CN206135831U - Air purifier takes out fan drive surge suppression type amplifier circuit for system - Google Patents
Air purifier takes out fan drive surge suppression type amplifier circuit for system Download PDFInfo
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- CN206135831U CN206135831U CN201621076862.3U CN201621076862U CN206135831U CN 206135831 U CN206135831 U CN 206135831U CN 201621076862 U CN201621076862 U CN 201621076862U CN 206135831 U CN206135831 U CN 206135831U
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Abstract
The utility model discloses an air purifier takes out fan drive surge suppression type amplifier circuit for system, mainly by amplifier P, triode VT1, triode VT2, triode VT3, triode VT4, triode VT5, triode VT6, diode D1 to and anodal be connected with triode VT5's collecting electrode behind resistance R5, negative pole and triode VT3's base is connected the polarity electric capacity C6 constitution of back ground connection. The utility model discloses simple structure, the practicality is strong, and can carry out the two poles of the earth to input voltage and recommend the emitter -base bandgap grading and follow, and the drive current who can be effectual exports the actuating system according to the actual voltage of load and electric current adjusts, thereby has ensured the utility model discloses the improvement actuating system output voltage and the stability of electric current that can be fine make air purifier better to the effect of the cleanness of room air, purification, and messenger air purifier is fine satisfies people's demand.
Description
Technical field
The utility model relates to a kind of amplifying circuit, is a kind of air purifier air exhauster drivetrain specifically
System Surge suppression type amplifying circuit.
Background technology
Air purifier is mainly made up of systems such as air exhauster, airstrainers, and its operation principle is：In air purifier
Air exhauster make circulating internal air, various pollutants are removed after the airstrainer of the air of pollution in machine or
Absorption, air is constantly ionized, and produces a large amount of anions, is sent by gentle breeze fan, forms anion air-flow, reaches cleaning, purification
The purpose of air.And the air exhauster of air purifier operationally then needs drive system and provides stable driving current for it,
To guarantee the stabilization of speed of air exhauster, even if the effect of circulating internal air is more preferably, air purifier is set preferably to reach
Cleaning, the purpose of purify air.
However, the air exhauster drive system of existing air purifier there is output voltage and the stability of electric current is poor, lead
Cause the speed stability of the air exhauster of high air purifier poor, so that air purifier is to the cleaning of room air, purification
Effect on driving birds is not good, it is impossible to meet the demand of people well.
Therefore it provides a kind of can improve the air exhauster drive system output voltage of air purifier and the electricity of current stability
Road is the task of top priority.
Utility model content
The purpose of this utility model is that the air exhauster drive system for overcoming existing air purifier has output voltage
The defect poor with current stability, there is provided a kind of air purifier air exhauster drive system Surge suppression type amplifying circuit.
The utility model is achieved through the following technical solutions：A kind of air purifier air exhauster drive system is pressed down with surge
Type amplifying circuit processed, mainly by amplifier P, triode VT1, triode VT2, triode VT3, triode VT4, triode VT5,
Triode VT6, positive pole is connected Jing after resistance R8 with the positive pole of amplifier P, negative pole Jing after resistance R6 with the output end of amplifier P
The polar capacitor C3 being connected, P poles are connected Jing after resistance R9 with the negative pole of amplifier P, the output end phase of N poles and amplifier P
The diode D1 of connection, negative pole be connected with the negative pole of amplifier P after ground connection, positive pole Jing after resistance R10 with the N poles of diode D1
The polar capacitor C4 being connected, negative pole is connected Jing after resistance R2 with the positive electrode of amplifier P, positive pole Jing after resistance R1 with three poles
The polar capacitor C1 that the colelctor electrode of pipe VT1 is connected, positive pole is connected Jing after resistance R3 with the base stage of triode VT1, negative pole with
The polar capacitor C2 that the output end of amplifier P is connected, positive pole is connected Jing after resistance R11 with the output end of amplifier P, negative pole
The polar capacitor C5 being connected with the base stage of triode VT2, P poles are connected with the emitter stage of triode VT1, N poles Jing resistance R12
Diode D2 with the emitter stage of triode VT2 even afterwards, one end is connected with the emitter stage of triode VT1, the other end and three poles
The resistance R4 that the base stage of pipe VT5 is connected, P poles are connected with the emitter stage of triode VT2, N poles Jing after resistance R14 with triode
The diode D3 that the base stage of VT6 is connected, one end is connected with the base stage of triode VT4, the base stage of the other end and triode VT3
The resistance R13 being connected, one end is connected with the emitter stage of triode VT5, the other end is connected with the base stage of triode VT3
Resistance R7, and positive pole is connected Jing after resistance R5 with the colelctor electrode of triode VT5, negative pole is connected with the base stage of triode VT3
The polar capacitor C6 compositions being grounded after connecing；The amplifier P negative electrode ground connection, its output end also with the negative pole of polar capacitor C2
It is connected；Input of the positive pole of the polar capacitor C3 as Surge suppression type amplifying circuit；The current collection of the triode VT1
Pole is connected with the colelctor electrode of triode VT5；The minus earth of the polar capacitor C1；The colelctor electrode of the triode VT2 is also
It is grounded after being connected with the colelctor electrode of triode VT6；The colelctor electrode of the triode VT3 is connected with the base stage of triode VT5,
Its emitter stage is connected with the emitter stage of triode VT4；The colelctor electrode of the triode VT4 is connected with the N poles of diode D3,
Its base stage is connected with the emitter stage of triode VT6；The colelctor electrode of the triode VT5 is common with the colelctor electrode of triode VT6
Form the output end of linear amplifier circuit.
To guarantee practical effect of the present utility model, the amplifier P preferentially employs OP364 amplifiers and comes real
It is existing；Simultaneously the triode VT1～VT6 employs 3CG21 triodes to realize；The Zener diode D3 is then preferentially adopted
1N5221B Zener diodes are realizing.
The utility model compared with prior art, with advantages below and beneficial effect：
(1) the utility model simple structure, it is practical, and the two poles of the earth can be carried out to input voltage and recommend emitter following, energy
Effectively the driving current that drive system is exported is adjusted according to the virtual voltage and electric current of load, ensures that this reality
The stability of drive system output voltage and electric current is improved well with New Energy, makes air purifier to the clear of room air
Clean, purification effect more preferably, makes air purifier meet the demand of people well.
(2) the utility model can be suppressed or be eliminated to the surge current in input voltage, make voltage more steady, so as to
Improve the stability of the utility model output voltage.
Description of the drawings
Fig. 1 is integrated circuit structural representation of the present utility model.
Specific embodiment
The utility model is described in further detail with reference to embodiment and its accompanying drawing, but reality of the present utility model
Apply mode not limited to this.
As shown in figure 1, the utility model is mainly by amplifier P, triode VT1, triode VT2, triode VT3, three poles
Pipe VT4, triode VT5, triode VT6, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, electricity
Resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, polar capacitor C1, polar capacitor C2, pole
Property electric capacity C3, polar capacitor C4, polar capacitor C5, polar capacitor C6, diode D1, diode D2, and diode D3 composition.
To guarantee practical effect of the present utility model, the amplifier P preferentially employs OP364 amplifiers and comes real
It is existing；Triode VT1～the VT6 employs 3CG21 triodes to realize；Meanwhile, the resistance of resistance R1 is 5k Ω, resistance R2
The resistance of～R4 is 100 Ω, and the resistance of resistance R5, resistance R7 and resistance R8 is 10k Ω, and the resistance of resistance R6 is 20 Ω,
The resistance of resistance R8 is 158k Ω, and the resistance of resistance R9 is 3.32k Ω, and the resistance of resistance R10 is 25k Ω, the resistance of resistance R11
For 100k Ω, the resistance of resistance R12 is 1 Ω for the resistance of 47 Ω, resistance R13 and resistance R1；Polar capacitor C1, polar capacitor
The capacitance of C3 and polar capacitor C6 is 4 μ F, and the capacitance of polar capacitor C4 is 10 μ F, and polar capacitor C2 and polar capacitor C5 is to fill
Its capacitance of electric capacity is 10000 μ F/250V；Diode D1 is 1N5404 diodes, and diode D2 and diode D3 is
1N5406 diodes.
During connection, the positive pole of polar capacitor C3 is connected Jing after resistance R8 with the positive pole of amplifier P, and negative pole is Jing after resistance R6
It is connected with the output end of amplifier P.The P poles of diode D1 are connected Jing after resistance R9 with the negative pole of amplifier P, N poles with put
The output end of big device P is connected.The negative pole of polar capacitor C4 is grounded after being connected with the negative pole of amplifier P, positive pole Jing resistance R10
It is connected with the N poles of diode D1 afterwards.The negative pole of polar capacitor C1 is connected Jing after resistance R2 with the positive electrode of amplifier P, just
Pole is connected Jing after resistance R1 with the colelctor electrode of triode VT1.The positive pole of polar capacitor C2 is Jing after resistance R3 with triode VT1's
Base stage is connected, and negative pole is connected with the output end of amplifier P.
Wherein, the positive pole of polar capacitor C5 is connected Jing after resistance R11 with the output end of amplifier P, negative pole and triode
The base stage of VT2 is connected.The P poles of diode D2 are connected with the emitter stage of triode VT1, N poles Jing after resistance R12 with triode
The emitter stage of VT2 connects.One end of resistance R4 is connected with the emitter stage of triode VT1, the base stage phase of the other end and triode VT5
Connection.The P poles of diode D3 are connected with the emitter stage of triode VT2, N poles Jing after resistance R14 with the base stage phase of triode VT6
Connection.
Meanwhile, one end of resistance R13 is connected with the base stage of triode VT4, and the other end is connected with the base stage of triode VT3
Connect.One end of resistance R7 is connected with the emitter stage of triode VT5, and the other end is connected with the base stage of triode VT3.Polarity electricity
The positive pole for holding C6 is connected Jing after resistance R5 with the colelctor electrode of triode VT5, and negative pole is connected with the base stage of triode VT3 and is followed by
Ground.
The negative electrode ground connection of the amplifier P, its output end are also connected with the negative pole of polar capacitor C2；The polarity electricity
Hold the positive pole of C3 as the input of Surge suppression type amplifying circuit and be connected with the output stage of drive system；The triode
The colelctor electrode of VT1 is connected with the colelctor electrode of triode VT5；The minus earth of the polar capacitor C1；The triode VT2's
Colelctor electrode is grounded after being also connected with the colelctor electrode of triode VT6；The colelctor electrode of the triode VT3 and the base of triode VT5
Pole is connected, its emitter stage is connected with the emitter stage of triode VT4；The colelctor electrode of the triode VT4 and the N of diode D3
Pole is connected, its base stage is connected with the emitter stage of triode VT6；The colelctor electrode of the triode VT5 and the collection of triode VT6
Electrode is collectively forming the output end of linear amplifier circuit.
During work, the driving current of drive system output is transferred to first by amplifier P, polar capacitor C3, polar capacitor
The surge current suppression circuit that C4, diode D1, resistance R6, resistance R8 and resistance R10 are formed, i.e. input current Jing resistance R8 enters
Row current limliting, resistance R8 is the high-impedance resistors that resistance is 158k Ω, and the high current of the DC voltage in input current can be by electricity
Resistance R8 is transmitted, and the current strength of the voltage containing surge current is weaker cannot be transmitted by resistance R8, can only
The low-pass filter circuit formed by the amplifier P of surge current suppression circuit, polar capacitor C3 and resistance R6 is passed through, the low pass
Filter circuit is then suppressed or is eliminated to the surge current in electric current, improves the current strength of low-frequency d, makes low-frequency d
Current strength it is consistent with the current strength of reference dc voltage, diode D1, polar capacitor C4, resistance R9 and resistance R10 are then
Export after being adjusted to DC voltage in combination with amplifier P, suppressed or eliminated the driving electricity after reason to surge current
The output end for flowing through amplifier P is transferred to the charging circuit that polar capacitor C2, polar capacitor C5, resistance R3 and resistance R11 are formed,
Polar capacitor C2 and polar capacitor C5 obtain it is electric after start to charge up, when the electric current on polar capacitor C2 and polar capacitor C5 is sufficiently large
Then start to define VT1, VT2, VT5 and VT6 two-stage and recommend emitter follower circuit electric discharge, wherein triode VT5 and triode
VT6 is that voltage and current IGCT, i.e. polar capacitor C2 and polar capacitor C5 institutes discharge stream are 300kHz, and the two-stage recommends emitter-base bandgap grading
Circuit is followed to be amplified the frequency of the 300kHz driving currents of input, while triode VT3, polar capacitor C6, resistance
The rated voltage and current feedback of air exhauster are recommended emitter following by the feedback circuit that R5 resistance R7 and resistance R13 is formed to two-stage
Circuit, and R7 and resistance R13 is current sampling resistor, two-stage recommends emitter follower circuit then according to the voltage of feedback circuit input
The electric current for exporting is adjusted with electric current, makes output voltage and electric current be directly proportional to the rated voltage and electric current of air exhauster, from
And ensure that the output voltage and electric current of drive system are consistent with the rated voltage of air exhauster and electric current, so as to improve high air
The speed stability of the air exhauster of clarifier, can make air purifier to the cleaning of room air, the effect on driving birds is not good of purification, it is impossible to
The demand of people is met well.
Wherein, voltage and current transistor triode VT5 and triode VT6 are protected when triode VT4 is used to export open circuit；
When the emitter current of VT3 or VT4 is 0.6A, VT5 or VT6 is turned on, and is forced the base potential of VT3 or VT4 and is reduced, so as to reach
To the purpose of protection voltage and current transistor VT3 or VT4.The utility model simple structure, it is practical, and can be to input electricity
Pressure carries out the two poles of the earth and recommends emitter following, the driving electricity that effectively can be exported to drive system according to the virtual voltage and electric current of load
Stream is adjusted, and ensures that the utility model can well improve the stability of drive system output voltage and electric current, makes
Air purifier more preferably, makes air purifier meet the demand of people well the cleaning of room air, the effect of purification.
According to above-described embodiment, you can realize the utility model well.
Claims (3)
1. a kind of air purifier air exhauster drive system Surge suppression type amplifying circuit, it is characterised in that main by amplifying
Device P, triode VT1, triode VT2, triode VT3, triode VT4, triode VT5, triode VT6, positive pole Jing resistance R8
Be connected with the positive pole of amplifier P afterwards, the polar capacitor C3 that negative pole is connected Jing after resistance R6 with the output end of amplifier P, P poles
Be connected with the negative pole of amplifier P Jing after resistance R9, the diode D1 that N poles are connected with the output end of amplifier P, negative pole with put
The negative pole of big device P is grounded after being connected, the polar capacitor C4 that positive pole is connected Jing after resistance R10 with the N poles of diode D1, negative pole
Be connected with the positive electrode of amplifier P Jing after resistance R2, the pole that positive pole is connected Jing after resistance R1 with the colelctor electrode of triode VT1
Property electric capacity C1, positive pole is connected Jing after resistance R3 with the base stage of triode VT1, negative pole is connected with the output end of amplifier P
Polar capacitor C2, positive pole is connected Jing after resistance R11 with the output end of amplifier P, negative pole is connected with the base stage of triode VT2
Polar capacitor C5, P poles are connected with the emitter stage of triode VT1, N poles connect Jing after resistance R12 with the emitter stage of triode VT2
Diode D2, one end is connected with the emitter stage of triode VT1, the resistance that the other end is connected with the base stage of triode VT5
R4, P pole is connected with the emitter stage of triode VT2, the diode that N poles are connected Jing after resistance R14 with the base stage of triode VT6
D3, the resistance R13 that one end is connected with the base stage of triode VT4, the other end is connected with the base stage of triode VT3, one end with
The resistance R7 that the emitter stage of triode VT5 is connected, the other end is connected with the base stage of triode VT3, and positive pole Jing resistance
Be connected with the colelctor electrode of triode VT5 after R5, negative pole be connected with the base stage of triode VT3 after be grounded polar capacitor C6 groups
Into；The negative electrode ground connection of the amplifier P, its output end are also connected with the negative pole of polar capacitor C2；The polar capacitor C3
Positive pole as Surge suppression type amplifying circuit input；The colelctor electrode of the triode VT1 and the colelctor electrode of triode VT5
It is connected；The minus earth of the polar capacitor C1；The colelctor electrode of the triode VT2 also with the colelctor electrode phase of triode VT6
It is grounded after connection；The colelctor electrode of the triode VT3 is connected with the base stage of triode VT5, its emitter stage and triode VT4
Emitter stage is connected；The colelctor electrode of the triode VT4 is connected with the N poles of diode D3, its base stage and triode VT6 send out
Emitter-base bandgap grading is connected；The colelctor electrode of the triode VT5 is collectively forming the output of linear amplifier circuit with the colelctor electrode of triode VT6
End.
2. a kind of air purifier air exhauster drive system Surge suppression type amplifying circuit according to claim 1, its
It is characterised by, the amplifier P is OP364 amplifiers.
3. a kind of air purifier air exhauster drive system Surge suppression type amplifying circuit according to claim 2, its
It is characterised by, the triode VT1～VT6 is 3CG21 triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621076862.3U CN206135831U (en) | 2016-09-23 | 2016-09-23 | Air purifier takes out fan drive surge suppression type amplifier circuit for system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621076862.3U CN206135831U (en) | 2016-09-23 | 2016-09-23 | Air purifier takes out fan drive surge suppression type amplifier circuit for system |
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| Publication Number | Publication Date |
|---|---|
| CN206135831U true CN206135831U (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621076862.3U Active CN206135831U (en) | 2016-09-23 | 2016-09-23 | Air purifier takes out fan drive surge suppression type amplifier circuit for system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330112A (en) * | 2016-09-23 | 2017-01-11 | 四川万康节能环保科技有限公司 | Surge suppression amplifier circuit for air purifier exhaust fan driving system |
-
2016
- 2016-09-23 CN CN201621076862.3U patent/CN206135831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330112A (en) * | 2016-09-23 | 2017-01-11 | 四川万康节能环保科技有限公司 | Surge suppression amplifier circuit for air purifier exhaust fan driving system |
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