CN107726722A - A kind of current protection formula automatic deodorizing control system based on anti-jamming circuit - Google Patents
A kind of current protection formula automatic deodorizing control system based on anti-jamming circuit Download PDFInfo
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- CN107726722A CN107726722A CN201711090842.0A CN201711090842A CN107726722A CN 107726722 A CN107726722 A CN 107726722A CN 201711090842 A CN201711090842 A CN 201711090842A CN 107726722 A CN107726722 A CN 107726722A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit, it is characterized in that, mainly by process chip U2, current buffering protection circuit, diode rectifier U1, gas sensor QM, transformer T, triode VT1, polar capacitor C1, inductance L1, voltage-regulator diode D2, polar capacitor C3, polar capacitor C9, anti-jamming circuit, pulse control circuit, the second-order filter circuit being serially connected between polar capacitor C1 positive pole and process chip U2 IN pins, and it is serially connected in the multi resonant vibration triggers circuit composition between the Same Name of Ends of anti-jamming circuit and transformer T primary side inductance coils.The present invention can be sterilized to refrigerator, sterilized, deodorization automatically according to the peculiar smell concentration in the refrigerator detected by gas sensor QM, ensured that the present invention can effectively eliminate the peculiar smell in refrigerator, effectively inhibited the biochemical reaction of vegetables or fruit internal.
Description
Technical field
It is a kind of based on anti-jamming circuit specifically the present invention relates to a kind of deodorant for refregerator control system
Current protection formula automatic deodorizing control system.
Background technology
Traditional refrigerator is to adsorb the peculiar smell in refrigerator, but this deodorization side using the porous suction-operated of activated carbon
Method is frequently necessary to change activated carbon without bactericidal action, therefore it is using very inconvenient.With the development of science and technology, people open
Begin to carry out deodorization to refrigerator using ozone to substitute activated carbon.Ozone not only can be sterilized and be sterilized to refrigerator, and
The biochemical reaction of vegetables or fruit internal can also be suppressed, play certain preservation.
At present, light-illuminating of the deodorant for refregerator more when refrigerator doors are opened in case is controlled to by the way of on photoelectric receiving tube
The corona discharge of Deodorising processed, make air ionization and produce ozone, this control mode can not be to ice when refrigerator doors are not opened
Deodorization is carried out in case, and the control system also has the problem of voltage stability difference of output, cause peculiar smell in refrigerator not
It can in time be eliminated and be easily damaged with odor removal, so as to accelerate the biochemical reaction inside veterinary antibiotics.
Therefore it provides a kind of can carry out deodorization, the stable electricity of and can output to refrigerator automatically according to the peculiar smell in refrigerator
The deodorant for refregerator control system of pressure is the task of top priority.
The content of the invention
It is an object of the invention to overcome deodorant for refregerator control system of the prior art can neither be according to different in refrigerator
Taste carries out automatic deodorizing, and the defects of voltage stability difference of output also be present, there is provided it is a kind of based on anti-jamming circuit
Current protection formula automatic deodorizing control system.
The present invention is achieved through the following technical solutions:A kind of current protection formula automatic deodorizing control based on anti-jamming circuit
System processed, mainly by process chip U2, diode rectifier U1, gas sensor QM, transformer T, triode VT1, it is serially connected in
Current buffering protection circuit between the Same Name of Ends and non-same polarity of transformer T secondary inductance coils, with three after positive electrode resistance R1
The polar capacitor C1 that pole pipe VT1 colelctor electrode is connected, negative pole is connected with gas sensor QM, one end is with polar capacitor C1's
The inductance L1 that positive pole is connected, the other end is connected with triode VT1 emitter stage, it is serially connected in polar capacitor C1 positive pole and place
The second-order filter circuit between chip U2 IN pins is managed, N poles are connected with process chip U2 VPOS pins, P poles are through resistance
The voltage-regulator diode D2 being connected after R4 with diode rectifier U1 cathode output end, positive pole and diode rectifier U1 are just
The polar capacitor C3 that pole output end is connected, negative pole is grounded after being connected with diode rectifier U1 cathode output end, positive pole
It is connected with the Same Name of Ends of transformer T secondary inductance coils, negative pole is connected with the non-same polarity of transformer T secondary inductance coils
Polar capacitor C9, the anti-jamming circuit being connected with process chip U2 FDBK pins, be serially connected in anti-jamming circuit and transformation
Pulse control circuit between the non-same polarity of device T primary side inductance coils, and it is serially connected in anti-jamming circuit and transformer T primary sides
Multi resonant vibration triggers circuit composition between the Same Name of Ends of inductance coil;The GPOS pins of the process chip U2 and transformer T
The non-same polarity of primary side inductance coil is connected, its VPOS pin is connected with diode rectifier U1 cathode output end, it
GND pins are grounded.
The current buffering protection circuit is by FET MOS101, triode VT101, diode D101, one end and two
The inductance L101 that pole pipe D101 P poles are connected, the other end is connected with FET MOS101 grid, one end and field-effect
Pipe MOS101 source electrode is connected, resistance R101, the P pole of other end ground connection is connected with FET MOS101 drain electrode, N poles
The diode D102 being connected with triode VT101 base stage, positive pole is connected with triode VT101 emitter stage, negative pole connects
The polar capacitor C101 on ground, positive pole is connected with diode D101 N poles, negative pole is connected with triode VT101 colelctor electrode
Polar capacitor C102, positive pole be connected after adjustable resistance R102 with triode VT101 colelctor electrode negative pole ground connection polarity
Electric capacity C103, one end is connected with diode D101 N poles, the inductance that the other end is connected with polar capacitor C103 positive pole
L102, and the electricity that one end is connected with polar capacitor C103 positive pole, the other end is connected with polar capacitor C103 negative pole
Hinder R103 compositions;The P poles of the diode D101 are connected with the Same Name of Ends of transformer T secondary inductance coils;The field-effect
Pipe MOS101 grid is connected with the non-same polarity of transformer T secondary inductance coils;The positive pole of the polar capacitor C103 with
Negative pole is collectively forming the output end of current buffering protection circuit.
The second-order filter circuit is by amplifier P3, amplifier P4, triode VT8, the positive pole phase of positive pole and amplifier P3
The input and the polar capacitor C15 that is connected with polar capacitor C1 positive pole of connection, negative pole as second-order filter circuit, positive pole
Be connected after resistance R20 with polar capacitor C15 negative pole, negative pole ground connection polar capacitor C14, P pole after resistance R21 with putting
Diode D10, the N poles that big device P3 positive pole is connected, N poles are connected after resistance R24 with amplifier P3 output end are through electricity
It is connected after resistance R23 with triode VT8 base stage, the diode that P poles are connected after resistance R22 with amplifier P3 negative pole
D11, the inductance L2 that one end is connected with triode VT8 colelctor electrode, the other end is grounded after being connected with diode D11 P poles,
The polar capacitor C16 that positive pole is connected with amplifier P3 output end, negative pole is connected with triode VT8 emitter stage, negative pole
It is connected with amplifier P4 positive pole, the polar capacitor C17 that positive pole is connected with amplifier P3 output end, one end and amplifier
P4 negative pole is connected, the resistance R25 of other end ground connection, and negative pole is connected with amplifier P41 output end, positive pole is through resistance
The polar capacitor C18 being connected after R26 with amplifier P4 positive pole, and one end are connected with amplifier P4 positive pole, are another
Hold the adjustable resistance R27 compositions being connected with polar capacitor C18 negative pole;The output end of the amplifier P4 is as second-order filter
The output end of circuit is simultaneously connected with process chip U2 IN pins.
The pulse control circuit by amplifier P1, amplifier P2, triode VT6, triode VT7, photoelectrical coupler DS,
It is connected after positive electrode resistance R13 with amplifier P1 negative pole, negative pole is sequentially after resistance R14 and resistance R16 with amplifier P2's
Polar capacitor C11, the N pole that output end is connected is connected with photoelectrical coupler DS first input end, P poles are through adjustable resistance
The diode D7 being grounded after R12, positive pole is connected with amplifier P1 positive pole, negative pole is connected with adjustable resistance R12 adjustable end
Polar capacitor C10, the N pole connect is connected with triode VT7 emitter stage, output end of the P poles after resistance R15 with amplifier P1
The diode D8 being connected, the pole that negative pole is connected with triode VT7 emitter stage, positive pole is connected with amplifier P2 positive pole
Property electric capacity C13, P poles are connected after resistance R18 with polar capacitor C13 negative pole, N poles and resistance R14 and resistance R16 connection
The diode D9 that is connected of point, positive pole is connected with triode VT7 colelctor electrode, after negative pole adjustable resistance R19 with diode D8
The polar capacitor C12 that is connected of N poles, and one end is connected with triode VT6 colelctor electrode, the other end and triode VT7
Base stage be connected resistance R17 composition;The negative pole ground connection of the amplifier P2;The second input of the photoelectrical coupler DS
Ground connection, its second output end are connected with triode VT6 base stage, its first output end and transformer T primary side inductance coils are non-
Same Name of Ends is connected;The grounded emitter of the triode VT6;The negative pole of the polar capacitor C12 is connected with anti-jamming circuit
Connect.
