CN108551163A - Energy-storage travelling wave tube energy is released and recovery circuit, high voltage power supply, power generator and method - Google Patents
Energy-storage travelling wave tube energy is released and recovery circuit, high voltage power supply, power generator and method Download PDFInfo
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- CN108551163A CN108551163A CN201810648322.5A CN201810648322A CN108551163A CN 108551163 A CN108551163 A CN 108551163A CN 201810648322 A CN201810648322 A CN 201810648322A CN 108551163 A CN108551163 A CN 108551163A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 77
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- 239000000446 fuel Substances 0.000 abstract description 3
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- 238000002955 isolation Methods 0.000 description 11
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
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Abstract
The invention discloses a kind of energy-storage travelling wave tube energy to release and recovery circuit, high voltage power supply, power generator and method.The circuit includes energy-storage travelling wave tube, transformer, first switch circuit, second switch circuit and controls the control module that first switch circuit and second switch circuit are opened or closed；Energy-storage travelling wave tube, the primary coil of transformer and first switch circuit constitute energy-storage travelling wave tube energy bleed-off circuit, and energy-storage travelling wave tube, the secondary coil of transformer and second switch circuit constitute energy-storage travelling wave tube energy recovery circuit.In high voltage power supply, energy-storage travelling wave tube is the capacitance for being connected in parallel on high voltage power supply output end.It needs the energy released quickly to release by transformer energy-storage travelling wave tube, while portion of energy being stored, be converted into High voltage output and need the energy utilized, reduced by the energy that fuel factor dissipates, be conducive to the raising of suppression system Wen Sheng, increase reliability.When controlling signal more than current feedback voltage, the first capacitance receives high voltage power supply simultaneously and the energy of recovery circuit offer of releasing, the output voltage rate of climb are greatly improved.
Description
Technical field
The present invention relates to a kind of energy-storage travelling wave tube energy leadage circuits, release and return more particularly to a kind of energy-storage travelling wave tube energy
Receive circuit, high voltage power supply, power generator and method.
Background technology
In most of voltages or current output device, in order to meet stabilization of equipment performance output, usually output end simultaneously
For the one or more capacitances of connection to ground, these capacitances reduce the dynamic response of equipment output while increasing output stability
Speed especially influences more very when output end signal needs follow load variation dynamic to adjust.
Electrosurgical energy generator generates high-frequency high-voltage current, acts on the human body for needing to perform the operation, cut with generation,
The surgical effect of blood coagulation.
Electrosurgical energy generator includes the high voltage power supply, DC voltage and high frequency is low for generating high-voltage dc voltage output
Pressure signal is changed into the power amplifier of high-frequency high-voltage current signal, the procedures electrode being connect with power amplifier, in procedures electrode current supply circuit
Detect the sensor and controller of the real-time impedance of patient body tissue.Electrosurgical energy generator is in single-stage application, energy
Generator exports high-frequency high-voltage current from procedures electrode, while being returned by neutral electrode, forms a current loop.In twin-stage
In, power generator flows out high-frequency high-voltage current from one of electrode, is returned from another electrode, forms an electric current and returns
Road.In single-stage and/or twin-stage application, procedures electrode electric current flows through the different tissues such as muscle, bone, blood vessel, the fat of human body,
And when executing the different tasks such as cutting, blood coagulation in operation, the impedance operator of tissue is different, and controller is according to current loop
Real-time impedance, voltage, electric current and the anticipating power detected is compared, and adjusts the output DC voltage of high voltage power supply in real time,
And then the high-frequency high-voltage current after adjustment is generated by power amplifier, to generate different clinical effectiveness.
In traditional electrosurgical energy generator, there are one larger capacitance, storages for the output end parallel connection of high voltage power supply
Larger energy.In actual operation, real-time impedance of the controller based on operative site tissues adjusts the output electricity of high voltage power supply
Size is pressed, to adjust the high-frequency high-voltage current signal of power amplifier output, to meet the preset target work(for acting on human body
Rate.The shunt capacitance can reduce the speed of high voltage power supply output end voltage response controller control signal, and then influence power amplifier
The high-frequency high-voltage current of output influences clinical effectiveness to the real-time response of different surgical tissues or processing task.
The high voltage power supply output end of existing electrosurgical energy generator carries out electricity by way of a resistance to ground in parallel
Hold releasing for storage energy, the energy of capacitance storage is dissipated into consumption with resistance form of thermal energy, increases equipment Wen Sheng, to resistive element
Power grade requirement is very high, is not easy to obtain, in addition, the energy for capacitance storage does not recycle.
A kind of quickly releasing for high voltage power supply storage energy is disclosed in the United States Patent (USP) of Publication No. US9186201B2
Device and method, it is specific as follows：Controller according between procedures electrode and neutral electrode tissue impedance with currently set
Anticipating power outputs a control signal to high voltage power supply, and carries out error with the feedback voltage after high voltage power supply output voltage partial pressure
Compare, when controlling signal less than feedback voltage, error amplifier A1 exports low-voltage, closes PM, while error amplifier A2
Output HIGH voltage, control switching tube 160 are opened, and depositing on capacitance 134 is formed by inductance 150, switching tube 160 and resistance 162
Energy storage capacity is quickly released；After the output voltage of high voltage power supply drops to the control signal of controller setting, error amplifier
A1 exports certain voltage and controls PM, and error amplifier A2 outputs low-voltage turns off the switch pipe 160, negative with inductance at this time
150 diodes 155 in parallel are carried to release to the energy stored in inductance in a manner of heat.Although the patent can be realized
Quick the releasing of capacitance storage energy, makes output voltage quickly drop to predetermined value at the high voltage power supply of power generator.But
It is the energy storage released in load inductance, is then dissipated in a manner of heat, increase system Wen Sheng；And when control letter
When number being more than current feedback voltage, output voltage raising only relies on high voltage power supply and provides energy, and the rate of climb is limited.
Invention content
The present invention is directed at least solve the technical problems existing in the prior art, a kind of energy storage member is especially innovatively proposed
Part energy is released and recovery circuit, high voltage power supply, power generator and method.
