CN205902801U - Voltage step -up and step -down typed integrated circuit and electron cigarette - Google Patents
Voltage step -up and step -down typed integrated circuit and electron cigarette Download PDFInfo
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- CN205902801U CN205902801U CN201620882134.5U CN201620882134U CN205902801U CN 205902801 U CN205902801 U CN 205902801U CN 201620882134 U CN201620882134 U CN 201620882134U CN 205902801 U CN205902801 U CN 205902801U
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Abstract
The utility model discloses a voltage step -up and step -down typed integrated circuit and electron cigarette, this voltage step -up and step -down typed integrated circuit include power module, step -down type charge module, controller module, drive module and operational amplifier module, it is integrated in a IC chip that power module, step -down type charge module, controller module, drive module and operational amplifier module, wherein, the step -down type module of charging to charge to the battery, operational amplifier module gathers sample voltage, feeds back the controller module after handling it, drive module, output PWM signal, what drive external switch managed switches on or closes, power module supplies power to controller module and drive module, the opening or closing of module and power module of charging of controller module, control step -down type, the controller module is still according to sample voltage, adjusts peripheral power circuit's output voltage. The utility model discloses technical scheme has a high integration, advantage that the interference killing feature is strong.
Description
Technical field
The utility model is related to electronic cigarette technical field, particularly to a kind of buck-boost type integrated circuit and electronic cigarette.
Background technology
Electronic cigarette is a kind of electronic product imitating cigarette, and the solution with tobacco flavor is become smog by heating atomization
Shape, uses for smoker.With people to product portability requirements, in electronic cigarette, highly integrated application circuit is due to volume
The low advantage of little, cost, is increasingly approved by market.The voltage conversion circuit of electronic cigarette, power tube drive circuit and output
Sample circuit is its important part, and in existing electronic cigarette, buck-boost type circuit occupancy pcb space is larger, antijamming capability
Difference, is unfavorable for the lightweight design of electronics smoke product.
Utility model content
Main purpose of the present utility model is to provide a kind of buck-boost type integrated circuit, it is desirable to provide a kind of high integration
Application of integrated circuit ic, designs, by this collection ic, little, strong antijamming capability the buck-boost type circuit that takes up room.
For achieving the above object, the utility model proposes a kind of buck-boost type integrated circuit, including power module, step-down
Type charging module, controller module, drive module and amplifier module；First output end of described power module and described driving mould
The power end of block connects, and the second output end of described power module is connected with the power end of described controller module, described power supply
The controlled end of module is connected with the power control terminal of described controller module；The output end of described voltage-dropping type charging module with described
The input of power module connects, and the controlled end of described voltage-dropping type charging module is connected with the charge control end of described controller module
Connect；The controlled end of described drive module is connected with the pwm control end of described controller module；The output end of described amplifier module with
The feedback end of described controller module connects；Described power module, described voltage-dropping type charging module, described controller module, institute
State drive module and described amplifier module is all integrated in an ic chip；Wherein,
Described voltage-dropping type charging module, is depressured to the voltage of outside power input, and battery is charged；
Described amplifier module, the sampled voltage of the peripheral power circuit output end of collection, sampled voltage is processed, and instead
It is fed to described controller module；
Described drive module, accepts the control signal of described controller module, exports pwm signal, drives external switch pipe
On and off；
Described power module, to described voltage-dropping type charging module output voltage carry out transformation, to described controller module,
Described drive module is powered；
Described controller module, controls being turned on and off of described voltage-dropping type charging module and described power module；Described
Controller module, always according to sampled voltage, adjusts the output voltage of peripheral power circuit.
Preferably, described buck-boost type integrated circuit also includes peripheral charging module；Described periphery charging module includes the
One electric capacity, first resistor and battery；First earth terminal ground connection of described buck-boost type integrated circuit, the integrated electricity of described buck-boost type
The power end on road is connected with external power supply, and the first end of described first electric capacity is grounded with the first of described buck-boost type integrated circuit
End connects, and the second end of described first electric capacity is connected with the power end of described buck-boost type integrated circuit；Described buck-boost type collection
The electric current setting end becoming circuit is connected with the first end of described first resistor, the second end ground connection of described first resistor；Described liter
The negative charging end ground connection of voltage-dropping type integrated circuit, the negative charging end of described buck-boost type integrated circuit is also with described GND even
Connect；Described anode is connected with the positive charging end of described buck-boost type integrated circuit.
