CN108880203A - A kind of ultrasonic-frequency power supply driving circuit - Google Patents
A kind of ultrasonic-frequency power supply driving circuit Download PDFInfo
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- CN108880203A CN108880203A CN201810855994.3A CN201810855994A CN108880203A CN 108880203 A CN108880203 A CN 108880203A CN 201810855994 A CN201810855994 A CN 201810855994A CN 108880203 A CN108880203 A CN 108880203A
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- power supply
- ultrasonic
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- frequency power
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Abstract
The invention discloses a kind of ultrasonic-frequency power supply driving circuits.The driving circuit includes input side peripheral circuit；IGBT gate isolation drive module, input terminal are connect with the output end of input side peripheral circuit；IGBT gate isolation drive module includes first grid drive coupler and second grid drive coupler, and the model for the chip that the first, second gate driving coupler uses is TLP5754；Outlet side peripheral circuit, input terminal are connect with the output end of IGBT gate isolation drive module, and output end is connect with ultrasonic-frequency power supply, to drive ultrasonic-frequency power supply to work；Boostrap circuit is connect with the voltage end of IGBT gate isolation drive module；Boostrap circuit includes third capacitor C3, the 13rd capacitor C13 and the 5th diode D5.The present invention uses IGBT gate isolation drive module, and optocoupler speed is fast, is suitable for broad-band ultrasonic power supply, driving capability is strong, isolation effect is good；Boostrap circuit is set for the power supply of IGBT gate isolation drive module, save the cost is convenient for design.
Description
Technical field
The present invention relates to technical field of ultrasonic application, more particularly to a kind of ultrasonic-frequency power supply driving circuit.
Background technique
In recent years since digital ultrasound wave technology is fast-developing, ultrasonic wave driving power technology using increasingly extensive.Such as
Ultrasonic wave driving power technology is applied to the works such as ultrasonic cleaning, Ultrasonic Pulverization, ultrasonic welding, sonochemistry, ultrasonic compound process
Industry field.Therefore ultrasonic wave driving power technology also becomes a popular domain of current research.The driving circuit of ultrasonic-frequency power supply
It is important a part in ultrasonic-frequency power supply, affects the performance and efficiency of ultrasonic-frequency power supply, therefore, to the driving circuit of ultrasonic-frequency power supply
Research have very main meaning and value.
Traditional driving circuit is often only applicable to the ultrasonic-frequency power supply of fixed frequency or narrow frequency, and driving capability is general, therefore,
Lack at present and is suitable for broad-band ultrasonic power supply and the strong driving circuit of driving capability.
Summary of the invention
Based on this, it is necessary to provide a kind of suitable for broad-band ultrasonic power supply, the ultrasonic electric that driving capability is strong, isolation effect is good
Source driving circuit.
To achieve the above object, the present invention provides following schemes：
A kind of ultrasonic-frequency power supply driving circuit, including：
Input side peripheral circuit, for generating the pulse signal of two-way phase complements；
IGBT gate isolation drive module, input terminal is connect with the output end of the input side peripheral circuit, for generating
Two-way pulse drive signal；The IGBT gate isolation drive module includes first grid drive coupler and second grid driving
The model of coupler, the chip that the first grid drive coupler and the second grid drive coupler use is
TLP5754；
Outlet side peripheral circuit, input terminal are connect with the output end of the IGBT gate isolation drive module, output end with
Ultrasonic-frequency power supply connection, for exporting the pulse drive signal to the ultrasonic-frequency power supply, to drive the ultrasonic-frequency power supply to work；
Boostrap circuit is connect with the voltage end of the IGBT gate isolation drive module, for for the IGBT grid every
It powers from drive module；The boostrap circuit includes third capacitor C3, the 13rd capacitor C13 and the 5th diode D5；Described
The negative pole end of three capacitor C3, one end of the 13rd capacitor C13 and the 5th diode D5 drive with the first grid
The other end of the voltage end VCC connection of dynamic coupler, the third capacitor C3 and the 13rd capacitor C13 are with described first
The ground terminal GND connection of gate driving coupler, the positive terminal of the 5th diode D5 are connect with network label VCC2_15V；
The model 225K630 of the third capacitor C3.
