CN105979652A - Signal emission conditioning circuit based signal processing system for light-controlled LED - Google Patents
Signal emission conditioning circuit based signal processing system for light-controlled LED Download PDFInfo
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- CN105979652A CN105979652A CN201610459825.9A CN201610459825A CN105979652A CN 105979652 A CN105979652 A CN 105979652A CN 201610459825 A CN201610459825 A CN 201610459825A CN 105979652 A CN105979652 A CN 105979652A
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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 a signal emission conditioning circuit based signal processing system for a light-controlled LED. The signal processing system is characterized by mainly comprising a processing chip U, a triode VT1, a diode D2, a diode D3, a low-pass filter circuit, the signal emission conditioning circuit, a signal bias correcting circuit and a signal buffering circuit, wherein the signal bias correcting circuit is connected between the FDBK pin of the processing chip U and the collector electrode of the diode VT1 in series; and the signal buffering circuit is connected between the signal emission conditioning circuit and the VOUT pin of the processing chip U in series. By adoption of the signal processing system, the harmonics generated by the input signal due to external interference electric waves can be eliminated or restrained; in addition, the bandwidth of the output signal can be adjusted; the output signal can be consistent to the input collected signal so as to ensure the accuracy of signal processing of the signal processing system; and in addition, the accuracy of the light-controlled LED control system on the opening and closing control of the LED lamp is effectively ensured.
Description
Technical field
The present invention relates to electronic applications, specifically, be a kind of light-operated LED launching modulate circuit based on signal
Use signal processing system.
Background technology
At present, due to LED have that energy consumption is low, the feature such as length in service life and safety and environmental protection, it is
Become one of main product of people's life lighting.People's many employings acoustic control or light-operated control system in life
System realizes the open and close to LED.Light-operated LED control system can use according to LED because of it
The brightness of environment controls the open and close of LED, and can effectively meet people to LED energy-conservation
The requirement of aspect, and enjoy the favor of people.But, the signal processing of existing light-operated LED control system
Luminance signal is easily processed inaccurate by extraneous Electromagnetic Interference by system, causes the light-operated control system can not root
Intensity of illumination according to environment controls the open and close of LED accurately, thus cannot well meet people
Requirement at energy-conservation aspect.
Can the signal processing system of process accurate to luminance signal be the task of top priority therefore it provides a kind of.
Summary of the invention
The signal processing system that it is an object of the invention to overcome light-operated LED control system of the prior art is easy
By extraneous Electromagnetic Interference, luminance signal is processed inaccurate defect, it is provided that one send out based on signal
Penetrate the light-operated LED signal processing system of modulate circuit.
The present invention is achieved through the following technical solutions: a kind of light-operated LED launching modulate circuit based on signal
By signal processing system, mainly by processing chip U, audion VT1, concatenation processes the FDBK of chip U
Signal offset correction circuit between the colelctor electrode of pin and audion VT1, N pole is with process chip U's
Two poles that FDBK pin is connected, P pole is connected with the COM pin processing chip U after resistance R6
Pipe D2, P pole is connected with the VNEG pin processing chip U after resistance R7, N pole and audion VT1
The diode D3 that is connected of base stage, be connected with the VINP pin processing chip U and GNEG pin respectively
The low-pass filter circuit connect, the signal being connected with audion VT1 emitter stage and process chip U respectively is sent out
Penetrate modulate circuit, and be serially connected between the VOUT pin that signal launches modulate circuit and process chip U
Signal damping circuit forms；The colelctor electrode of described audion VT1 is connected with the FDBK pin processing chip U
Connect.