Preferably, described buck-boost type integrated circuit also includes peripheral boost module；Described periphery boost module includes the
Two electric capacity, the 3rd electric capacity and the first inductance；The negative input end of described buck-boost type integrated circuit and the first of described second electric capacity
End connects, the second end ground connection of described second electric capacity；The positive input terminal of described buck-boost type integrated circuit and described first inductance
First end connect, the second end of described first inductance is connected with anode；The first end ground connection of described 3rd electric capacity is described
Second end of the 3rd electric capacity is connected with anode.
Preferably, described buck-boost type integrated circuit also includes peripheral buck-boost module；Described periphery buck-
Boost module includes the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, first switch pipe, second switch pipe and the second inductance；Described
Anode is connected with the first end of described 4th electric capacity, the second end ground connection of described 4th electric capacity；Described first switch pipe
Input is connected with described anode, and the controlled end of described first switch pipe drives with the first of described buck-boost type integrated circuit
Moved end connects, and the output end of described first switch pipe is connected with the input of described second switch pipe；Described second switch pipe
Controlled end is connected with the second drive end of described buck-boost type integrated circuit, the output head grounding of described second switch pipe；Described
The output end of first switch pipe is connected with switching tube first feeder ear of described buck-boost type integrated circuit, described first switch pipe
Output end be also connected with the first end of described 5th electric capacity, the second end of described 5th electric capacity integrated electricity with described buck-boost type
The switching tube first bootstrapping feeder ear on road connects；Second earth terminal ground connection of described buck-boost type integrated circuit；Described first opens
The output end closing pipe is also connected with the first end of described second inductance, and described 6th electric capacity is passed through at the second end of described second inductance
Ground connection.
Preferably, described periphery buck-boost module also include the 7th electric capacity, the 8th electric capacity, the 3rd switching tube, the 4th
Switching tube and second resistance；Second bootstrapping feeder ear of described buck-boost type integrated circuit is with the first end of described 7th electric capacity even
Connect, the second end of described 7th electric capacity is connected with switching tube second feeder ear of described buck-boost type integrated circuit, the described 7th
Electric capacity second end is also connected with the second end of described second inductance；3rd drive end of described buck-boost type integrated circuit with described
The controlled end of the 3rd switching tube connects, and the 4th drive end of described buck-boost type integrated circuit is controlled with described 4th switching tube
End connects；3rd earth terminal of described buck-boost type integrated circuit is connected with the output end of described 4th switching tube, the 4th switch
The input of pipe is connected with the output end of described 3rd switching tube；The input of described 3rd switching tube and described second resistance
First end connects；The first end of described second resistance is connected with the first sampling end of described buck-boost type integrated circuit, and described
Second end of two resistance is connected with the second sampling end of described buck-boost type integrated circuit；The first end of described 8th electric capacity and institute
State the 3rd switching tube input to connect, the second end of described 8th electric capacity is connected with the output end of described 4th switching tube.
Preferably, described power module includes dcdc boost module and ldo module；The controlled end of described dcdc boost module
It is connected with the power control terminal of described controller module, the first output end of described dcdc boost module and described drive module
Power end connects；Second output end of described dcdc boost module is connected with the input of described ldo module, described ldo module
Output end be connected with the power end of described controller module.
Preferably, described voltage-dropping type charging module includes control unit, output protection unit, power supply output unit, feedback
Logical block and logic control element；The input of described control unit is connected with external power supply, the output of described control unit
End is connected with the input of described output protection unit；First output end of described output protection unit and described confession electricity output list
The input of unit connects, and the second output end of described output protection unit is connected with described anode；Described confession electricity output list
The output end of unit is connected with the input of described ldo module；The feedback end of described output protection unit and described feedback logic list
The input of unit connects；The electric current setting end of described feedback logic unit is connected with described first resistor first end, described feedback
The output end of logical block is connected with the input of described logic control element, the output end of described logic control element with described
The controlled end of control unit connects, and the controlled end of described logic control element is connected with the charge control end of described controller module
Connect.
Preferably, described dcdc boost module includes feedback unit, drives logical block, drive control unit, power supply single
Unit and enable control unit；The input of said supply unit is connected with the first end of described second electric capacity, described feedback unit
Sampling end be also connected with the first end of described second electric capacity, the power supply of the output end of said supply unit and described drive module
End connects；The output end of described feedback unit is connected with the described input driving logical block；Described driving logical block
Output end is connected with the controlled end of described drive control unit, and the of described drive control unit input and described first inductance
One end connects, described drive control unit output head grounding；The described controlled end enabling control unit and described controller module
Power control terminal connect, described enable control unit output end with described driving logical block controlled end be connected.
Preferably, described drive module includes driving logical block and dead band control logic unit；Described driving logic list
The power end of the power end of unit and described dead band control logic unit is all connected with the output end of described dcdc boost module；Described
The output end of dead band control logic unit is connected with the described input driving logical block；Described drive logical block controlled
End is connected with the pwm control end of described controller module.
