CN103604189A - Separately excited ultrasonic atomization control circuit - Google Patents

Separately excited ultrasonic atomization control circuit Download PDF

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Publication number
CN103604189A
CN103604189A CN201310206956.2A CN201310206956A CN103604189A CN 103604189 A CN103604189 A CN 103604189A CN 201310206956 A CN201310206956 A CN 201310206956A CN 103604189 A CN103604189 A CN 103604189A
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China
Prior art keywords
module
atomization
control circuit
main control
signal
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CN201310206956.2A
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Chinese (zh)
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CN103604189B (en
Inventor
钟石刚
张秋俊
敬仕林
罗香妮
张娟
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珠海格力电器股份有限公司
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Publication of CN103604189A publication Critical patent/CN103604189A/en
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Publication of CN103604189B publication Critical patent/CN103604189B/en

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    • Y02B30/80

Abstract

The invention discloses a separately excited ultrasonic atomization control circuit. The separately excited ultrasonic atomization control circuit comprises a power source module which comprises an atomization power source management unit and a main control power source management unit, a main control module which generates into resonant frequency signals according to clock frequency signals, a power driving module which performs switch transformation driving on the resonant frequency signals and a wave type conversion module which performs wave conversion on the resonant frequency signals which are performed switch transformation driving and outputs sine waves to an atomization piece. The separately excited ultrasonic atomization control circuit has the advantages of being high in humidification efficiency, low in power consumption and convenient to operate. The separately excited ultrasonic atomization control circuit also comprises an atomization amount adjustment module which provides power source adjustment signals. According to the separately excited ultrasonic atomization control circuit, the main control module gathers the power source adjustment signals to generate into atomization voltage control signals; the atomization power source management unit receives the atomization voltage control signals, modulates the atomization power source and outputs atomization sources with different voltages to the wave type conversion module to achieve stepless adjustment of the fog amount.

Description

Independent-excited ultrasonic atomization control circuit

Technical field

The invention belongs to electronic circuit technology field, relate in particular to ultrasonic atomization control circuit.

Background technology

The ultrasonic humidifier using at present, the oscillating circuit of its atomizer is auto-excitation type, also adopts general capacitance three-point type, inductance of three-point oscillating circuit, allows atomizing piece resonance in the frequency of 1.7MHz.

For example, the controller for supersonic atomizer that No. 92221224.4 disclosed a kind of atomizations of liquid of utility model of China are used, it comprises power supply, oscillator and transducer three parts, and oscillator forms Colpitts oscillation circuit by two generator triodes in parallel and electric capacity, resistance, inductance and negative thermistor.

The defect of prior art is: general self-maintained circuit, and the large power triode power consumption of use is large, and uniformity is poor and conversion efficiency is low, so the humidification efficiency of domestic ultrasonic humidifier is difficult to reach higher standard at present.

Summary of the invention

One object of the present invention is to provide that a kind of power consumption is little, nebulization efficiency is high, and the adjustable atomization control circuit of resonant frequency; This object is realized by following technical scheme:

An independent-excited ultrasonic atomization control circuit, is characterized in that, comprising:

Power module, comprises atomization PMU and master control PMU, and atomization PMU is waveform transformation module for power supply, and master control PMU is main control module power supply;

Main control module, generates resonant frequency signal according to clock frequency signal, and exports to power driver module;

Power driver module, carries out switch transition driving to described resonant frequency signal;

Waveform transformation module, the resonant frequency signal after switch transition is driven is carried out waveform transformation, and sine wave output is to atomizing piece.

As concrete technical scheme, described main control module comprises main control chip U2 and system clock circuit, and system clock circuit is the adjustable RC oscillating circuit of frequency.

As concrete technical scheme, described power driver module comprises RC filter circuit and metal-oxide-semiconductor Q1, and RC filter circuit is arranged between the G utmost point of metal-oxide-semiconductor Q1 and the resonant frequency signal output pin of main control chip U2.

As concrete technical scheme, described waveform transformation module comprises inductance L 1, capacitor C 10, capacitor C 11, inductance L 2; Inductance L 1 one end connects the atomization PMU of power module, the other end connects the node of capacitor C 10 and inductance L 2, inductance L 2 other ends connect the D utmost point of metal-oxide-semiconductor Q1, the other end of capacitor C 10 connects one end of atomizing piece Y2, the other end of atomizing piece Y2 connects the S utmost point of metal-oxide-semiconductor Q1, and capacitor C 11 is connected in parallel on the two ends of atomizing piece Y2.

Above-mentioned independent-excited ultrasonic atomization control circuit also comprises current detection module, gathers the operating current of waveform transformation module and inputs main control module; Described main control module generates working state signal according to the operating current of the waveform transformation module gathering.

