CN207126777U - A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator - Google Patents
A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator Download PDFInfo
- Publication number
- CN207126777U CN207126777U CN201721082826.2U CN201721082826U CN207126777U CN 207126777 U CN207126777 U CN 207126777U CN 201721082826 U CN201721082826 U CN 201721082826U CN 207126777 U CN207126777 U CN 207126777U
- Authority
- CN
- China
- Prior art keywords
- circuit
- pulse signal
- frequency
- pulse
- supersonic generator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Abstract
A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator, including a frequency detuning pulse signal for being used to gather supersonic generator circuit, and this pulse signal is transformed to the off resonance pulse signal sampling circuit of d. c. voltage signal all the way, one basis receives the DC voltage of off resonance pulse signal sampling circuit output and produces the pulse generating circuit of pulse signal all the way, also include a pulse signal by pulse generating circuit output to trigger, the inductance value at PIN1 ends and PIN2 ends of automatically adjusting controls the output frequency of supersonic generator circuit, until the reciprocating stepping digital inductance of regulation is automatically stopped after the output frequency of supersonic generator circuit is consistent with ultrasonic transducer resonance.Compared with prior art, the utility model automatic and accurate adjustment equipment resonant frequency when ultrasonic equipment is run, adjusts, drastically increases the utilization rate of ultrasonic equipment manually without shutting down manual intervention.
Description
Technical field
The tuning circuit of supersonic generator is the utility model is related to, more particularly to one kind is used for power ultrasonic wave-generator
In frequency automatic tuning circuit.
Background technology
In modernization industry, the use of power ultrasonic product is extremely wide, power ultrasonic product typically by：Ultrasound
Wave producer and two big major part of ultrasonic transducer composition.During its work, supersonic generator produces the electricity of upper frequency
For signal by cable transmission into ultrasonic transducer, ultrasonic transducer is converted to this electric signal in the machine with electric signal with frequency
Tool vibrates, and is acted on using this high-frequency vibratory energy in various media and reaches processing and processing intent.
Due in the electronic or electrical component and ultrasonic transducer in supersonic generator circuit in real work
Piezoelectric element, hardware are influenceed by temperature or load change, the signal frequency and ultrasound of supersonic generator output
The resonant frequency of wave transducer can all drift about.Once the signal frequency and ultrasonic transducer of supersonic generator output
Resonant frequency it is inconsistent when may result in off resonance, it is necessary to ultrasonic equipment normal use again can be made by being tuned, no
Ultrasonic transducer or supersonic generator can be then caused to damage.Using the side for manually adjusting inductance in supersonic generator
Frequency resonance is adjusted in method, and its is extremely inefficient.Because ultrasonic equipment is at work, supersonic generator and ultrasonic waves
The temperature or loading condition of energy device may at any time change and cause off resonance, must shut down after off resonance and be adjusted manually again
Normal work could be recovered.So requirement can not be met in the automation equipment for much needing ultrasonic continuous to run.
The content of the invention
To solve above-mentioned technological deficiency, the utility model provides a kind of frequency being used in power ultrasonic wave-generator
Rate automatic tuning circuit, it can effectively enter line frequency regulation automatically.
Technical scheme includes one for gathering supersonic generator used by the utility model solves its technical problem
The frequency detuning pulse signal of circuit, and this pulse signal is transformed to the off resonance pulse signal sampling of d. c. voltage signal all the way
Circuit, a basis receive the DC voltage of off resonance pulse signal sampling circuit output and produce the pulse of pulse signal all the way
Generation circuit, in addition to a pulse signal by pulse generating circuit output trigger, and automatically adjust PIN1 ends and PIN2
The inductance value at end controls the output frequency of supersonic generator circuit, until the output frequency of supersonic generator circuit with it is super
The reciprocating stepping digital inductance of regulation is automatically stopped after acoustic wave transducer resonance is consistent.