The utility model also proposes a kind of electronic cigarette, and described electronic cigarette includes power module, voltage-dropping type charging module, control
Device module, drive module and amplifier module；First output end of described power module is connected with the power end of described drive module,
Second output end of described power module is connected with the power end of described controller module, the controlled end of described power module and institute
The power control terminal stating controller module connects；The output end of described voltage-dropping type charging module and the input of described power module
Connect, the controlled end of described voltage-dropping type charging module is connected with the charge control end of described controller module；Described drive module
Controlled end be connected with the pwm control end of described controller module；The output end of described amplifier module and described controller module
Feedback end connect；Described power module, described voltage-dropping type charging module, described controller module, described drive module and institute
State amplifier module and be all integrated in an ic chip.
Wherein, described voltage-dropping type charging module, is depressured to the voltage of outside power input, and battery is filled
Electricity；Described amplifier module, the sampled voltage of the peripheral power circuit output end of collection, feed back to described control after sampled voltage is processed
Device module processed；Described drive module, accepts the control signal of described controller module, exports pwm signal, drives external switch pipe
On and off；Described power module, carries out transformation to the voltage of described voltage-dropping type charging module output, to described controller
Module, described drive module are powered；Described controller module, controls described voltage-dropping type charging module and described power module
Be turned on and off；Described controller module, always according to sampled voltage, adjusts the output voltage of peripheral power circuit.
Technical solutions of the utility model are passed through to adopt by power module, voltage-dropping type charging module, controller module, are driven mould
Block and amplifier module are all integrated in one piece of integrated chip it is proposed that a kind of buck-boost type integrated circuit；Charged mould by voltage-dropping type
Block is depressured to outside power input；By power module be controller module and drive module is powered；By amplifier module,
Collection output voltage, and feed back to controller module；Described voltage-dropping type charging module and power supply mould are controlled by controller module
Being turned on and off of block, and accept to feed back signal, control described drive module to export pwm signal, to drive external switch pipe
On and off；It is less that technical solutions of the utility model make the internal circuit of electronic cigarette take up room, and meets people to product
Portability requirements.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the utility model buck-boost type integrated circuit one embodiment；
Fig. 2 is the functional block diagram of the utility model voltage-dropping type charging module；
Fig. 3 is the functional block diagram of the utility model dcdc boost module；
Fig. 4 is the functional block diagram of the utility model drive module.
Drawing reference numeral illustrates:
The realization of the utility model purpose, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of the utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining the relative position relation between each part, motion conditions etc. under a certain particular pose (as shown in drawings), such as
When really this particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, the description being related to " first ", " second " etc. in the utility model is only used for describing purpose, and it is not understood that
For indicating or implying its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can be expressed or implicitly include at least one this feature.In addition, the technical side between each embodiment
Case can be combined with each other, but must be capable of by those of ordinary skill in the art based on, when the combination of technical scheme
Will be understood that the combination of this technical scheme does not exist when appearance is conflicting or cannot realize, also do not require in the utility model
Protection domain within.
The utility model proposes a kind of new integrated circuit of buck.
With reference to Fig. 1, in the utility model embodiment, described buck-boost type integrated circuit include voltage-dropping type charging module 100,
Power supply mould 200, controller module 300, drive module 400 and amplifier module 500；First output end of described power module 200
It is connected with the power end of described drive module 400, the second output end of described power module 200 and described controller module 300
Power end connect, the controlled end of described power module 200 is connected with the power control terminal of described controller module 300；Described
The output end of voltage-dropping type charging module 100 is connected with the input of described power module 200, described voltage-dropping type charging module 100
Controlled end be connected with the charge control end of described controller module 300；The controlled end of described drive module 400 and described control
The pwm control end of device module 300 connects；The output end of described amplifier module 500 is connected with the feedback end of described controller module 300
Connect；Described power module 200, described voltage-dropping type charging module 100, described controller module 300, described drive module 400 and
Described amplifier module 500 is all integrated in an ic chip.
Wherein, described voltage-dropping type charging module 100, is depressured to the voltage of outside power supply vcc+ input, and to electricity
Pond bar is charged；500 pieces of described amplifier, the sampled voltage of the peripheral power circuit output end of collection, at sampled voltage
Reason, and feed back to described controller module 300；Described drive module 400, accepts the control signal of described controller module 300,
Output pwm signal, drives the on and off of external switch pipe；Described power module 200, to described voltage-dropping type charging module
The voltage of 100 outputs carries out transformation, and described controller module 300, described drive module 400 are powered；Described controller
Module 300, controls being turned on and off of described voltage-dropping type charging module 100 and described power module 200；Described controller module
300, always according to sampled voltage, adjust the output voltage of peripheral power circuit.
