CN201928189U - Boost circuit of portable cosmetic instrument - Google Patents
Boost circuit of portable cosmetic instrument Download PDFInfo
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- CN201928189U CN201928189U CN2010206714534U CN201020671453U CN201928189U CN 201928189 U CN201928189 U CN 201928189U CN 2010206714534 U CN2010206714534 U CN 2010206714534U CN 201020671453 U CN201020671453 U CN 201020671453U CN 201928189 U CN201928189 U CN 201928189U
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- booster circuit
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Abstract
The utility model discloses a boost circuit of a portable cosmetic instrument. The boost circuit of the portable cosmetic instrument comprises a transducing piece, a liquid storage bin connected with the transducing piece, a power supply module and a boost circuit, wherein, the power supply module is a battery and used for supplying power for the portable cosmetic instrument, and the boost circuit is arranged between the power supply module and the transducing piece of the cosmetic instrument and provides driving voltage for the transducing piece. In the utility model, the partial pressure ratio of feedback resistance is changed through switching modules, so that the feedback voltage ratio of a pressure-boosting chip is adjusted, the pressure-boosting chip outputs different voltages to drive the transducing piece, so as to change the amplitude of the transducing piece, and the spraying quantization regulation is realized, meanwhile, the boost circuit has the characteristics of simple structure and low cost.
Description
Technical field
The utility model relates to a kind of beauty apparatus, particularly a kind of booster circuit of portable beauty instrument.
Background technology
At present, booster circuit is extensively utilization in electronic product, its voltage that is mainly used in battery in the electronic product is elevated to the required voltage of electronic product work, but the value of boosting of this class booster circuit is at circuit board fixedly the time, the magnitude of voltage of its rising is also fixing thereupon, can not satisfy the demand of electronic product operating voltage conversion.
Thereby prior art is still waiting to improve and improve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of booster circuit of portable beauty instrument, can regulate the driving voltage of transducing sheet by handover module.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of booster circuit of portable beauty instrument, described portable beauty instrument comprises the transducing sheet, the containing liquid chamber that is connected with the transducing sheet, supply module and booster circuit, described supply module is a battery, is used for to portable beauty instrument power supply, wherein, described booster circuit is arranged between the supply module and transducing sheet of beauty instrument, is used for providing driving voltage to the transducing sheet.
The booster circuit of described portable beauty instrument, wherein, described booster circuit comprises handover module, the chip that boosts, first inductance, first resistance, second resistance and the 3rd resistance; Described first inductance is connected between the SW port and VIN port of the chip that boosts, described first resistance string is associated between the SW port and FB port of the chip that boosts, described second resistance string is connected between described FB port and the supply module, and described supply module is connected with the VIN port of the chip that boosts; One end of described the 3rd resistance connects the FB port of the chip that boosts, and the other end is connected with handover module.
The booster circuit of described portable beauty instrument, wherein, handover module comprises diverter switch, latch and triode; Described diverter switch is connected with the base stage of triode by latch, and the collector electrode of described triode is connected grounded emitter with described the 3rd resistance.
The booster circuit of described portable beauty instrument, wherein, described booster circuit also comprises diode, and the anode of described diode is connected with the SW port of the chip that boosts, and negative electrode is connected with the transducing sheet.
The booster circuit of described portable beauty instrument, wherein, it is the integrated chip of LT1615 that the chip that boosts adopts model.
The booster circuit of described portable beauty instrument wherein, is provided with second inductance between booster circuit and transducing sheet.
The portable beauty instrument that the utility model embodiment provides can change the voltage ratio of feedback resistance by handover module, thereby adjusts the feedback voltage ratio of the chip that boosts, thereby changes the amplitude of transducing sheet, thereby realizes the adjusting of spray amount.Simultaneously this booster circuit also have simple in structure, characteristics such as cost is low.
Description of drawings
The structured flowchart of the portable beauty instrument that Fig. 1 provides for the utility model embodiment.
The circuit theory diagrams of the booster circuit that Fig. 2 provides for the utility model embodiment.
The circuit theory diagrams of the chip that boosts that Fig. 3 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and effect clearer, clear and definite, below with reference to accompanying drawing and give an actual example the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 1, the portable beauty instrument that the utility model embodiment provides (being PBM, portable beauty mist), it comprises supply module 11, booster circuit 12, transducing sheet 13 and containing liquid chamber 14.Booster circuit 12 is serially connected between supply module 11 and the transducing sheet 13, thereby is used for the voltage rising of supply module 11 outputs is driven 13 vibrations of transducing sheet.
Wherein, described containing liquid chamber is placed with water or essential oil for 14 li, and the vibration by transducing sheet 13 makes the water of 14 li of containing liquid chambers or essential oil atomizing be the ultramicron of micron level, and discharges anion, keeps face skin moist, reaches cosmetic result.