In order to realize the above-mentioned purpose of the present invention, according to the first aspect of the invention, the present invention provides a kind of energy storage
Element energy is released and recovery circuit, including energy-storage travelling wave tube, transformer, first switch circuit, second switch circuit and control
The control module that first switch circuit and second switch circuit are opened or closed；
The energy-storage travelling wave tube, the primary coil of transformer and first switch circuit constitute energy-storage travelling wave tube energy and release back
Road,
The structure of the energy-storage travelling wave tube energy bleed-off circuit is：The first end and transformer of the energy-storage travelling wave tube
Non-same polarity connection, the Same Name of Ends of transformer connect with the first connecting pin of first switch circuit, first switch
The second connection end of circuit is connected to ground, the control terminal connection of releasing of the switch terminals and control module of first switch circuit；
The energy-storage travelling wave tube, the secondary coil of transformer and second switch circuit constitute energy-storage travelling wave tube energy regenerating and return
Road,
The structure of the energy-storage travelling wave tube energy recovery circuit is：The first end of the energy-storage travelling wave tube also with second switch circuit
The connection of the first connecting pin, the Same Name of Ends of the second connection end of second switch circuit and transformer secondary coil connects, transformer
The non-same polarity of secondary coil is connected to ground, and the switch terminals of second switch circuit and the recycling control terminal of control module connect, institute
The second end for stating energy-storage travelling wave tube is connected to ground；
One or more second capacitances, second capacitance are also associated on the Same Name of Ends of the transformer secondary coil
First end and the Same Name of Ends of transformer secondary coil connect, the second end of the second capacitance is connected to ground.
The advantageous effect of above-mentioned technical proposal is：Structure based on transformer and electromagnetic induction principle, use primary coil
Energy bleed-off circuit is constituted, secondary coil constitutes energy recovery circuit, the energy that do not release with form of thermal energy dissipation, by what is released
Energy stores are got up, and energy-storage travelling wave tube is quickly released and be recycled to the storage energy for realizing energy-storage travelling wave tube, energy saving, the circuit structure
The Wen Sheng of system, improves the dynamic response characteristic of system, improves reliability where capable of reducing.By the second capacitance to secondary wire
Energy in circle is stored, and by the energy transfer of primary coil to the second capacitance, can increase the energy storage of energy recovering circuit
Ability is deposited, sufficiently large peak point current can be provided in a short time, enables the voltage rapid increase of storage capacitor.
In the preferred embodiment of the present invention, in the first end of second capacitance and transformer secondary coil
Be serially connected with one or more first diodes between Same Name of Ends, the anode of first diode and transformer secondary coil it is same
The connection of name end, the cathode of the first diode are connect with the first end of the second capacitance.
The advantageous effect of above-mentioned technical proposal is：Increasing by the first diode, the second capacitance pours in down a chimney to secondary coil in order to prevent
Electric current, it is ensured that the one-way flow of energy recovering circuit electric current, secondary coil can only be to the second capacitor chargings.
In the preferred embodiment of the present invention, the of the first end of the energy-storage travelling wave tube and second switch circuit
One or more second diodes, the first end of the cathode and energy-storage travelling wave tube of second diode are serially connected between one connecting pin
Connection, the anode of the second diode are connect with the first connecting pin of second switch circuit.
The advantageous effect of above-mentioned technical proposal is：The power supply reverse irrigated current for preventing energy-storage travelling wave tube or being connect with energy-storage travelling wave tube
To the second capacitance and/or secondary coil, it is ensured that energy recovering circuit can only charge to energy-storage travelling wave tube.
In the preferred embodiment of the present invention, the first switch circuit include the first metal-oxide-semiconductor, described first
The drain electrode of metal-oxide-semiconductor and the Same Name of Ends of transformer connect, and the source electrode of the first metal-oxide-semiconductor is connected to ground, the grid of the first metal-oxide-semiconductor
The control terminal connection of releasing of pole and control module.
The advantageous effect of above-mentioned technical proposal is：Using metal-oxide-semiconductor as the switch element of energy leadage circuit, can bear
High current, dynamic response is fast, easily controllable, good reliability.
In the preferred embodiment of the present invention, further include current-limiting circuit of releasing, the current-limiting circuit of releasing includes
The four-operational amplifier being arranged between the grid of the first metal-oxide-semiconductor and the control terminal of releasing of control module, is serially connected in the first MOS
3rd resistor between the source electrode and ground of pipe；
The positive input of the four-operational amplifier and the control terminal connection of releasing of control module, the 4th operation amplifier
The negative input of device is connect with the source electrode of the first end of 3rd resistor and the first metal-oxide-semiconductor respectively, four-operational amplifier it is defeated
Outlet is connect with the grid of the first metal-oxide-semiconductor.
The advantageous effect of above-mentioned technical proposal is：It prevents the leakage current of the energy leadage circuit of energy-storage travelling wave tube excessive, burns
Ruin circuit.The current-limiting circuit of releasing forms constant current vent discharge by four-operational amplifier, 3rd resistor and the first metal-oxide-semiconductor
Road, different cut-off currents can be arranged in the resistance value by changing 3rd resistor, flexible and convenient to use, be easy to adjust.
In the preferred embodiment of the present invention, the second switch circuit include the second metal-oxide-semiconductor, first resistor,
Second resistance and third metal-oxide-semiconductor,
The first end of the drain electrode of second metal-oxide-semiconductor and energy-storage travelling wave tube connects, the source electrode of the second metal-oxide-semiconductor respectively with transformer
The Same Name of Ends of secondary coil is connected with the first end of first resistor, the grid of the second metal-oxide-semiconductor respectively with the second end of first resistor
It is connected with the first end of second resistance, the second end of the second resistance is connect with the drain electrode of third metal-oxide-semiconductor, third metal-oxide-semiconductor
Source electrode is connected to ground, and the grid of third metal-oxide-semiconductor and the recycling control terminal of control module connect.
The advantageous effect of above-mentioned technical proposal is：Using metal-oxide-semiconductor as the switch element of energy leadage circuit, can bear
High current, dynamic response is fast, easily controllable, good reliability.
According to the second aspect of the invention, the present invention provides a kind of high voltage power supply including any of the above-described circuit, institutes
It is the first capacitance for being connected in parallel on high voltage power supply output end to state energy-storage travelling wave tube；
The control module includes the feedback circuit of the output voltage for detecting high voltage power supply output end, controller,
One operational amplifier, second operational amplifier, third operational amplifier, the first reference power source and the second reference power source；
The input terminal of the feedback circuit is connect with the first end of the first capacitance, the output end of feedback circuit and the first operation
The negative input of amplifier connects, and the positive input of the first operational amplifier and the control signal end of controller connect；Institute
State the output end of the first operational amplifier forward direction with the negative input of second operational amplifier, third operational amplifier respectively
Input terminal is connected with the voltage adjustable side of high voltage power supply；
The positive input of the second operational amplifier is connect with the first reference power source output end, second operational amplifier
Output end connect with the switch terminals of first switch circuit；
The negative input of the third operational amplifier is connect with the second reference power source output end, third operational amplifier
Output end connect with the switch terminals of second switch circuit.