It should be noted that amplifier module 500 passes through outside sample circuit obtains sampled voltage, and the voltage to sampling
It is amplified, is transmitted to controller module 300, controller module 300 judges that the sampled voltage that amplifier module 500 transmits is
No such as go beyond the scope beyond preset range, then controller module 300 controls the pwm signal of drive module 400 its output of adjustment
Dutycycle, thus controlling the work of the reduction voltage circuit of outside, output is adjusted within the required range.
In the utility model embodiment, described buck-boost type integrated circuit also can be with described key-press module 600 and described aobvious
Show that module 700 connects, the output end of described key-press module 600 is connected with the key-press input end of described controller module 300,
The input of described display module 700 is connected with the display output end of described controller module 300；
Further, in the utility model embodiment, described voltage-dropping type charging module 100 uses the linear of 5v input
Voltage-dropping type charge management circuit is it is adaptable to the charging of batteries.
Technical solutions of the utility model are passed through to adopt power module 200, voltage-dropping type charging module 100, controller module
300th, drive module 400 and amplifier module 500 are all integrated in one piece of integrated chip it is proposed that a kind of integrated electricity of buck-boost type
Road；By voltage-dropping type charging module 100, outside power input is depressured；It is controller module 300 and drive by power module 200
Dynamic model block 200 is powered；By amplifier module 500, gather output voltage, and feed back to controller module 300；By controller
Module 300 controls being turned on and off of described voltage-dropping type charging module 100 and power module 200, and accepts to feed back signal, controls
Described drive module 400 exports pwm signal, to drive the on and off of external switch pipe；Technical solutions of the utility model make
The internal circuit of electronic cigarette takes up room less, meets people to product portability requirements.
Specifically, described buck-boost type integrated circuit also includes peripheral charging module 800；Described periphery charging module 800
Including the first electric capacity c1, first resistor r1 and battery bar；First earth terminal a ground connection of described buck-boost type integrated circuit is described
The power end b of buck-boost type integrated circuit is connected with external power supply, the first end of described first electric capacity c1 and described buck-boost type
First earth terminal a connection, second end of described first electric capacity c1 and the power supply of described buck-boost type integrated circuit of integrated circuit
End b connects；The electric current setting end c of described buck-boost type integrated circuit is connected with the first end of described first resistor r1, and described the
The second end ground connection of one resistance r1；The negative charging end e ground connection of described buck-boost type integrated circuit, described buck-boost type integrated circuit
Negative charging end e be also connected with described battery bar negative pole；Described anode bar is with described buck-boost type integrated circuit just
Charging end f connects.
It should be noted that the first electric capacity c1 to use as the input capacitance of described voltage-dropping type charging module, play filtering
Effect.
Specifically, described buck-boost type integrated circuit also includes peripheral boost module 900；Described periphery boost module 900
Including the second electric capacity c2, the 3rd electric capacity c3 and the first inductance l1；The negative input end h of described buck-boost type integrated circuit and described the
The first end of two electric capacity c2 connects, the second end ground connection of described second electric capacity c2；The positive input of described buck-boost type integrated circuit
End g is connected with the first end of described first inductance l1, and second end of described first inductance l1 is connected with battery bar positive pole；Described
The first end ground connection of the 3rd electric capacity c3, second end of described 3rd electric capacity c3 is connected with battery bar positive pole.
It should be noted that the 3rd electric capacity c3 is the input capacitance of described dcdc boost module 210, the second electric capacity c2 is to rise
Pressure output capacitance；First inductance l1 to use for the energy storage inductor of external circuit.
Specifically, described buck-boost type integrated circuit also includes peripheral buck-boost module 1000；Described periphery buck-
Boost module 1000 include the 4th electric capacity c4, the 5th electric capacity c5, the 6th electric capacity c6, first switch pipe q1, second switch pipe q2 and
Second inductance l2；Described battery bar positive pole is connected with the first end of described 4th electric capacity c4, second end of described 4th electric capacity c4
Ground connection；The input of described first switch pipe q1 is connected with described battery bar positive pole, the controlled end of described first switch pipe q1 with
First drive end k connection, the output end of described first switch pipe q1 and the described second switch of described buck-boost type integrated circuit
The input of pipe q2 connects；The controlled end of described second switch pipe q2 and the second drive end l of described buck-boost type integrated circuit
Connect, the output head grounding of described second switch pipe q2；The output end of described first switch pipe q1 is integrated with described buck-boost type
The switching tube first power supply j of circuit connects, the output end of the described first switch pipe q1 first end also with described 5th electric capacity c5
Connect, second end of described 5th electric capacity c5 is connected with the switching tube first bootstrapping feeder ear i of described buck-boost type integrated circuit；
Second earth terminal m ground connection of described buck-boost type integrated circuit；The output end of described first switch pipe q1 is also electric with described second
The first end of sense l2 connects, and described 6th electric capacity c6 ground connection is passed through at second end of described second inductance l2.