Described signal offset correction circuit is by audion VT2, audion VT3, and positive pole is through adjustable resistance R24
Afterwards the base stage with audion VT3 be connected, negative pole as signal offset correction circuit input and with process
The polar capacitor C15 that the FDBK pin of chip U is connected, positive pole after resistance R21 with polar capacitor C15
Negative pole be connected, after polar capacitor C14, the N pole adjustable resistance R26 of minus earth with audion VT3
The diode D9 that colelctor electrode is connected, P pole negative pole with polar capacitor C14 after resistance R23 is connected,
The polarity electricity that negative pole is connected with the base stage of audion VT2, positive pole is connected with the negative pole of polar capacitor C15
Hold C16, N pole be connected with the colelctor electrode of audion VT2, P pole after resistance R22 with polar capacitor C16
Diode D7, the P pole that is connected of positive pole emitter stage with audion VT3 after resistance R27 be connected,
N pole is as the outfan of signal offset correction circuit the diode that is connected with the colelctor electrode of audion VT1
D8, and positive pole colelctor electrode with audion VT2 after resistance R25 is connected, negative pole is through resistance R28
The polar capacitor C17 composition being connected with the N pole of diode D8 afterwards；The emitter stage of described audion VT2
It is connected with the adjustable end of adjustable resistance R24.
Described signal damping electricity routing amplifier P3, positive pole is connected with the positive pole of amplifier P3, negative pole conduct
The input of signal damping circuit the polar capacitor C10 being connected with the VOUT pin processing chip U,
N pole negative pole with amplifier P3 after resistance R15 is connected, P pole after resistance R13 with polar capacitor
The diode D5 that the negative pole of C10 is connected, negative pole negative pole with amplifier P3 after resistance R16 is connected,
The polar capacitor C11 that positive pole is connected with the P pole of diode D5 after resistance R14, positive pole is through resistance R20
Afterwards the outfan with amplifier P3 be connected, the polar capacitor C12 of minus earth, negative pole is after resistance R19
Be connected with the outfan of amplifier P3, positive pole positive pole with amplifier P3 after resistance R17 is connected
Polar capacitor C13, and P pole is connected with the positive pole of amplifier P3, N pole after resistance R18 with polarity
The diode D6 composition that the negative pole of electric capacity C13 is connected；The minus earth of described polar capacitor C11；Institute
The outfan stating amplifier P3 as the outfan of signal damping circuit and is connected with signal transmitting modulate circuit
Connect.
Described low-pass filter circuit is by amplifier P1, and positive pole is connected with the positive pole of amplifier P1, negative pole conduct
The polar capacitor C1 of the input of low-pass filter circuit, one end is connected with the negative pole of polar capacitor C1, separately
The resistance R1 of one end ground connection, positive pole negative pole with amplifier P1 after resistance R2 is connected, minus earth
Polar capacitor C2, positive pole positive pole with amplifier P 1 after resistance R3 is connected, negative pole and amplifier P1
Polar capacitor C3, the P pole that is connected of outfan be connected with the positive pole of amplifier P1, N pole is through resistance
The diode D1 that after R4, negative pole with polar capacitor C3 is connected, and the output of negative pole and amplifier P1
The polar capacitor C4 that end is connected, positive pole is connected with the GNEG pin processing chip U after resistance R5
Composition；The outfan of described amplifier P1 is connected with the VINP pin processing chip U.
Described signal launches modulate circuit by field effect transistor MOS, amplifier P2, N pole and field effect transistor MOS
Drain electrode be connected, P pole after resistance R8 with the diode that is connected of VPOS pin processing chip U
D4, negative pole outfan with amplifier P2 after resistance R11 is connected, positive pole is imitated with field after resistance R9
Should the polar capacitor C5 that is connected of the drain electrode of pipe MOS, one end is connected with the source electrode of field effect transistor MOS,
The adjustable resistance R10 that the other end is connected with the outfan of amplifier P2, negative pole and field effect transistor MOS
The polar capacitor C6 that source electrode is connected, positive pole is connected with the positive pole of amplifier P2, positive pole and audion VT1
The polar capacitor C7 that emitter stage is connected, negative pole negative pole with amplifier P2 after resistance R12 is connected,
Positive pole is connected with the outfan of amplifier P2, negative pole launches the polarity of outfan of modulate circuit as signal
Electric capacity C8, and positive pole is connected with the outfan of amplifier P2, the negative pole phase of negative pole and polar capacitor C8
The polar capacitor C9 composition connected；The minus earth of described polar capacitor C7；Described field effect transistor MOS
Grid be connected with the outfan of amplifier P3.
For the practical effect of the present invention, described process chip U the most preferentially uses the integrated chip of AD603
Realize.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) input signal can be produced by the present invention because of external interference electric wave Harmonics elimination or suppression；And
The bandwidth of output signal can also be adjusted by the present invention, makes output signal consistent with the collection signal of input,
Ensure that the present invention accuracy to signal processing, effectively ensure that light-operated LED control system pair
The accuracy opening and closing control of LED.
(2) the signal offset drift caused because of reasons such as temperature in energy signal processing of the present invention is corrected, and makes
The dead point held stationary of signal, thus improve the present invention accuracy to signal processing.
(3) present invention can improve the switching rate of the signal swing that signal exports on a large scale, effectively raises
Light-operated LED control system opens and closes the speed and accuracy controlled to LED, thus well full
Foot people are in the requirement of energy-conservation aspect.
(4) the process chip of the present invention have employed the integrated chip of AD603 and realizes, this chip performance stable with
External circuit combines the accuracy effectively raising the present invention to signal processing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the signal damping circuit of the present invention.
Fig. 3 is the electrical block diagram of signal offset correction circuit.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but the enforcement of the present invention
Mode is not limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by processing chip U, audion VT1, concatenation processes chip U's
Signal offset correction circuit between the colelctor electrode of FDBK pin and audion VT1, N pole and process chip
The FDBK pin of U is connected, P pole is connected with the COM pin processing chip U after resistance R6
Diode D2, P pole is connected with the VNEG pin processing chip U after resistance R7, N pole and three poles
The diode D3 that the base stage of pipe VT1 is connected, respectively with VINP pin and the GNEG processing chip U
The low-pass filter circuit that pin is connected, is connected with audion VT1 emitter stage and process chip U respectively
Signal launch modulate circuit, and be serially connected in signal launch modulate circuit with process chip U VOUT pipe
Signal damping circuit composition between foot；The colelctor electrode of described audion VT1 and the FDBK processing chip U
Pin is connected.
Wherein, described low-pass filter circuit is by amplifier P1, resistance R1, resistance R2, resistance R3, resistance
R4, resistance R5, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor C4, and
Diode D1 forms.
During connection, the positive pole of polar capacitor C1 is connected with the positive pole of amplifier P1, its negative pole is as low pass
The input of filter circuit is also connected with luminance sensor.One end of resistance R1 is negative with polar capacitor C1's
Pole is connected, its other end ground connection.The positive pole of polar capacitor C2 after resistance R2 with the negative pole of amplifier P1
Be connected, its minus earth.The positive pole of polar capacitor C3 after resistance R3 with the positive pole phase of amplifier P 1
Connect, its negative pole is connected with the outfan of amplifier P1.
Meanwhile, the P pole of diode D1 is connected with the positive pole of amplifier P1, its N pole is after resistance R4
It is connected with the negative pole of polar capacitor C3.The negative pole of polar capacitor C4 is connected with the outfan of amplifier P1,
Its positive pole is connected with the GNEG pin processing chip U after resistance R5.The output of described amplifier P1
The VINP pin held and process chip U is connected.
Further, described signal launches modulate circuit by field effect transistor MOS, amplifier P2, resistance R8,
Resistance R9, adjustable resistance R10, resistance R11, resistance R12, polar capacitor C5, polar capacitor C6,
Polar capacitor C7, polar capacitor C8, polar capacitor C9, diode D4 form.
During connection, the N pole of diode D4 is connected with the drain electrode of field effect transistor MOS, its P pole is through electricity
It is connected with the VPOS pin processing chip U after resistance R8.The negative pole of polar capacitor C5 is after resistance R11
Be connected with the outfan of amplifier P2, the drain electrode with field effect transistor MOS after resistance R9 of its positive pole is connected
Connect.One end of adjustable resistance R10 is connected with the source electrode of field effect transistor MOS, its other end and amplifier
The outfan of P2 is connected.
