CN103138232A - Ultrasonic nebulizer water shortage protection circuit - Google Patents

Ultrasonic nebulizer water shortage protection circuit Download PDF

Info

Publication number
CN103138232A
CN103138232A CN2011103944961A CN201110394496A CN103138232A CN 103138232 A CN103138232 A CN 103138232A CN 2011103944961 A CN2011103944961 A CN 2011103944961A CN 201110394496 A CN201110394496 A CN 201110394496A CN 103138232 A CN103138232 A CN 103138232A
Authority
CN
China
Prior art keywords
resistance
inductance
oxide
metal
semiconductor
Prior art date
Application number
CN2011103944961A
Other languages
Chinese (zh)
Inventor
周霆
Original Assignee
周霆
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 周霆 filed Critical 周霆
Priority to CN2011103944961A priority Critical patent/CN103138232A/en
Publication of CN103138232A publication Critical patent/CN103138232A/en

Links

Abstract

The invention discloses an ultrasonic nebulizer water shortage protection circuit and belongs to the ultrasonic atomization field. The ultrasonic nebulizer water shortage protection circuit comprises an ultrasonic atomization transduction sheet, an inductor, a metal oxide semiconductor (MOS) tube, a capacitor, a resistor and a diode, wherein one end of the transduction sheet is connected with a power source, the other end of the transduction sheet is connected with the inductor, a positive electrode of the power source is connected with the inductor, a drain electrode of the MOS tube is connected with the inductor, a source electrode of the MOS tube is connected with the resistor, and a rectifying circuit is in parallel connection with the resistor and comprises the capacitor, the resistor and the diode. The ultrasonic nebulizer water shortage protection circuit is simple, practical, high in sensitivity and capable of effectively preventing an ultrasonic nebulizer from working in a non-liquid state.