Optionally, the input side peripheral circuit includes 3rd resistor R3, the 4th resistance R4, the tenth resistance R10 and the tenth
One resistance R11；
One end of the 3rd resistor R3 and the 4th resistance R4 are connect with square wave input end OUTA, the third electricity
The other end of the resistance R3 other end and the 4th resistance R4 are connect with the first input end of the first grid drive coupler；
One end of tenth resistance R10 and eleventh resistor R11 is connect with square wave input end OUTB, the tenth resistance
The other end of the R10 other end and the eleventh resistor R11 connect with the first input end of the second grid drive coupler
It connects.
Optionally, the outlet side peripheral circuit includes the 5th resistance R5, the 8th resistance R8, the 9th resistance R9, the 12nd
Resistance R12, thirteenth resistor R13, the 14th resistance R14, first fuse F1 and third fuse F3；
The input terminal of the 5th resistance R5, the 8th resistance R8 and the 9th resistance R9 with the first grid
The output end of drive coupler connects, grid of the output end with the half-bridge inversion circuit high-end switch pipe in the ultrasonic-frequency power supply
Connection；
Twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 input terminal with the second grid drive
The output end of coupler connects, and output end connects with the grid of the half-bridge inversion circuit low-end switch pipe in the ultrasonic-frequency power supply
It connects；
One end of the first fuse F1 is connect with the ground terminal GND of the first grid drive coupler, the other end
It is connect with the source electrode of half-bridge inversion circuit high-end switch pipe；
One end of the third fuse F3 respectively with the ground terminal GND and network mark of the second grid drive coupler
Number GND2 connection, the other end are connect with the source electrode of half-bridge inversion circuit low-end switch pipe；
The source electrode of half-bridge inversion circuit high-end switch pipe is connect with the drain electrode of half-bridge inversion circuit low-end switch pipe.
Optionally, the boostrap circuit further includes second fuse F2；One end of the second fuse F2 and described the
The positive terminal of five diode D5 connects, and the other end is connect with network label VCC2_15V.
Optionally, the ultrasonic-frequency power supply driving circuit further includes filter module；
The filter module includes the tenth capacitor C10；It is driven respectively with the second grid one end of the tenth capacitor C10
The voltage end VCC of dynamic coupler is connected with network label VCC2_15V, and the other end is connect with network label GND2.
Optionally, the second input terminal of the first grid drive coupler is vacant, the first grid drive coupler
Third input terminal connect with network label GND；Second input terminal of the second grid drive coupler is vacant, and described second
The third input terminal of gate driving coupler is connect with network label GND.
Optionally, the model ESIJ of the 5th diode D5.
Optionally, the model 225K630 of the third capacitor C3.
Optionally, the first grid drive coupler and the built-in high speed photo coupling of the second grid drive coupler,
And the way of output used is totem mode.
Optionally, the frequency range of the ultrasonic-frequency power supply is 20KHZ-2MHZ.
