microcomputer, power supply, controller, signal processing unit and luminance sensor, with control
The LED that device is connected, and the infrared probe HW composition being connected with signal processing unit；Described signal processing unit by
Processing chip U, field effect transistor MOS1, audion VT3, positive pole is connected with the source electrode of field effect transistor MOS1, negative pole and audion
The polar capacitor C6 that the base stage of VT3 is connected, one end is connected with the source electrode of field effect transistor MOS1, the other end and audion VT3
Resistance R7, the P pole that is connected of emitter stage be connected with the emitter stage of audion VT3, N pole after resistance R8 with process chip U
The diode D3 that is connected of COM pin, one end be connected with the colelctor electrode of audion VT3 after ground connection, the other end and process core
The inductance L2 that the COM pin of sheet U is connected, negative pole is connected with the drain electrode of field effect transistor MOS1, the CF of positive pole and process chip U
The polar capacitor C7 that pin is connected, the second-order filter being connected with the CM pin processing chip U and infrared probe HW respectively
Amplifying circuit, is serially connected in the sampling hold circuit between second-order filter amplifying circuit and the IN pin processing chip U, and difference
With the signal output modulate circuit composition processing the PWM pin of chip U and OUT pin and COM pin is connected；Described field is imitated
Should pipe MOS1 grid with process chip U CC pin be connected, its drain electrode also with process chip U CM pin be connected；Institute
State the grounded collector of audion VT3；The GND pin ground connection of described process chip U, its VS pin then with outside 12V unidirectional current
Source is connected；Described signal output modulate circuit is connected with single-chip microcomputer.
Further, described sampling hold circuit is by amplifier P3, audion VT5, audion VT6, and positive pole is through resistance R18
The polar capacitor C13 that base stage with audion VT5 is connected afterwards, negative pole is connected with second-order filter amplifying circuit, one end and pole
The positive pole of property electric capacity C13 is connected, the resistance R19 of other end ground connection, positive pole after resistance R20 with the colelctor electrode of audion VT5
Be connected, the polar capacitor C16 of minus earth, negative pole be connected with the emitter stage of audion VT5 after ground connection, positive pole through resistance
The polar capacitor C14 that after R15, colelctor electrode with audion VT6 is connected, positive pole is connected with the grid of field effect transistor MOS2, negative
Polar capacitor C15, the P pole that pole positive pole with amplifier P3 after resistance R21 is connected is connected with the positive pole of polar capacitor C13
Connect, diode D7 that N pole is connected with the source electrode of field effect transistor MOS2 after resistance R16, the base stage phase of one end and audion VT6
Connect, the adjustable resistance R17 that is connected with the drain electrode of field effect transistor MOS2 of the other end, the emitter stage phase of one end and audion VT6
Resistance R22, the P pole that connection, the other end are connected with the outfan of amplifier P3 is connected with the positive pole of amplifier P3, N pole warp
The diode D8 that after resistance R23, outfan with amplifier P3 is connected, and after negative pole is connected with the negative pole of amplifier P3
The polar capacitor C17 composition that ground connection, positive pole outfan with amplifier P3 after resistance R24 is connected；Described amplifier P3's
Outfan is also connected with the IN pin processing chip U.
