CN103604189B - Independent-excited ultrasonic atomization controls circuit - Google Patents

Independent-excited ultrasonic atomization controls circuit Download PDF

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Publication number
CN103604189B
CN103604189B CN201310206956.2A CN201310206956A CN103604189B CN 103604189 B CN103604189 B CN 103604189B CN 201310206956 A CN201310206956 A CN 201310206956A CN 103604189 B CN103604189 B CN 103604189B
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China
Prior art keywords
atomization
module
signal
main control
power supply
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CN201310206956.2A
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Chinese (zh)
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CN103604189A (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 present invention discloses a kind of independent-excited ultrasonic atomization control circuit, including:Power module, including atomization PMU and master control PMU;Main control module, resonant frequency signal is generated according to clock frequency signal;Power driver module, switch conversion driving is carried out to resonant frequency signal;Waveform modular converter, carries out waveform conversion by the resonant frequency signal switched after conversion driving, exports sine wave to atomizing piece.Beneficial effect of the present invention is:Humidification efficiency is high, low in energy consumption, easy to operate.The present invention can also include mist amount adjustment module, and there is provided power supply Regulate signal, main control module collection power supply Regulate signal, generation atomization voltage control signal;It is atomized PMU and receives the atomization voltage control signal, atomization power supply is modulated, is the atomization source that waveform modular converter exports different voltages, mist amount step-less adjustment can be achieved.

Description

Independent-excited ultrasonic atomization controls circuit

Technical field

The invention belongs to electronic circuit technology field, more particularly to ultrasonic atomization control circuit.

Background technology

Ultrasonic humidifier used at present, the oscillating circuit of its atomizer is auto-excitation type, namely using general Capacitance three-point type, inductance of three-point oscillating circuit, allow atomizing piece resonance in 1.7MHz frequency.

For example, a kind of ultrasonic ultrasonic delay line memory control of liquid atomization disclosed in Chinese No. 92221224.4 utility models Device, it includes power supply, oscillator and transducer three parts, and oscillator is by two generator triode and electric capacity in parallel, electricity Resistance, inductance and negative thermistor composition Colpitts oscillation circuit.

The defect of prior art is:General self-maintained circuit, the large power triode power consumption used is big, 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.

The content of the invention

It is an object of the present invention to provide a kind of small power consumption, nebulization efficiency height, and the atomization control of resonant-frequency adjustable Circuit processed;The purpose is realized by following technical scheme:

A kind of independent-excited ultrasonic atomization controls circuit, it is characterised in that including:

Power module, including atomization PMU and master control PMU, atomization PMU are ripple Shape modular converter is powered, and master control PMU is master control module for power supply;

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

Power driver module, switch conversion driving is carried out to the resonant frequency signal;

Waveform modular converter, by switch conversion driving after resonant frequency signal carry out waveform conversion, export sine wave to Atomizing piece.

As specific technical scheme, the main control module includes main control chip U2 and system clock circuit, system clock Circuit is the RC oscillating circuits of frequency-adjustable.

As specific technical scheme, the power driver module includes RC filter circuits and metal-oxide-semiconductor Q1, RC filter circuit It is arranged between metal-oxide-semiconductor Q1 G poles and main control chip U2 resonant frequency signal output pin.

As specific technical scheme, the waveform modular converter includes inductance L1, electric capacity C10, electric capacity C11, inductance L2; Inductance L1 one end connects the atomization PMU of power module, and the other end connects electric capacity C10 and inductance L2 node, inductance L2 other ends connection metal-oxide-semiconductor Q1 D poles, electric capacity C10 other end connection atomizing piece Y2 one end, the atomizing piece Y2 other end connects Metal-oxide-semiconductor Q1 S poles are connect, electric capacity C11 is connected in parallel on atomizing piece Y2 two ends.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes current detection module, gathers the work of waveform modular converter Electric current simultaneously inputs main control module;The main control module generates working condition letter according to the operating current of the waveform modular converter of collection Number.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes water level detecting module, gathers water level detecting signal and inputs Main control module;The main control module is according to the water level detecting signal generation working state signal of collection.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes air blower drive module, receives the wind of main control module output Fan drive signal blower fan;The power module also includes fan power supply administrative unit, is that blower fan is powered.