Compared with prior art, the beneficial effects of the invention are as follows：
The invention proposes a kind of ultrasonic-frequency power supply driving circuit, the driving circuit includes input side peripheral circuit；IGBT
Gate isolation drive module, input terminal are connect with the output end of input side peripheral circuit；IGBT gate isolation drive module includes
First grid drive coupler and second grid drive coupler, first grid drive coupler and second grid drive coupler
The model of the chip of use is TLP5754；Outlet side peripheral circuit, the output of input terminal and IGBT gate isolation drive module
End connection, output end is connect with ultrasonic-frequency power supply, to drive ultrasonic-frequency power supply to work；Boostrap circuit drives mould with IGBT gate isolation
The voltage end of block connects；Boostrap circuit includes third capacitor C3, the 13rd capacitor C13 and the 5th diode D5.The driving circuit
IGBT gate isolation drive module including two panels TLP5754 chip is set, optocoupler speed is fast, it is suitable for broad-band ultrasonic power supply,
Driving capability is strong, isolation effect is good, can greatly improve the performance and efficiency of ultrasonic-frequency power supply；Boostrap circuit is set, ensure that
First grid drive coupler and second grid drive coupler are used with power supply all the way, section in IGBT gate isolation drive module
About cost, convenient for design.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of ultrasonic-frequency power supply driving circuit of the embodiment of the present invention；
Fig. 2 is a kind of circuit diagram of ultrasonic-frequency power supply driving circuit of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is a kind of structural schematic diagram of ultrasonic-frequency power supply driving circuit of the embodiment of the present invention；Fig. 2 is the embodiment of the present invention one
The circuit diagram of kind ultrasonic-frequency power supply driving circuit.
Referring to Fig. 1 and Fig. 2, the ultrasonic-frequency power supply driving circuit of embodiment, including：Input side peripheral circuit 1, IGBT grid every
From drive module 2, outlet side peripheral circuit 3, boostrap circuit 4 and filter module 5.
The input side peripheral circuit 1, for generating the pulse signal of two-way phase complements；The IGBT gate isolation is driven
Dynamic model block 2, input terminal is connect with the output end of the input side peripheral circuit 1, for generating two-way pulse drive signal；It is described
IGBT gate isolation drive module 2 include first grid drive coupler 21 and second grid drive coupler 22, described first
The model for the chip that gate driving coupler 21 and the second grid drive coupler 22 use is Toshiba TLP5754；Institute
The built-in high speed photo coupling of first grid drive coupler 21 and the second grid drive coupler 22 is stated, so that driving circuit
Isolation effect is more preferable, and driving capability is stronger, substantially increases the performance and efficiency of ultrasonic-frequency power supply；The first grid driving coupling
Device 21 and the second grid drive coupler 22 have greatly reinforced output pulse using the way of output for being all made of totem
Driving capability；The first grid drive coupler 21 and the second grid drive coupler 22 include six pins,
In the 1st, 2,3 pins as three input terminals, corresponding second input terminal of the 2nd pin is vacant, the corresponding third input of the 3rd pin
End is connect with network label GND, and the 4th pin is as ground terminal GND, output end of the 5th pin as chip, the 6th pin conduct
The voltage end VCC of chip.
In the present embodiment, the input side peripheral circuit 1 include 3rd resistor R3, the 4th resistance R4, the tenth resistance R10 and
Eleventh resistor R11；One end of the 3rd resistor R3 and the 4th resistance R4 are connect with square wave input end OUTA, described
The other end of the 3rd resistor R3 other end and the 4th resistance R4 are defeated with the first of the first grid drive coupler 21
Enter end connection；One end of tenth resistance R10 and eleventh resistor R11 is connect with square wave input end OUTB, the tenth resistance
First input end of the other end of the R10 other end and the eleventh resistor R11 with the second grid drive coupler 22
Connection.
The outlet side peripheral circuit 3, input terminal is connect with the output end of the IGBT gate isolation drive module 2, defeated
Outlet is connect with ultrasonic-frequency power supply, for exporting the pulse drive signal to the ultrasonic-frequency power supply, to drive the ultrasonic electric
Source (wideband) work, the frequency range of the ultrasonic-frequency power supply are 20KHZ-2MHZ；The outlet side peripheral circuit 3 includes the 5th electricity
Hinder R5, the 8th resistance R8, the 9th resistance R9, twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14, the first fusing
Device F1 and third fuse F3；The input terminal of the 5th resistance R5, the 8th resistance R8 and the 9th resistance R9 with
The output end of the first grid drive coupler 21 connects, and output end is high with the half-bridge inversion circuit in the ultrasonic-frequency power supply
The grid of end switch pipe connects；Twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 input terminal with it is described
The output end of second grid drive coupler 22 connects, and output end is opened with the half-bridge inversion circuit low side in the ultrasonic-frequency power supply
Close the grid connection of pipe；The ground terminal GND of one end of the first fuse F1 and the first grid drive coupler 21 connects
It connects, the other end is connect with the source electrode of half-bridge inversion circuit high-end switch pipe；One end of the third fuse F3 respectively with it is described
The ground terminal GND of second grid drive coupler 22 is connected with network label GND2, and the other end is opened with half-bridge inversion circuit low side
Close the source electrode connection of pipe；The drain electrode of the source electrode and half-bridge inversion circuit low-end switch pipe of half-bridge inversion circuit high-end switch pipe connects
It connects.