Described second-order filter amplifying circuit by amplifier P1, audion VT1, audion VT2, positive pole after resistance R3 with put
The polar capacitor C2 that positive pole is connected, negative pole is connected with infrared probe HW of big device P1, positive pole and the negative pole of amplifier P1
Be connected, polar capacitor C4 that negative pole is connected with the base stage of audion VT1, one end is connected with the negative pole of amplifier P1, separately
The resistance R4 that one end is connected with the base stage of audion VT1, positive pole is connected with the base stage of audion VT2, negative pole is through inductance L1
Polar capacitor C5, the P pole that negative pole with amplifier P1 is connected afterwards negative pole with polar capacitor C5 after resistance R6 is connected, N
The diode D2 that pole negative pole with amplifier P1 after resistance R5 is connected, positive pole is connected with the outfan of amplifier P1, negative
Polar capacitor C3, the P pole that pole is connected with the negative pole of polar capacitor C13 positive pole with amplifier P1 after resistance R2 is connected, N
The diode D1 that pole is connected with the negative pole of polar capacitor C3, and negative pole is connected with the positive pole of amplifier P1, positive pole warp can
The polar capacitor C1 composition being connected with the N pole of diode D1 after adjusting resistance R1；The grounded collector of described audion VT1, its
Emitter stage is connected with the N pole of diode D2；After the colelctor electrode of described audion VT2 is connected with the CM pin processing chip U
Ground connection, its emitter stage are connected with the negative pole of polar capacitor C3.
Described signal output modulate circuit is connected with the OUT pin processing chip U by amplifier P2, audion VT4, positive pole
Connect, polar capacitor C9, P pole that negative pole positive pole with amplifier P2 after resistance R11 is connected after resistance R9 with audion VT4
The diode D4 that emitter stage is connected, N pole outfan with amplifier P2 after adjustable resistance R10 is connected, positive pole and
Polar capacitor C8, the P pole of ground connection and process after the emitter stage of audion VT4 is connected, negative pole is connected with the P pole of diode D4
The diode D5 that the PWM pin of chip U is connected, N pole is connected with the base stage of audion VT4, positive pole after resistance R13 with three
The colelctor electrode of pole pipe VT4 is connected, polar capacitor C11, the P pole of minus earth after resistance R12 with the negative pole phase of amplifier P2
Connect, the diode D6 that is connected of the outfan of N pole amplifier P2, positive pole is connected with the outfan of amplifier P2, negative pole and
The polar capacitor C10 that single-chip microcomputer is connected, and positive pole is connected with amplifier P2 outfan after resistance R14, negative pole with put
The polar capacitor C12 composition of ground connection after the negative pole of device P2 is connected greatly；The negative pole of described polar capacitor C9 the most respectively with process core
The COM pin of sheet U is connected with the emitter stage of audion VT4.
For guaranteeing the practical effect of the present invention, described process chip U the most preferentially have employed and comes into the integrated chip of AD736
Realize.The most described infrared probe HW is KR-P900 Radix Rumicis infrared probe.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) present invention can be by the flow of personnel situation in LED range and the brightness feelings in its range
The open and close of LED are controlled by condition, and the flow of personnel information gathered can be divided by the present invention accurately
Analysis processes, and makes the present invention control the open and close of LED more accurate, ensures that LED can accurate be controlled by the present invention
System, can preferably realize people to LED control system in the requirement of energy-conservation aspect.
(2) the interference signal during the present invention can dock the collection of letters number eliminates or suppresses, and makes the signal of telecommunication more steady；And
The bandwidth of viewdata signal can also be limited by the present invention, to filter the High-frequency Interference in viewdata signal and spike hair
Thorn, and the High-frequency Interference in viewdata signal is filtered, make viewdata signal more totally, more steadily, effectively
Improve the present invention accuracy to signal processing, ensure that LED can accurate be controlled by the present invention.
(3) analogue signal level value during by conversion can be carried out constant by the present invention, effectively ensures simulation
The precision of signal conversion, can make the analogue signal of input being kept stable by the signal level before changing, ensure that this
The bright accuracy to signal processing, effectively raises the present invention and LED opens and closes the accuracy controlled.
(4) infrared probe of the present invention is KR-P900 type Radix Rumicis infrared probe, and this infrared probe can carry out Radix Rumicis
The detection of 180 °, it has the advantages such as accuracy is high, sensitivity is strong, thus it is ensured that the present invention is to LED range personnel
The accuracy of monitoring.
Accompanying drawing explanation
Fig. 1 is the overall structure block diagram of the present invention.
Fig. 2 is the electrical block diagram of the signal processing unit of the present invention.