See also and consult Fig. 2 in the lump, described booster circuit 12 comprises handover module 121, the chip U1 that boosts, first inductance L 1, first resistance R 1, second resistance R 2 and the 3rd resistance R 3.
Described first inductance L 1 is connected between the SW port (being switch port) and VIN port (being input port) of the chip U1 that boosts, first resistance R 1 is connected between the SW port and FB port (feedback port) of the chip U1 that boosts, described second resistance R 2 is serially connected between described FB port and the supply module 11, and described supply module 11 is connected with the VIN port of the chip U1 that boosts; One end of described the 3rd resistance R 3 connects the FB port of the chip U1 that boosts, and the other end is connected with handover module 121.
The booster circuit that the utility model embodiment provides changes the voltage ratio (i.e. the voltage ratio of first resistance R 1 and second resistance R 2 and R3) of parallel resistance by handover module, the boost feedback voltage ratio of chip U1 of adjustment, thereby adjust the output voltage of the chip that boosts, the voltage that is carried on the transducing sheet 13 is changed, thereby change the amplitude of transducing sheet 13, realize the adjusting of spray amount.And the voltage that transducing sheet 13 loads is high more, and amplitude is big more, and spray amount is also big more.
Please consult Fig. 2 once more, described booster circuit 12 also comprises diode D1, and the anode of described diode D1 is connected with the SW port of the chip U1 that boosts, and negative electrode is connected with transducing sheet 13, and this diode D1 is main afterflow and protective effect in booster circuit.
In order to reduce the output voltage ripple of the chip that boosts, at the two ends of first resistance R 1 and be connected to first capacitor C 1.In the specific implementation, this first electric capacity generally adopts multilayer ceramic capacitor.
In the booster circuit that the utility model embodiment provides, it is the integrated chip of LT1615 that its chip that boosts adopts model.See also Fig. 3, the operation principle of this chip U1 that boosts is specific as follows:
In order to obtain high efficiency in broad output current scope, LT1615 adopts constant shut-in time control mode.The first triode Ql and the second triode Q2 form a band-gap reference that is used to regulate output voltage together with the 4th resistance R 13 and the 5th resistance R 14.
When the voltage of the FB of TL1615 pin surpasses 1.23V slightly, the first comparator A1 will make most of internal circuit be in off position.At this moment output current is provided by capacitor C12, and this capacitor will slowly discharge, and drops to below the putting than low sluggishness of the first comparator Al (typical case's sluggishness of FB pin is 8mV) up to the voltage on the FB pin.
At this moment, the first comparator A1 activates internal circuit, and conducting the 3rd power switch Q3, and the electric current among the first inductor L1 begins to rise.In case switching current reaches 350mA, the second comparator A2 resets single-shot trigger circuit, and power switch Q3 is closed 400ns.Along with the decline of inductive current, the first inductor L1 will transmit electric current to output by diode D1.Then power switch Q3 conducting once more, and first inductive current goes back up to 350mA, at this moment, the second comparator A2 resets single-shot trigger circuit, and allows the first voltage L1 to transmit electric current to output once more.
This switch motion will be sustained, and be recharged (promptly reaching 1.23V up to the FB pin voltage) until output voltage, and at this moment, the first comparator A1 closes internal circuit and restarts another cycle period.
This LT1615 chip that boosts also has protective circuit so that provide protection in opening process and under short-circuit conditions.When the voltage on the FB pin was less than about 600mV greatly, the power switch pipe shut-in time was increased to 1.5 μ s, and electric current restriction is reduced to about 250mA (normal value 70%).This has reduced average inductor current, and helps to make the power consumption of LT1615 power switch and outside first inductance L 1 and diode D1 to minimize.
Please continue to consult Fig. 1 and Fig. 2, described handover module 121 comprises diverter switch S1, latch U2 and the 3rd triode Q3.Described diverter switch S1 is connected with the base stage of the 3rd triode Q3 by latch U2, and the collector electrode of described the 3rd triode Q3 is connected grounded emitter with booster circuit 12.
In the present embodiment, it is the integrated chip of HEF4013BT that described latch adopts model, and described diverter switch S1 is connected with the CP2 port of latch, and the base stage of the 3rd triode Q3 is connected with the Q2 port of latch by the 6th resistance R 4.
Latch U2 is a kind of storage unit circuit of paired pulses level-sensitive, they can be under the effect of specific input pulse level the change state.Latch, temporary signal exactly to keep certain level state.The main effect of latch is a buffer memory, next finish at a high speed control its with the asynchronous problem of at a slow speed peripheral hardware, secondly be to solve the problem that drives again, be to solve an I/O mouth can export the problem that also can import at last.