Description

A kind of ultrasonic ultrasonic delay line memory excessive low water level protection circuit
Technical field
A kind of ultrasonic atomization excessive low water level protection of the present invention circuit belongs to the ultrasonic atomization field, particularly relates to the excessive low water level protection circuit that uses on a kind of ultrasonic ultrasonic delay line memory.
Background technology
Be used for humidification, perfuming, sterilization or ornamental supersonic atomizer in daily life, the ultrasonic wave that the liquid that is contained in liquid container can be produced by supersonic generator is the atomization of liquid, thereby realizes its atomizing functions.Ultrasonic atomizing transduction piece is having under the state of liquid and can work, but can damage ultrasonic atomizing transduction piece when working under the state of no liquid.
Existing water shortage protection method generally adopts the method for magnetic reed tube to respond to the height of water level, and cost is high, complex structure.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art part, and provide a kind of cost low, highly sensitive, can effectively prevent a kind of ultrasonic ultrasonic delay line memory excessive low water level protection circuit that ultrasonic ultrasonic delay line memory is worked under the no liquid state.
the objective of the invention is to reach by following measures, through experimental studies have found that, equal or during near the resonance frequency of ultrasonic atomizing transduction piece in the frequency of the pulse signal voltage that inputs to the metal-oxide-semiconductor grid, voltage signal is through the amplification of metal-oxide-semiconductor and inductance, and the driving voltage waveform that produces a high frequency and high pressure drives ultrasonic atomizing transduction piece work, when circuit is worked under the condition of same voltage and same current value, flow through the pulse peak current of resistance than there being the pulse peak current that flows through resistance under the condition of liquid large during no liquid on ultrasonic atomizing transduction piece, and form the voltage signal of equal proportion on resistance, voltage signal obtains d. c. voltage signal by rectification, when d. c. voltage signal during higher than a certain value, no liquid on ultrasonic atomizing transduction piece, to metal-oxide-semiconductor input low voltage signal, atomizer is quit work.
A kind of ultrasonic ultrasonic delay line memory excessive low water level protection circuit; at the pulse signal that inputs to the metal-oxide-semiconductor grid; voltage signal is through the amplification of metal-oxide-semiconductor and inductance; form voltage signal on resistance; voltage signal obtains d. c. voltage signal by rectification; during higher than a certain value, to metal-oxide-semiconductor input low voltage signal, atomizer is quit work when d. c. voltage signal.
A kind of ultrasonic ultrasonic delay line memory excessive low water level protection circuit comprises by ultrasonic atomizing transduction piece, inductance, metal-oxide-semiconductor, electric capacity, resistance and diode and forming; transduction piece one end is connected with power supply; the transduction piece other end is connected with inductance; positive source is connected with inductance; the drain electrode of the metal-oxide-semiconductor inductance that is connected; the source electrode of the metal-oxide-semiconductor resistance that is connected, shunt rectifier circuit on resistance, rectification circuit comprise that electric capacity, resistance and diode form.
Circuit of the present invention is simple, practical, and is highly sensitive, prevents that effectively ultrasonic ultrasonic delay line memory from working under the no liquid state.
Description of drawings
Accompanying drawing 1 is the circuit diagram of patent of the present invention.
Accompanying drawing 2 is a kind of inductance T1 schematic diagrames of patent of the present invention.
Accompanying drawing 3 is a kind of inductance T1 schematic diagrames of patent of the present invention.
Accompanying drawing 4 is a kind of inductance T1 schematic diagrames of patent of the present invention.
Accompanying drawing 5 is a kind of inductance T1 schematic diagrames of patent of the present invention.
Embodiment
Below in conjunction with drawings and Examples, patent of the present invention is further illustrated.
as shown in Figure 1, a kind of ultrasonic ultrasonic delay line memory excessive low water level protection of the present invention circuit comprises ultrasonic atomizing transduction piece Y1, inductance T1, metal-oxide-semiconductor Q1, capacitor C 1, resistance R 1, resistance R 2 and diode D1 form, transduction piece one end is connected with power supply, 1 pin of inductance T1 is connected with positive source, the transduction piece other end is connected with 2 pin of inductance T1, 3 pin of inductance T1 are connected with the drain electrode of metal-oxide-semiconductor, resistance R 1 one ends are connected with the source electrode of metal-oxide-semiconductor, resistance R 1 other end ground connection, the positive pole of diode is connected with the drain electrode of metal-oxide-semiconductor, the negative pole of diode is connected with an end of capacitor C 1 and resistance R 2, capacitor C 1 is in parallel with resistance R 2, the other end ground connection of capacitor C 1 and resistance R 2.the frequency that control circuit inputs to the pulse signal voltage V1 of metal-oxide-semiconductor grid equals or during near the resonance frequency of ultrasonic atomizing transduction piece, voltage signal V1 drives ultrasonic atomizing transduction piece work through the amplification of metal-oxide-semiconductor and inductance T1 and the driving voltage waveform that produces a high frequency and high pressure, when circuit is worked under the condition of same voltage and same current value, flow through the pulse peak current of resistance R 1 than there being the pulse peak current that flows through resistance R 1 under the condition of liquid large during no liquid on ultrasonic atomizing transduction piece, and form the voltage signal of equal proportion on resistance R 1, this voltage signal is by diode D1 and C1, the rectification of R2 provides the d. c. voltage signal of no liquid V2 on a ultrasonic atomizing transduction piece, when the voltage signal that forms on resistance R 1 during no liquid on ultrasonic atomizing transduction piece by diode D1 and C1, the d. c. voltage signal V2 of the rectification of R2 can be higher than a certain value, when d. c. voltage signal V2 voltage during higher than a certain value, to metal-oxide-semiconductor input low voltage signal, atomizer just quits work.
As shown in Figure 2, inductance T1 is an inductance, and an end is 1 pin of T1, and the other end is 2,3 pin of T1.
As shown in Figure 3, inductance T1 is a mutual inductance, and an end is 1 pin of T1, and the other end is 2 of T1, and the SMIS tap is 2 pin.
As shown in Figure 4, inductance T1 is a mutual inductance, and an end is 1 pin of T1, and the other end is 3 of T1, and the SMIS tap is 3 pin.
As shown in Figure 5, inductance T1 is a mutual inductance transformer, the two ends of an inductance of inductance transformer are respectively 1 pin and 3 pin of inductance T1, two ends one end of an inductance of inductance transformer is 3 pin of inductance T1, another termination flows level always, and the ground that can be power supply can be also the positive pole of power supply.

Claims (3)

1. ultrasonic atomizing transduction piece excessive low water level protection circuit; it is characterized in that at the pulse signal that inputs to the metal-oxide-semiconductor grid; voltage signal is through the amplification of metal-oxide-semiconductor and inductance; form voltage signal on resistance; voltage signal obtains d. c. voltage signal by rectification; when d. c. voltage signal during higher than a certain value, to metal-oxide-semiconductor input low voltage signal.
2. a kind of ultrasonic atomizing transduction piece excessive low water level protection circuit described according to right 1; it is characterized in that being formed by ultrasonic atomizing transduction piece, inductance, metal-oxide-semiconductor, electric capacity, resistance and diode; transduction piece one end is connected with power supply; the transduction piece other end is connected with inductance; the positive source inductance that is connected, the drain electrode of the metal-oxide-semiconductor inductance that is connected, the source electrode of the metal-oxide-semiconductor resistance that is connected; shunt rectifier circuit on resistance, rectification circuit comprise that electric capacity, resistance and diode form.
3. a kind of ultrasonic atomizing transduction piece excessive low water level protection circuit described according to right 1, it is characterized in that comprising ultrasonic atomizing transduction piece Y1, inductance T1, metal-oxide-semiconductor Q1, capacitor C 1, resistance R 1, resistance R 2 and diode D1 form, transduction piece one end is connected with positive source, 1 pin of inductance T1 is connected with positive source, the transduction piece other end is connected with 2 pin of inductance T1, 3 pin of inductance T1 are connected with the drain electrode of metal-oxide-semiconductor, resistance R 1 one ends are connected with the source electrode of metal-oxide-semiconductor, resistance R 1 other end ground connection, the positive pole of diode is connected with the drain electrode of metal-oxide-semiconductor, the negative pole of diode is connected with an end of capacitor C 1 and resistance R 2, capacitor C 1 is in parallel with resistance R 2, the other end ground connection of capacitor C 1 and resistance R 2.
CN2011103944961A 2011-12-02 2011-12-02 Ultrasonic nebulizer water shortage protection circuit CN103138232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103944961A CN103138232A (en) 2011-12-02 2011-12-02 Ultrasonic nebulizer water shortage protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103944961A CN103138232A (en) 2011-12-02 2011-12-02 Ultrasonic nebulizer water shortage protection circuit