Further aim of the present invention be provide it is a kind of can the defeated fog-supplying amount of step-less adjustment independent-excited ultrasonic atomization control Circuit processed;The purpose is realized by following technical scheme:

Above-mentioned independent-excited ultrasonic atomization controls circuit:Also include mist amount adjustment module there is provided power supply Regulate signal to master Control module;The main control module gathers the power supply Regulate signal, with the master control power ratio compared with and generating atomization voltage control Signal;The atomization PMU receives the atomization voltage control signal, and atomization power supply is modulated, is the ripple Shape modular converter exports the atomization source of different voltages.

As specific technical scheme, the mist amount adjustment module is described by carrying out partial pressure generation to the master control power supply Power supply Regulate signal.

As specific technical scheme, the atomization voltage control signal is pwm signal, the atomization PMU For PWM Switching Power Supplies.

Beneficial effect of the present invention is:Humidification efficiency is high, can be easily reached the A level humidification efficiencies of industry standard, power consumption It is low, eliminate the bulky capacitor or inductance of auto-excitation type;It is easy to operate, mist amount step-less adjustment can be achieved;In addition, also achieving a variety of guarantors Protective function, cost is lower in the humidifier product of middle and high end, and reliability is high.

Brief description of the drawings

Fig. 1 is the composition block diagram for the independent-excited driving atomization control circuit that embodiment is provided.

Fig. 2 is the circuit theory diagrams for the independent-excited driving atomization control circuit that embodiment is provided.

Specific embodiment mode

With reference to shown in Fig. 1 and Fig. 2, the independent-excited ultrasonic atomization control circuit that the present embodiment is provided, including:Power supply mould Block, including atomization PMU and master control PMU, atomization PMU are that waveform modular converter is powered, Master control PMU is master control module for power supply;Main control module, resonant frequency signal is generated according to clock frequency signal, and defeated Go out to power driver module;Power driver module, switch conversion driving is carried out to the resonant frequency signal;Waveform modulus of conversion Block, carries out waveform conversion by the resonant frequency signal switched after conversion driving, exports sine wave to atomizing piece.

Wherein, main control module includes main control chip U2 and system clock circuit, and system clock circuit is the RC of frequency-adjustable Oscillating circuit.Power driver module includes RC filter circuits and metal-oxide-semiconductor Q1, RC filter circuit is arranged on metal-oxide-semiconductor Q1 G poles and master Between the resonant frequency signal output pin for controlling chip U2.Waveform modular converter includes inductance L1, electric capacity C10, electric capacity C11, electricity Feel L2;Inductance L1 one end connects the atomization PMU of power module, and the other end connects electric capacity C10 and inductance L2 section Point, inductance L2 other ends connection metal-oxide-semiconductor Q1 D poles, electric capacity C10 other end connection atomizing piece Y2 one end, atomizing piece Y2's Other end connection metal-oxide-semiconductor Q1 S poles, electric capacity C11 is connected in parallel on atomizing piece Y2 two ends.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes current detection module, gathers the work of waveform modular converter Electric current simultaneously inputs main control module;The main control module generates working condition letter according to the operating current of the waveform modular converter of collection Number.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes water level detecting module, gathers water level detecting signal and inputs Main control module;The main control module is according to the water level detecting signal generation working state signal of collection.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes air blower drive module, receives the wind of main control module output Fan drive signal blower fan;The power module also includes fan power supply administrative unit, is that blower fan is powered.