The advantageous effect of above-mentioned technical proposal is：The adjustment response speed for solving high voltage power supply output voltage is limited by it
Output end parallel connection bulky capacitor stores excessive energy problem, and the technical program leads to the output voltage Real-time Feedback of high voltage power supply
It crosses energy-storage travelling wave tube energy to release and recovery circuit, when high voltage power supply needs to reduce voltage output, can quickly release on bulky capacitor
Energy storage, realize reduction of blood pressure in high-speed, and energy stores that will be released；When high voltage power supply needs to increase output voltage, big electricity
Hold while receiving high voltage power supply and the energy for recovery circuit offer of releasing, the output voltage rate of climb are greatly improved.
Simultaneously because the extra energy of leadage circuit is stored, do not dissipated in a manner of heat, the design of the circuit will subtract
Few system Wen Sheng, improves reliability.
In the preferred embodiment of the present invention, further include PWM signal generator, the PWM signal generator
Input terminal is connect with the output end of the first operational amplifier, and the output end of PWM signal generator and the voltage of high voltage power supply are adjusted
End connection.
The advantageous effect of above-mentioned technical proposal is：High voltage power supply output voltage, adjustment essence are adjusted by PWM signal generator
Degree is high.
According to the third aspect of the present invention, the present invention provides a kind of, and the energy comprising any of the above-described high voltage power supply occurs
Device further includes AC/DC converters, power amplifier, one or two electrode, signal generator and is used for detecting electrode current loop
Impedance sensor；
The AC/DC switch inputs are electrically connected with city, and AC/DC converter output ends connect with high voltage power supply input terminal
It connects, high voltage power supply output end is connect with power amplifier high voltage input terminal, and signal generator output end is inputted with power amplifier high-frequency driving signal
The first end of end connection, power amplifier output end and electrode connects, and the second end of the electrode acts on body operation position, senses
The signal input part of device output end and controller connects；
Or the input unit of the target power on human body, the input unit are acted on including the electrode is arranged
Output end connect with the target power input terminal of the controller.
The advantageous effect of above-mentioned technical proposal is：It can be become according to the site of action variation and task of electrode in operation
Change, quickly adjust the high-frequency high-voltage current of power generator output, good to the real-time response for resistance value of performing the operation, system Wen Sheng little faces
Bed significant effect.
According to the fourth aspect of the present invention, it releases the present invention provides a kind of energy and recovery method, including：
The control signal voltage that controller exports is compared with the attenuated feedback voltage of the output voltage of high voltage power supply,
The control signal is the pad value of the target output voltage of high voltage power supply；
If controlling signal voltage is less than feedback voltage, high voltage power supply reduces output voltage, and control module opens high voltage power supply
The energy bleed-off circuit and disconnection energy recovery circuit of first capacitance of output end parallel connection, the energy bleed-off circuit includes first
Capacitance, transformer and the first metal-oxide-semiconductor, the energy of the first capacitance are stored in the primary coil of transformer；
If controlling signal voltage is more than feedback voltage, high voltage power supply increases output voltage and to high voltage power supply output end parallel connection
The first capacitance charge；
Synchronously, control module opens the energy recovery circuit of the first capacitance and closes energy bleed-off circuit, the energy
It includes the first capacitance, transformer secondary coil, the second capacitance and the second metal-oxide-semiconductor to recycle circuit；Energy in transformer
Amount is transferred to secondary coil, passes through the first capacitor charging of energy recovery circuit pair.
The advantageous effect of above-mentioned technology case is：The energy released will be needed quickly to release and store by transformer, then
It is converted into High voltage output and needs the energy utilized, reduced by the energy that fuel factor dissipates, be conducive to suppression system Wen Sheng's
It improves, increases reliability.When controlling signal more than current feedback voltage, the first capacitance receives high voltage power supply and recycling of releasing simultaneously
The energy that circuit provides, the output voltage rate of climb are greatly improved.
Description of the drawings
Fig. 1 is the circuit structure diagram of embodiment of the invention mesohigh power supply；
Fig. 2 is the system block diagram of power generator in the embodiment of the invention；
Fig. 3 is voltage detecting circuit structural schematic diagram in power generator in the embodiment of the invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, can also be the connection inside two elements, it can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
It releases the invention discloses a kind of energy-storage travelling wave tube energy and recovery circuit, in a preferred embodiment, such as Fig. 1
It is shown, circuit include energy-storage travelling wave tube, transformer, first switch circuit, second switch circuit and control first switch circuit and
The control module that second switch circuit is opened or closed；
Energy-storage travelling wave tube, the primary coil of transformer and first switch circuit constitute energy-storage travelling wave tube energy bleed-off circuit,
The structure of energy-storage travelling wave tube energy bleed-off circuit is：The first end of energy-storage travelling wave tube and transformer it is non-of the same name
End connection, the Same Name of Ends of transformer connect with the first connecting pin of first switch circuit, and the of first switch circuit
Two connecting pins are connected to ground, the control terminal connection of releasing of the switch terminals and control module of first switch circuit；
Energy-storage travelling wave tube, the secondary coil of transformer and second switch circuit constitute energy-storage travelling wave tube energy recovery circuit,
The structure of energy-storage travelling wave tube energy recovery circuit is：The first end of energy-storage travelling wave tube also connects with the first of second switch circuit
End connection is connect, the second connection end of second switch circuit and the Same Name of Ends of transformer secondary coil connect, transformer secondary coil
Non-same polarity be connected to ground, the recycling control terminal of the switch terminals of second switch circuit and control module connects, the energy storage member
The second end of part is connected to ground；
One or more second capacitances, the first end of the second capacitance are also associated on the Same Name of Ends of transformer secondary coil
It is connect with the Same Name of Ends of transformer secondary coil, the second end of the second capacitance is connected to ground.
In the present embodiment, energy-storage travelling wave tube can be capacitance, especially bulky capacitor, inductance, piezoelectric element etc..First opens
One of switch elements such as electric-controlled switch, relay, triode, metal-oxide-semiconductor or arbitrary group can be selected in powered-down road, second switch circuit
It closes and realizes.Control module may include microcontroller or MCU processor and logic circuit, can pass through microcontroller or the I/O of MCU
Pin exports high level or low level goes disconnection and the closure of control first switch circuit and second switch circuit.Second capacitance can
The form of multiple capacitance parallel connections may be selected in order to increase the energy storage capacity of the second capacitance in the capacitance for selecting capacitance larger.
In the preferred embodiment of the present invention, in the of the same name of the first end of the second capacitance and transformer secondary coil
One or more first diodes are serially connected between end, the anode of the first diode and the Same Name of Ends of transformer secondary coil connect
It connects, the cathode of the first diode is connect with the first end of the second capacitance.
In the present embodiment, Schottky diode can be selected in the first diode, optional to prevent the first diode breakdown
Select the form of multiple connection consistent Diode series in direction.
