CN205847098U - A kind of leather based on active bandpass filiter circuit sprays paint the Switching Power Supply of dehydrator - Google Patents

Abstract

The utility model discloses a kind of leather based on active bandpass filiter circuit to spray paint the Switching Power Supply of dehydrator; it is characterized in that; main by control chip U; transformator T; overvoltage crowbar; matrix current adjustment circuit; field effect transistor MOS1; polar capacitor C5; diode D3; polar capacitor C4, is serially connected in the active bandpass filiter circuit between the non-same polarity of overvoltage crowbar and transformator T former limit inductance coil L1, and the photoelectric coupling switch circuit composition being connected respectively with matrix current adjustment circuit and transformator T secondary inductance coil L3.Current ripple high in high voltage pulse in voltage and electric current can be effectively adjusted by this utility model, make the dynamic held stationary of voltage and current, ensure that this utility model can export stable voltage and current, and ensure that high molecular leather sprays paint the stability of drying temperature of dehydrator, is effectively prevented macromolecule shoe material leather surface and deformation occurs or fall paint.

Description

A kind of leather based on active bandpass filiter circuit sprays paint the Switching Power Supply of dehydrator

Technical field

This utility model relates to electronic applications, specifically, is that a kind of leather based on active bandpass filiter circuit sprays paint The Switching Power Supply of dehydrator.

Background technology

Along with high molecular leather is widely used in leatherware industry, people to the quality requirements of leatherware increasingly While height, also the quality of high molecular leather is had higher requirement.But, high-quality macromolecule skin will be produced Leather, it is critical only that macromolecule shoe material leather sprays paint this link of post-drying.

At present there is output voltage and the unstable problem of electric current in the spray paint Switching Power Supply of dehydrator of high molecular leather, causes High molecular leather sprays paint the drying temperature extremely unstable of dehydrator, causes macromolecule shoe material leather surface deformation occur or fall paint Defect.

Therefore it provides a kind of high molecular leather that can export stable voltage and current sprays paint dehydrator Switching Power Supply just It it is the task of top priority.

Utility model content

The purpose of this utility model is 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 Switching Power Supply of dehydrator.

This utility model is achieved through the following technical solutions: a kind of leather based on active bandpass filiter circuit sprays paint baking The Switching Power Supply of dry machine, mainly by control chip U, transformator T, field effect transistor MOS1, negative pole and the grid of field effect transistor MOS1 Be connected, polar capacitor C5, N pole that positive pole is connected with the OUT pin of control chip U after resistance R13 with field effect transistor The diode D3 that the drain electrode of MOS1 is connected, P pole is connected with the IFB pin of control chip U, positive pole after resistance R12 with control The polar capacitor that the COMP pin of coremaking sheet U is connected, negative pole is connected with the VFB pin of control chip U after resistance R11 C4, the overvoltage crowbar being connected with VCC pin and the former limit of transformator T of control chip U respectively, it 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, is connected with control chip U Matrix current adjustment circuit, and the photoelectric coupling being connected with matrix current adjustment circuit and transformator T secondary inductance coil L3 respectively opens Pass circuit composition；The negative pole of described polar capacitor C4 be connected with photoelectric coupling switch circuit after ground connection；Described field effect transistor The source electrode of MOS1 is connected with overvoltage crowbar, its non-same polarity draining limit inductance coil L2 former with transformator T is connected Rear ground connection.

Described active bandpass filiter electricity routing amplifier P, audion VT6, positive pole after resistance R22 with amplifier P just Pole is connected, negative pole as the input of active bandpass filiter circuit the polar capacitor C10 that is connected with overvoltage crowbar, N pole emitter stage with audion VT6 after resistance R21 is connected, P pole positive pole with polar capacitor C10 after resistance R19 is connected The diode D9 connect, 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 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 sequentially after resistance R23 and resistance R24 with pole The diode D10 that the negative pole of property electric capacity C12 is connected, and positive pole colelctor electrode with audion VT6 after inductance L5 is connected, The polar capacitor C13 composition that negative pole is connected with the outfan of amplifier P；The minus earth of described amplifier P, its outfan are made Non-same polarity for outfan limit former with the transformator T inductance coil L1 of active bandpass filiter circuit is connected；Audion VT6's Base stage is connected with the positive pole of amplifier P.

Described overvoltage crowbar by audion VT3, positive pole sequentially after resistance R1 and resistance R2 with the base of audion VT3 Pole is connected, polar capacitor C1, the N pole of minus earth is connected with the negative pole of polar capacitor C10, the base of P pole and audion VT3 The Same Name of Ends of limit former with transformator T, Zener diode D6, the P pole inductance coil L2 that pole is connected is connected, N pole is sequentially through resistance The diode D5 being connected with the negative pole of polar capacitor C1 after R4 and resistance R3, one end is connected with the negative pole of polar capacitor C1, The inductance L4 that the other end is connected with the VCC pin of control chip U, positive pole is connected with the emitter stage of audion VT3, negative electricity The polar capacitor C6 that after resistance R5, the Same Name of Ends of limit inductance coil L1 former with transformator T is connected, and N pole and the former limit of transformator T The diode D4 composition that the Same Name of Ends of inductance coil L1 is connected, P pole is connected with the source electrode of field effect transistor MOS1；Described three poles The grounded collector of pipe VT3；The positive pole of described polar capacitor C1 and negative pole are collectively forming the input of overvoltage crowbar.

Described photoelectric coupling switch electricity routing optocoupler IC, audion VT4, audion VT5, field effect transistor MOS2, The resistance R14 that one end is connected with the grid of audion VT4, the other end is connected with the first input end of photoelectrical coupler IC, Negative pole colelctor electrode with audion VT5 after resistance R15 is connected, positive pole is connected with the first input end of photoelectrical coupler IC Polar capacitor C7, N pole negative pole with polar capacitor C7 after resistance R16 be connected, P pole and transformator T secondary inductance coil The diode D8 that the non-same polarity of L3 is connected, negative pole is connected with the non-same polarity of transformator T secondary inductance coil L3, positive pole The polar capacitor C9 being connected with the Same Name of Ends of transformator T secondary inductance coil L3, positive pole after resistance R18 with audion VT5 The polar capacitor that emitter stage is connected, negative pole Same Name of Ends with transformator T secondary inductance coil L3 after resistance R6 is connected C8, and P pole is connected with the drain electrode of field effect transistor MOS2, N pole is sequentially secondary with transformator T after resistance R7 and critesistor RT The diode D7 composition that the Same Name of Ends of limit inductance coil L3 is connected；The source ground of described field effect transistor MOS, its grid and light Second input of electric coupler IC is connected；The grounded collector of described audion VT4, its emitter stage are with audion VT5's Base stage is connected；First outfan of described photoelectrical coupler IC is connected with matrix current adjustment circuit, its second outfan and pole The negative pole of property electric capacity C4 is connected.

Described matrix current adjustment circuit by audion VT1, audion VT2, positive pole after resistance R7 with the VREF of control chip U Polar capacitor C2, the P pole that pin is connected, negative pole is connected with the base stage of audion VT1 is connected with the CT pin of control chip U Connect, diode D1 that N pole base stage with audion VT1 after resistance R8 is connected, 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 after resistance R10 with photoelectricity The diode D2 group that first outfan of bonder IC is connected, P pole emitter stage with audion VT2 after resistance R9 is connected Become；The grounded collector of described audion VT1, its emitter stage are connected with the base stage of audion VT2.

For practical effect of the present utility model, described control chip U the most preferentially uses the integrated chip of UC3844A Realize.

This utility model 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 this utility model Whole, make the dynamic held stationary of voltage and current, ensure that this utility model can export stable voltage and current, and Ensure that high molecular leather sprays paint the stability of drying temperature of dehydrator, is effectively prevented macromolecule shoe material leather surface and goes out Now deform or fall paint.

(2) this utility model has input impedance height, and output impedance is low, can effectively eliminate the harmonic wave in electric current simultaneously, Make electric current more stable, ensure that this utility model can export stable voltage and current.

(3) control chip of the present utility model have employed the integrated chip of UC3844A and realizes, and the service behaviour of this chip is steady Fixed, can effectively the intensity of output electric current be adjusted after this chip combines with peripheral circuit simultaneously, thus improve Load capacity of the present utility model.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model.

Fig. 2 is the electrical block diagram of active bandpass filiter circuit of the present utility model.

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing thereof, this utility model is described in further detail, but reality of the present utility model The mode of executing is not limited to this.