Meanwhile, the negative pole of polar capacitor C6 be connected with the source electrode of field effect transistor MOS, its positive pole and amplification
The positive pole of device P2 is connected.The positive pole of polar capacitor C7 is connected with the emitter stage of audion VT1, it is born
Pole negative pole with amplifier P2 after resistance R12 is connected.The positive pole of polar capacitor C8 and amplifier P2
Outfan be connected, its negative pole as signal launch modulate circuit outfan and with light-operated LED controller
It is connected.The positive pole of polar capacitor C9 is connected with the outfan of amplifier P2, its negative pole and polar capacitor
The negative pole of C8 is connected.The minus earth of described polar capacitor C7；The grid of described field effect transistor MOS with
The outfan of amplifier P3 is connected.
As in figure 2 it is shown, described signal damping electricity routing amplifier P3, resistance R13, resistance R14, resistance
R15, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20, polar capacitor C10,
Polar capacitor C11, polar capacitor C12, polar capacitor C13, diode D5, and diode D6 form.
During connection, the positive pole of polar capacitor C10 is connected with the positive pole of amplifier P3, its negative pole is as signal
The input of buffer circuit is also connected with the VOUT pin processing chip U.The N pole warp of diode D5
After resistance R15 the negative pole with amplifier P3 be connected, its P pole after resistance R13 with polar capacitor C10
Negative pole be connected.The negative pole of polar capacitor C11 negative pole with amplifier P3 after resistance R16 is connected,
Its positive pole P pole with diode D5 after resistance R14 is connected.
Meanwhile, the positive pole of polar capacitor C12 outfan with amplifier P3 after resistance R20 be connected, its
Minus earth.The negative pole of polar capacitor C13 outfan with amplifier P3 after resistance R19 is connected, it
Positive pole positive pole with amplifier P3 after resistance R17 is connected.The P pole of diode D6 and amplifier P3
Positive pole be connected, its N pole negative pole with polar capacitor C13 after resistance R18 is connected.Described polarity
The minus earth of electric capacity C11；The outfan of described amplifier P3 as signal damping circuit outfan and with
Signal is launched modulate circuit and is connected.
As it is shown on figure 3, described signal offset correction circuit is by audion VT2, audion VT3, resistance R21,
Resistance R22, resistance R23, adjustable resistance R24, resistance R25, adjustable resistance R26, resistance R27, electricity
Resistance R28, polar capacitor C14, polar capacitor C15, polar capacitor C16, polar capacitor C17, diode
D7, diode D8, and diode D9 form.
During connection, the positive pole of polar capacitor C15 base stage with audion VT3 after adjustable resistance R24 is connected
Connect, its negative pole as the input of signal offset correction circuit and is connected with the FDBK pin processing chip U
Connect.The positive pole of polar capacitor C14 negative pole with polar capacitor C15 after resistance R21 is connected, its negative pole
Ground connection.Be connected with the colelctor electrode of audion VT3 after the N pole adjustable resistance R26 of diode D9, its P
Pole negative pole with polar capacitor C14 after resistance R23 is connected.The negative pole of polar capacitor C16 and audion
The base stage of VT2 is connected, its positive pole is connected with the negative pole of polar capacitor C15.
Meanwhile, the N pole of diode D7 is connected with the colelctor electrode of audion VT2, its P pole is through resistance R22
Positive pole with polar capacitor C16 is connected afterwards.The P pole of diode D8 after resistance R27 with audion VT3
Emitter stage be connected, its N pole as signal offset correction circuit outfan and with the collection of audion VT1
Electrode is connected.The positive pole of polar capacitor C17 colelctor electrode with audion VT2 after resistance R25 is connected,
Its negative pole N pole with diode D8 after resistance R28 is connected.The emitter stage of described audion VT2 with
The adjustable end of adjustable resistance R24 is connected.
