600results about "Pulse generation by energy-accumulating element" patented technology

The invention provides a double-pulse high-frequency switching power supply control method and system for precise electroplating, and relates to the field of electroplating, and the method comprises the steps: collecting area surface data through a three-dimensional scanner, and obtaining a three-dimensional model; extracting a high-curvature area grid according to the three-dimensional model, and calculating to obtain a surface concave-convex degree index; performing current field simulation, and calculating current density vector distribution; when the deviation of the current density vector distribution exceeds a preset deviation threshold value, pulse parameters are optimized through a genetic algorithm; selecting a pulse parameter which is most matched with the surface concave-convex degree index, and carrying out iterative calculation to obtain updated current density vector distribution; based on the difference between the updated current density vector distribution and the initial distribution, predicting a coating thickness value, and determining a preliminary evaluation index; and optimizing pulse parameters to obtain a final control scheme of uniform current distribution. According to the method, pulse parameters can be dynamically optimized according to the geometrical shape of the workpiece, and uniform current distribution and stable plating quality are realized.

The invention discloses a pulse stable output control method and system for an ns-level high repetition frequency fast pulse power supply, and relates to the technical field of automatic control, the system is composed of a plurality of functional modules, and the system comprises a self-adaptive absorption module, a control module and an output control module, and the self-adaptive absorption module obtains power supply parameters through real-time sampling, and the power supply parameters comprise load impedance and switch tube parasitic parameters; dynamically optimizing R and C parameters of the RCD absorption circuit and the active clamping circuit based on power supply parameters; the feed-forward prediction module is used for extracting derivative state information according to the power supply parameters, acquiring load current feed-forward and resonant circuit states based on the derivative state information, modeling based on the load current feed-forward and resonant circuit states, and predicting the drain-source voltage valley bottom moment of the switch tube; and the multi-section variable impedance transmission module adopts a three-section variable impedance structure, performs broadband impedance matching based on R and C parameters of the optimized RCD absorption circuit and the active clamping circuit, inhibits pulse leading edge reflection distortion, and outputs undistorted pulse signals.

The invention relates to an electromagnetic pulse collaborative deicing system based on multi-mode perception. The system comprises a power supply system; the FPGA controller is used for logic control and signal processing, calculating electromagnetic pulse parameters and realizing high-speed and accurate deicing instruction scheduling; a sensing module; a real-time detection system; a pulse generation unit; and the deicing module executes an electromagnetic pulse deicing action and efficiently removes ice covered on the surface of the power grid. The invention further discloses an electromagnetic pulse collaborative deicing method based on multi-mode sensing. Through the electromagnetic pulse technology, the power transmission and distribution line ice can be efficiently removed, compared with a traditional thermal ice melting method, the energy consumption is greatly reduced, the response speed is remarkably increased, and the deicing strategy and parameters are dynamically adjusted according to real-time monitoring data based on the real-time signal processor of the FPGA; the power supply priority can be dynamically adjusted according to the energy supply condition, the energy is improved to the maximum extent, and an accurate deicing basis is provided for the system.

The present invention discloses a pulse generator and a pulse rod, which relate to the field of pulse circuit technology. The pulse generator includes a frequency control unit, a dual closed-loop pulse amplification unit, a digital signal processing unit and an adaptive power management unit. The frequency control unit includes an environmental sensor and a microcontroller. The microcontroller can calculate a preset pulse frequency based on information transmitted by the environmental sensor. The input end of the dual closed-loop pulse amplification unit can receive a pulse signal transmitted by the microcontroller, amplify it to a preset pulse frequency, and provide a pulse current to an electrostatic elimination needle. The digital signal processing unit can digitize the pulse signal to enhance the anti-interference ability of the pulse signal. The adaptive power management unit includes a dynamic voltage regulation module electrically connected to an external power supply, and the dynamic voltage regulation module can dynamically adjust the output voltage. The technical solution provided by the present invention can provide a pulse generator with high stability, a wide adjustment range and strong anti-interference ability.

Embodiments of the invention includes various power supplies for plasma systems. These power supplies, for example, closes a switch to connect and disconnect a current pathway to cause an application of an asymmetric periodic voltage waveform. Where each cycle of the asymmetric periodic voltage waveform includes a first portion that begins with a first negative voltage and changes to a positive peak voltage, a second portion that changes from the positive peak voltage to a third voltage level and a fourth portion that includes a negative voltage ramp from the third voltage level to a fourth voltage level.