In the preferred embodiment of the present invention, first in the first end of energy-storage travelling wave tube and second switch circuit connects
It connecing and is serially connected with one or more second diodes between holding, the cathode of the second diode and the first end of energy-storage travelling wave tube connect, the
The anode of two diodes is connect with the first connecting pin of second switch circuit.
In the present embodiment, to prevent the second diode breakdown, the consistent diode string in multiple connection directions may be selected
The form of connection.
In the preferred embodiment of the present invention, first switch circuit includes the first metal-oxide-semiconductor, the leakage of the first metal-oxide-semiconductor
The Same Name of Ends of pole and transformer connects, and the source electrode of the first metal-oxide-semiconductor is connected to ground, the grid of the first metal-oxide-semiconductor and control
The control terminal connection of releasing of module.
In the present embodiment, the first metal-oxide-semiconductor is NMOS tube.
In the preferred embodiment of the present invention, further include current-limiting circuit of releasing, current-limiting circuit of releasing includes setting
Four-operational amplifier between the grid of the first metal-oxide-semiconductor and the control terminal of releasing of control module, is serially connected in the first metal-oxide-semiconductor
3rd resistor between source electrode and ground；
The positive input of four-operational amplifier and the control terminal connection of releasing of control module, four-operational amplifier
Negative input is connect with the source electrode of the first end of 3rd resistor and the first metal-oxide-semiconductor respectively, the output end of four-operational amplifier
It is connect with the grid of the first metal-oxide-semiconductor.
In the present embodiment, according to empty short principle, the voltage value and four-operational amplifier of the first end of 3rd resistor
The voltage value of positive input is equal, if the voltage value constant of four-operational amplifier positive input, energy-storage travelling wave tube energy is let out
Road is put back to by with constant current drain energy, therefore, by 3rd resistor being arranged different resistance values, may be implemented to releasing
The setting of electric current otherwise limit value.
In the preferred embodiment of the present invention, second switch circuit includes the second metal-oxide-semiconductor, first resistor, second
Resistance and third metal-oxide-semiconductor,
The first end of the drain electrode of second metal-oxide-semiconductor and energy-storage travelling wave tube connects, the source electrode of the second metal-oxide-semiconductor respectively with transformer secondary output
The Same Name of Ends of coil is connected with the first end of first resistor, the grid of the second metal-oxide-semiconductor respectively with the second end of first resistor and
The first end of two resistance connects, and the second end of second resistance is connect with the drain electrode of third metal-oxide-semiconductor, source electrode and the ground of third metal-oxide-semiconductor
Connection, the grid of third metal-oxide-semiconductor and the recycling control terminal of control module connect.
In the present embodiment, the second metal-oxide-semiconductor can be PMOS tube, and third metal-oxide-semiconductor can be NMOS tube, when returning for control module
When receiving control terminal output high level, the conducting of third metal-oxide-semiconductor, second end and the ground of second resistance are connected, the conducting of the second metal-oxide-semiconductor, the
Two switching circuits are closed, and the energy recovering circuit of energy-storage travelling wave tube is connected.
The invention discloses a kind of high voltage power supplies, as shown in Figure 1, energy-storage travelling wave tube is be connected in parallel on high voltage power supply output end
One capacitance；
Control module includes the feedback circuit, controller, the first fortune of the output voltage for detecting high voltage power supply output end
Calculate amplifier, second operational amplifier, third operational amplifier, the first reference power source and the second reference power source；
The input terminal of feedback circuit is connect with the first end of the first capacitance, the output end of feedback circuit and the first operation amplifier
The negative input of device connects, and the positive input of the first operational amplifier and the control signal end of controller connect；First fortune
Calculate amplifier output end respectively with the negative input of second operational amplifier, third operational amplifier positive input and
The voltage adjustable side of high voltage power supply connects；
The positive input of second operational amplifier is connect with the first reference power source output end, second operational amplifier it is defeated
Outlet is connect with the switch terminals of first switch circuit；
The negative input of third operational amplifier is connect with the second reference power source output end, third operational amplifier it is defeated
Outlet is connect with the switch terminals of second switch circuit.
Preferably, further include PWM signal generator, the input terminal of PWM signal generator is defeated with the first operational amplifier
Outlet connects, and the output end of PWM signal generator and the voltage adjustable side of high voltage power supply connect.
In the present embodiment, the first reference power source is low voltage power supply, and output voltage is less than 0.5V, the second reference power source
For high voltage power supply, output voltage is 4.0V or so, and corresponding voltage reference chip can be selected or voltage reference chip adds
Precision resistance potential-divider network obtains, and REF2940AIDBZT can be selected in 4.0V voltage reference chips, and the first reference power source can pass through
The additional precision resistance potential-divider network of 1.2V reference power supply chip LM385D-1-2 output voltages obtains, specific circuit structure ability
Field technique personnel can obtain from the technical manual of power supply chip.
In the present embodiment, feedback circuit is used to carry out attenuated feedback to the voltage of high voltage power supply output end, can pass through
Series resistance potential-divider network realizes attenuated feedback, it is preferred that the resistance value in potential-divider network should select larger resistance value, such as M Ω
The high-tension resistive of grade, operating voltage are 0~350V to reduce energy loss.Controller be microcontroller or MCU chip and its
Peripheral circuit or FPGA, model can be XC3S100E-4VQG100C.The control signal end output voltage values of controller are
The pad value of high voltage power supply target output voltage value, and attenuation multiple is consistent with the attenuation multiple of feedback circuit.High voltage power supply can
For full-bridge switching power supply, in the present embodiment, if without PWM signal generator, high voltage power supply may include phase-shifting full-bridge DC/DC
The full bridge control chip of phase shift of the MOS power tube on or off of conversion circuit and control phase-shifting full-bridge DC/DC conversion circuits, phase
It can be UCC3895, UCC28950 etc. to move full bridge control chip, and specific circuit structure can refer to prior art Publication No.
The Chinese patent of CN103204082B, the first operational amplifier export analog control signal to the full bridge control chip of phase shift, phase shift
Full bridge control chip generates corresponding pwm control signal to realize to phase-shifting full-bridge DC/DC after receiving the analog control signal
The switch control of power MOS pipe in conversion circuit, to make the desired DC voltage value of generation that high voltage power supply continues.In this reality
It applies in mode, since simulation control itself is more vulnerable to interfere relative to digital controlled signal, the full bridge control chip of phase shift generates
Pwm signal frequency upgrading it is limited, have regular hour delay, be difficult to realize higher dynamic response, easily cause due to group
The power deviation that impedance variations bring bigger is knitted, more preferably organizational effect may be cannot achieve.Therefore, pwm signal is added
Generator realizes different output voltages by the duty ratio of modulating pulse width.
In the present embodiment, the first operational amplifier be error amplifier, the error amplifier open loop DC gain compared with
Greatly, similar with comparator operation principle, main difference is that the error amplifier mainly utilizes in-phase input end and reverse phase
The empty short principle of input terminal, passes through the closed-loop system constituted with PWM signal generator.The error amplifier is operated in amplification shape
State, that is, stablize when, in-phase end is identical as reversed terminal voltage, since its turn off gain is larger, output voltage be located at 0.8V~
Between 3.3V, concrete numerical value determines the duty ratio of PWM controller output；When the error amplifier in-phase end and reverse phase terminal voltage
When difference is larger, the error amplifier is equal to a comparator at this time, and output valve is generally less than 0.5V or is more than 4.0V, this
When, subsequent energy bleed-off circuit or energy recovery circuit work, storage capacitor electric discharge or charging will be triggered.
In the present embodiment, the operation principle of high voltage power supply is：
The output voltage (control signal) of the control signal end of controller is with the DC voltage of high voltage power supply output end through anti-
Voltage (abbreviation feedback voltage) after current feed circuit decaying is compared：
When controlling signal and feedback voltage is not much different：
First operational amplifier is operated in stable state, and output voltage is often positioned between 0.8V~3.3V, the first operation
The size of the output voltage of amplifier determines the output duty cycle of PWM signal generator, and then adjusts the output of high voltage power supply
Voltage swing, when the output voltage of high voltage power supply is slightly above desired value, the output voltage of backfeed loop is defeated slightly larger than controller
Go out and control signal voltage, their difference is carried out error amplification, the first op-amp output voltage by the first operational amplifier
It reduces, and then leads to the reduction of PWM output duty cycles, cause output voltage to decline, conversely, when output voltage is decreased slightly as low, pass through
Above-mentioned adjustment, makes output voltage rise, and is adjusted by above-mentioned closed loop, output voltage is finally made to be maintained at steady state value (value etc.
The voltage value that control signal is exported in controller is multiplied by feedback attenuation multiple).
When controlling signal less than feedback voltage：
The output voltage VO after the amplification of the first operational amplifier (i.e. error amplifier A1) error, VO voltages are less than the first ginseng
When examining voltage VL (the general value 0.5V of VL) of power supply output, the duty ratio of PWM signal generator output signal is 0, i.e. PWM controls
Device output processed is closed, while VO and VL is put by carrying out error with second operational amplifier (i.e. error amplifier A2)
Greatly, the voltage more than 0 is exported, and the follower circuit by being made of four-operational amplifier A4, opens the first metal-oxide-semiconductor
Q1, at this point, the storage energy of the first capacitance C1 of high voltage power supply output end passes through transformer, the first metal-oxide-semiconductor Q1,3rd resistor R3
Energy bleed-off circuit is constituted, energy extra on the first capacitance C1 is quickly released.Synchronously, third operational amplifier A 3 exports
End exports low level to the grid of third metal-oxide-semiconductor Q3, and third metal-oxide-semiconductor Q3 ends, the second metal-oxide-semiconductor Q2 cut-offs, the first capacitance C1's
Energy recovery circuit disconnects, transformer secondary coil cut-off.The primary coil of transformer is equivalent to an inductance, leakage current stream
When crossing primary winding, energy is stored by the primary coil of transformer, in Fig. 1,3rd resistor R3 and the first MOS
Pipe Q1, four-operational amplifier A4 constitute constant-current source circuit, and the maximum current to flowing through transformer limits, and prevent
Only circuit damages.
When controlling signal more than feedback voltage：
The output voltage VO after the first operational amplifier (i.e. error amplifier A1) amplification, VO voltages are higher than second with reference to electricity
When source output voltage VH (the general value 4.0V of VH), the largest duty cycle of PWM signal generator output signal, i.e. high voltage power supply are defeated
Outlet is charged with the first capacitance of maximum electric current pair C1, so that the first capacitance C1 voltages quickly rise.Meanwhile VO and
One reference power source output voltage VL carries out error amplification by second operational amplifier (i.e. error amplifier A2), and output is one small
In the voltage of 0V, four-operational amplifier A4 exports low level control the second metal-oxide-semiconductor Q2 stoppings, at this time the primary of transformer
Coil will generate inverse electromotive force, and inverse electromotive force is transmitted to secondary coil by iron core, and passes through transformer secondary coil,
One diode D1 is to the second capacitance C2 chargings, i.e., by the energy transfer being stored in transformer to the second capacitance C2
On, while VO and VH carries out error amplification by third operational amplifier (i.e. error amplifier A3), third operational amplifier is defeated
Go out high level control third metal-oxide-semiconductor Q3 to open, and then the second metal-oxide-semiconductor Q2 is opened by first resistor R1, second resistance R2, at this time
The energy being stored on the second capacitance C2 is charged by the second metal-oxide-semiconductor Q2, the second diode D2 to the first capacitance C1, the first capacitance
C1 is charged by high voltage power supply and energy recovering circuit simultaneously, and the rate of climb is greatly improved.
The invention discloses a kind of power generators, in a preferred embodiment, as shown in Fig. 2, the energy occurs
Device includes above-mentioned high voltage power supply, further include AC/DC converters, power amplifier, one or two electrode, signal generator and is used for
The sensor of the impedance of detecting electrode current loop；
AC/DC switch inputs are electrically connected with city, and AC/DC converter output ends are connect with high voltage power supply input terminal, high
Piezoelectricity source output terminal is connect with power amplifier high voltage input terminal, and signal generator output end connects with power amplifier high-frequency driving signal input terminal
It connects, the first end connection of power amplifier output end and electrode, the second end of electrode acts on body operation position, sensor output
It is connect with the signal input part of controller；
Or the input unit of the target power on human body, the output end of input unit are acted on including setting electrode
It is connect with the target power input terminal of controller.
In the present embodiment, the effect of power amplifier is that high frequency low voltage signal is converted into high-voltage high-frequency signal, by work(
High voltage input terminal input high-voltage dc voltage is put for powering, the size of the output DC voltage determines that power amplifier output high frequency is high
Press the amplitude size of signal.It is used as drive signal in power amplifier high-frequency driving signal input terminal input high frequency low voltage signal, low pressure is high
Frequency signal is digital signal, can be amplitude is 5V or the Transistor-Transistor Logic level of 3.3V, and frequency is hundreds of kHz magnitudes.Low-voltage high-frequency is believed
It number is generated by signal generator, signal generator can be selected special signal and chip, such as MAX038, it is possible to use controller occurs
Internal signal generating unit generates, and the FPGA of model XC3S100E-4VQG100C can be selected in controller.
In the present embodiment, power amplifier is that high frequency low voltage signal is converted into high-voltage high-frequency signal, the input packet of power amplifier
Low-voltage high-frequency drive signal and the high-voltage dc voltage of power supply are included, the size of DC voltage directly determines that power amplifier output high frequency is high
The size of signal, the output signal of signal generator is pressed to determine that the frequency of high-frequency high-voltage signal, power amplifier can be selected
APT8030JN, those skilled in the art can refer to databook and build circuit, and details are not described herein again.
In the present embodiment, which is mainly used for electrosurgery, can be single electrode or bipolar electrode.
AC/DC converters are used to alternating current being converted to DC voltage, including rectifier circuit.High voltage power supply exports AC/DC converters
DC voltage be converted to the adjustable high-voltage dc voltage of voltage swing, voltage swing is set by controller, the direct current of output
Voltage exports the high frequency voltage directly proportional to DC voltage after power amplifier, which is loaded into Surgery by procedures electrode
Position, acts on tissue, then returns to power amplifier through refurn electrode, forms high-frequency current circuit.Sensor includes voltage sensor
And current sensor, it is respectively used to the real-time voltage in detecting electrode current loop and real-time current.Due to human body different tissues
Impedance it is different, impedance when electrode executes different task also differs, and such as stops blooding and cutting impedance is different.Sensor is to effect
It is sampled in the high frequency voltage and electric current of tissue, controller calculates real-time impedance, and controller is according to the impedance currently calculated
The electrical parameters such as value and the preset target power value of doctor, calculate the target voltage values that should be exported in high voltage power supply output end, and
Control signal voltage value of the target voltage values after attenuation multiple identical with feedback circuit is calculated, and signal voltage will be controlled
Value is exported by internal D/A ALT-CH alternate channels to the first operational amplifier positive input, the output voltage values with feedback circuit
Error amplification is done, and using the output voltage of error amplification output valve control high voltage power supply, and then controls load in operative site
High frequency voltage electric current, adjusted by the closed loop repeatedly of above step, so that the high frequency voltage electric current of output is reached expection and set
It is fixed, meet clinical effectiveness.
In the present embodiment, sensor includes at least the detection current sensor of power generator output end current and defeated
Going out the voltage detecting circuit of terminal voltage, Hall current sensor or current transformer may be selected in current sensor, as shown in figure 3,
Voltage detecting circuit includes being connected in parallel on the capacitive divider network of high-frequency high-voltage signal test lead and being connected with capacitive divider network
Analog isolation device；
Capacitive divider network includes at least one first kind capacitance being serially connected in any order and at least one
Two class capacitances, the pressure voltage of first kind capacitance are higher than the pressure voltage of the second class capacitance, and the capacitance of first kind capacitance is less than the second class
The ratio of the pressure voltage of the capacitance of capacitance, the pressure voltage of first kind capacitance and the second class capacitance is not less than the capacitance of the second class capacitance
With the ratio of the capacitance of first kind capacitance；
Two input terminals of analog isolation device are attempted by a second class capacitance both ends or more than one second class capacitance
The both ends of the concatenation network of composition.
In the present embodiment, high-frequency high-voltage signal test lead can be the output end of electrosurgical energy generator, and high frequency is high
The frequency of pressure voltage signal is generally hundreds of KHz, and voltage peak is KV magnitudes, such as 5KV, when capacitance partial pressure can avoid electric resistance partial pressure
The non-linear effects that resistance-inductance characteristic is brought；Capacitive divider network one end connects an electrode, and the other end connects another electricity
Pole (electrosurgical energy generator is bipolar application) or neutral electrode (electrosurgical energy generator is monopole application).
Above-mentioned technical proposal has the beneficial effect that：The inductance characteristic of capacitance can be ignored, and pass through capacitive divider network
The voltage of acquisition has good linear corresponding relation with the voltage of high-frequency and high-voltage test lead, improves voltage tester precision；It is logical
High-frequency and high-voltage test lead and voltage detecting circuit output end can be effectively isolated by crossing analog isolation device, avoid voltage detecting circuit
The low frequency signal reverse coupled that other signal processing circuits of output end connection generate enters electrode, and safety is improved.Pass through
The series connection of multiple first kind capacitances or the series connection of multiple second class capacitances can be reduced to the resistance to of first kind capacitance and the second class capacitance
The requirement of pressure value, and then reduce cost.
In the present embodiment, according to principle of capacitive divider, first kind capacitance needs to bear most or all of high frequency
The high pressure pressure drop at Hi-pot test end, therefore, capacitance should be less than or much smaller than the second class capacitance capacitance, it is preferred that first
The pressure voltage of class capacitance is above the voltage peak of high-frequency and high-voltage test lead.When first kind capacitance is multiple series connection and/or second
When class capacitance is multiple series connection, the pressure voltage of any one first kind capacitance is higher than the pressure voltage of any one the second class capacitance,
The capacitance of any one first kind capacitance is less than the capacitance of any one the second class capacitance, the pressure resistance of any one first kind capacitance
The ratio of value and the pressure voltage of any one the second class capacitance is not less than the series equivalent capacitance of all second class capacitances and owns
The ratio of the series equivalent capacitance of first kind capacitance.Because the pressure voltage of capacitance is larger to the cost impact of capacitance, therefore, use
Multiple concatenated modes of capacitance can reduce cost.
In the present embodiment, existing analog isolation circuit structure can be selected in analog isolation device, and isolation such as can be selected and put
Either linear optical coupling device or isolating transformer, particular circuit configurations those skilled in the art can be according to the devices chosen for big device
The databook of part is built, and is known technology, details are not described herein.
Preferably, analog isolation device include isolating transformer T and be connected to isolating transformer T secondary coils Same Name of Ends and/
Or the ground resistance of non-same polarity；The primary coil both ends of isolating transformer T are attempted by a second class capacitance both ends or one
The both ends of the concatenation network of a above second class capacitance composition.
Above-mentioned technical proposal has the beneficial effect that：Disclose a kind of particular circuit configurations of analog isolation device, the circuit knot
Structure is easy to use, simple in structure, cost-effective.
In the present embodiment, in order to give isolating transformer T secondary coils provide energy bleed-off circuit and extract its both ends
Voltage can be connected to ground in secondary coil Same Name of Ends one ground resistance R5 of series connection, the ground resistance R5 other ends, and/or secondary
The ground resistance R4 of grade coil non-same polarity, the ground resistance R4 other ends are connected to ground.Low pressure isolation can be selected in isolating transformer
(low pressure refers to voltage-to-ground to transformer in 1000V and following.) preferably, primary and secondary turn ratio selection 1:1, or close ratio
Example realizes the isolation output of low pressure electric signal, does not have to worry that controller end low frequency signal carries out reverse coupled to application of electrode end
The problem of, safety is improved.