During enforcement, Harmonics elimination that input signal can be produced by the present invention because of external interference electric wave or suppression；
And the bandwidth of output signal can also be adjusted by the present invention, make the collection signal one of output signal and input
Cause, ensure that the present invention accuracy to signal processing.The present invention is by the signal conversion after analyzing and processing
For after data signal accurately and be transferred to the controller of light-operated LED control system, controller is then according to reception
Data signal control the open and close of LED.
Meanwhile, present invention employs the integrated chip of AD603 and be used as processing chip, this chip performance stable with
External circuit combines the accuracy effectively raising the present invention to signal processing.The present invention can improve signal
The switching rate of the signal swing exported on a large scale, effectively raises light-operated LED control system to LED
Open and close the speed and accuracy controlled, thus well meet people's requirement at energy-conservation aspect.
For the practical effect of the present invention, it is real that described process chip U the most preferentially uses the integrated chip of AD603
Existing.
According to above-described embodiment, can well realize the present invention.
Claims (6)
1. the light-operated LED signal processing system launching modulate circuit based on signal, it is characterised in that
Mainly by processing chip U, audion VT1, concatenation processes FDBK pin and the audion VT1 of chip U
Colelctor electrode between signal offset correction circuit, N pole with process chip U FDBK pin be connected, P
Diode D2, the P pole that pole is connected with the COM pin processing chip U after resistance R6 is through resistance R7
Afterwards with two poles that VNEG pin is connected, N pole is connected with the base stage of audion VT1 processing chip U
Pipe D3, the low-pass filter circuit being connected with the VINP pin processing chip U and GNEG pin respectively,
The signal being connected with audion VT1 emitter stage and process chip U respectively launches modulate circuit, and string
It is connected on the signal damping circuit composition that signal is launched between modulate circuit and the VOUT pin processing chip U；
The colelctor electrode of described audion VT1 is connected with the FDBK pin processing chip U.
A kind of light-operated LED signal launching modulate circuit based on signal the most according to claim 1
Processing system, it is characterised in that described signal offset correction circuit by audion VT2, audion VT3,
Positive pole base stage with audion VT3 after adjustable resistance R24 is connected, negative pole is as signal bias correction electricity
The input on road the polar capacitor C15 being connected with the FDBK pin processing chip U, positive pole is through resistance
After R21 the negative pole with polar capacitor C15 be connected, polar capacitor C14, the N pole adjustable electric of minus earth
Resistance R26 after be connected with the colelctor electrode of audion VT3, P pole after resistance R23 with polar capacitor C14's
The diode D9 that negative pole is connected, negative pole is connected with the base stage of audion VT2, positive pole and polar capacitor
Polar capacitor C16, the N pole that the negative pole of C15 is connected is connected with the colelctor electrode of audion VT2, P pole
Diode D7, the P pole that positive pole with polar capacitor C16 is connected after resistance R22 is after resistance R27
Be connected with the emitter stage of audion VT3, N pole as signal offset correction circuit outfan and with three poles
The diode D8 that the colelctor electrode of pipe VT1 is connected, and positive pole after resistance R25 with audion VT2's
The polar capacitor C17 that colelctor electrode is connected, negative pole is connected with the N pole of diode D8 after resistance R28
Composition；The emitter stage of described audion VT2 is connected with the adjustable end of adjustable resistance R24.
A kind of light-operated LED signal launching modulate circuit based on signal the most according to claim 2
Processing system, it is characterised in that described signal damping electricity routing amplifier P3, positive pole is with amplifier P3 just
Pole is connected, negative pole as the input of signal damping circuit and is connected with the VOUT pin processing chip U
Polar capacitor C10, the N pole connect negative pole with amplifier P3 after resistance R15 is connected, P pole is through resistance
The diode D5 that after R13, negative pole with polar capacitor C10 is connected, negative pole after resistance R16 with amplifier
The polar capacitor C11 that the negative pole of P3 is connected, positive pole is connected with the P pole of diode D5 after resistance R14,
Positive pole outfan with amplifier P3 after resistance R20 is connected, the polar capacitor C12 of minus earth, negative
Pole outfan with amplifier P3 after resistance R19 is connected, positive pole after resistance R17 with amplifier P3
The polar capacitor C13 that is connected of positive pole, and P pole is connected with the positive pole of amplifier P3, N pole is through electricity
The diode D6 composition being connected with the negative pole of polar capacitor C13 after resistance R18；Described polar capacitor C11
Minus earth；The outfan of described amplifier P3 as the outfan of signal damping circuit and is launched with signal
Modulate circuit is connected.