Fig. 3 is the electrical block diagram of the sampling hold circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As it is shown in figure 1, the present invention is mainly by single-chip microcomputer, the buzzer being all connected with single-chip microcomputer, power supply, controller, letter
Number processing unit and luminance sensor, the LED being connected with controller, and the infrared ray being connected with signal processing unit
Probe HW composition.
For guaranteeing the reliability service of the present invention, described single-chip microcomputer preferentially uses FM8PE59A single-chip microcomputer to realize.Should
The TI0 pin of FM8PE59A single-chip microcomputer is connected with buzzer, and PIN0 pin is connected with signal processing unit, PIN1 pin with
Luminance sensor is connected, and POUT1 pin is connected with controller, and pvc pipe foot is connected with power supply.Described power supply is 12V
DC voltage, this 12V DC voltage is that whole control system is powered.
During operation, described luminance sensor preferentially uses RA-1805NO luminance sensor to realize；This RA-1805NO
Photoconductive resistance it is provided with, photoconductive resistance when environment has brightness when brightness is detected by this luminance sensor in luminance sensor
Resistance becomes big, i.e. luminance sensor output LOW current signal；When brightness is detected by luminance sensor, environment does not has brightness
Time photoconductive resistance resistance diminish, i.e. luminance sensor output HIGH current signal.This luminance sensor is used for monitoring LED and uses
In the range of ambient brightness, and export corresponding current signal to single according to the ambient brightness in the LED range of monitoring
Sheet machine,.Meanwhile, the infrared probe HW of the present invention is KR-P900 Radix Rumicis infrared probe, and this infrared probe can be to LED
Range carry out the detection of Radix Rumicis 180 °, i.e. detect with or without personnel in LED range, this infrared probe
The information detected being transferred to signal processing unit, the interference signal in the docking collection of letters number of this signal processing unit is carried out simultaneously
Eliminate or suppression, make the signal of telecommunication more steady；And the bandwidth of viewdata signal can also be limited by the present invention, to filter
High-frequency Interference in viewdata signal and spike burr, and the High-frequency Interference in viewdata signal is filtered, make
Viewdata signal more totally, more steady；Signal conversion image data signal after this signal processing unit then will process transmits
To single-chip microcomputer.The infrared probe HW of the present invention and luminance sensor are collectively forming a dual-switch.
The present invention in use, single-chip microcomputer receive infrared probe HW transmission for having people in LED range
Time interior, single-chip microcomputer receive low current signal time will not export control signal to controller, LED also will not be unlocked.
Only monitoring the information of people for high current signal and infrared probe HW and be transferred to list simultaneously in luminance sensor transmission
During sheet machine, single-chip microcomputer just can export control voltage to controller, controller just outputting drive voltage, LED is just unlocked.Work as people
When leaving the investigative range that infrared probe HW visits, infrared probe is visited HW and this signal is fed back to single-chip microcomputer, at this moment single-chip microcomputer
Output controls electric current and begins to send out prompting sound to buzzer, buzzer, and this prompting sound is used for reminding people's LED automatically to close
Closing, this single-chip microcomputer is then automatically stopped after buzzer works 3 seconds and LED is exported electric current, and now LED is closed, the most single
Sheet machine also can return to reopen state.
Wherein, described signal processing unit is as in figure 2 it is shown, described signal processing unit is by processing chip U, field effect transistor
MOS1, audion VT3, resistance R7, resistance R8, polar capacitor C6, polar capacitor C7, inductance L2, diode D3, sampling keeps electricity
Road, second-order filter amplifying circuit, and signal output modulate circuit composition.
During connection, the positive pole of polar capacitor C6 is connected with the source electrode of field effect transistor MOS1, negative pole and the base of audion VT3
Pole is connected.One end of resistance R7 is connected with the source electrode of field effect transistor MOS1, and the other end is connected with the emitter stage of audion VT3
Connect.The P pole of diode D3 is connected with the emitter stage of audion VT3, N pole after resistance R8 with process chip U COM pin phase
Connect.One end of inductance L2 be connected with the colelctor electrode of audion VT3 after ground connection, the other end and process chip U COM pin phase
Connect.