In the specific implementation, the power supply of transducing sheet is provided by boost the chip U1 and first inductance L 1.Two grades of switchings by diverter switch S1, cooperate latch to drive the conducting state of the 3rd triode Q3, thereby the electric resistance partial pressure that changes the chip U1 feedback port that boosts is than (promptly adjusting the voltage ratio of first resistance R 1 and second resistance R 2 and the 3rd resistance R 3) by diverter switch S1, adjust the output voltage of the chip U1 that boosts in good time, by changing the on-load voltage of transducing sheet 13, thereby change the amplitude of transducing sheet 13, realize the adjusting of spray amount.
Please consult Fig. 2 once more, described supply module 11 is battery BAT, and the positive pole of described battery connects the VIN port of the chip U1 that boosts, and negative pole is connected by the FB port of second resistance R 2 with the chip U1 that boosts.In the present embodiment, described battery can adopt lithium battery, and when battery electric quantity can be use up, replacing in time got final product.
In a further embodiment, can in the circuit of portable beauty instrument, increase by a charging circuit, when battery electric quantity is used up, can charge the battery at any time.Because the design of charging circuit on electronic product has been prior art, no longer describe in detail herein.
In a further embodiment, be provided with second inductance L 2 before booster circuit and transducing sheet, an end of described second inductance L 2 is connected with the negative electrode of diode D1, and the other end is connected with the transducing sheet, voltage is provided for the transducing sheet thereby be used for energy storage.
In sum, the portable beauty instrument that the utility model embodiment provides, can switch the voltage ratio that changes feedback resistance for two grades by the diverter switch in the handover module, thereby adjust the feedback voltage ratio of the chip that boosts, make the different voltage of chip output that boosts drive the transducing sheet, thereby change the amplitude of transducing sheet, thereby realize the adjusting of spray amount.And the voltage that the transducing sheet loads is high more, and amplitude is big more, and spray amount is also big more, and the number of electric parts of this booster circuit employing is few simultaneously, and the cost of its electronic component is low, and the cost of whole portable beauty instrument is reduced, and is fit to promote the use.
Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.
Claims (6)
1. the booster circuit of a portable beauty instrument, described portable beauty instrument comprises the transducing sheet, the containing liquid chamber that is connected with the transducing sheet, supply module and booster circuit, described supply module is a battery, is used for it is characterized in that to portable beauty instrument power supply, described booster circuit is arranged between the supply module and transducing sheet of beauty instrument, is used for providing driving voltage to the transducing sheet.
2. the booster circuit of portable beauty instrument according to claim 1 is characterized in that, described booster circuit comprises handover module, the chip that boosts, first inductance, first resistance, second resistance and the 3rd resistance;
Described first inductance is connected between the SW port and VIN port of the chip that boosts, described first resistance string is associated between the SW port and FB port of the chip that boosts, described second resistance string is connected between described FB port and the supply module, and described supply module is connected with the VIN port of the chip that boosts; One end of described the 3rd resistance connects the FB port of the chip that boosts, and the other end is connected with handover module.
3. the booster circuit of portable beauty instrument according to claim 2 is characterized in that, handover module comprises diverter switch, latch and triode; Described diverter switch is connected with the base stage of triode by latch, and the collector electrode of described triode is connected grounded emitter with described the 3rd resistance.
4. the booster circuit of portable beauty instrument according to claim 2 is characterized in that, described booster circuit also comprises diode, and the anode of described diode is connected with the SW port of the chip that boosts, and negative electrode is connected with the transducing sheet.
5. the booster circuit of portable beauty instrument according to claim 2 is characterized in that, it is the integrated chip of LT1615 that the chip that boosts adopts model.
6. the booster circuit of portable beauty instrument according to claim 1 is characterized in that, is provided with second inductance between booster circuit and transducing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206714534U CN201928189U (en) | 2010-12-21 | 2010-12-21 | Boost circuit of portable cosmetic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206714534U CN201928189U (en) | 2010-12-21 | 2010-12-21 | Boost circuit of portable cosmetic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928189U true CN201928189U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206714534U Expired - Fee Related CN201928189U (en) | 2010-12-21 | 2010-12-21 | Boost circuit of portable cosmetic instrument |
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| Country | Link |
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| CN (1) | CN201928189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702106A (en) * | 2015-03-25 | 2015-06-10 | 邝嘉怡 | Booster circuit of portable beautifying instrument |
-
2010
- 2010-12-21 CN CN2010206714534U patent/CN201928189U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702106A (en) * | 2015-03-25 | 2015-06-10 | 邝嘉怡 | Booster circuit of portable beautifying instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: KANG KAI Free format text: FORMER OWNER: SHENZHEN CHIT WING TECHNOLOGY CO., LTD. Effective date: 20120621 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518110 SHENZHEN, GUANGDONG PROVINCE TO: 518001 SHENZHEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120621 Address after: Luohu District Songyuan road Shenzhen City, Guangdong province 518001 75 2 14B Patentee after: Kang Kai Address before: Luohu District City, Guangdong Province, Shenzhen Red Road 518110 No. 2068 on the eastern side of the building 13 layer GUI Patentee before: Shenzhen Chitwing Technology Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20191221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |