CN105978349A - Active band-pass filter circuit based switching power supply for dyer used for spray-painted leather - Google Patents
Active band-pass filter circuit based switching power supply for dyer used for spray-painted leather Download PDFInfo
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- CN105978349A CN105978349A CN201610411395.3A CN201610411395A CN105978349A CN 105978349 A CN105978349 A CN 105978349A CN 201610411395 A CN201610411395 A CN 201610411395A CN 105978349 A CN105978349 A CN 105978349A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33515—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with digital control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses an active band-pass filter circuit based switching power supply for a dyer used for spray-painted leather. The active band-pass filter circuit based switching power supply is characterized by mainly comprising a control chip U1, a transformer T, an overvoltage protection circuit, a current adjustment circuit, a field effect transistor MOS1, a polar capacitor C5, a diode D3, a polar capacitor C4, the active band-pass filter circuit which is connected between the overvoltage protection circuit and the non-dotted terminal of the primary side inductive coil L1 of the transformer T in series, and a photoelectric coupling switching circuit which is connected with the current adjustment circuit and the secondary side inductive coil L3 of the transformer T separately. By adoption of the active band-pass filter circuit based switching power supply, the high voltage pulse in the voltage and the high current ripple in the current can be effectively adjusted to enable the dynamic states of the voltage and the current to be kept stable so as to ensure that the active band-pass filter circuit based switching power supply can output stable voltage and current; and in addition, the stability of the drying temperature of the dyer used for the polymer spray-painted leather is ensured, and deformation or falling off of paint on the surface of the polymer shoe material leather is effectively prevented.
Description
Technical field
The present invention relates to electronic applications, specifically, be the spray of a kind of leather based on active bandpass filiter circuit
The Switching Power Supply of paint dehydrator.
Background technology
Along with high molecular leather is widely used in leatherware industry, at people's quality requirements to leatherware
While more and more higher, also the quality of high molecular leather is had higher requirement.But, produce
High-quality high molecular leather, it is critical only that macromolecule shoe material leather sprays paint this link of post-drying.
At present there is output voltage and unstable the asking of electric current in the spray paint Switching Power Supply of dehydrator of high molecular leather
Topic, causes high molecular leather to spray paint the drying temperature extremely unstable of dehydrator, causes macromolecule shoe material leather table
There is deformation or falls the defect of paint in face.
The dehydrator switch therefore it provides a kind of high molecular leather that can export stable voltage and current sprays paint
Power supply is the task of top priority.
Summary of the invention
It is an object of the invention to overcome the spray paint Switching Power Supply of dehydrator of high molecular leather of the prior art to deposit
In the defect that output voltage and electric current are unstable, it is provided that a kind of high molecular leather spray paint the switch electricity of dehydrator
Source.
The present invention is achieved through the following technical solutions: a kind of leather based on active bandpass filiter circuit sprays paint
The Switching Power Supply of dehydrator, mainly by control chip U, transformator T, field effect transistor MOS1, negative pole and field
The polarity electricity that the grid of effect pipe MOS1 is connected, positive pole is connected with the OUT pin of control chip U
Hold the drain electrode with field effect transistor MOS1 after resistance R13 of C5, N pole be connected, P pole and control chip U
The diode D3 that is connected of IFB pin, positive pole COMP with control chip U after resistance R12 manage
The polar capacitor C4 that foot is connected, negative pole is connected with the VFB pin of control chip U after resistance R11,
The overvoltage crowbar being connected with VCC pin and the former limit of transformator T of control chip U respectively, is serially connected in
Active bandpass filiter electricity between the non-same polarity of overvoltage crowbar and transformator T former limit inductance coil L1
Road, the matrix current adjustment circuit being connected with control chip U, and respectively with matrix current adjustment circuit and transformator
The photoelectric coupling switch circuit composition that T secondary inductance coil L3 is connected；The negative pole of described polar capacitor C4
Ground connection after being connected with photoelectric coupling switch circuit；The source electrode of described field effect transistor MOS1 and overvoltage protection electricity
Ground connection after road is connected, its non-same polarity draining limit inductance coil L2 former with transformator T is connected.
Described active bandpass filiter electricity routing amplifier P, audion VT6, positive pole after resistance R22 with put
The positive pole of big device P is connected, negative pole is as the input of active bandpass filiter circuit and overvoltage crowbar
Polar capacitor C10, the N pole being connected emitter stage with audion VT6 after resistance R21 is connected, P
The diode D9 that pole positive pole with polar capacitor C10 after resistance R19 is connected, positive pole is through resistance R20
Afterwards the positive pole with polar capacitor C10 be connected, the polar capacitor C11 of minus earth, negative pole is through resistance R25
Positive pole with amplifier P is connected afterwards, positive pole outfan with amplifier P after adjustable resistance R26 is connected
Polar capacitor C12, the P pole connect is connected with the positive pole of polar capacitor C10, N pole is sequentially through resistance R23
The diode D10 being connected with negative pole with polar capacitor C12 after resistance R24, and positive pole is through inductance L5
The polar capacitor that colelctor electrode with audion VT6 is connected afterwards, negative pole is connected with the outfan of amplifier P
C13 forms；The minus earth of described amplifier P, its outfan are as the output of active bandpass filiter circuit
The non-same polarity holding limit inductance coil L1 former with transformator T is connected；The base stage of audion VT6 and amplification
The positive pole of device P is connected.
Described overvoltage crowbar by audion VT3, positive pole sequentially after resistance R1 and resistance R2 with three poles
The base stage of pipe VT3 is connected, the negative pole phase of polar capacitor C1, the N pole of minus earth and polar capacitor C10
Zener diode D6, the P pole that connection, P pole are connected with the base stage of audion VT3 and the former limit of transformator T
The Same Name of Ends of inductance coil L2 is connected, N pole sequentially after resistance R4 and resistance R3 with polar capacitor C1
The diode D5 that is connected of negative pole, one end is connected with the negative pole of polar capacitor C1, the other end and control
The inductance L4 that the VCC pin of chip U is connected, positive pole is connected with the emitter stage of audion VT3, bears
The polar capacitor C6 that after electrode resistance R5, the Same Name of Ends of limit inductance coil L1 former with transformator T is connected, and
The Same Name of Ends of limit former with transformator T, N pole inductance coil L1 is connected, the source of P pole and field effect transistor MOS1
The diode D4 composition that pole is connected；The grounded collector of described audion VT3；Described polar capacitor C1
Positive pole and negative pole be collectively forming the input of overvoltage crowbar.
Described photoelectric coupling switch electricity routing optocoupler IC, audion VT4, audion VT5, field is imitated
Should pipe MOS2, one end is connected with the grid of audion VT4, the first of the other end and photoelectrical coupler IC
The resistance R14 that input is connected, negative pole colelctor electrode with audion VT5 after resistance R15 is connected,
After polar capacitor C7, N electrode resistance R16 that positive pole is connected with the first input end of photoelectrical coupler IC with
The negative pole of polar capacitor C7 is connected, P pole is connected with the non-same polarity of transformator T secondary inductance coil L3
The diode D8 connect, negative pole is connected with the non-same polarity of transformator T secondary inductance coil L3, positive pole with
The polar capacitor C9 that the Same Name of Ends of transformator T secondary inductance coil L3 is connected, positive pole is after resistance R18
Be connected with the emitter stage of audion VT5, negative pole after resistance R6 with transformator T secondary inductance coil L3
The polar capacitor C8 that is connected of Same Name of Ends, and P pole is connected with the drain electrode of field effect transistor MOS2, N
Pole is sequentially connected through resistance R7 Same Name of Ends with transformator T secondary inductance coil L3 after critesistor RT
The diode D7 composition connect；The source ground of described field effect transistor MOS, its grid and photoelectrical coupler IC
The second input be connected；The grounded collector of described audion VT4, its emitter stage and audion VT5
Base stage be connected；First outfan of described photoelectrical coupler IC is connected with matrix current adjustment circuit, its
Two outfans are connected with the negative pole of polar capacitor C4.
Described matrix current adjustment circuit by audion VT1, audion VT2, positive pole after resistance R7 with control
The polar capacitor C2 that the VREF pin of chip U is connected, negative pole is connected with the base stage of audion VT1,
P pole is connected with the CT pin of control chip U, N pole after resistance R8 with the base stage phase of audion VT1
The diode D1 connected, negative pole be connected with the colelctor electrode of audion VT2 after ground connection, positive pole and control chip
The polar capacitor C3 that the GND pin of U is connected, and N pole after resistance R10 with photoelectrical coupler IC
The diode that the first outfan is connected, P pole emitter stage with audion VT2 after resistance R9 is connected
D2 forms；The grounded collector of described audion VT1, its emitter stage are connected with the base stage of audion VT2
Connect.