Specifically, described periphery buck-boost module 1000 also includes the 7th electric capacity c7, the 8th electric capacity c8, the 3rd switch
Pipe q3, the 4th switching tube q4 and second resistance r2；Second bootstrapping feeder ear n and the described 7th of described buck-boost type integrated circuit
The first end of electric capacity c7 connects, and second end of described 7th electric capacity c7 is supplied with the switching tube second of described buck-boost type integrated circuit
Electric end o connects, and described 7th electric capacity c7 the second end is also connected with second end of described second inductance l2；Described buck-boost type is integrated
3rd drive end p of circuit is connected with the controlled end of described 3rd switching tube q3, the 4 wheel driven of described buck-boost type integrated circuit
Moved end q is connected with the controlled end of described 4th switching tube q4；3rd earth terminal r of described buck-boost type integrated circuit and described the
The output end of four switching tube q4 connects, and the input of the 4th switching tube q4 is connected with the output end of described 3rd switching tube q3；Institute
The input stating the 3rd switching tube q3 is connected with the first end of described second resistance r2；The first end of described second resistance r2 and institute
The first sampling end s stating buck-boost type integrated circuit connects, and the second end of described second resistance r2 is integrated with described buck-boost type
Second sampling t end of circuit connects；The first end of described 8th electric capacity c8 is connected with described 3rd switching tube q3 input, described
Second end of the 8th electric capacity c8 is connected with the output end of described 4th switching tube q4.
It should be noted that first switch pipe q1, second switch pipe q2, the 3rd switching tube q3 and the 4th switching tube q4 all make
Realized with mos pipe；5th electric capacity c5 and the 7th electric capacity c7 to use as bootstrap capacitor；4th electric capacity c4 is as input electricity
Hold and use.First switch pipe q1, second switch pipe q2 and the second inductance l2 composition buck buck topology circuit, first switch pipe q1
For upper arm mos pipe, second switch pipe q2 is underarm mos pipe, and the second inductance l2 is energy storage inductor；3rd switching tube q3, the 4th open
Close pipe q4 and the second inductance l2 and together form boost boost topology circuit, the 3rd switching tube q3 manages for upper arm mos, the 4th switch
Pipe q4 manages for underarm mos；By the collocation of buck-boost full-bridge circuit, realize up-down voltage power output；8th electric capacity c8 makees
Use for output capacitance.During work, pwm signal is exported by buck-boost type integrated circuit, control first switch pipe q1, second open
The ON time closing pipe q2, the 3rd switching tube q3 and the 4th switch q4 is controlling peripheral buck-boost module 1000.Described
Second end of two resistance r2 is the cathode output end of described buck-boost type integrated circuit, and the output end of described 4th switching tube q4 is
The cathode output end of described buck-boost type integrated circuit.
Further, two sampling end of described amplifier module 500 check the voltage at second resistance r2 two ends, and will sample
The signal that arrives amplifies, and is transferred to controller module 300, is converted to, by controller module 300, the magnitude of voltage being sampled to and flows through the
The current value of two resistance r2, realizes dynamic control.
Specifically, described power module 200 includes dcdc boost module 210 and ldo module 220；Described dcdc rises pressing mold
The controlled end of block 210 is connected with the power control terminal of described controller module 300, and the first of described dcdc boost module 210 is defeated
Go out end to be connected with the power end of described drive module 400；Second output end of described dcdc boost module 210 and described ldo mould
The input of block 220 connects, and the output end of described ldo module 220 is connected with the power end of described controller module 300.
It should be noted that described ldo module 220 also can be connected with the output end of voltage-dropping type charging module 100, directly by
Voltage-dropping type charging module 100 is powered.
Further, ldo (low dropout regulator, low pressure difference linear voltage regulator) is linear with respect to traditional
For voltage-stablizer, the difference between required input voltage and out-put supply is less.Ldo module 220 is used for controller mould
Block 300 is powered；Dcdc boost module 210 is used for the power supply of drive module 400.
In the utility model embodiment, ldo output end d of described voltage-dropping type integrated circuit and the first of described 9th electric capacity
End connects, described 9th electric capacity the second end ground connection.