Meanwhile, the negative pole of polar capacitor C7 is connected with the drain electrode of field effect transistor MOS1, positive pole and the CF pipe processing chip U
Foot is connected.Second-order filter amplifying circuit is connected with the CM pin processing chip U and infrared probe HW respectively.Sampling keeps
Circuit is serially connected between second-order filter amplifying circuit and the IN pin processing chip U.Signal output modulate circuit respectively with process
The PWM pin of chip U is connected with OUT pin and COM pin.
The grid of described field effect transistor MOS1 is connected with the CC pin processing chip U, and its drain electrode is also with process chip U's
CM pin is connected；The grounded collector of described audion VT3；The GND pin ground connection of described process chip U, its VS pin is then
It is connected with outside 12V DC source；Described signal output modulate circuit is connected with single-chip microcomputer.
During enforcement, for guaranteeing the practical effect of the present invention, described process chip U the most preferentially have employed as AD736 collection
Chip is become to realize.Described field effect transistor MOS1, audion VT3, resistance R7, resistance R8, polar capacitor C6, polar capacitor C7,
Inductance L2 and diode D3 forms high impedance device, and the electromagnetic interference signal in signal can be eliminated or press down by this high impedance device
System.The signal output part that the input of described second-order filter amplifying circuit visits HW with infrared probe is connected；And signal output
The outfan of modulate circuit is then connected with the PIN0 pin of FM8PE59A single-chip microcomputer.
Further, described second-order filter amplifying circuit is by amplifier P1, audion VT1, audion VT2, adjustable resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, polar capacitor C1, polar capacitor C2, polar capacitor C3, polarity electricity
Hold C4, polar capacitor C45, inductance L1, diode D1, and diode D2 composition.
During connection, the positive pole of polar capacitor C2 positive pole with amplifier P1 after resistance R3 is connected, negative pole and infrared ray
Probe HW is connected.The positive pole of polar capacitor C4 is connected with the negative pole of amplifier P1, and negative pole is connected with the base stage of audion VT1
Connect.One end of resistance R4 is connected with the negative pole of amplifier P1, and the other end is connected with the base stage of audion VT1.Polar capacitor
The positive pole of C5 is connected with the base stage of audion VT2, and negative pole negative pole with amplifier P1 after inductance L1 is connected.
Wherein, the P pole of diode D2 negative pole with polar capacitor C5 after resistance R6 is connected, N pole after resistance R5 with
The negative pole of amplifier P1 is connected.The positive pole of polar capacitor C3 is connected with the outfan of amplifier P1, negative pole and polar capacitor
The negative pole of C13 is connected.The P pole of diode D1 positive pole with amplifier P1 after resistance R2 is connected, N pole and polar capacitor C3
Negative pole be connected.The negative pole of polar capacitor C1 is connected with the positive pole of amplifier P1, positive pole after adjustable resistance R1 with two poles
The N pole of pipe D1 is connected.
The grounded collector of described audion VT1, its emitter stage is connected with the N pole of diode D2；Described audion VT2
Colelctor electrode with process chip U CM pin be connected after ground connection, its emitter stage is connected with the negative pole of polar capacitor C3.
Further, described signal output modulate circuit is by amplifier P2, audion VT4, resistance R9, adjustable resistance
R10, resistance R11, resistance R12, resistance R13, resistance R14, polar capacitor C9, polar capacitor C10, polar capacitor C11, polarity electricity
Hold C12, diode D4, diode D5, and diode D6 composition.