A kind of light-operated LED signal launching modulate circuit based on signal the most according to claim 3
Processing system, it is characterised in that described low-pass filter circuit is by amplifier P1, and positive pole is with amplifier P1 just
Pole is connected, negative pole is as the polar capacitor C1 of the input of low-pass filter circuit, one end and polar capacitor C1
Negative pole be connected, the resistance R1 of other end ground connection, positive pole after resistance R2 with the negative pole phase of amplifier P1
Connect, the polar capacitor C2 of minus earth, positive pole positive pole with amplifier P1 after resistance R3 is connected,
Polar capacitor C3, the P pole that negative pole is connected with the outfan of amplifier P1 is connected with the positive pole of amplifier P1
Connect, diode D1 that N pole negative pole with polar capacitor C3 after resistance R4 is connected, and negative pole with put
The outfan of big device P1 is connected, positive pole is connected with the GNEG pin processing chip U after resistance R5
Polar capacitor C4 composition；The outfan of described amplifier P1 is connected with the VINP pin processing chip U
Connect.
A kind of light-operated LED signal launching modulate circuit based on signal the most according to claim 4
Processing system, it is characterised in that described signal launches modulate circuit by field effect transistor MOS, amplifier P2,
N pole is connected with the drain electrode of field effect transistor MOS, P pole after resistance R8 with process chip U VPOS
The diode D4 that pin is connected, negative pole outfan with amplifier P2 after resistance R11 is connected, just
The polar capacitor C5 that pole is connected with the drain electrode of field effect transistor MOS after resistance R9, one end and field effect transistor
The adjustable resistance R10 that the source electrode of MOS is connected, the other end is connected with the outfan of amplifier P2, negative pole
Be connected with the source electrode of field effect transistor MOS, polar capacitor C6 that positive pole is connected with the positive pole of amplifier P2,
Positive pole is connected with the emitter stage of audion VT1, negative pole after resistance R12 with the negative pole phase of amplifier P2
The polar capacitor C7 connected, positive pole is connected with the outfan of amplifier P2, negative pole launches tune as signal
The polar capacitor C8 of the outfan of reason circuit, and positive pole is connected with the outfan of amplifier P2, negative pole
The polar capacitor C9 composition being connected with the negative pole of polar capacitor C8；The negative pole of described polar capacitor C7 connects
Ground；The grid of described field effect transistor MOS is connected with the outfan of amplifier P3.
A kind of light-operated LED signal launching modulate circuit based on signal the most according to claim 5
Processing system, it is characterised in that described process chip U is the integrated chip of AD603.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459825.9A CN105979652A (en) | 2016-06-22 | 2016-06-22 | Signal emission conditioning circuit based signal processing system for light-controlled LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459825.9A CN105979652A (en) | 2016-06-22 | 2016-06-22 | Signal emission conditioning circuit based signal processing system for light-controlled LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105979652A true CN105979652A (en) | 2016-09-28 |
Family
ID=57022593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459825.9A Pending CN105979652A (en) | 2016-06-22 | 2016-06-22 | Signal emission conditioning circuit based signal processing system for light-controlled LED |
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| CN (1) | CN105979652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793429A (en) * | 2017-03-23 | 2017-05-31 | 成都零智慧科技有限公司 | A kind of light-operated car lamp control system |
-
2016
- 2016-06-22 CN CN201610459825.9A patent/CN105979652A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793429A (en) * | 2017-03-23 | 2017-05-31 | 成都零智慧科技有限公司 | A kind of light-operated car lamp control system |
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Application publication date: 20160928 |