In the present embodiment, it is preferred that capacitive divider network includes third capacitance C3, the 4th capacitance C4 and the 5th capacitance
C5, third capacitance C3 and the 5th capacitance C5 are first kind capacitance, and the 4th capacitance C4 is the second class capacitance；
Third capacitance C3 first ends are connect with high-frequency high-voltage signal test lead, third capacitance C3 second ends and the 4th capacitance C4
First end connects, and the 4th capacitance C4 second ends are connect with the 5th capacitance C5 first ends, the 5th capacitance C5 second ends and high-frequency and high-voltage
The common end of signal connects.The common end of high-frequency high-voltage signal is in neutral electrode or bipolar electrode application in single electric grade application
Another electrode in addition to electrode where high-frequency high-voltage signal test lead.
In the present embodiment, further include signal conditioning circuit；Signal conditioning circuit include multiplier, low-pass filter,
First A/D converter；
The input terminal of multiplier is connect with the output end of analog isolation device, the output end of multiplier and low-pass filter it is defeated
Enter end connection, the output end of low-pass filter is connect with the input terminal of the first A/D converter, the output end of the first A/D converter
For the output end of voltage detecting circuit.
In the present embodiment, analog multiplier chip AD734 and its peripheral circuit composition may be selected in multiplier, specifically
Circuit structure those skilled in the art can be obtained by chip handbook.RC low-pass filters or low pass can be selected in low-pass filter
Filter chip builds completion, and those skilled in the art can obtain according to the prior art.First A/D converter can be selected 12 or
The high-speed a/d acquisition chip of higher acquisition precision, if MCP3201 chips and its peripheral circuit form, particular circuit configurations sheet
Field technology personnel can be obtained by chip handbook.
In the present embodiment, it is preferred that first kind capacitance is high-voltage capacitance, and the pressure voltage of the second class capacitance is not more than
100V；
And/or second the capacitance ratio of class capacitance and first kind capacitance be not less than 100:1.
In the present embodiment, high-voltage capacitance, the generally referred to as capacitance of the capacitance of 1kv or more or 10kv or more.The
The capacitance of two class capacitances is much larger than the capacitance of high-voltage capacitance, if the ratio between its capacitance is 500:1 or even bigger, such as first kind capacitance
The high-voltage capacitance that a capacitance is 10pF can be selected, it is 50V's that the pressure voltage that a capacitance is 5.6nF, which can be selected, in the second class capacitance
Capacitance；By way of capacitance partial pressure, the high-frequency high-voltage signal that can will be up to 5kV is reduced to 10V hereinafter, again by low pressure transformation
Device is isolated, which is sent in a manner of difference or single ended input in analog multiplier, after analog multiplier multiplication process,
It is converted into DC voltage after the low-pass filtered device of output signal, then the A/D converter through high resolution is converted into digital signal
After be sent into controller, controller carries out evolution processing, and the intrinsic standoff ratio designed according to front end capacitance partial pressure, calculates energy
The actually active threshold voltage of device output.
It releases the invention discloses a kind of energy and recovery method, including：
The control signal voltage that controller exports is compared with the attenuated feedback voltage of the output voltage of high voltage power supply,
Control the pad value for the target output voltage that signal is high voltage power supply；
If controlling signal voltage is less than feedback voltage, high voltage power supply reduces output voltage, and control module opens high voltage power supply
The energy bleed-off circuit and disconnection energy recovery circuit of first capacitance of output end parallel connection, energy bleed-off circuit include the first electricity
Hold, transformer and the first metal-oxide-semiconductor, the energy of the first capacitance are stored in the primary coil of transformer；
If controlling signal voltage is more than feedback voltage, high voltage power supply increases output voltage and to high voltage power supply output end parallel connection
The first capacitance charge；
Synchronously, control module opens the energy recovery circuit of the first capacitance and closes energy bleed-off circuit, energy regenerating
Circuit includes the first capacitance, transformer secondary coil, the second capacitance and the second metal-oxide-semiconductor；Energy in transformer turns
Secondary coil is moved to, the first capacitor charging of energy recovery circuit pair is passed through.
The energy released will be needed quickly to release and store by transformer, and be then converted into what High voltage output needs utilized
Energy is reduced by the energy that fuel factor dissipates, is conducive to the raising of suppression system Wen Sheng, increases reliability.Control signal
When more than current feedback voltage, the first capacitance receives high voltage power supply and the energy of recovery circuit offer of releasing simultaneously, output electricity
The pressure rate of climb is greatly improved.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of energy-storage travelling wave tube energy is released and recovery circuit, which is characterized in that including energy-storage travelling wave tube, transformer, first switch
The control module that circuit, second switch circuit and control first switch circuit and second switch circuit are opened or closed；
The energy-storage travelling wave tube, the primary coil of transformer and first switch circuit constitute energy-storage travelling wave tube energy bleed-off circuit,
The structure of the energy-storage travelling wave tube energy bleed-off circuit is：The first end of the energy-storage travelling wave tube and transformer it is non-
Same Name of Ends connects, and the Same Name of Ends of transformer is connect with the first connecting pin of first switch circuit, first switch circuit
Second connection end be connected to ground, the control terminal connection of releasing of the switch terminals of first switch circuit and control module；
The energy-storage travelling wave tube, the secondary coil of transformer and second switch circuit constitute energy-storage travelling wave tube energy recovery circuit,
The structure of the energy-storage travelling wave tube energy recovery circuit is：The first end of the energy-storage travelling wave tube also with second switch circuit
One connecting pin connects, and the second connection end of second switch circuit and the Same Name of Ends of transformer secondary coil connect, transformer secondary output
The non-same polarity of coil is connected to ground, and the switch terminals of second switch circuit and the recycling control terminal of control module connect, the storage
The second end of energy element is connected to ground；
It is also associated with one or more second capacitances on the Same Name of Ends of the transformer secondary coil, the of second capacitance
The Same Name of Ends of one end and transformer secondary coil connects, and the second end of the second capacitance is connected to ground.
2. energy-storage travelling wave tube energy as described in claim 1 is released and recovery circuit, which is characterized in that in second capacitance
One or more first diodes are serially connected between first end and the Same Name of Ends of transformer secondary coil, first diode
The Same Name of Ends of anode and transformer secondary coil connects, and the cathode of the first diode is connect with the first end of the second capacitance.
3. energy-storage travelling wave tube energy as described in claim 1 is released and recovery circuit, which is characterized in that in the energy-storage travelling wave tube
One or more second diodes, second diode are serially connected between first end and the first connecting pin of second switch circuit
Cathode and the first end of energy-storage travelling wave tube connect, the anode of the second diode connect with the first connecting pin of second switch circuit.
4. energy-storage travelling wave tube energy as described in claim 1 is released and recovery circuit, which is characterized in that the first switch circuit
Including the first metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor and the Same Name of Ends of transformer connect, the source electrode of the first metal-oxide-semiconductor
It is connected to ground, the grid of the first metal-oxide-semiconductor and the control terminal connection of releasing of control module.
5. energy-storage travelling wave tube energy as claimed in claim 4 is released and recovery circuit, which is characterized in that further include current limliting electricity of releasing
Road, the current-limiting circuit of releasing include the 4th be arranged between the grid of the first metal-oxide-semiconductor and the control terminal of releasing of control module
Operational amplifier, the 3rd resistor being serially connected between the source electrode and ground of the first metal-oxide-semiconductor；
The positive input of the four-operational amplifier and the control terminal connection of releasing of control module, four-operational amplifier
Negative input is connect with the source electrode of the first end of 3rd resistor and the first metal-oxide-semiconductor respectively, the output end of four-operational amplifier
It is connect with the grid of the first metal-oxide-semiconductor.
6. energy-storage travelling wave tube energy as described in claim 1 is released and recovery circuit, which is characterized in that the second switch circuit
Including the second metal-oxide-semiconductor, first resistor, second resistance and third metal-oxide-semiconductor,
The first end of the drain electrode of second metal-oxide-semiconductor and energy-storage travelling wave tube connects, the source electrode of the second metal-oxide-semiconductor respectively with transformer secondary output
The Same Name of Ends of coil is connected with the first end of first resistor, the grid of the second metal-oxide-semiconductor respectively with the second end of first resistor and
The first end of two resistance connects, and the second end of the second resistance is connect with the drain electrode of third metal-oxide-semiconductor, the source electrode of third metal-oxide-semiconductor
It is connected to ground, the grid of third metal-oxide-semiconductor and the recycling control terminal of control module connect.
7. a kind of high voltage power supply including any circuit in claim 1-6, which is characterized in that the energy-storage travelling wave tube is simultaneously
It is associated in the first capacitance of high voltage power supply output end；
The control module includes the feedback circuit, controller, the first fortune of the output voltage for detecting high voltage power supply output end
Calculate amplifier, second operational amplifier, third operational amplifier, the first reference power source and the second reference power source；
The input terminal of the feedback circuit is connect with the first end of the first capacitance, the output end of feedback circuit and the first operation amplifier
The negative input of device connects, and the positive input of the first operational amplifier and the control signal end of controller connect；Described
The output end of one operational amplifier is inputted with the negative input of second operational amplifier, the positive of third operational amplifier respectively
End is connected with the voltage adjustable side of high voltage power supply；
The positive input of the second operational amplifier is connect with the first reference power source output end, second operational amplifier it is defeated
Outlet is connect with the switch terminals of first switch circuit；
The negative input of the third operational amplifier is connect with the second reference power source output end, third operational amplifier it is defeated
Outlet is connect with the switch terminals of second switch circuit.
8. high voltage power supply as claimed in claim 7, which is characterized in that further include PWM signal generator, the pwm signal hair
The input terminal of raw device is connect with the output end of the first operational amplifier, the output end of PWM signal generator and the electricity of high voltage power supply
Press adjustable side connection.
9. a kind of power generator comprising claim 7,8 high voltage power supplies, which is characterized in that further include AC/DC conversions
Device, power amplifier, one or two electrode, signal generator and the sensor of the impedance for detecting electrode current loop；
The AC/DC switch inputs are electrically connected with city, and AC/DC converter output ends are connect with high voltage power supply input terminal, high
Piezoelectricity source output terminal is connect with power amplifier high voltage input terminal, and signal generator output end connects with power amplifier high-frequency driving signal input terminal
It connects, the first end connection of power amplifier output end and electrode, the second end of the electrode acts on body operation position, and sensor is defeated
The signal input part of outlet and controller connects；
Or the input unit of the target power on human body is acted on including the electrode is arranged, the input unit it is defeated
Outlet is connect with the target power input terminal of the controller.
10. a kind of energy as described in one of claim 1-8 is released and recovery method, which is characterized in that including：
The control signal voltage that controller exports is compared with the attenuated feedback voltage of the output voltage of high voltage power supply, it is described
Control the pad value for the target output voltage that signal is high voltage power supply；
If controlling signal voltage is less than feedback voltage, high voltage power supply reduces output voltage, and control module opens high voltage power supply output
It holds the energy bleed-off circuit of the first capacitance in parallel and disconnects energy recovery circuit, the energy bleed-off circuit includes the first electricity
Hold, transformer and the first metal-oxide-semiconductor, the energy of the first capacitance are stored in the primary coil of transformer；
If controlling signal voltage is more than feedback voltage, high voltage power supply increase output voltage and to high voltage power supply output end it is in parallel the
One capacitance charges；
Synchronously, control module opens the energy recovery circuit of the first capacitance and closes energy bleed-off circuit, the energy regenerating
Circuit includes the first capacitance, transformer secondary coil, the second capacitance and the second metal-oxide-semiconductor；Energy in transformer turns
Secondary coil is moved to, the first capacitor charging of energy recovery circuit pair is passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110492773A (en) * | 2019-08-19 | 2019-11-22 | 佛山市众盈电子有限公司 | A kind of inverter circuit |
| CN110492432A (en) * | 2019-08-19 | 2019-11-22 | 深圳市独尊科技开发有限公司 | A kind of high pressure excitation apparatus |
| CN114424033A (en) * | 2019-09-19 | 2022-04-29 | 弗瑞柏私人有限公司 | Sensor network device |
| CN114614853A (en) * | 2020-12-07 | 2022-06-10 | 株式会社村田制作所 | High-frequency module and communication device |
| CN115913004A (en) * | 2022-12-21 | 2023-04-04 | 苏州中科科仪技术发展有限公司 | Braking circuit, system and braking method of magnetic suspension molecular pump controller |
| CN116094512A (en) * | 2023-02-01 | 2023-05-09 | 无锡宇宁智能科技有限公司 | Analog direct addition circuit and corresponding electronic equipment |
| CN116232011A (en) * | 2023-03-07 | 2023-06-06 | 禹创半导体(深圳)有限公司 | Voltage conversion device with energy recovery mechanism and power supply chip |
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| CN116094512A (en) * | 2023-02-01 | 2023-05-09 | 无锡宇宁智能科技有限公司 | Analog direct addition circuit and corresponding electronic equipment |
| CN116094512B (en) * | 2023-02-01 | 2023-12-12 | 无锡宇宁智能科技有限公司 | Analog direct addition circuit and corresponding electronic equipment |
| CN116232011A (en) * | 2023-03-07 | 2023-06-06 | 禹创半导体(深圳)有限公司 | Voltage conversion device with energy recovery mechanism and power supply chip |
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