Embodiment

As it is shown in figure 1, this utility model is mainly by control chip U, transformator T, field effect transistor MOS1, resistance R11, resistance R12, resistance R13, polar capacitor C4, polar capacitor C5, diode D3, active bandpass filiter circuit, matrix current adjustment circuit, photoelectricity Coupled switched circuits, 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 and control chip U OUT pin is connected.The drain electrode with field effect transistor MOS1 after resistance R13 of the N pole of diode D3 is connected, its P pole and control The IFB pin of chip U is connected.The positive pole of polar capacitor C4 COMP pin with control chip U after resistance R12 is connected, Its negative pole VFB pin with control chip U after resistance R11 is connected.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 former limit inductor wire Between the non-same polarity of circle L1.Matrix current adjustment circuit is connected with control chip U.Photoelectric coupling switch circuit is adjusted with electric current respectively Whole circuit is connected with transformator T secondary inductance coil L3.

The negative pole of described polar capacitor C4 be connected with photoelectric coupling switch circuit after ground connection；Described field effect transistor MOS1 Ground connection after source electrode is connected with overvoltage crowbar, its non-same polarity draining limit inductance coil L2 former with transformator T is connected； The Same Name of Ends of described transformator T secondary inductance coil L3 is connected with dehydrator respectively with non-same polarity.

Further, described overvoltage crowbar is by audion VT3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, inductance L4, polar capacitor C1, polar capacitor C6, diode D5, and diode D6 form.

During connection, the positive pole of polar capacitor C1 is sequentially connected through resistance R1 base stage with audion VT3 after resistance R2, Its minus earth.The N pole of Zener diode D6 is connected with the negative pole of polar capacitor C10, the base stage of its P pole and audion VT3 It is connected.The Same Name of Ends of limit former with transformator T, the P pole inductance coil L2 of diode D5 is connected, its N pole sequentially through resistance R4 and After resistance R3, the negative pole with polar capacitor C1 is connected.One end of inductance L4 is connected with the negative pole of polar capacitor C1, its another End is connected with the VCC pin of control chip U.

Meanwhile, the positive pole of polar capacitor C6 be connected with the emitter stage of audion VT3, after its negative pole resistance R5 with transformator The Same Name of Ends of T former limit inductance coil L1 is connected.The Same Name of Ends phase of limit former with transformator T, the N pole inductance coil L1 of diode D4 Connect, its P pole is connected with the source electrode of field effect transistor MOS1.The grounded collector of described audion VT3；Described polar capacitor C1 Positive pole be collectively forming the input of overvoltage crowbar with negative pole and be 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, pole Property electric capacity C8, polar capacitor C9, diode D7, and diode D8 composition.

During connection, one end of resistance R14 is connected with the grid of audion VT4, its other end and photoelectrical coupler IC First input end is connected.The negative pole of polar capacitor C7 colelctor electrode with audion VT5 after resistance R15 is connected, its positive pole It is connected with the first input end of photoelectrical coupler IC.The N pole of diode D8 after resistance R16 with the negative pole phase of polar capacitor C7 Connect, its P pole is connected with the non-same polarity of transformator T secondary inductance coil L3.

The negative pole of polar capacitor C9 is connected with the non-same polarity of transformator T secondary inductance coil L3, its positive pole and transformation The Same Name of Ends of device T secondary inductance coil L3 is connected.The positive pole of polar capacitor C8 after resistance R18 with the transmitting of audion VT5 Pole is connected, its negative pole Same Name of Ends with transformator T secondary inductance coil L3 after resistance R6 is connected.The P pole of diode D7 Be connected with the drain electrode of field effect transistor MOS2, its N pole sequentially after resistance R7 and critesistor RT with transformator T secondary inductance The Same Name of Ends of coil L3 is connected.

The source ground of described field effect transistor MOS, its grid are connected with second input of photoelectrical coupler IC；Described The grounded collector of audion VT4, its emitter stage are connected with the base stage of audion VT5；The first of described photoelectrical coupler IC Outfan is connected with matrix current adjustment circuit, its second outfan is connected with the negative pole of polar capacitor C4.

Further, described matrix current adjustment circuit is by audion VT1, audion VT2, resistance R7, resistance R8, resistance R9, resistance R10, polar capacitor C2, polar capacitor C3, diode D1, and diode D2 form.

During connection, the positive pole of polar capacitor C2 VREF pin with control chip U after resistance R7 is connected, its negative pole with The base stage of audion VT1 is connected.The P pole of diode D1 is connected with the CT pin of control chip U, its N pole is after resistance R8 It is connected with the base stage of audion VT1.The negative pole of polar capacitor C3 be connected with the colelctor electrode of audion VT2 after ground connection, its just Pole is connected with the GND pin of control chip U.The N pole of diode D2 after resistance R10 with the first of photoelectrical coupler IC the output End is connected, its P pole emitter stage with audion VT2 after resistance R9 is connected.The grounded collector of described audion VT1, Its emitter stage is 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, electricity Resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, polar capacitor C10, polar capacitor C11, polarity electricity Hold C12, polar capacitor C13, diode D9, diode D10, and inductance L5 composition.

During connection, the positive pole of polar capacitor C10 positive pole with amplifier P after resistance R22 is connected, its negative pole is as having The input of source bandwidth-limited circuit is also connected with overvoltage crowbar.The N pole of diode D9 after resistance R21 with audion The emitter stage of VT6 is connected, its P pole positive pole with polar capacitor C10 after resistance R19 is connected.The positive pole of polar capacitor C11 After resistance R20 the positive pole with polar capacitor C10 be connected, its minus earth.

Meanwhile, the negative pole of polar capacitor C12 positive pole with amplifier P after resistance R25 is connected, its positive pole is through adjustable electric It is connected with the outfan of amplifier P after resistance R26.The P pole of diode D10 is connected with the positive pole of polar capacitor C10, its N pole Sequentially it is connected through resistance R23 negative pole with polar capacitor C12 after resistance R24.The positive pole of polar capacitor C13 is after inductance L5 Be connected with the colelctor electrode of audion VT6, its negative pole is connected with the outfan of amplifier P.

The minus earth of described amplifier P, its outfan are former with transformator T as the outfan of active bandpass filiter circuit The non-same polarity of limit inductance coil L1 is connected；The base stage of audion VT6 is connected with the positive pole of amplifier P.

During operation, the high current ripple in the high voltage pulse in voltage and electric current can effectively be carried out by this utility model Adjust, make the dynamic held stationary of voltage and current, ensure that this utility model can export stable voltage and current, and Ensure that high molecular leather sprays paint the stability of drying temperature of dehydrator, is effectively prevented macromolecule shoe material leather surface and goes out Now deform or fall paint.

Meanwhile, it is high that this utility model has input impedance, and output impedance is low, and can effectively eliminate in electric current is humorous simultaneously Ripple, makes electric current more stable, ensures that this utility model can export stable voltage and current.Control of the present utility model Chip have employed the integrated chip of UC3844A and realizes, the stable work in work of this chip, simultaneously this chip and peripheral circuit phase Effectively the intensity of output electric current can be adjusted after in conjunction with, thus improve load capacity of the present utility model.

According to above-described embodiment, can well realize this utility model.

Claims (6)

1. a leather based on active bandpass filiter circuit sprays paint the Switching Power Supply of dehydrator, it is characterised in that main by controlling Coremaking sheet U, transformator T, field effect transistor MOS1, negative pole is connected with the grid of field effect transistor MOS1, positive pole and control chip U Polar capacitor C5, the N pole that OUT pin is connected drain electrode with field effect transistor MOS1 after resistance R13 is connected, P pole and control The diode D3 that the IFB pin of chip U is 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 the VCC pin of control chip U The overvoltage crowbar that limit former with transformator T is connected, is serially connected in overvoltage crowbar and transformator T former limit inductance coil L1's Active bandpass filiter circuit between non-same polarity, the matrix current adjustment circuit being connected with control chip U, and respectively with electric current Adjust the photoelectric coupling switch circuit composition that circuit is connected with transformator T secondary inductance coil L3；Described polar capacitor C4's Negative pole be connected with photoelectric coupling switch circuit after ground connection；The source electrode of described field effect transistor MOS1 is connected with overvoltage crowbar Connect, its drain limit inductance coil L2 former with transformator T non-same polarity be connected after ground connection.

A kind of leather based on active bandpass filiter circuit the most according to claim 1 sprays paint the Switching Power Supply of dehydrator, It is characterized in that, described active bandpass filiter electricity routing amplifier P, audion VT6, positive pole after resistance R22 with amplifier P's Positive pole is connected, negative pole is as the input of active bandpass filiter circuit the polar capacitor that is connected with overvoltage crowbar C10, N pole emitter stage with audion VT6 after resistance R21 is connected, P pole after resistance R19 with the positive pole of polar capacitor C10 The diode D9 being connected, positive pole positive pole with polar capacitor C10 after resistance R20 is connected, the polar capacitor of minus earth C11, negative pole positive pole with amplifier P after resistance R25 is connected, positive pole after adjustable resistance R26 with the outfan of amplifier P Polar capacitor C12, the P pole being connected is connected with the positive pole of polar capacitor C10, N pole is sequentially after resistance R23 and resistance R24 The diode D10 being connected with the negative pole of polar capacitor C12, and positive pole after inductance L5 with the colelctor electrode phase of audion VT6 The polar capacitor C13 composition that connection, negative pole are connected with the outfan of amplifier P；The minus earth of described amplifier P, it is defeated Go out and hold the non-same polarity as outfan limit former with the transformator T inductance coil L1 of active bandpass filiter circuit to be connected；Three poles The base stage of pipe VT6 is 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 the Switching Power Supply of dehydrator, It is characterized in that, described overvoltage crowbar by audion VT3, positive pole sequentially after resistance R1 and resistance R2 with audion VT3 Base stage be connected, polar capacitor C1, the N pole of minus earth is connected with the negative pole of polar capacitor C10, P pole and audion VT3 The Same Name of Ends of limit former with transformator T, Zener diode D6, P pole inductance coil L2 that is connected of base stage be connected, N pole sequentially warp The diode D5 being connected with the negative pole of polar capacitor C1 after resistance R4 and resistance R3, one end is connected with the negative pole of polar capacitor C1 Connect, inductance L4 that the other end is connected with the VCC pin of control chip U, positive pole is connected with the emitter stage of audion VT3, negative 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 N pole and transformator T The diode D4 that Same Name of Ends is connected, P pole is connected with the source electrode of the field effect transistor MOS1 composition of former limit inductance coil L1；Described The grounded collector of audion VT3；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 the Switching Power Supply of dehydrator, It is characterized in that, described photoelectric coupling switch electricity routing optocoupler IC, audion VT4, audion VT5, field effect transistor MOS2, the resistance that one end is connected with the grid of audion VT4, the other end is connected with the first input end of photoelectrical coupler IC R14, negative pole colelctor electrode with audion VT5 after resistance R15 is connected, the first input end phase of positive pole and photoelectrical coupler IC Polar capacitor C7, the N pole connected negative pole with polar capacitor C7 after resistance R16 is connected, P pole and transformator T secondary inductance The diode D8 that the non-same polarity of coil L3 is connected, negative pole is connected with the non-same polarity of transformator T secondary inductance coil L3, The polar capacitor C9 that positive pole is connected with the Same Name of Ends of transformator T secondary inductance coil L3, positive pole after resistance R18 with audion The polarity electricity that the emitter stage of VT5 is connected, negative pole Same Name of Ends with transformator T secondary inductance coil L3 after resistance R6 is connected Hold C8, and P pole is connected with the drain electrode of field effect transistor MOS2, N pole sequentially after resistance R7 and critesistor RT with transformator T The diode D7 composition that the Same Name of Ends of secondary inductance coil L3 is connected；The source ground of described field effect transistor MOS, its grid with Second input of photoelectrical coupler IC is 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 second outfan with The negative pole of polar capacitor C4 is connected.

A kind of leather based on active bandpass filiter circuit the most according to claim 4 sprays paint the Switching Power Supply of dehydrator, It is characterized in that, described matrix current adjustment circuit by audion VT1, audion VT2, positive pole after resistance R7 with control chip U's The CT pipe of polar capacitor C2, the P pole that VREF pin is connected, negative pole is connected with the base stage of audion VT1 and control chip U The diode D1 that foot is connected, N pole base stage with audion VT1 after resistance R8 is connected, the current collection of negative pole and audion VT2 Pole be connected after the polar capacitor C3 that is connected with the GND pin of control chip U of ground connection, positive pole, and N pole is after resistance R10 Be connected with first outfan of photoelectrical coupler IC, two poles that P pole emitter stage with audion VT2 after resistance R9 is connected Pipe D2 forms；The grounded collector of described audion VT1, its emitter stage are 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 the Switching Power Supply of dehydrator, It is characterized in that, described control chip U is the integrated chip of UC3844A.