The anti-jamming circuit is by triode VT2, triode VT3, NOT gate IC1, P pole after resistance R2 with process chip U2
FDBK pins be connected, the diode D1 that N poles are connected with triode VT2 colelctor electrode, negative pole after resistance R5 with three poles
Polar capacitor C5, the P pole that pipe VT2 emitter stage is connected, NAND gate IC1 backward end is connected after positive electrode resistance R6 and three poles
The diode D3 that pipe VT2 base stage is connected, N poles are grounded after being connected with polar capacitor C5 negative pole, positive pole is after resistance R7
It is connected with polar capacitor C5 positive pole, the polar capacitor C4 of negative pole ground connection, current collection of the positive pole after resistance R3 with triode VT3
The polar capacitor C2 that pole is connected, negative pole is connected with polar capacitor C12 negative pole, and one end and triode VT3 transmitting
The adjustable resistance R8 compositions that pole is connected, the other end is connected with polar capacitor C5 positive pole;The emitter stage of the triode VT2
NAND gate IC1 forward end is connected;The colelctor electrode of the triode VT3 is connected with polar capacitor C4 positive pole, its base stage
The output end of anti-jamming circuit is collectively forming with polar capacitor C5 positive pole and is connected with multi resonant vibration triggers circuit.
The multi resonant vibrates triggers circuit by triode VT4, triode VT5, NOT gate IC2, NOT gate IC3, NOT gate IC4, field
Effect pipe MOS, positive pole is connected after resistance R9 with triode VT5 colelctor electrode, negative pole is connected with triode VT4 base stage
Polar capacitor C6, N pole be connected with triode VT5 emitter stage, two poles that P poles are connected with triode VT4 emitter stage
Pipe D5, the resistance R11 that one end is connected with triode VT5 emitter stage, NAND gate IC4 forward end is connected after the other end,
Polar capacitor C7, the N poles that negative pole NAND gate IC3 forward end is connected, positive pole is connected with triode VT5 base stage are through resistance
The diode D4 that NAND gate IC2 backward end is connected after R10, P poles are connected with polar capacitor C6 positive pole, positive pole NAND gate
The polar capacitor C8 that IC4 backward end is connected, negative pole is connected with FET MOS grid, and P poles and FET
The voltage-regulator diode D6 compositions that MOS source electrode is connected, N poles are connected with the Same Name of Ends of transformer T primary side inductance coils;It is described
Polar capacitor C6 positive pole is connected with triode VT3 base stage;The colelctor electrode and polar capacitor C5 of the triode VT4 is just
Pole is connected;NAND gate IC2 forward end is connected the forward end of the NOT gate IC3 with NOT gate IC4 forward end respectively, its is anti-
To end, then NAND gate IC2 backward end is connected with NOT gate IC4 backward end respectively;The grounded drain of the FET MOS.
For the practical effect of the present invention, the process chip U2 is then preferentially realized using AD603 integrated chips.
The present invention compared with prior art, has advantages below and beneficial effect:
(1) present invention can go out to refrigerator automatically according to the peculiar smell concentration in the refrigerator detected by gas sensor QM
Bacterium, sterilization, deodorization, ensure that the present invention can effectively eliminate the peculiar smell in refrigerator, effectively inhibit vegetables or fruit
Internal biochemical reaction.
(2) the current buffering protection circuit that the present invention is set can utilize the characteristic suppression input electricity that inductive current can not be mutated
The climbing of stream, the characteristic that can not be mutated using capacitance voltage suppress the climbing of the voltage of input, the circuit and by inductance
It can preferably prevent high current by ensuring that the present invention can export stable voltage electricity after being concatenated with diode
Stream, the stability that refrigerator carries out odor removal work is effectively raised, extend refrigerator well and carry out making for odor removal
Use the life-span.
(3) present invention can filter to the gas sensor QM electric signals transmitted, effectively eliminate in electric signal and disturb
Signal, make electric signal more steady, ensure that the present invention can accurately control Deodorising to carry out deodorization to refrigerator.
(4) present invention can be controlled to current pulse shape, and the present invention can also carry out limitation to peak current and prevent
Non-return road current spikes damage Deodorising, so as to improve the stability and reliability of present invention control Deodorising deodorization.
(5) present invention can be eliminated or suppressed to the electromagnetic interference of voltage, is improved the pulse value of output voltage, is made output
Voltage and current keeps stable, so as to improve the stability that present invention control Deodorising carries out deodorization to refrigerator.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the electrical block diagram of the pulse control circuit of the present invention.
Fig. 3 is the electrical block diagram of the second-order filter circuit of the present invention.
Fig. 4 is the electrical block diagram of the current buffering protection circuit of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment and its accompanying drawing, but embodiments of the present invention are not
It is limited to this.
Embodiment
As shown in figure 1, the present invention is mainly by process chip U2, diode rectifier U1, gas sensor QM, transformer T,
Current buffering protection circuit, triode VT1, resistance R1, resistance R4, polar capacitor C1, polar capacitor C3, polar capacitor C9, surely
Press diode D2, inductance L1, second-order filter circuit, pulse control circuit, anti-jamming circuit, and multi resonant vibration triggers circuit group
Into.