As preferred scheme of the present utility model, described off resonance pulse signal sampling circuit includes an impulse sampling and become
Depressor T1, impulse sampling transformer T1 primary Same Name of Ends are connected with diode D1 anodes, and different name end is connected with diode D2 negative electrodes,
Centre cap is connected to the midpoint of half-bridge driven the triode Q1 and Q2 in supersonic generator circuit；Impulse sampling transformer T1
Secondary end is connected with diode D3 anodes, and described D3 negative electrodes connect the "+" input of voltage comparator ic 1, while connect electricity
After appearance C1 and resistance R1 over the ground；Described diode D1 negative electrodes are connected with the V+ in supersonic generator circuit, two described poles
Pipe D2 anodes are connected with the V- in supersonic generator circuit；The "-" input termination benchmark electricity of described voltage comparator ic 1
Potential source VREF, the right+12V connections pull-up resistor R2 of output end, while it is connected to the IN ends of pulse generating circuit；Described pulse hair
The OUT terminal of raw circuit is connected to the triggering end TR of reciprocating stepping digital inductance；Described reciprocating stepping digital inductance
PIN1 ends are connected on the manual tuning inductance 301 in ultrasonic generator circuit, and PIN2 ends are connected in ultrasonic generator circuit
The primary Same Name of Ends of driver transformer T2.
As preferred scheme of the present utility model, the IN ends of described pulse generating circuit input d. c. voltage signal all the way
Afterwards, the pulse voltage signal of frequency all the way and adjustable pulse width can be produced in its OUT terminal.
The utility model impulse sampling transformer T1 is working properly in ultrasonic equipment（Resonance）When, its secondary no pulse letter
Number output（I.e. output is 0 voltage）.
Compared with prior art, the utility model automatic and accurate adjustment equipment resonant frequency when ultrasonic equipment is run,
The manual regulating frequency resonance of manual intervention need not be shut down, drastically increases the utilization rate of ultrasonic equipment.The utility model is complete
Digital regulation is automated, degree of regulation is high, meets ultrasonic continuous stable operation requirement.
Brief description of the drawings
Fig. 1 is electrical block diagram of the present utility model.
Fig. 2 is conventional ultrasound wave producer tuning circuit structural representation.
In figure：1st, pulse generating circuit, 2, reciprocating stepping digital inductance, 3, supersonic generator circuit, 301, manually
Tuning coil, 4, off resonance pulse signal sampling circuit.
Embodiment
The technical scheme in the embodiment of the utility model is clearly and completely described presently in connection with accompanying drawing, this figure is
Simplified schematic diagram, only illustrate basic structure of the present utility model in a schematic way.
According to Fig. 1, the input of off resonance pulse signal sampling circuit 4 is connected with supersonic generator circuit 3, pulse hair
The output end of IN ends connection off resonance pulse signal sampling circuit 4 of raw circuit 1, the OUT terminal of pulse generating circuit 1 and reciprocating stepping
The TR connections of digital inductance 2, the PIN1 ends of reciprocating stepping digital inductance 2 are connected to manual in supersonic generator circuit 1
On tuning coil, PIN2 ends are connected to the Same Name of Ends of the driver transformer T2 primary in supersonic generator circuit 1.Circuit structure
For：Diode D1 negative electrodes are connected to the V+ in supersonic generator circuit 3, and it is primary same that anode is connected to impulse sampling transformer T1
Name end；Diode D2 anodes pole is connected to the V- in supersonic generator circuit 3, at the beginning of negative electrode is connected to impulse sampling transformer T1
Level different name end；Impulse sampling transformer T1 centre cap is connected to the half-bridge driven triode in supersonic generator circuit 3
Q1 and Q2 midpoint；T1 level connection diode D3 anode of impulse sampling transformer, D3 negative electrodes connection voltage comparator ic 1
"+" input, and connect after electric capacity C1 and resistance R1 over the ground；The "-" input termination reference voltage source of voltage comparator ic 1
VREF, the right+12V connections pull-up resistor R2 of output end of voltage comparator ic 1, and it is connected to the IN ends of pulse generating circuit 1；Arteries and veins
The OUT terminal of punching generation circuit 1 is connected to the triggering end TR of reciprocating stepping digital inductance 2.Reciprocating stepping digital inductance 2
PIN1 ends are connected on the manual tuning inductance 301 in ultrasonic generator circuit 3, and PIN2 ends are connected to ultrasonic generator circuit 3
In the primary Same Name of Ends of driver transformer T2.