With reference to Fig. 2, specifically, described voltage-dropping type charging module 100 include control unit 110, output protection unit 120,
Power supply output unit 130, feedback logic unit 140 and logic control element 150；The input of described control unit 110 is with outward
Meet power supply vcc to connect, the output end of described control unit 110 is connected with the input of described output protection unit 120；Described defeated
The first output end going out protection location 120 is connected with the input of described power supply output unit 130, described output protection unit
120 the second output end is connected with described battery bar positive pole；The output end of described power supply output unit 130 and described ldo module
220 input connects；The feedback end of described output protection unit 120 is connected with the input of described feedback logic unit 140；
The electric current setting end of described feedback logic unit 140 is connected with described first resistor r1 first end, described feedback logic unit 140
Output end be connected with the input of described logic control element 150, the output end of described logic control element 150 and described control
The controlled end of unit 110 processed connects, the charging control of the controlled end of described logic control element 150 and described controller module 300
End processed connects.
It should be noted that control unit 110 is arranged in pairs or groups, peripheral first electric capacity c1 and first resistor r1 composition reduction voltage circuit, right
Power supply is depressured；It is then passed through output protection unit 120, carries out overvoltage and overcurrent protection and export, pass through anti-simultaneously
Feedback logical block 140 and logic control element 150 are sampled and are fed back, and carry out dynamic equilibrium adjustment to control unit 110；For
The effect of electricity output unit 130 is mainly powered to internal ldo module 220 processing.
Further, when battery bar is full of, logic control element 150 transmits a signal to controller module 300, by controlling
Device module 300 processed controls and stops battery being charged.
With reference to Fig. 3, specifically, described dcdc boost module 210 includes feedback unit 213, drives logical block 214, drives
Dynamic control unit 215, power supply unit 211 and enable control unit 212；The input of said supply unit 211 and described second
Electric capacity first end connects, and the sampling end of described feedback unit is also connected with described second electric capacity first end, said supply unit 211
Output end be connected with the power end of described drive module 400；The output end of described feedback unit 213 and described driving logic list
The input of unit 214 connects；The controlled end of the described output end driving logical block 214 and described drive control unit 215 is even
Connect, described drive control unit 215 input is connected with the first end of described first inductance, and described drive control unit 215 is defeated
Go out end ground connection；The described controlled end enabling control unit 212 is connected with the power control terminal of described controller module 300, described
The output end enabling control unit 212 is connected with the described controlled end driving logical block 214.
It should be noted that enable control unit 212 to be used for controlling the open and close of whole dcdc boost module 210；
Feedback unit 213 is used for output voltage is sampled, and sampling value is carried out logic level and compares conversion；Drive logical block
The pwm drive signal of 214 generation fixed frequencies, provides the value coming to be compared control pwm according to feedback unit 213 and drives letter
Number dutycycle, realize voltage stabilizing closed-loop control.
With reference to Fig. 4, specifically, described drive module 400 includes driving logical block 410 and dead band control logic unit
420；The described power end driving the power end of logical block 410 and described dead band control logic unit 420 all with described dcdc
The output end of boost module 210 connects；The output end of described dead band control logic unit 420 and described driving logical block 410
Input connect；The described controlled end driving logical block 410 is connected with the pwm control end of described controller module 300.
It should be noted that described drive module 400 is used for receiving the pwm signal of controller module 300, the drive of output pwm
Dynamic signal, to drive the switching tube of buck circuit and boost circuit.
Technical solutions of the utility model are passed through to adopt voltage-dropping type charging module 100, power module 200, controller module
300th, drive module 400 and amplifier module 500 are all integrated in one piece of integrated chip it is proposed that a kind of little lifting that takes up room
Die mould integrated circuit；By described voltage-dropping type charging module 100 and its peripheral circuit, outside power input is boosted；By power supply
It is transferred to power module 200 and its peripheral circuit, transformation is carried out to power supply, be that controller module 300, drive module 400 are carried out
Power supply；Control the open and close of described voltage-dropping type charging module 100 and power module 200 by controller 300 module, and connect
By feedback signal, control described drive module 400 to export pwm signal, to drive the on and off of external switch pipe, finally by
Outside buck reduction voltage circuit carries out power output.Technical solutions of the utility model take up room little, low cost, antijamming capability
By force, people are met to product portability requirements.