Above-mentioned independent-excited ultrasonic atomization control circuit also includes mist amount adjustment module there is provided power supply Regulate signal to master control Module;The main control module gathers the power supply Regulate signal, with the master control power ratio compared with and generating atomization voltage control letter Number;The atomization PMU receives the atomization voltage control signal, and atomization power supply is modulated, is the waveform Modular converter exports the atomization source of different voltages.The mist amount adjustment module generates institute by carrying out partial pressure to the master control power supply State power supply Regulate signal.The atomization voltage control signal is pwm signal, and the atomization PMU is that PWM switchs electricity Source.

Claims (8)

1. a kind of independent-excited ultrasonic atomization controls circuit, including:
Power module, including atomization PMU and master control PMU, atomization PMU turn for waveform Module for power supply is changed, master control PMU is master control module for power supply;
Main control module, generates resonant frequency signal, and export to power driver module according to clock frequency signal;
Power driver module, switch conversion driving is carried out to the resonant frequency signal;
Waveform modular converter, waveform conversion is carried out by the resonant frequency signal switched after conversion driving, exports sine wave to atomization Piece;
The power driver module includes RC filter circuits and metal-oxide-semiconductor Q1, RC filter circuit is arranged on metal-oxide-semiconductor Q1 G poles and master Between the resonant frequency signal output pin for controlling chip U2;
Characterized in that, the control circuit also includes mist amount adjustment module there is provided power supply Regulate signal to main control module;It is described Main control module gathers the power supply Regulate signal, with the master control power ratio compared with and generating atomization voltage control signal;The mist Change PMU and receive the atomization voltage control signal, atomization power supply is modulated, is the waveform modular converter Export the atomization source of different voltages.
2. independent-excited ultrasonic atomization according to claim 1 controls circuit, it is characterised in that the main control module includes Main control chip U2 and system clock circuit, system clock circuit are the RC oscillating circuits of frequency-adjustable.
3. independent-excited ultrasonic atomization according to claim 1 controls circuit, it is characterised in that the waveform modular converter Including inductance L1, electric capacity C10, electric capacity C11, inductance L2;Inductance L1 one end connects the atomization PMU of power module, separately One end connects electric capacity C10 and inductance L2 node, and inductance L2 other ends connection metal-oxide-semiconductor Q1 D poles, the electric capacity C10 other end connects Atomizing piece Y2 one end is connect, atomizing piece Y2 other end connection metal-oxide-semiconductor Q1 S poles, electric capacity C11 is connected in parallel on the two of atomizing piece Y2 End.
4. independent-excited ultrasonic atomization according to claim 3 controls circuit, it is characterised in that also including current detecting mould Block, gathers the operating current of waveform modular converter and inputs main control module;The main control module is according to the waveform modulus of conversion of collection The operating current generation working state signal of block.
5. independent-excited ultrasonic atomization according to claim 1 controls circuit, it is characterised in that the control circuit is also wrapped Water level detecting module is included, water level detecting signal is gathered and inputs main control module;The main control module is according to the water level detecting of collection Signal generation working state signal.
6. independent-excited ultrasonic atomization according to claim 1 controls circuit, it is characterised in that the control circuit is also wrapped Air blower drive module is included, the fan driving signal blower fan of main control module output is received;The power module is also It is that blower fan is powered including fan power supply administrative unit.
7. independent-excited ultrasonic atomization according to claim 1 controls circuit, it is characterised in that the mist amount adjustment module The power supply Regulate signal is generated by carrying out partial pressure to the master control power supply.
8. independent-excited ultrasonic atomization according to claim 7 controls circuit, it is characterised in that the atomization voltage control Signal is pwm signal, and the atomization PMU is PWM Switching Power Supplies.
CN201310206956.2A 2013-05-29 2013-05-29 Independent-excited ultrasonic atomization controls circuit CN103604189B (en)

Priority Applications (1)

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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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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CN103604189B true CN103604189B (en) 2017-08-11

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN104623770A (en) * 2014-11-21 2015-05-20 无锡科思电子科技有限公司 Self-adaptation atomizing device
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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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
CN101642741B (en) * 2009-09-01 2011-09-14 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

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