During connection, the positive pole of polar capacitor C9 with process chip U OUT pin be connected, negative pole after resistance R11 with put
The positive pole of big device P2 is connected.The P pole of diode D4 emitter stage with audion VT4 after resistance R9 is connected, and N pole is through adjustable
After resistance R10, the outfan with amplifier P2 is connected.The positive pole of polar capacitor C8 with the emitter stage of audion VT4 be connected
Connect, negative pole be connected with the P pole of diode D4 after ground connection.
Meanwhile, the P pole of diode D5 is connected with the PWM pin processing chip U, and N pole is connected with the base stage of audion VT4
Connect.The positive pole of polar capacitor C11 colelctor electrode with audion VT4 after resistance R13 is connected, minus earth.The P of diode D6
Pole negative pole with amplifier P2 after resistance R12 is connected, and the outfan of N pole amplifier P2 is connected.Polar capacitor C10 is just
Pole is connected with the outfan of amplifier P2, and negative pole is connected with the PIN0 pin of FM8PE59A single-chip microcomputer.Polar capacitor C12's
Positive pole is connected with amplifier P2 outfan after resistance R14, negative pole be connected with the negative pole of amplifier P2 after ground connection.Described pole
Property electric capacity C9 negative pole be connected with the emitter stage processing the COM pin of chip U and audion VT4 the most respectively.
As it is shown on figure 3, described sampling hold circuit is by amplifier P3, audion VT5, audion VT6, field effect transistor
MOS2, resistance R15, resistance R16, adjustable resistance R17, resistance R18, resistance R19, resistance R20, resistance R21, resistance R22, resistance
R23, resistance R24, polar capacitor C13, polar capacitor C14, polar capacitor C15, polar capacitor C16, polar capacitor C17, two poles
Pipe D7, and diode D8 composition.
During connection, the positive pole of polar capacitor C13 base stage with audion VT5 after resistance R18 is connected, negative pole and second order
Filter amplification circuit is connected.One end of resistance R19 is connected with the positive pole of polar capacitor C13, other end ground connection.Polar capacitor
The positive pole of C16 colelctor electrode with audion VT5 after resistance R20 is connected, minus earth.
Wherein, the negative pole of polar capacitor C14 be connected with the emitter stage of audion VT5 after ground connection, positive pole is after resistance R15
It is connected with the colelctor electrode of audion VT6.The positive pole of polar capacitor C15 is connected with the grid of field effect transistor MOS2, negative pole warp
After resistance R21, the positive pole with amplifier P3 is connected.The P pole of diode D7 is connected with the positive pole of polar capacitor C13, N pole warp
After resistance R16, the source electrode with field effect transistor MOS2 is connected.One end of adjustable resistance R17 is connected with the base stage of audion VT6,
The other end is connected with the drain electrode of field effect transistor MOS2.
Meanwhile, one end of resistance R22 is connected with the emitter stage of audion VT6, the other end and the outfan of amplifier P3
It is connected.The P pole of diode D8 is connected with the positive pole of amplifier P3, N pole after resistance R23 with the outfan phase of amplifier P3
Connect.The negative pole of polar capacitor C17 be connected with the negative pole of amplifier P3 after ground connection, positive pole after resistance R24 with amplifier P3
Outfan be connected.The outfan of described amplifier P3 is also connected with the IN pin processing chip U.
Audion VT4 in the sampling hold circuit of the present invention and audion VT5 defines a feedback loop, polar capacitor
C14 is included in feedback loop, thus voltage can be kept to have higher precision and the linearity.Amplifier P3 is used for exporting pulse, field
Effect pipe MOS2 is used for holding switching of sampling, and i.e. keeps polar capacitor C14 to store sampled signal information.Thus this sampling keeps electricity
Analogue signal level value during by conversion can be carried out constant by road, the effective precision ensureing analogue signal conversion,
The analogue signal of input can be made being kept stable by the signal level before changing, ensure that the present invention standard to signal processing
Really property, effectively raises the present invention and LED opens and closes the accuracy controlled.
The interference signal that the signal processing unit of the present invention can dock in the collection of letters number eliminates or suppresses, and makes the signal of telecommunication more
Add steadily；And the bandwidth of viewdata signal can also be limited by the present invention, to filter the high frequency in viewdata signal
Interference and spike burr, and the High-frequency Interference in viewdata signal is filtered, make viewdata signal more totally, more
Steadily, effectively raise the present invention accuracy to signal processing, ensure that LED can accurate be controlled by the present invention.
As it has been described above, the present invention just can well be realized.
Claims (6)
1. a LED double control-type sampling maintenance energy-saving control system, it is characterised in that main by single-chip microcomputer, equal and single-chip microcomputer
Buzzer, power supply, controller, signal processing unit and the luminance sensor being connected, the LED being connected with controller, with
And the infrared probe HW composition being connected with signal processing unit；Described signal processing unit is by processing chip U, field effect transistor
MOS1, audion VT3, the pole that positive pole is connected with the source electrode of field effect transistor MOS1, negative pole is connected with the base stage of audion VT3
Property electric capacity C6, the resistance that one end is connected with the source electrode of field effect transistor MOS1, the other end is connected with the emitter stage of audion VT3
Two poles that R7, P pole is connected with the emitter stage of audion VT3, N pole is connected with the COM pin processing chip U after resistance R8
Pipe D3, one end be connected with the colelctor electrode of audion VT3 after the electricity that is connected with the COM pin of process chip U of ground connection, the other end
Sense L2, the polar capacitor that negative pole is connected with the drain electrode of field effect transistor MOS1, positive pole is connected with the CF pin of process chip U
C7, the second-order filter amplifying circuit being connected with the CM pin processing chip U and infrared probe HW respectively, it is serially connected in second order filter
Ripple amplifying circuit and process chip U IN pin between sampling hold circuit, and respectively with process chip U PWM pin
The signal output modulate circuit composition being connected with OUT pin and COM pin；The grid of described field effect transistor MOS1 and process
The CC pin of chip U is connected, its drain electrode is also connected with the CM pin processing chip U；The colelctor electrode of described audion VT3 connects
Ground；The GND pin ground connection of described process chip U, its VS pin are then connected with outside 12V DC source；Described signal exports
Modulate circuit is connected with single-chip microcomputer.
A kind of LED double control-type sampling maintenance energy-saving control system the most according to claim 1, it is characterised in that described
Sampling hold circuit by amplifier P3, audion VT5, audion VT6, positive pole after resistance R18 with the base stage phase of audion VT5
Connect, the polar capacitor C13 that is connected with second-order filter amplifying circuit of negative pole, one end is connected with the positive pole of polar capacitor C13,
The resistance R19 of other end ground connection, positive pole colelctor electrode with audion VT5 after resistance R20 is connected, the polarity electricity of minus earth
Hold C16, negative pole be connected with the emitter stage of audion VT5 after ground connection, positive pole after resistance R15 with the colelctor electrode of audion VT6
The polar capacitor C14 being connected, positive pole is connected with the grid of field effect transistor MOS2, negative pole after resistance R21 with amplifier P3
Polar capacitor C15, the P pole that is connected of positive pole be connected with the positive pole of polar capacitor C13, N pole after resistance R16 with field effect
The diode D7 that the source electrode of pipe MOS2 is connected, one end is connected with the base stage of audion VT6, the other end and field effect transistor MOS2
The adjustable resistance R17 that is connected of drain electrode, one end is connected with the emitter stage of audion VT6, the other end is defeated with amplifier P3's
Go out resistance R22, the P pole that is connected of end be connected with the positive pole of amplifier P3, N pole after resistance R23 with the output of amplifier P3
The diode D8 that is connected of end, and negative pole be connected with the negative pole of amplifier P3 after ground connection, positive pole after resistance R24 with amplification
The polar capacitor C17 composition that the outfan of device P3 is connected；The outfan of described amplifier P3 also with process chip U IN pin
It is connected.