Publications (1)

Publication Number Publication Date
CN103138232A true CN103138232A (en) 2013-06-05

Family

ID=48497707

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103944961A CN103138232A (en) 2011-12-02 2011-12-02 Ultrasonic nebulizer water shortage protection circuit

Country Status (1)

Country Link
CN (1) CN103138232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108940704A (en) * 2018-09-12 2018-12-07 河北华旭达医疗器械科技有限公司 Ultrasonic ultrasonic delay line memory lacks liquid protection circuit and scarce liquid control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09261848A (en) * 1996-03-22 1997-10-03 Meidensha Corp Detecting circuit of suspension of cooling water supply of emergency diesel power generating installation
CN101380617A (en) * 2008-10-24 2009-03-11 佛山市南海科日超声电子有限公司 Water shortage protection method of ultrasonic nobulizer
CN101890403A (en) * 2009-05-22 2010-11-24 余明月 Wireless power supply atomizer
CN201823668U (en) * 2010-09-21 2011-05-11 周霆 Ultrasonic atomizing transduction piece
CN201846058U (en) * 2010-09-29 2011-05-25 厦门振泰成科技有限公司 Over-voltage/over-current protecting circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09261848A (en) * 1996-03-22 1997-10-03 Meidensha Corp Detecting circuit of suspension of cooling water supply of emergency diesel power generating installation
CN101380617A (en) * 2008-10-24 2009-03-11 佛山市南海科日超声电子有限公司 Water shortage protection method of ultrasonic nobulizer
CN101890403A (en) * 2009-05-22 2010-11-24 余明月 Wireless power supply atomizer
CN201823668U (en) * 2010-09-21 2011-05-11 周霆 Ultrasonic atomizing transduction piece
CN201846058U (en) * 2010-09-29 2011-05-25 厦门振泰成科技有限公司 Over-voltage/over-current protecting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108940704A (en) * 2018-09-12 2018-12-07 河北华旭达医疗器械科技有限公司 Ultrasonic ultrasonic delay line memory lacks liquid protection circuit and scarce liquid control method

Similar Documents

Publication Publication Date Title
CN103917028B (en) A kind of LED constant current source and control method thereof
CN102999143B (en) Intelligent control circuit of power adapter of notebook computer
CN102664528B (en) A kind of Switching Power Supply
CN103633839A (en) Improved Z-source boosting DC (direct current)-DC converter
CN203761280U (en) Lightning-proof power adapter circuit
CN203933384U (en) A kind of high power factor correction control circuit and device
CN205544520U (en) Automatic energy -conserving charging circuit of pressure regulating
CN103813591B (en) The CRM Flyback LED driver of low output current peak-to-average force ratio
CN102215035A (en) Alternating current mains supply isolation zero crossing checking circuit combined with low-voltage power line carrier wave communication signal coupling
CN201947513U (en) Internal memory driving circuit with power factor correction circuit
CN202916627U (en) High energy efficiency supersonic wave atomization energy transducer drive circuit
CN203313144U (en) Backflow prevention circuit
CN204652713U (en) A kind of LED drive power of no electrolytic capacitor
CN204481681U (en) A kind of interleaved parallel PFC switching power circuit
CN103219893A (en) Switch power supply controller and switch power supply circuit
CN203502448U (en) Simple signal wave generator
CN103533721B (en) Pulse type current LED drive circuit
CN102984859A (en) Light-emitting diode (LED) driving circuit and light-emitting diode (LED) driving device
CN102044981B (en) Switching power supply with capacitor discharge circuit
CN203537225U (en) Novel antisurge constant-current switching power supply
CN202957746U (en) Peak voltage absorption circuit of direct current/alternating current (DC/AC) transducer switch tube of airplane starting system
CN203278782U (en) Drive and protection circuit of high-frequency low-power MOSFET
CN203313043U (en) Negative-voltage drive circuit of high-frequency MOSFET
CN204304789U (en) Flyback power supply
CN203193500U (en) Switching power supply and charging loop thereof

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20130605

C12 Rejection of a patent application after its publication