The utility model also proposes a kind of electronic cigarette, and this electronic cigarette includes buck-boost type integrated circuit as above, should
Concrete structure reference above-described embodiment of buck-boost type integrated circuit, because this electronic cigarette employs the complete of above-mentioned all embodiments
Portion's technical scheme, therefore at least has all beneficial effects that the technical scheme of above-described embodiment is brought, and here is no longer one by one
Repeat.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be indirectly used in other related technical fields and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of buck-boost type integrated circuit it is characterised in that include power module, voltage-dropping type charging module, controller module,
Drive module, amplifier module；First output end of described power module is connected with the power end of described drive module, described power supply
Second output end of module is connected with the power end of described controller module, the controlled end of described power module and described controller
The power control terminal of module connects；The output end of described voltage-dropping type charging module is connected with the input of described power module, institute
The charge control end of the controlled end and described controller module of stating voltage-dropping type charging module is connected；The controlled end of described drive module
It is connected with the pwm control end of described controller module；The output end of described amplifier module and the feedback end of described controller module
Connect；Described power module, described voltage-dropping type charging module, described controller module, described drive module and described amplifier mould
Block is all integrated in an ic chip；Wherein,
Described voltage-dropping type charging module, is depressured to the voltage of outside power input, and battery is charged；
Described amplifier module, the sampled voltage of the peripheral power circuit output end of collection, sampled voltage is processed, and is fed back to
Described controller module；
Described drive module, accepts the control signal of described controller module, exports pwm signal, drives leading of external switch pipe
Lead to or close；
Described power module, carries out transformation to the voltage of described voltage-dropping type charging module output, to described controller module, described
Drive module is powered；
Described controller module, controls being turned on and off of described voltage-dropping type charging module and described power module；Described control
Device module, always according to sampled voltage, adjusts the output voltage of peripheral power circuit.
2. buck-boost type integrated circuit as claimed in claim 1 is it is characterised in that also include peripheral charging module；Described outer
Enclose charging module and include the first electric capacity, first resistor and battery；First earth terminal ground connection of described buck-boost type integrated circuit, institute
The power end stating buck-boost type integrated circuit is connected with external power supply, the first end of described first electric capacity and described buck-boost type collection
The first earth terminal becoming circuit connects, and the second end of described first electric capacity is connected with the power end of described buck-boost type integrated circuit
Connect；The electric current setting end of described buck-boost type integrated circuit is connected with the first end of described first resistor, described first resistor
Second end ground connection；The negative charging end ground connection of described buck-boost type integrated circuit, the negative charging end of described buck-boost type integrated circuit
Also it is connected with described GND；Described anode is connected with the positive charging end of described buck-boost type integrated circuit.
3. buck-boost type integrated circuit as claimed in claim 2 is it is characterised in that also include peripheral boost module；Described outer
Enclose boost module and include the second electric capacity, the 3rd electric capacity and the first inductance；The negative input end of described buck-boost type integrated circuit and institute
The first end stating the second electric capacity connects, the second end ground connection of described second electric capacity；The positive input of described buck-boost type integrated circuit
End is connected with the first end of described first inductance, and the second end of described first inductance is connected with anode；Described 3rd electric capacity
First end ground connection, the second end of described 3rd electric capacity is connected with anode.
4. buck-boost type integrated circuit as claimed in claim 3 is it is characterised in that also include peripheral buck-boost module；
Described periphery buck-boost module include the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, first switch pipe, second switch pipe and
Second inductance；Described anode is connected with the first end of described 4th electric capacity, the second end ground connection of described 4th electric capacity；Described
The input of first switch pipe is connected with described anode, and the controlled end of described first switch pipe is integrated with described buck-boost type
First drive end of circuit connects, and the output end of described first switch pipe is connected with the input of described second switch pipe；Described
The controlled end of second switch pipe is connected with the second drive end of described buck-boost type integrated circuit, the output of described second switch pipe
End ground connection；The output end of described first switch pipe is connected with switching tube first feeder ear of described buck-boost type integrated circuit, institute
The output end stating first switch pipe is also connected with the first end of described 5th electric capacity, the second end of described 5th electric capacity and described liter
The switching tube first bootstrapping feeder ear of voltage-dropping type integrated circuit connects；Second ground connection termination of described buck-boost type integrated circuit
Ground；The output end of described first switch pipe is also connected with the first end of described second inductance, and the second end of described second inductance leads to
Cross described 6th capacity earth.