Above-mentioned independent-excited ultrasonic atomization control circuit also comprises water level detecting module, gathers water level detecting signal and inputs main control module; Described main control module generates working state signal according to the water level detecting signal gathering.

Above-mentioned independent-excited ultrasonic atomization control circuit also comprises air blast driver module, receives the fans drive signal driver blower fan of main control module output; Described power module also comprises fan power supply administrative unit, is blower fan power supply.

Further aim of the present invention is to provide a kind of independent-excited ultrasonic atomization control circuit that can the defeated fog-supplying amount of step-less adjustment; This object is realized by following technical scheme:

Above-mentioned independent-excited ultrasonic atomization control circuit: also comprise mist amount adjustment module, provide power adjustment signal to main control module; Described main control module gathers described power adjustment signal, with the comparison of described master control power supply, and generates atomization voltage control signal; Described atomization PMU receives described atomization voltage control signal, atomization power supply is modulated to the atomization source of exporting different voltages for described waveform transformation module.

As concrete technical scheme, described mist amount adjustment module generates described power adjustment signal by described master control power supply is carried out to dividing potential drop.

As concrete technical scheme, described atomization voltage control signal is pwm signal, and described atomization PMU is PWM Switching Power Supply.

Beneficial effect of the present invention is: humidification efficiency is high, can easily reach the A level humidification efficiency of industry standard, low in energy consumption, has saved large electric capacity or the inductance of auto-excitation type; Easy and simple to handle, can realize mist amount step-less adjustment; In addition, also realized multi-protective function, in the humidifier product of middle and high end, cost is lower, and reliability is high.

Accompanying drawing explanation

Fig. 1 is the formation block diagram that the independent-excited that provides of embodiment drives atomization control circuit.

Fig. 2 is the circuit theory diagrams that the independent-excited that provides of embodiment drives atomization control circuit.

Claims (10)

1. an independent-excited ultrasonic atomization control circuit, is characterized in that, comprising:
Power module, comprises atomization PMU and master control PMU, and atomization PMU is waveform transformation module for power supply, and master control PMU is main control module power supply;
Main control module, generates resonant frequency signal according to clock frequency signal, and exports to power driver module;
Power driver module, carries out switch transition driving to described resonant frequency signal;
Waveform transformation module, the resonant frequency signal after switch transition is driven is carried out waveform transformation, and sine wave output is to atomizing piece.
2. independent-excited ultrasonic atomization control circuit according to claim 1, is characterized in that, described main control module comprises main control chip U2 and system clock circuit, and system clock circuit is the adjustable RC oscillating circuit of frequency.
3. independent-excited ultrasonic atomization control circuit according to claim 1, it is characterized in that, described power driver module comprises RC filter circuit and metal-oxide-semiconductor Q1, and RC filter circuit is arranged between the G utmost point of metal-oxide-semiconductor Q1 and the resonant frequency signal output pin of main control chip U2.
4. independent-excited ultrasonic atomization control circuit according to claim 3, is characterized in that, described waveform transformation module comprises inductance L 1, capacitor C 10, capacitor C 11, inductance L 2; Inductance L 1 one end connects the atomization PMU of power module, the other end connects the node of capacitor C 10 and inductance L 2, inductance L 2 other ends connect the D utmost point of metal-oxide-semiconductor Q1, the other end of capacitor C 10 connects one end of atomizing piece Y2, the other end of atomizing piece Y2 connects the S utmost point of metal-oxide-semiconductor Q1, and capacitor C 11 is connected in parallel on the two ends of atomizing piece Y2.
5. independent-excited ultrasonic atomization control circuit according to claim 4, is characterized in that, also comprises current detection module, gathers the operating current of waveform transformation module and inputs main control module; Described main control module generates working state signal according to the operating current of the waveform transformation module gathering.
6. independent-excited ultrasonic atomization control circuit according to claim 1, is characterized in that, described control circuit also comprises water level detecting module, gathers water level detecting signal and inputs main control module; Described main control module generates working state signal according to the water level detecting signal gathering.
7. independent-excited ultrasonic atomization control circuit according to claim 1, is characterized in that, described control circuit also comprises air blast driver module, receives the fans drive signal driver blower fan of main control module output; Described power module also comprises fan power supply administrative unit, is blower fan power supply.
8. according to the independent-excited ultrasonic atomization control circuit described in claim 1-7 any one, it is characterized in that, described control circuit also comprises mist amount adjustment module, provides power adjustment signal to main control module; Described main control module gathers described power adjustment signal, with the comparison of described master control power supply, and generates atomization voltage control signal; Described atomization PMU receives described atomization voltage control signal, atomization power supply is modulated to the atomization source of exporting different voltages for described waveform transformation module.
9. independent-excited ultrasonic atomization control circuit according to claim 8, is characterized in that, described mist amount adjustment module generates described power adjustment signal by described master control power supply is carried out to dividing potential drop.
10. independent-excited ultrasonic atomization control circuit according to claim 9, is characterized in that, described atomization voltage control signal is pwm signal, and described atomization PMU is PWM Switching Power Supply.
CN201310206956.2A 2013-05-29 2013-05-29 Independent-excited ultrasonic atomization controls circuit CN103604189B (en)