For the practical effect of the present invention, described control chip U the most preferentially uses UC3844A integrated
Chip realizes.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the high current ripple in the high voltage pulse in voltage and electric current can effectively be adjusted by the present invention
Whole, make the dynamic held stationary of voltage and current, ensure that the present invention can export stable voltage and electricity
Stream, and ensure that high molecular leather sprays paint the stability of drying temperature of dehydrator, is effectively prevented height
There is deformation or falls paint in molecule footwear material leather surface.
(2) to have input impedance high for the present invention, and output impedance is low, and can effectively eliminate in electric current is humorous simultaneously
Ripple, makes electric current more stable, ensures that the present invention can export stable voltage and current.
(3) control chip of the present invention have employed the integrated chip of UC3844A and realizes, the work of this chip
Stable performance, can effectively be carried out the intensity of output electric current after this chip combines with peripheral circuit simultaneously
Adjust, thus improve the load capacity of the present invention.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the active bandpass filiter circuit of the present invention.
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 control chip U, transformator T, field effect transistor MOS1, electricity
Resistance R11, resistance R12, resistance R13, polar capacitor C4, polar capacitor C5, diode D3, active
Bandwidth-limited circuit, matrix current adjustment circuit, photoelectric coupling switch circuit, and overvoltage crowbar composition.
During connection, the negative pole of polar capacitor C5 is connected with the grid of field effect transistor MOS1, its positive pole with
The OUT pin of control chip U is connected.The N pole of diode D3 after resistance R13 with field effect transistor
The drain electrode of MOS1 is connected, its P pole is connected with the IFB pin of control chip U.Polar capacitor C4
Positive pole COMP pin with control chip U after resistance R12 be connected, its negative pole is through resistance R11
It is connected with the VFB pin of control chip U afterwards.Overvoltage crowbar respectively with the VCC of control chip U
Pin limit former with transformator T is connected.Active bandpass filiter circuit is serially connected in overvoltage crowbar and transformator T
Between the non-same polarity of former limit inductance coil L1.Matrix current adjustment circuit is connected with control chip U.Light thermocouple
Combination switch circuit is connected with matrix current adjustment circuit and transformator T secondary inductance coil L3 respectively.
The negative pole of described polar capacitor C4 be connected with photoelectric coupling switch circuit after ground connection；Described field effect
The source electrode of pipe MOS1 is connected with overvoltage crowbar, its drain electrode and transformator T former limit inductance coil L2
Non-same polarity be connected after ground connection；The Same Name of Ends of described transformator T secondary inductance coil L3 and non-same polarity
It is connected with dehydrator respectively.
Further, described overvoltage crowbar by audion VT3, resistance R1, resistance R2, resistance R3,
Resistance R4, resistance R5, inductance L4, polar capacitor C1, polar capacitor C6, diode D5, and two
Pole pipe D6 forms.
During connection, the positive pole of polar capacitor C1 sequentially after resistance R1 and resistance R2 with audion VT3
Base stage be connected, its minus earth.The N pole of Zener diode D6 and the negative pole phase of polar capacitor C10
Connect, its P pole is connected with the base stage of audion VT3.The P pole of diode D5 and the former limit of transformator T
The Same Name of Ends of inductance coil L2 is connected, its N pole sequentially after resistance R4 and resistance R3 with polar capacitor
The negative pole of C1 is connected.One end of inductance L4 is connected with the negative pole of polar capacitor C1, its other end and control
The VCC pin of coremaking sheet U is connected.
Meanwhile, the positive pole of polar capacitor C6 be connected with the emitter stage of audion VT3, its negative pole resistance R5
The Same Name of Ends of limit inductance coil L1 former with transformator T is connected afterwards.The N pole of diode D4 and transformator T
The Same Name of Ends of former limit inductance coil L1 is connected, its P pole is connected with the source electrode of field effect transistor MOS1.Institute
State the grounded collector of audion VT3；The positive pole of described polar capacitor C1 and negative pole are collectively forming overvoltage and protect
The input of protection circuit is also connected with external power source.
Wherein, described photoelectric coupling switch electricity routing optocoupler IC, audion VT4, audion VT5,
Field effect transistor MOS2, resistance R6, resistance R14, resistance R15, resistance R16, resistance R17, resistance
R18, critesistor RT, polar capacitor C7, polar capacitor C8, polar capacitor C9, diode D7, with
And diode D8 composition.
During connection, one end of resistance R14 is connected with the grid of audion VT4, its other end and photoelectricity
The first input end of bonder IC is connected.The negative pole of polar capacitor C7 after resistance R15 with audion VT5
Colelctor electrode be connected, its positive pole is connected with the first input end of photoelectrical coupler IC.Diode D8's
After N electrode resistance R16 the negative pole with polar capacitor C7 be connected, its P pole and transformator T secondary inductance line
The non-same polarity of circle L3 is connected.
The negative pole of polar capacitor C9 is connected with the non-same polarity of transformator T secondary inductance coil L3, its just
Pole is connected with the Same Name of Ends of transformator T secondary inductance coil L3.The positive pole of polar capacitor C8 is through resistance R18
Afterwards the emitter stage with audion VT5 be connected, its negative pole after resistance R6 with transformator T secondary inductance line
The Same Name of Ends of circle L3 is connected.The P pole of diode D7 is connected with the drain electrode of field effect transistor MOS2, it
N pole sequentially after resistance R7 and critesistor RT with the Same Name of Ends phase of transformator T secondary inductance coil L3
Connect.
The second input phase of the source ground of described field effect transistor MOS, its grid and photoelectrical coupler IC
Connect；The grounded collector of described audion VT4, its emitter stage are connected with the base stage of audion VT5；
First outfan of described photoelectrical coupler IC is connected with matrix current adjustment circuit, its second outfan and polarity
The negative pole of electric capacity C4 is connected.
Further, described matrix current adjustment circuit by audion VT1, audion VT2, resistance R7,
Resistance R8, resistance R9, resistance R10, polar capacitor C2, polar capacitor C3, diode D1, and
Diode D2 forms.
During connection, the positive pole of polar capacitor C2 after resistance R7 with the VREF pin phase of control chip U
Connect, its negative pole is connected with the base stage of audion VT1.The P pole of diode D1 is with control chip U's
CT pin is connected, its N pole base stage with audion VT1 after resistance R8 is connected.Polar capacitor
The negative pole of C3 be connected with the colelctor electrode of audion VT2 after ground connection, the GND of its positive pole and control chip U
Pin is connected.The N pole of diode D2 after resistance R10 with the first outfan phase of photoelectrical coupler IC
Connect, its P pole emitter stage with audion VT2 after resistance R9 is connected.Described audion VT1's
Grounded collector, its emitter stage are connected with the base stage of audion VT2.
As in figure 2 it is shown, described active bandpass filiter electricity routing amplifier P, audion VT6, resistance R19,
Resistance R20, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26,
Polar capacitor C10, polar capacitor C11, polar capacitor C12, polar capacitor C13, diode D9, two
Pole pipe D10, and inductance L5 composition.
During connection, the positive pole of polar capacitor C10 positive pole with amplifier P after resistance R22 is connected, it
Negative pole as the input of active bandpass filiter circuit and is connected with overvoltage crowbar.The N of diode D9
Pole emitter stage with audion VT6 after resistance R21 is connected, its P pole after resistance R19 with polarity electricity
The positive pole holding C10 is connected.The positive pole of polar capacitor C11 after resistance R20 with polar capacitor C10 just
Pole is connected, its minus earth.
Meanwhile, the negative pole of polar capacitor C12 positive pole with amplifier P after resistance R25 be connected, its just
Pole outfan with amplifier P after adjustable resistance R26 is connected.The P pole of diode D10 and polarity electricity
Hold C10 positive pole be connected, its N pole sequentially after resistance R23 and resistance R24 with polar capacitor C12
Negative pole be connected.The positive pole of polar capacitor C13 colelctor electrode with audion VT6 after inductance L5 is connected
Connect, its negative pole is connected with the outfan of amplifier P.
The minus earth of described amplifier P, its outfan are as the outfan of active bandpass filiter circuit and change
The non-same polarity of depressor T former limit inductance coil L1 is connected；The base stage of audion VT6 is with amplifier P's
Positive pole is connected.
During operation, the high current ripple in the high voltage pulse in voltage and electric current can effectively be entered by the present invention
Row sum-equal matrix, makes the dynamic held stationary of voltage and current, ensures that the present invention can export stable voltage
And electric current, and ensure that high molecular leather sprays paint the stability of drying temperature of dehydrator, is effectively prevented
There is deformation or falls paint in macromolecule shoe material leather surface.
Meanwhile, it is high that the present invention has input impedance, and output impedance is low, can effectively eliminate in electric current simultaneously
Harmonic wave, makes electric current more stable, ensures that the present invention can export stable voltage and current.The present invention
Control chip have employed the integrated chip of UC3844A and realize, the stable work in work of this chip, should simultaneously
The intensity of output electric current can be effectively adjusted after combining with peripheral circuit by chip, thus improves
The load capacity of the present invention.
According to above-described embodiment, can well realize the present invention.
Claims (6)
1. leather based on active bandpass filiter circuit sprays paint a Switching Power Supply for dehydrator, and its feature exists
In, mainly by control chip U, transformator T, field effect transistor MOS1, negative pole and field effect transistor MOS1
Polar capacitor C5, the N pole warp that grid is connected, positive pole is connected with the OUT pin of control chip U
After resistance R13 the drain electrode with field effect transistor MOS1 be connected, the IFB pin phase of P pole and control chip U
The diode D3 connected, positive pole COMP pin with control chip U after resistance R12 is connected, negative
The polar capacitor C4 that pole is connected with the VFB pin of control chip U after resistance R11, respectively with control
The overvoltage crowbar that the VCC pin limit former with transformator T of chip U is connected, is serially connected in overvoltage protection electricity
Active bandpass filiter circuit between the non-same polarity of road and transformator T former limit inductance coil L1, with control core
The matrix current adjustment circuit that sheet U is connected, and respectively with matrix current adjustment circuit and transformator T secondary inductance line
The photoelectric coupling switch circuit composition that circle L3 is connected；The negative pole of described polar capacitor C4 is opened with photoelectric coupling
Close ground connection after circuit is connected；The source electrode of described field effect transistor MOS1 is connected with overvoltage crowbar, it
The non-same polarity of limit inductance coil L2 former with transformator T of draining be connected after ground connection.
A kind of leather based on active bandpass filiter circuit the most according to claim 1 sprays paint dehydrator
Switching Power Supply, it is characterised in that described active bandpass filiter electricity routing amplifier P, audion VT6, just
Pole positive pole with amplifier P after resistance R22 is connected, negative pole is as the input of active bandpass filiter circuit
End polar capacitor C10, the N pole that is connected with overvoltage crowbar after resistance R21 with audion VT6
The diode D9 that emitter stage is connected, P pole positive pole with polar capacitor C10 after resistance R19 is connected,
Positive pole positive pole with polar capacitor C10 after resistance R20 is connected, the polar capacitor C11 of minus earth,
Negative pole positive pole with amplifier P after resistance R25 is connected, positive pole after adjustable resistance R26 with amplifier
Polar capacitor C12, the P pole that the outfan of P is connected is connected with the positive pole of polar capacitor C10, N is the most suitable
The secondary diode D10 being connected through resistance R23 negative pole with polar capacitor C12 after resistance R24, and
Positive pole colelctor electrode with audion VT6 after inductance L5 is connected, the outfan phase of negative pole and amplifier P
The polar capacitor C13 composition connected；The minus earth of described amplifier P, its outfan lead to as active band
The non-same polarity of the outfan of filter circuit limit former with transformator T inductance coil L1 is connected；Audion VT6
Base stage be connected with the positive pole of amplifier P.
A kind of leather based on active bandpass filiter circuit the most according to claim 2 sprays paint dehydrator
Switching Power Supply, it is characterised in that described overvoltage crowbar is by audion VT3, and positive pole is sequentially through resistance
After R1 and resistance R2 the base stage with audion VT3 be connected, polar capacitor C1, the N pole of minus earth with
The Zener diode D6 that the negative pole of polar capacitor C10 is connected, P pole is connected with the base stage of audion VT3,
The Same Name of Ends of limit former with transformator T, P pole inductance coil L2 is connected, N pole is sequentially through resistance R4 and resistance
The diode D5 that after R3, negative pole with polar capacitor C1 is connected, the negative pole phase of one end and polar capacitor C1
The inductance L4 that connection, the other end are connected with the VCC pin of control chip U, positive pole and audion VT3
Emitter stage be connected, the Same Name of Ends of limit inductance coil L1 former with transformator T is connected after negative pole resistance R5
Polar capacitor C6, and the Same Name of Ends of limit former with transformator T, N pole inductance coil L1 is connected, P pole
The diode D4 composition being connected with the source electrode of field effect transistor MOS1；The colelctor electrode of described audion VT3
Ground connection；The positive pole of described polar capacitor C1 and negative pole are collectively forming the input of overvoltage crowbar.
A kind of leather based on active bandpass filiter circuit the most according to claim 3 sprays paint dehydrator
Switching Power Supply, it is characterised in that described photoelectric coupling switch electricity routing optocoupler IC, audion VT4,
Audion VT5, field effect transistor MOS2, one end is connected with the grid of audion VT4, the other end and light
The resistance R14 that the first input end of electric coupler IC is connected, negative pole after resistance R15 with audion VT5
Colelctor electrode is connected, positive pole is connected with the first input end of photoelectrical coupler IC polar capacitor C7, N
After electrode resistance R16 the negative pole with polar capacitor C7 be connected, P pole and transformator T secondary inductance coil L3
The diode D8 that is connected of non-same polarity, the non-same polarity of negative pole and transformator T secondary inductance coil L3
Be connected, polar capacitor C9 that positive pole is connected with the Same Name of Ends of transformator T secondary inductance coil L3, just
Pole emitter stage with audion VT5 after resistance R18 is connected, negative pole after resistance R6 with transformator T
The polar capacitor C8 that the Same Name of Ends of secondary inductance coil L3 is connected, and P pole and field effect transistor MOS2
Drain electrode be connected, N pole sequentially after resistance R7 and critesistor RT with transformator T secondary inductance coil
The diode D7 composition that the Same Name of Ends of L3 is connected；The source ground of described field effect transistor MOS, its grid
It is connected with second input of photoelectrical coupler IC；The grounded collector of described audion VT4, its transmitting
Pole is connected with the base stage of audion VT5；First outfan of described photoelectrical coupler IC adjusts electricity with electric current
Road is connected, its second outfan is connected with the negative pole of polar capacitor C4.
A kind of leather based on active bandpass filiter circuit the most according to claim 4 sprays paint dehydrator
Switching Power Supply, it is characterised in that described matrix current adjustment circuit is by audion VT1, audion VT2, just
Pole VREF pin with control chip U after resistance R7 is connected, the base stage of negative pole and audion VT1
Polar capacitor C2, the P pole being connected is connected with the CT pin of control chip U, N pole is through resistance R8
The diode D1 that base stage with audion VT1 is connected afterwards, negative pole is connected with the colelctor electrode of audion VT2
Connect rear ground connection, polar capacitor C3 that positive pole is connected with the GND pin of control chip U, and N pole warp
After resistance R10 the first outfan with photoelectrical coupler IC be connected, P pole after resistance R9 with audion
The diode D2 composition that the emitter stage of VT2 is connected；The grounded collector of described audion VT1, its
Emitter-base bandgap grading is connected with the base stage of audion VT2.
A kind of leather based on active bandpass filiter circuit the most according to claim 5 sprays paint dehydrator
Switching Power Supply, it is characterised in that described control chip U is the integrated chip of UC3844A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411395.3A CN105978349A (en) | 2016-06-13 | 2016-06-13 | Active band-pass filter circuit based switching power supply for dyer used for spray-painted leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411395.3A CN105978349A (en) | 2016-06-13 | 2016-06-13 | Active band-pass filter circuit based switching power supply for dyer used for spray-painted leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105978349A true CN105978349A (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610411395.3A Pending CN105978349A (en) | 2016-06-13 | 2016-06-13 | Active band-pass filter circuit based switching power supply for dyer used for spray-painted leather |
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| CN (1) | CN105978349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110894010A (en) * | 2019-12-06 | 2020-03-20 | 遂宁明强商品混凝土有限公司 | Dust storage and separation equipment for sand conveyor |
-
2016
- 2016-06-13 CN CN201610411395.3A patent/CN105978349A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110894010A (en) * | 2019-12-06 | 2020-03-20 | 遂宁明强商品混凝土有限公司 | Dust storage and separation equipment for sand conveyor |
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