5. buck-boost type integrated circuit as claimed in claim 4 is it is characterised in that described periphery buck-boost module is also wrapped
Include the 7th electric capacity, the 8th electric capacity, the 3rd switching tube, the 4th switching tube and second resistance；The of described buck-boost type integrated circuit
Two bootstrapping feeder ears are connected with the first end of described 7th electric capacity, and the second end of described 7th electric capacity is integrated with described buck-boost type
Switching tube second feeder ear of circuit connects, and described 7th electric capacity the second end is also connected with the second end of described second inductance；Institute
The 3rd drive end stating buck-boost type integrated circuit is connected with the controlled end of described 3rd switching tube, the integrated electricity of described buck-boost type
4th drive end on road is connected with the controlled end of described 4th switching tube；3rd earth terminal of described buck-boost type integrated circuit with
The output end of described 4th switching tube connects, and the input of the 4th switching tube is connected with the output end of described 3rd switching tube；Institute
The input stating the 3rd switching tube is connected with the first end of described second resistance；The first end of described second resistance and described lifting
First sampling end of die mould integrated circuit connects, the second end of described second resistance and the second of described buck-boost type integrated circuit
Sampling end connects；The first end of described 8th electric capacity is connected with described 3rd switching tube input, and the second of described 8th electric capacity
End is connected with the output end of described 4th switching tube.
6. buck-boost type integrated circuit as claimed in claim 5 rises pressing mold it is characterised in that described power module includes dcdc
Block and ldo module；The controlled end of described dcdc boost module is connected with the power control terminal of described controller module, described dcdc
First output end of boost module is connected with the power end of described drive module；Second output end of described dcdc boost module with
The input of described ldo module connects, and the output end of described ldo module is connected with the power end of described controller module.
7. buck-boost type integrated circuit as claimed in claim 6 is it is characterised in that described voltage-dropping type charging module includes controlling
Unit, output protection unit, power supply output unit, feedback logic unit and logic control element；The input of described control unit
End is connected with external power supply, and the output end of described control unit is connected with the input of described output protection unit；Described output
First output end of protection location is connected with the input of described power supply output unit, the second output of described output protection unit
End is connected with described anode；The output end of described power supply output unit is connected with the input of described ldo module；Described defeated
The feedback end going out protection location is connected with the input of described feedback logic unit；The electric current setting end of described feedback logic unit
It is connected with described first resistor first end, the output end of described feedback logic unit is connected with the input of described logic control element
Connect, the output end of described logic control element is connected with the controlled end of described control unit, described logic control element controlled
End is connected with the charge control end of described controller module.
8. buck-boost type integrated circuit as claimed in claim 7 is it is characterised in that described dcdc boost module includes feedback
Unit, driving logical block, drive control unit, power supply unit and enable control unit；The input of said supply unit and institute
The first end stating the second electric capacity connects, and the sampling end of described feedback unit is also connected with the first end of described second electric capacity, described
The output end of power supply unit is connected with the power end of described drive module；The output end of described feedback unit and described driving logic
The input of unit connects；The described output end driving logical block is connected with the controlled end of described drive control unit, described
Drive control unit input is connected with the first end of described first inductance, described drive control unit output head grounding；Described
The controlled end enabling control unit is connected with the power control terminal of described controller module, the described output end enabling control unit
It is connected with the described controlled end driving logical block.
9. buck-boost type integrated circuit as claimed in claim 8 is it is characterised in that described drive module includes driving logic list
Unit and dead band control logic unit；The power end of the described power end driving logical block and described dead band control logic unit is all
It is connected with the output end of described dcdc boost module；The output end of described dead band control logic unit and described driving logical block
Input connect；The described controlled end driving logical block is connected with the pwm control end of described controller module.
10. a kind of electronic cigarette is it is characterised in that described electronic cigarette includes the buck as described in claim 1-9 any one
Type integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620882134.5U CN205902801U (en) | 2016-08-12 | 2016-08-12 | Voltage step -up and step -down typed integrated circuit and electron cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620882134.5U CN205902801U (en) | 2016-08-12 | 2016-08-12 | Voltage step -up and step -down typed integrated circuit and electron cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205902801U true CN205902801U (en) | 2017-01-25 |
Family
ID=57800398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620882134.5U Active CN205902801U (en) | 2016-08-12 | 2016-08-12 | Voltage step -up and step -down typed integrated circuit and electron cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205902801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510269A (en) * | 2018-12-03 | 2019-03-22 | 深圳市德帮能源科技有限公司 | A kind of charger |
| WO2019153653A1 (en) * | 2018-02-09 | 2019-08-15 | 常州市派腾电子技术服务有限公司 | Voltage output circuit and electronic cigarette |
-
2016
- 2016-08-12 CN CN201620882134.5U patent/CN205902801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153653A1 (en) * | 2018-02-09 | 2019-08-15 | 常州市派腾电子技术服务有限公司 | Voltage output circuit and electronic cigarette |
| CN109510269A (en) * | 2018-12-03 | 2019-03-22 | 深圳市德帮能源科技有限公司 | A kind of charger |
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