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Application Number Priority Date Filing Date Title
CN201310206956.2A CN103604189B (en) 2013-05-29 2013-05-29 Independent-excited ultrasonic atomization controls circuit

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CN103604189A true CN103604189A (en) 2014-02-26
CN103604189B CN103604189B (en) 2017-08-11

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104623770A (en) * 2014-11-21 2015-05-20 无锡科思电子科技有限公司 Self-adaptation atomizing device
CN104635813A (en) * 2014-11-21 2015-05-20 无锡科思电子科技有限公司 Method for adaptively controlling atomization
CN105457821A (en) * 2014-09-05 2016-04-06 台达电子工业股份有限公司 Atomizer and control method suitable for same
WO2018153171A1 (en) * 2017-02-24 2018-08-30 湖南中烟工业有限责任公司 Oscillation control circuit of ultrasonic atomization sheet and ultrasonic electronic cigarette
CN109127257A (en) * 2018-10-29 2019-01-04 无锡中微爱芯电子有限公司 A kind of atomizer dedicated control circuit
WO2019113789A1 (en) * 2017-12-12 2019-06-20 深圳和而泰数据资源与云技术有限公司 Frequency locking circuit and control method therefor

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Publication number Priority date Publication date Assignee Title
CN2437418Y (en) * 2000-06-09 2001-07-04 左自强 Ultrasonic generator
CN200957394Y (en) * 2006-09-30 2007-10-10 王剑 Ultrasonic atomizer circuit
CN101642741A (en) * 2009-09-01 2010-02-10 深圳和而泰智能控制股份有限公司 Ultrasonic wave atomization circuit and device
CN201823668U (en) * 2010-09-21 2011-05-11 周霆 Ultrasonic atomizing transduction piece
CN202589907U (en) * 2011-11-22 2012-12-12 戴红松 Beauty treatment humidifier
CN202916627U (en) * 2012-10-31 2013-05-01 佛山市顺德区瑞德电子实业有限公司 High energy efficiency supersonic wave atomization energy transducer drive circuit
CN103084295A (en) * 2011-11-04 2013-05-08 周霆 Driving method and driving circuit of ultrasonic atomizer transduction piece
CN203421793U (en) * 2013-05-29 2014-02-05 珠海格力电器股份有限公司 External-excitation type ultrasonic atomization control circuit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2437418Y (en) * 2000-06-09 2001-07-04 左自强 Ultrasonic generator
CN200957394Y (en) * 2006-09-30 2007-10-10 王剑 Ultrasonic atomizer circuit
CN101642741A (en) * 2009-09-01 2010-02-10 深圳和而泰智能控制股份有限公司 Ultrasonic wave atomization circuit and device
CN201823668U (en) * 2010-09-21 2011-05-11 周霆 Ultrasonic atomizing transduction piece
CN103084295A (en) * 2011-11-04 2013-05-08 周霆 Driving method and driving circuit of ultrasonic atomizer transduction piece
CN202589907U (en) * 2011-11-22 2012-12-12 戴红松 Beauty treatment humidifier
CN202916627U (en) * 2012-10-31 2013-05-01 佛山市顺德区瑞德电子实业有限公司 High energy efficiency supersonic wave atomization energy transducer drive circuit
CN203421793U (en) * 2013-05-29 2014-02-05 珠海格力电器股份有限公司 External-excitation type ultrasonic atomization control circuit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105457821A (en) * 2014-09-05 2016-04-06 台达电子工业股份有限公司 Atomizer and control method suitable for same
CN105457821B (en) * 2014-09-05 2017-12-05 台达电子工业股份有限公司 Atomizer and its applicable control method
CN104623770A (en) * 2014-11-21 2015-05-20 无锡科思电子科技有限公司 Self-adaptation atomizing device
CN104635813A (en) * 2014-11-21 2015-05-20 无锡科思电子科技有限公司 Method for adaptively controlling atomization
WO2018153171A1 (en) * 2017-02-24 2018-08-30 湖南中烟工业有限责任公司 Oscillation control circuit of ultrasonic atomization sheet and ultrasonic electronic cigarette
WO2019113789A1 (en) * 2017-12-12 2019-06-20 深圳和而泰数据资源与云技术有限公司 Frequency locking circuit and control method therefor
CN109127257A (en) * 2018-10-29 2019-01-04 无锡中微爱芯电子有限公司 A kind of atomizer dedicated control circuit

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