During connection, current buffering protection circuit be serially connected in the Same Name of Ends of transformer T secondary inductance coils and non-same polarity it
Between.It is connected after polar capacitor C1 positive electrode resistance R1 with triode VT1 colelctor electrode, its negative pole is connected with gas sensor QM
Connect.Inductance L1 one end is connected with polar capacitor C1 positive pole, its other end is connected with triode VT1 emitter stage.Two
Rank filter circuit is serially connected between polar capacitor C1 positive pole and process chip U2 IN pins.Voltage-regulator diode D2 N poles with
Process chip U2 VPOS pins are connected, its cathode output end of P poles with diode rectifier U1 after resistance R4 is connected.
Meanwhile polar capacitor C3 positive pole is connected with diode rectifier U1 cathode output end, its negative pole and two poles
Pipe rectifier U1 cathode output end is grounded after being connected.Polar capacitor C9 positive pole is same with transformer T secondary inductance coils
End is connected name, its negative pole is connected with the non-same polarity of transformer T secondary inductance coils.Anti-jamming circuit and process chip U2
FDBK pins be connected.Pulse control circuit is serially connected in the non-same polarity of anti-jamming circuit and transformer T primary side inductance coils
Between.Multi resonant vibration triggers circuit is serially connected between the Same Name of Ends of anti-jamming circuit and transformer T primary side inductance coils.
The GPOS pins of the process chip U2 are connected with the non-same polarity of transformer T primary side inductance coils, its VPOS
Pin is connected with diode rectifier U1 cathode output end, its GND pin ground connection;The transformer T secondary inductance coils
Same Name of Ends and non-same polarity be connected respectively with Deodorising;The input of the diode rectifier U1 is connected with external power source
Connect.
Further, the anti-jamming circuit is by triode VT2, triode VT3, NOT gate IC1, resistance R2, resistance R3, electricity
R5, resistance R6, resistance R7, adjustable resistance R8, polar capacitor C2, polar capacitor C4, polar capacitor C5, diode D1 are hindered, and
Diode D3 is formed.
During connection, diode D1 P poles are connected after resistance R2 with process chip U2 FDBK pins, its N pole and three
Pole pipe VT2 colelctor electrode is connected.Polar capacitor C5 negative pole is connected after resistance R5 with triode VT2 emitter stage, it
NAND gate IC1 backward end is connected after positive electrode resistance R6.Diode D3 P poles are connected with triode VT2 base stage, its N
Pole is grounded after being connected with polar capacitor C5 negative pole.Positive pole of the polar capacitor C4 positive pole after resistance R7 with polar capacitor C5
It is connected, its negative pole ground connection.Polar capacitor C2 positive pole is connected after resistance R3 with triode VT3 colelctor electrode, its negative pole
It is connected with polar capacitor C12 negative pole.Adjustable resistance R8 one end is connected with triode VT3 emitter stage, its other end
It is connected with polar capacitor C5 positive pole.
The emitter stage NAND gate IC1 of triode VT2 forward end is connected;The colelctor electrode of the triode VT3 with
Polar capacitor C4 positive pole is connected, its base stage and polar capacitor C5 positive pole be collectively forming anti-jamming circuit output end and with
Multi resonant vibration triggers circuit is connected.
Further, multi resonant vibration triggers circuit is by triode VT4, triode VT5, NOT gate IC2, NOT gate IC3,
NOT gate IC4, FET MOS, resistance R9, resistance R10, resistance R11, polar capacitor C6, polar capacitor C7, polar capacitor C8,
Diode D4, diode D5, and voltage-regulator diode D6 compositions.
During connection, polar capacitor C6 positive pole is connected after resistance R9 with triode VT5 colelctor electrode, its negative pole and three
Pole pipe VT4 base stage is connected.Diode D5 N poles are connected with triode VT5 emitter stage, its P pole is with triode VT4's
Emitter stage is connected.Resistance R11 one end is connected with triode VT5 emitter stage, after its other end NAND gate IC4 forward direction
End is connected.Polar capacitor C7 negative pole NAND gate IC3 forward end is connected, its positive pole is connected with triode VT5 base stage
Connect.Diode D4 N poles NAND gate IC2 backward end after resistance R10 is connected, its P pole and polar capacitor C6 positive pole phase
Connection.Polar capacitor C8 positive pole NAND gate IC4 backward end is connected, its negative pole is connected with FET MOS grid.
Voltage-regulator diode D6 P poles are connected with FET MOS source electrode, the Same Name of Ends of its N pole and transformer T primary side inductance coils
It is connected.
The positive pole of the polar capacitor C6 is connected with triode VT3 base stage;The colelctor electrode of the triode VT4 and pole
Property electric capacity C5 positive pole is connected;The forward end difference NAND gate IC2 forward end and NOT gate IC4 forward direction of the NOT gate IC3
End is connected, then NAND gate IC2 backward end is connected its backward end with NOT gate IC4 backward end respectively;The FET
MOS grounded drain.
As shown in Fig. 2 the pulse control circuit is by amplifier P1, amplifier P2, triode VT6, triode VT7, light
Electric coupler DS, adjustable resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, adjustable electric
R19, polar capacitor C10, polar capacitor C11, polar capacitor C12, polar capacitor C13, diode D7, diode D8 are hindered, and
Diode D9 is formed.
During connection, it is connected after polar capacitor C11 positive electrode resistance R13 with amplifier P1 negative pole, its negative pole sequentially passes through
It is connected after resistance R14 and resistance R16 with amplifier P2 output end.Diode D7 N poles and the first of photoelectrical coupler DS
Input is connected, its P pole is grounded after adjustable resistance R12.Polar capacitor C10 positive pole is connected with amplifier P1 positive pole
Connect, its negative pole is connected with adjustable resistance R12 adjustable end.Diode D8 N poles are connected with triode VT7 emitter stage,
Its output end of P poles with amplifier P1 after resistance R15 is connected.
Meanwhile polar capacitor C13 negative pole is connected with triode VT7 emitter stage, its positive pole and amplifier P2 just
Pole is connected.Diode D9 P poles are connected after resistance R18 with polar capacitor C13 negative pole, its N pole and resistance R14 and electricity
Resistance R16 tie point is connected.Polar capacitor C12 positive pole is connected with triode VT7 colelctor electrode, its negative pole adjustable resistance
It is connected after R19 with diode D8 N poles.Resistance R17 one end is connected with triode VT6 colelctor electrode, its other end with
Triode VT7 base stage is connected.
The negative pole ground connection of the amplifier P2;The second input end grounding of the photoelectrical coupler DS, its second output end
It is connected with triode VT6 base stage, its first output end is connected with transformer T primary side inductance coil non-same polarities;It is described
Triode VT6 grounded emitter;The negative pole of the polar capacitor C12 is connected with anti-jamming circuit.
As shown in figure 3, the second-order filter circuit is by amplifier P3, amplifier P4, triode VT8, resistance R20, resistance
R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, adjustable resistance R27, polar capacitor C14, polar capacitor
C15, polar capacitor C16, polar capacitor C17, polar capacitor C18, diode D10, diode D11, and inductance L2 compositions.
During connection, polar capacitor C15 positive pole is connected with amplifier P3 positive pole, its negative pole is as second-order filter circuit
Input and be connected with polar capacitor C1 positive pole.Polar capacitor C14 positive pole after resistance R20 with polar capacitor C15
Negative pole be connected, its negative pole ground connection.Diode D10 P poles are connected after resistance R21 with amplifier P3 positive pole, its N pole
Output end with amplifier P3 after resistance R24 is connected.Base of the diode D11 N poles after resistance R23 with triode VT8
Pole is connected, its negative pole of P poles with amplifier P3 after resistance R22 is connected.Inductance L2 one end and triode VT8 current collection
Pole is connected, its other end is grounded after being connected with diode D11 P poles.
Meanwhile polar capacitor C16 positive pole is connected with amplifier P3 output end, the hair of its negative pole and triode VT8
Emitter-base bandgap grading is connected.Polar capacitor C17 negative pole is connected with amplifier P4 positive pole, the output end phase of its positive pole and amplifier P3
Connection.Resistance R25 one end is connected with amplifier P4 negative pole, its other end ground connection.Polar capacitor C18 negative pole and amplification
Device P41 output end is connected, positive pole of its positive pole with amplifier P4 after resistance R26 is connected.Adjustable resistance R27 one end
It is connected with amplifier P4 positive pole, its other end is connected with polar capacitor C18 negative pole.The output end of the amplifier P4
As second-order filter circuit output end and be connected with process chip U2 IN pins.
As shown in figure 4, the current buffering protection circuit is by FET MOS101, triode VT101, diode
D101, diode D102, polar capacitor C101, polar capacitor C102, polar capacitor C103, resistance R101, adjustable resistance R102,
Resistance R103, inductance L101, and inductance L102 compositions.
During connection, inductance L101 one end is connected with diode D101 P poles, the other end and FET MOS101
Grid is connected.Resistance R101 one end is connected with FET MOS101 source electrode, other end ground connection.Diode D102's
P poles are connected with FET MOS101 drain electrode, N poles are connected with triode VT101 base stage.Polar capacitor C101 is just
Pole is connected with triode VT101 emitter stage, negative pole ground connection.
Wherein, polar capacitor C102 positive pole be connected with diode D101 N poles, negative pole and triode VT101 collection
Electrode is connected.Polar capacitor C103 positive pole is connected negative pole after adjustable resistance R102 with triode VT101 colelctor electrode
Ground connection.Inductance L102 one end is connected with diode D101 N poles, the other end is connected with polar capacitor C103 positive pole.
Resistance R103 one end is connected with polar capacitor C103 positive pole, the other end is connected with polar capacitor C103 negative pole.
The P poles of the diode D101 are connected with the Same Name of Ends of transformer T secondary inductance coils;The FET
MOS101 grid is connected with the non-same polarity of transformer T secondary inductance coils;The positive pole of the polar capacitor C103 is with bearing
Pole is collectively forming the output end of current buffering protection circuit and is connected with Deodorising, and operating voltage is provided for Deodorising.
During the current buffering protection circuit carrying out practically, resonant inductance L102 goes here and there as resonant inductance and diode D101
Connection, to realize the Zero Current Switch of the zero current turning-on of switching tube and diode D102, electric capacity C102 is used for realizing switching tube
Zero Current Switch, electric capacity C103 are used for changing energy.Diode D102 is used for realizing FET MOS101 and triode VT101
Between energy conversion.The characteristic that the current buffering circuit can not be mutated using inductance L101 electric currents suppresses diode D2 N poles
The climbing of the positive electricity electrode current of output, using polar capacitor C102, in diode D101 curent change, electric current can not be mutated
Characteristic suppress input electric current climbing, while by adjusting adjustable resistance R102 resistance, make on polar capacitor C103
Electric current remain stable state, ensuring that the control system of the present invention, to provide work stably for Deodorising electric
Stream.
During implementation, for the practical effect of the present invention, the gas sensor QM then preferentially employs XSAV12801 gas
Dependent sensor realizes that gas sensor QM is transferred to after the peculiar smell concentration information detected in refrigerator is converted into electric signal
Process chip U2, process chip U2 then enter according to the power of the electric signal to receiving with the baseline signal value in process chip U2
Row compares, so as to obtain the concentration value of peculiar smell in refrigerator, when the peculiar smell concentration value in refrigerator is too high, and process chip U2 output electricity
Signal, triode VT2 conductings ,+6V voltages are transferred to NOT gate IC1 through triode VT2, through NOT gate IC1 paraphase, export low level,
Triode VT3 conductings bleed off the electric charge on polar capacitor C5, triode VT4 conducting output high level, diode D5 cut-offs, by non-
The multi-resonant trigger starting of oscillation of door IC2 and NOT gate IC3 and NOT gate IC4 compositions, 1890Hz square wave is produced, wherein, NOT gate IC2
It is parallel connection buffer output stage with NOT gate IC3 and NOT gate IC4, square-wave signal is transferred to FET after being filtered by polar capacitor C8
MOS grid, export high-voltage pulse through transformer T after being amplified by FET MOS and give current buffering protection circuit, the electric current delays
The characteristic that rushing protection circuit can not be mutated using inductive current suppresses the climbing of input current, can not be mutated using capacitance voltage
Characteristic suppress input voltage climbing, the circuit and can preferably prevent height after inductance is concatenated with diode
Electric current is by so as to which current buffering protection circuit provides stable voltage and current for Deodorising.Now, Deodorising starts work
Make, refrigerator is sterilized, sterilized, deodorization, and the biochemical reaction inside veterinary antibiotics is suppressed.When process chip U2 is obtained
To the gas sensor QM peculiar smell concentration values that detect in refrigerator be less than baseline signal value when, process chip U will not then be exported
Electric signal, triode VT2 then disconnect, and Deodorising then must not be electric, and stopping is sterilized to refrigerator, sterilized, deodorization.
Meanwhile the present invention can filter to the gas sensor QM electric signals transmitted, effectively eliminate in electric signal and do
Signal is disturbed, makes electric signal more steady, ensures that the present invention can accurately control Deodorising to carry out deodorization to refrigerator.The present invention
Current pulse shape can be controlled, and the present invention can also carry out limitation to peak current and prevent loop current burr from damaging
Deodorising, so as to improve the stability and reliability of present invention control Deodorising deodorization.The present invention can be done to the electromagnetism of voltage
Disturb and eliminated or suppressed, improve the pulse value of output voltage, output voltage and electric current is kept stable, so as to improve this hair
Bright control Deodorising carries out the stability of deodorization to refrigerator.For the practical effect of the present invention, the process chip U2 is then
Preferentially realized using AD603 integrated chips.
According to above-described embodiment, you can realize the present invention well.
Claims (6)
1. a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit, it is characterised in that mainly by processing core
Piece U2, diode rectifier U1, gas sensor QM, transformer T, triode VT1, it is serially connected in transformer T secondary inductance coils
Same Name of Ends and non-same polarity between current buffering protection circuit, be connected with triode VT1 colelctor electrode after positive electrode resistance R1
Connect, the polar capacitor C1 that negative pole is connected with gas sensor QM, one end is connected with polar capacitor C1 positive pole, the other end with
The inductance L1 that triode VT1 emitter stage is connected, be serially connected in polar capacitor C1 positive pole and process chip U2 IN pins it
Between second-order filter circuit, N poles are connected with process chip U2 VPOS pins, P poles after resistance R4 with diode rectifier
The voltage-regulator diode D2 that U1 cathode output end is connected, positive pole are connected with diode rectifier U1 cathode output end, born
The polar capacitor C3 that pole is grounded after being connected with diode rectifier U1 cathode output end, positive pole and transformer T secondary inductances
The polar capacitor C9 that the Same Name of Ends of coil is connected, negative pole is connected with the non-same polarity of transformer T secondary inductance coils, with place
The anti-jamming circuit that reason chip U2 FDBK pins are connected, is serially connected in anti-jamming circuit and transformer T primary side inductance coils
Pulse control circuit between non-same polarity, and it is serially connected in the Same Name of Ends of anti-jamming circuit and transformer T primary side inductance coils
Between multi resonant vibration triggers circuit composition;The GPOS pins of the process chip U2 are non-with transformer T primary side inductance coils
Same Name of Ends is connected, its VPOS pin is connected with diode rectifier U1 cathode output end, its GND pin ground connection;It is described
Current buffering protection circuit is by FET MOS101, triode VT101, diode D101, one end and diode D101 P poles
It is connected, the inductance L101 that the other end is connected with FET MOS101 grid, one end and FET MOS101 source
Pole is connected, resistance R101, the P pole of other end ground connection is connected with FET MOS101 drain electrode, N poles and triode
The diode D102 that VT101 base stage is connected, positive pole is connected with triode VT101 emitter stage, the polarity of negative pole ground connection
Electric capacity C101, the polarity electricity that positive pole is connected with diode D101 N poles, negative pole is connected with triode VT101 colelctor electrode
Hold C102, positive pole be connected after adjustable resistance R102 with triode VT101 colelctor electrode negative pole ground connection polar capacitor C103,
The inductance L102, Yi Jiyi that one end is connected with diode D101 N poles, the other end is connected with polar capacitor C103 positive pole
The resistance R103 compositions that end is connected with polar capacitor C103 positive pole, the other end is connected with polar capacitor C103 negative pole;
The P poles of the diode D101 are connected with the Same Name of Ends of transformer T secondary inductance coils;The grid of the FET MOS101
Pole is connected with the non-same polarity of transformer T secondary inductance coils;The positive pole of the polar capacitor C103 is collectively forming with negative pole
The output end of current buffering protection circuit.
2. a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit according to claim 1, it is special
Sign is that the second-order filter circuit is connected by amplifier P3, amplifier P4, triode VT8, positive pole with amplifier P3 positive pole
Connect, input and the polar capacitor C15 that with polar capacitor C1 positive pole is connected of the negative pole as second-order filter circuit, positive pole warp
Be connected after resistance R20 with polar capacitor C15 negative pole, negative pole ground connection polar capacitor C14, P pole after resistance R21 with amplification
Diode D10, the N poles that device P3 positive pole is connected, N poles are connected after resistance R24 with amplifier P3 output end are through resistance
It is connected after R23 with triode VT8 base stage, the diode D11 that P poles are connected after resistance R22 with amplifier P3 negative pole,
The inductance L2 that one end is connected with triode VT8 colelctor electrode, the other end is grounded after being connected with diode D11 P poles, positive pole
It is connected with amplifier P3 output end, the polar capacitor C16 that negative pole is connected with triode VT8 emitter stage, negative pole is with putting
Big device P4 positive pole is connected, the polar capacitor C17 that positive pole is connected with amplifier P3 output end, and one end is with amplifier P4's
Negative pole is connected, the resistance R25 of other end ground connection, and negative pole is connected with amplifier P41 output end, positive pole is after resistance R26
The polar capacitor C18 being connected with amplifier P4 positive pole, and one end is connected with amplifier P4 positive pole, the other end and pole
Property electric capacity C18 the adjustable resistance R27 compositions that are connected of negative pole;The output end of the amplifier P4 is as second-order filter circuit
Output end is simultaneously connected with process chip U2 IN pins.