When ultrasonic equipment normal work（Resonance）When, impulse sampling transformer T1 primary pulse-free signals, once frequency
Off resonance, impulse sampling transformer T1 primary can produce pulse signal all the way, and this pulse signal is through T1 level of impulse sampling transformer
D. c. voltage signal all the way is transformed to by diode D3, electric capacity C1, resistance R1 rectifying and wave-filterings after boosting, this d. c. voltage signal is defeated
Compared with the "+" input entered to voltage comparator ic 1 meets reference voltage source VREF with "-" input, when "+" is defeated
When entering the voltage at end and being higher than the voltage of "-" input, the direct current of the output output amplitude stabilization all the way of voltage comparator ic 1
Pressure signal can export the pulse voltage of frequency-adjustable all the way to the IN ends of pulse generating circuit 1, the OUT terminal of pulse generating circuit 1
Signal, the triggering end TR of reciprocating stepping digital inductance 2 can automatically adjust reciprocating stepping digital electricity after receiving pulse signal
The inductance value at PIN1 ends and the PIN2 ends of sense 2, the speed automatically adjusted by pulse generating circuit 1 OUT output pulse signals
Frequency determines that frequency more top adjustment speed is faster, and frequency more high adjustment speed is slower, after ultrasonic equipment frequency resonance,
Just stop regulation after making impulse sampling transformer T1 primary pulse-free signals, now ultrasonic equipment is in optimum resonant state,
It ensure that ultrasonic equipment can be always maintained at the continuous on-line operation of resonant condition in the case of without manual intervention.
Fig. 2 is conventional ultrasound wave producer tuning circuit structure.
The utility model embodiment is the foregoing is only, and is not so limited the scope of the claims of the present utility model, every profit
The equivalent structure or equivalent flow conversion made with the utility model, or directly or indirectly it is used in other related technology necks
Domain, it is included within scope of patent protection of the present utility model.
Claims (3)
- A kind of 1. frequency automatic tuning circuit being used in power ultrasonic wave-generator, it is characterised in that：It is used to adopt including one Collect supersonic generator circuit（3）Frequency detuning pulse signal, and this pulse signal is transformed to d. c. voltage signal all the way Off resonance pulse signal sampling circuit（4）, a basis receives off resonance pulse signal sampling circuit（4）The DC voltage of output And produce the pulse generating circuit of pulse signal all the way（1）, in addition to one by pulse generating circuit（1）The pulse signal of output Triggering, the inductance value at automatically adjust PIN1 ends and PIN2 ends control supersonic generator circuit（3）Output frequency, directly To supersonic generator circuit（3）Output frequency it is consistent with ultrasonic transducer resonance after be automatically stopped the reciprocating step of regulation Enter digital inductance（2）.
- 2. a kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator according to claim 1, its feature It is：The off resonance pulse signal sampling circuit（4）It is primary including an impulse sampling transformer T1, impulse sampling transformer T1 Same Name of Ends is connected with diode D1 anodes, and different name end is connected with diode D2 negative electrodes, and centre cap is connected to supersonic generator Circuit（3）In half-bridge driven triode Q1 and Q2 midpoint；Impulse sampling transformer T1 secondary ends connect with diode D3 anodes Connect, described D3 negative electrodes connect the "+" input of voltage comparator ic 1, while connect after electric capacity C1 and resistance R1 over the ground；Institute The diode D1 negative electrodes stated and supersonic generator circuit（3）In V+ connections, described diode D2 anodes and ultrasonic wave are sent out Raw device circuit（3）In V- connections；The "-" input termination reference voltage source VREF of described voltage comparator ic 1, output end Right+12V connections pull-up resistor R2, while it is connected to pulse generating circuit（1）IN ends；Described pulse generating circuit（1）'s OUT terminal is connected to reciprocating stepping digital inductance（2）Triggering end TR；Described reciprocating stepping digital inductance（2）PIN1 End is connected to ultrasonic generator circuit（3）In manual tuning inductance 301 on, PIN2 ends are connected to ultrasonic generator circuit（3） In the primary Same Name of Ends of driver transformer T2.