A kind of LED double control-type sampling maintenance energy-saving control system the most according to claim 2, it is characterised in that described
Second-order filter amplifying circuit by amplifier P1, audion VT1, audion VT2, positive pole after resistance R3 with the positive pole of amplifier P1
Be connected, polar capacitor C2 that negative pole is connected with infrared probe HW, positive pole is connected with the negative pole of amplifier P1, negative pole with
The polar capacitor C4 that the base stage of audion VT1 is connected, one end is connected with the negative pole of amplifier P1, the other end and audion
The resistance R4 that the base stage of VT1 is connected, positive pole is connected with the base stage of audion VT2, negative pole after inductance L1 with amplifier P1
Polar capacitor C5, the P pole that is connected of negative pole negative pole with polar capacitor C5 after resistance R6 be connected, N pole is after resistance R5
The diode D2 being connected with the negative pole of amplifier P1, positive pole is connected with the outfan of amplifier P1, negative pole and polar capacitor
Polar capacitor C3, the P pole that the negative pole of C13 is connected positive pole with amplifier P1 after resistance R2 is connected, N pole and polar capacitor
The diode D1 that the negative pole of C3 is connected, and negative pole is connected with the positive pole of amplifier P1, positive pole after adjustable resistance R1 with
The polar capacitor C1 composition that the N pole of diode D1 is connected；The grounded collector of described audion VT1, its emitter stage and two poles
The N pole of pipe D2 is connected；The colelctor electrode of described audion VT2 with process chip U CM pin be connected after ground connection, its emitter stage
It is connected with the negative pole of polar capacitor C3.
A kind of LED double control-type sampling maintenance energy-saving control system the most according to claim 3, it is characterised in that described
Signal output modulate circuit is by amplifier P2, and audion VT4, positive pole is connected with the OUT pin of process chip U, negative pole is through electricity
After resistance R11 polar capacitor C9, the P pole that is connected with the positive pole of amplifier P2 after resistance R9 with the emitter stage phase of audion VT4
Connect, diode D4 that N pole outfan with amplifier P2 after adjustable resistance R10 is connected, positive pole and audion VT4
Polar capacitor C8, the P pole of ground connection and the PWM processing chip U after emitter stage is connected, negative pole is connected with the P pole of diode D4
The diode D5 that pin is connected, N pole is connected with the base stage of audion VT4, positive pole after resistance R13 with audion VT4's
Colelctor electrode is connected, polar capacitor C11, the P pole of minus earth negative pole with amplifier P2 after resistance R12 is connected, N pole is put
The diode D6 that the outfan of big device P2 is connected, positive pole is connected with the outfan of amplifier P2, negative pole is connected with single-chip microcomputer
The polar capacitor C10 connect, and positive pole is connected with amplifier P2 outfan after resistance R14, negative pole is negative with amplifier P2's
Pole be connected after ground connection polar capacitor C12 composition；The negative pole of described polar capacitor C9 is managed with the COM processing chip U the most respectively
Foot is connected with the emitter stage of audion VT4.
A kind of LED double control-type sampling maintenance energy-saving control system the most according to claim 4, it is characterised in that described
Processing chip U is the integrated chip of AD736.
A kind of LED double control-type sampling maintenance energy-saving control system the most according to claim 5, it is characterised in that described
Infrared probe HW is KR-P900 Radix Rumicis infrared probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788310.3A CN106332353A (en) | 2016-08-31 | 2016-08-31 | LED double-control type sampling holding type energy-saving control system |
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| CN201610788310.3A CN106332353A (en) | 2016-08-31 | 2016-08-31 | LED double-control type sampling holding type energy-saving control system |
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| CN106332353A true CN106332353A (en) | 2017-01-11 |
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| CN201610788310.3A Withdrawn CN106332353A (en) | 2016-08-31 | 2016-08-31 | LED double-control type sampling holding type energy-saving control system |
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