3. a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit according to claim 2, it is special
Sign is, the pulse control circuit by amplifier P1, amplifier P2, triode VT6, triode VT7, photoelectrical coupler DS,
It is connected after positive electrode resistance R13 with amplifier P1 negative pole, negative pole is sequentially after resistance R14 and resistance R16 with amplifier P2's
Polar capacitor C11, the N pole that output end is connected is connected with photoelectrical coupler DS first input end, P poles are through adjustable resistance
The diode D7 being grounded after R12, positive pole is connected with amplifier P1 positive pole, negative pole is connected with adjustable resistance R12 adjustable end
Polar capacitor C10, the N pole connect is connected with triode VT7 emitter stage, output end of the P poles after resistance R15 with amplifier P1
The diode D8 being connected, the pole that negative pole is connected with triode VT7 emitter stage, positive pole is connected with amplifier P2 positive pole
Property electric capacity C13, P poles are connected after resistance R18 with polar capacitor C13 negative pole, N poles and resistance R14 and resistance R16 connection
The diode D9 that is connected of point, positive pole is connected with triode VT7 colelctor electrode, after negative pole adjustable resistance R19 with diode D8
The polar capacitor C12 that is connected of N poles, and one end is connected with triode VT6 colelctor electrode, the other end and triode VT7
Base stage be connected resistance R17 composition;The negative pole ground connection of the amplifier P2;The second input of the photoelectrical coupler DS
Ground connection, its second output end are connected with triode VT6 base stage, its first output end and transformer T primary side inductance coils are non-
Same Name of Ends is connected;The grounded emitter of the triode VT6;The negative pole of the polar capacitor C12 is connected with anti-jamming circuit
Connect.
4. a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit according to claim 3, it is special
Sign is, the anti-jamming circuit is by triode VT2, triode VT3, NOT gate IC1, P pole after resistance R2 with process chip U2
FDBK pins be connected, the diode D1 that N poles are connected with triode VT2 colelctor electrode, negative pole after resistance R5 with three poles
Polar capacitor C5, the P pole that pipe VT2 emitter stage is connected, NAND gate IC1 backward end is connected after positive electrode resistance R6 and three poles
The diode D3 that pipe VT2 base stage is connected, N poles are grounded after being connected with polar capacitor C5 negative pole, positive pole is after resistance R7
It is connected with polar capacitor C5 positive pole, the polar capacitor C4 of negative pole ground connection, current collection of the positive pole after resistance R3 with triode VT3
The polar capacitor C2 that pole is connected, negative pole is connected with polar capacitor C12 negative pole, and one end and triode VT3 transmitting
The adjustable resistance R8 compositions that pole is connected, the other end is connected with polar capacitor C5 positive pole;The emitter stage of the triode VT2
NAND gate IC1 forward end is connected;The colelctor electrode of the triode VT3 is connected with polar capacitor C4 positive pole, its base stage
The output end of anti-jamming circuit is collectively forming with polar capacitor C5 positive pole and is connected with multi resonant vibration triggers circuit.
5. a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit according to claim 4, it is special
Sign is that the multi resonant vibration triggers circuit is by triode VT4, triode VT5, NOT gate IC2, NOT gate IC3, NOT gate IC4, field effect
Should pipe MOS, positive pole is connected after resistance R9 with triode VT5 colelctor electrode, negative pole is connected with triode VT4 base stage
Polar capacitor C6, N pole is connected with triode VT5 emitter stage, the diode that P poles are connected with triode VT4 emitter stage
D5, the resistance R11 that one end is connected with triode VT5 emitter stage, NAND gate IC4 forward end is connected after the other end, bear
Polar capacitor C7, the N poles that pole NAND gate IC3 forward end is connected, positive pole is connected with triode VT5 base stage are through resistance
The diode D4 that NAND gate IC2 backward end is connected after R10, P poles are connected with polar capacitor C6 positive pole, positive pole NAND gate
The polar capacitor C8 that IC4 backward end is connected, negative pole is connected with FET MOS grid, and P poles and FET
The voltage-regulator diode D6 compositions that MOS source electrode is connected, N poles are connected with the Same Name of Ends of transformer T primary side inductance coils;It is described
Polar capacitor C6 positive pole is connected with triode VT3 base stage;The colelctor electrode and polar capacitor C5 of the triode VT4 is just
Pole is connected;NAND gate IC2 forward end is connected the forward end of the NOT gate IC3 with NOT gate IC4 forward end respectively, its is anti-
To end, then NAND gate IC2 backward end is connected with NOT gate IC4 backward end respectively;The grounded drain of the FET MOS.
6. a kind of current protection formula automatic deodorizing control system based on anti-jamming circuit according to claim 5, it is special
Sign is that the process chip U2 is AD603 integrated chips.
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CN201711090842.0A CN107726722A (en) | 2017-11-08 | 2017-11-08 | A kind of current protection formula automatic deodorizing control system based on anti-jamming circuit |
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CN201711090842.0A CN107726722A (en) | 2017-11-08 | 2017-11-08 | A kind of current protection formula automatic deodorizing control system based on anti-jamming circuit |
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CN201711090842.0A Pending CN107726722A (en) | 2017-11-08 | 2017-11-08 | A kind of current protection formula automatic deodorizing control system based on anti-jamming circuit |
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