- 3. a kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator according to claim 1, its feature It is：Described pulse generating circuit（1）IN ends input all the way after d. c. voltage signal, can be produced all the way in its OUT terminal The pulse voltage signal of frequency and adjustable pulse width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082826.2U CN207126777U (en) | 2017-08-28 | 2017-08-28 | A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082826.2U CN207126777U (en) | 2017-08-28 | 2017-08-28 | A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207126777U true CN207126777U (en) | 2018-03-23 |
Family
ID=61636233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721082826.2U Active CN207126777U (en) | 2017-08-28 | 2017-08-28 | A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207126777U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801160A (en) * | 2018-08-06 | 2020-02-18 | 佛山市顺德区美的电热电器制造有限公司 | Control method and system of cooking device and cooking device |
| CN110811317A (en) * | 2018-08-07 | 2020-02-21 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and control device and control method thereof |
| CN114653565A (en) * | 2022-03-25 | 2022-06-24 | 广州市弘健生物医用制品科技有限公司 | Ultrasonic wave biomaterial welding machine circuit and self-adaptation resonant circuit |
-
2017
- 2017-08-28 CN CN201721082826.2U patent/CN207126777U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801160A (en) * | 2018-08-06 | 2020-02-18 | 佛山市顺德区美的电热电器制造有限公司 | Control method and system of cooking device and cooking device |
| CN110801160B (en) * | 2018-08-06 | 2021-06-18 | 佛山市顺德区美的电热电器制造有限公司 | Control method and system of cooking device and cooking device |
| CN110811317A (en) * | 2018-08-07 | 2020-02-21 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and control device and control method thereof |
| CN114653565A (en) * | 2022-03-25 | 2022-06-24 | 广州市弘健生物医用制品科技有限公司 | Ultrasonic wave biomaterial welding machine circuit and self-adaptation resonant circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207126777U (en) | A kind of frequency automatic tuning circuit being used in power ultrasonic wave-generator | |
| CN101574757B (en) | Control system of ultrasonic welding machine | |
| CN202356278U (en) | Automatic frequency-sweeping intelligent ultrasonic generator | |
| CN111112679B (en) | Ultrasonic vibration drilling control method and device | |
| CN103567134A (en) | Matching device and matching method for ultrasonic power supply | |
| CN105661649A (en) | Smoke generator and smoke generating method | |
| CN104043577A (en) | Digitized intelligent ultrasonic power source and use method thereof | |
| CN111381529B (en) | Frequency control circuit, method and device and ultrasonic transducer system | |
| CN106961229B (en) | Numerical control ultrasonic driver of self-adaptive washing equipment | |
| CN112350599B (en) | Method and device for quickly tracking ultrasonic resonance frequency | |
| CN108566114A (en) | A kind of ultrasonic transducer excited frequency selection method | |
| CN105717831A (en) | Impedance matching system and method and control system of supersonic power supply | |
| CN203108868U (en) | Broadband ultrasonic generator based on multi-tap cascade inductance | |
| CN202823836U (en) | Driving device for energy converter and debridement machine | |
| CN108649788B (en) | Ultrasonic power supply | |
| WO2019227575A1 (en) | Giant magnetostrictive transducer resonant frequency tracking system and method | |
| CN102364863B (en) | High-frequency power system for wireless power transmission device | |
| Clare et al. | Power conditioning for energy harvesting | |
| CN204241897U (en) | A kind of multifunctional ultrasonic transducer driving circuit | |
| CN111381615A (en) | Frequency control device and method and ultrasonic transducer system | |
| Wei et al. | Design of an automatic impedance matching circuit based on frequency tracking of ultrasonic transducer | |
| CN112532198B (en) | Radio frequency ion source impedance matching method and device | |
| CN203741382U (en) | Novel welding stress eliminating machine | |
| CN203827302U (en) | Ultrasonic power supply for transducer cascade | |
| CN204928362U (en) | High -voltage motor variable frequency control device based on GSM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210929 Address after: 432000 No.2 Hangtian Avenue, Xiaogan City, Hubei Province Patentee after: Hubei ChengZhiming Environmental Protection Technology Co.,Ltd. Address before: 441000 No. A59, Jiahai Industrial Park, high tech Zone, Xiangyang City, Hubei Province Patentee before: HUBEI YUHUI ULTRASONIC TECHNOLOGY Co.,Ltd. |