Boostrap circuit 4 is connect with the voltage end of the IGBT gate isolation drive module 2, for being the IGBT grid
Isolation drive module 2 is powered；The boostrap circuit 4 includes third capacitor C3, the 13rd capacitor C13, the 5th diode D5 and the
Two fuse F2；The negative pole end of the third capacitor C3, one end of the 13rd capacitor C13 and the 5th diode D5 are equal
It is connect with the voltage end VCC of the first grid drive coupler 21, the third capacitor C3 and the 13rd capacitor C13's
The other end is connect with the ground terminal GND of the first grid drive coupler 22, the positive terminal of the 5th diode D5 with
One end of the second fuse F2 connects, and the other end of the second fuse F2 is connect with network label VCC2_15V；Institute
State the model ESIJ of the 5th diode D5.
The filter module 5 includes the tenth capacitor C10；One end of the tenth capacitor C10 respectively with the second grid
The voltage end VCC of drive coupler 22 is connected with network label VCC2_15V, and the other end is connect with network label GND2.
It is below a specific embodiment in practical application.
Power switch tube in half-bridge inversion circuit is driven using above-mentioned ultrasonic-frequency power supply driving circuit.The driving circuit
The square-wave signal range that input side peripheral circuit 1 generates is between -15V to+15V, and frequency is up to 20KHZ or more, due to IGBT
It is integrated with a high speed photo coupling inside chip Toshiba TLP5754 in gate isolation drive module 2, so that the driving circuit application
In frequency in the ultrasonic-frequency power supply of 20KHZ to 2MHZ, the effect of wideband isolation drive is realized.Toshiba's TLP5754 chip uses
Totem mode exports, and output peak point current can reach positive and negative 4.0A, and the stronger effect of driving capability is more preferable.The tool of the driving circuit
Body running situation is as follows：
What input terminal OUTA, OUTB were inputted is the pulse signal of two-way phase complements, the pulse inputted from input terminal OUTA
Signal exports after the current-limiting circuit composed in parallel by 3rd resistor R3 and the 4th resistance R4 to first grid drive coupler
21 No. 1 pin, from its No. 5 pin output after the coupling of first grid drive coupler 21, using by the 5th resistance
Pulse drive signal is exported after the driving resistance that R5, the 8th resistance R8, the 9th resistance R9 are composed in parallel to half-bridge inversion circuit height
No. 4 pin of the grid of end switch pipe, first grid drive coupler 21 is connected to high-end switch after first fuse F1
The source electrode of pipe；The pulse signal inputted from input terminal OUTB, which passes through, to be composed in parallel by the tenth resistance R10 and eleventh resistor R11
It is exported after current-limiting circuit to No. 1 pin of second grid drive coupler 22, after the coupling of second grid drive coupler 22
From its No. 5 pin output, composed in parallel using by twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14
Grid of the pulse drive signal to half-bridge inversion circuit low-end switch pipe, second grid drive coupler 22 are exported after driving resistance
No. 4 pin the source electrode of low-end switch pipe is connected to after third fuse F3；The source electrode and low-end switch of high-end switch pipe
The drain electrode of pipe connects.The two-way exported respectively through first grid drive coupler 21 and second grid drive coupler 22 drives letter
Number it is still the pulse signal of two-way phase complements.
It drives resistance by the way of resistor coupled in parallel in the driving circuit, on the one hand drives resistance in a certain range, drive
Dynamic resistance is smaller, and the steeper driving effect of the drive waveforms of output is better, and efficiency is higher；On the other hand driving resistance can reduce electricity
Parasitic inductance in road reduces bring due to pulse signal and vibrates.
Third capacitor C3 and the 5th diode D5 constitutes circuit in boostrap circuit 4, supplies to first grid drive coupler 21
Electricity and the ripple for filtering out bootstrap voltage mode；13rd capacitor C13 filters out low for the 15V voltage that first grid drive coupler 21 inputs
Frequency ripple；The tenth capacitor C10 in filter module 5 is that the 15V voltage that second grid drive coupler 22 inputs filters out low frequency line
Wave.
Driving circuit setting in the present embodiment includes the IGBT gate isolation drive module of two panels TLP5754 chip, light
Coupling speed is fast, is suitable for broad-band ultrasonic power supply, driving capability is strong, isolation effect is good, can greatly improve the performance of ultrasonic-frequency power supply
And efficiency；Boostrap circuit is set, ensure that first grid drive coupler and second grid in IGBT gate isolation drive module
Drive coupler is used with power supply VCC2_15V all the way, save the cost, convenient for design；Setting filter module, which realizes, filters out low frequency
The effect of ripple.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of ultrasonic-frequency power supply driving circuit, which is characterized in that including：
Input side peripheral circuit, for generating the pulse signal of two-way phase complements；
IGBT gate isolation drive module, input terminal is connect with the output end of the input side peripheral circuit, for generating two-way
Pulse drive signal；The IGBT gate isolation drive module includes first grid drive coupler and second grid driving coupling
The model for the chip that device, the first grid drive coupler and the second grid drive coupler use is TLP5754；
Outlet side peripheral circuit, input terminal are connect with the output end of the IGBT gate isolation drive module, output end and ultrasound
Power supply connection, for exporting the pulse drive signal to the ultrasonic-frequency power supply, to drive the ultrasonic-frequency power supply to work；
Boostrap circuit is connect with the voltage end of the IGBT gate isolation drive module, for driving for the IGBT gate isolation
Dynamic module for power supply；The boostrap circuit includes third capacitor C3, the 13rd capacitor C13 and the 5th diode D5, the third electricity
The negative pole end for holding C3, one end of the 13rd capacitor C13 and the 5th diode D5 drives coupling with the first grid
The other end of the voltage end VCC connection of clutch, the third capacitor C3 and the 13rd capacitor C13 with the first grid
The ground terminal GND connection of drive coupler, the positive terminal of the 5th diode D5 are connect with network label VCC2_15V.
2. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the input side peripheral circuit packet
Include 3rd resistor R3, the 4th resistance R4, the tenth resistance R10 and eleventh resistor R11；
One end of the 3rd resistor R3 and the 4th resistance R4 are connect with square wave input end OUTA, the 3rd resistor R3
The other end of the other end and the 4th resistance R4 are connect with the first input end of the first grid drive coupler；
One end of tenth resistance R10 and eleventh resistor R11 is connect with square wave input end OUTB, and the tenth resistance R10 is another
The other end of one end and the eleventh resistor R11 are connect with the first input end of the second grid drive coupler.
3. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the outlet side peripheral circuit packet
Include the 5th resistance R5, the 8th resistance R8, the 9th resistance R9, twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14,
First fuse F1 and third fuse F3；
The input terminal of the 5th resistance R5, the 8th resistance R8 and the 9th resistance R9 drive with the first grid
The output end of coupler connects, and output end connects with the grid of the half-bridge inversion circuit high-end switch pipe in the ultrasonic-frequency power supply
It connects；
Twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 input terminal with the second grid driving couple
The output end of device connects, and output end is connect with the grid of the half-bridge inversion circuit low-end switch pipe in the ultrasonic-frequency power supply；
One end of the first fuse F1 is connect with the ground terminal GND of the first grid drive coupler, the other end and half
The source electrode of bridge inverter circuit high-end switch pipe connects；
One end of the third fuse F3 respectively with the ground terminal GND and network label of the second grid drive coupler
GND2 connection, the other end are connect with the source electrode of half-bridge inversion circuit low-end switch pipe；
The source electrode of half-bridge inversion circuit high-end switch pipe is connect with the drain electrode of half-bridge inversion circuit low-end switch pipe.
4. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the boostrap circuit further includes
Two fuse F2；One end of the second fuse F2 is connect with the positive terminal of the 5th diode D5, the other end and network
Label VCC2_15V connection.
5. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the ultrasonic-frequency power supply driving circuit
It further include filter module；
The filter module includes the tenth capacitor C10；One end of the tenth capacitor C10 drives coupling with the second grid respectively
The voltage end VCC of clutch is connected with network label VCC2_15V, and the other end is connect with network label GND2.
6. a kind of ultrasonic-frequency power supply driving circuit according to claim 2, which is characterized in that the first grid driving coupling
Second input terminal of device is vacant, and the third input terminal of the first grid drive coupler is connect with network label GND；Described
Second input terminal of two gate driving couplers is vacant, the third input terminal and network label of the second grid drive coupler
GND connection.
7. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the type of the 5th diode D5
Number be ESIJ.
8. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the model of the third capacitor C3
For 225K630.
9. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the first grid driving coupling
Device and the built-in high speed photo coupling of the second grid drive coupler, and the way of output used is totem mode.
10. a kind of ultrasonic-frequency power supply driving circuit according to claim 1, which is characterized in that the frequency of the ultrasonic-frequency power supply
Range is 20KHZ-2MHZ.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855994.3A CN108880203A (en) | 2018-07-31 | 2018-07-31 | A kind of ultrasonic-frequency power supply driving circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855994.3A CN108880203A (en) | 2018-07-31 | 2018-07-31 | A kind of ultrasonic-frequency power supply driving circuit |
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| CN201810855994.3A Pending CN108880203A (en) | 2018-07-31 | 2018-07-31 | A kind of ultrasonic-frequency power supply driving circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008020386A1 (en) * | 2006-08-16 | 2008-02-21 | Nxp B.V. | Power amplifier |
| CN102064729A (en) * | 2010-12-07 | 2011-05-18 | 清华大学 | Half-bridge drive circuit |
| CN204103759U (en) * | 2014-09-18 | 2015-01-14 | 矽力杰半导体技术(杭州)有限公司 | Be applicable to power supply circuits and the bridge circuit of upper switching tube driving in bridge circuit |
| CN106093213A (en) * | 2016-08-04 | 2016-11-09 | 河北工业大学 | Portable electromagnetic ultrasonic pulse excitation apparatus |
| CN107306460A (en) * | 2016-04-25 | 2017-10-31 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating system and the half-bridge isolated drive circuit for it |
-
2018
- 2018-07-31 CN CN201810855994.3A patent/CN108880203A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008020386A1 (en) * | 2006-08-16 | 2008-02-21 | Nxp B.V. | Power amplifier |
| CN102064729A (en) * | 2010-12-07 | 2011-05-18 | 清华大学 | Half-bridge drive circuit |
| CN204103759U (en) * | 2014-09-18 | 2015-01-14 | 矽力杰半导体技术(杭州)有限公司 | Be applicable to power supply circuits and the bridge circuit of upper switching tube driving in bridge circuit |
| CN107306460A (en) * | 2016-04-25 | 2017-10-31 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating system and the half-bridge isolated drive circuit for it |
| CN106093213A (en) * | 2016-08-04 | 2016-11-09 | 河北工业大学 | Portable electromagnetic ultrasonic pulse excitation apparatus |
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Application publication date: 20181123 |