Disclosed is a method and standard module for amplifying pulsed power. The key point of the technical solution is as follows: a method for amplifying pulsed power is formed by means of the joint action of a LASER mode of a crystal medium, a carrier multiplication amplification mode of a semiconductor medium, and a plasma breakdown amplification mode of a gas medium. Electric power which is amplified is converted into optical power first, the optical power is amplified again, and the amplified optical power is converted into electric power again by a photoelectric conversion and amplification device. A gas switch is triggered based on a photoconductive switch to generate a timing-synchronized high-power electric pulse. The high-power electric pulse may be directly outputted or distributed in multiple channels to obtain multiple timing-synchronized trigger signals. In combination with pulse charge of a capacitor, multiple timing-synchronized high-power electric pulses are outputted.

A high power (HP) generator (10) and method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, - a high power (HP) generator (10) and method, wherein the control unit (22) is further configured to select the contribution of the LP generators (14, 16, 18) in such a way as to reduce voltage overshoots at specific locations of the output and / or load of the HP generator (10), in particular at the substrate of a plasma process.

A high power (HP) generator (10) and method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, A high power (HP) generator (10) and method, wherein a damping circuit (50) is positioned in an open chain configuration between some, particularly all, of the LP generators (14, 16, 18), and in particular the damping circuit (50) includes a resistor (R) and / or an inductor (L).

The invention discloses a high-precision power control method for high-power pulse output of a radio-frequency power supply, which comprises the following steps of: acquiring a radio-frequency emission signal before power amplification of a radio-frequency emission circuit in the high-power radio-frequency power supply to obtain an emission feedback signal TXFB, and acquiring a coupling signal of a detection circuit to obtain an emission feedback signal TXFB; obtaining a forward power feedback signal FWD and a reflection power feedback signal RFL of the radio frequency emission signal; processing the acquired TXFB, FWD and RFL, and calculating the power value of each signal; according to the pulse signal edge, synchronously selecting effective signal power values of TXFB, FWD and RFL; correcting a signal power value of the FWD according to the TXFB; the signal power value change trend of the TXFB and the corrected FWD is analyzed, and the response delay of the TXFB passing through the power amplification circuit is estimated; and calculating forward power output by the radio frequency power supply after response delay, judging whether the forward power is within an allowable range or not, if so, outputting the power to meet the requirement, and otherwise, continuing closed-loop power adjustment. The control precision and the response time of the pulse output power can be improved.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, - A balancing circuit containing components that allow current to flow in only one direction, in particular a diode (D) or a component acting like a diode, is connected between the two LP generators (14, 16, 18).

A high power (HP) generator (10) and method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, particularly a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, the HP generator (10) is at least partially liquid-cooled, in particular directly by an immersed dielectric cooling liquid, and in particular the LP generators (14, 16, 18) are immersed in the dielectric cooling liquid.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, The control unit (22) is further configured to select the contribution of the LP generators (14, 16, 18) in a galvanically isolated manner, in particular via a fiber optic connection or a magnetic coupling.

Various RF plasma systems are disclosed that do not require a matching network. In some embodiments, the RF plasma system includes an energy storage capacitor; a switching circuit coupled with the energy storage capacitor, the switching circuit producing a plurality of pulses with a pulse amplitude and a pulse frequency, the pulse amplitude being greater than 100 volts; a resonant circuit coupled with the switching circuit. In some embodiments, the resonant circuit includes: a transformer having a primary side and a secondary side; and at least one of a capacitor, an inductor, and a resistor. In some embodiments, the resonant circuit having a resonant frequency substantially equal to the pulse frequency, and the resonant circuit increases the pulse amplitude to a voltage greater than 2 kV.

The invention provides a double-phase pulse circuit and a high-frequency pulse therapeutic apparatus, and relates to the technical field of medical instruments, and the double-phase pulse circuit comprises a booster circuit, N groups of pulse modulation isolation transformation circuits, an amplitude-limiting current-limiting circuit, a cascade circuit, a double-phase wave modulation circuit and a main controller, the boost circuit performs pulse modulation and boost processing on the output DC voltage of the target DC power supply to obtain an initial pulse voltage signal; n groups of pulse modulation isolation transformation circuits respectively perform isolation boosting processing on the initial pulse voltage signals to obtain N high-voltage pulse signals; the amplitude-limiting current-limiting circuit performs amplitude-limiting current-limiting processing on the N high-voltage pulse signals to obtain N high-voltage square-wave pulse signals; performing cascade processing on the N high-voltage square-wave pulse signals to obtain a target square-wave pulse signal; and performing dual-phase modulation on the target square wave pulse signal to obtain a target dual-phase pulse signal. According to the technical scheme, the effect of improving the safety of the double-phase pulse circuit is achieved.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each LP generator (14, 16, 18) includes an energy storage component (C1, L1), and in use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; each LP generator (14, 16, 18) when in use provides at its output an LP generator value corresponding to the value of an energy storage component (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18); Several low power (LP) generators (14, 16, 18); - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, At least one, preferably several and most preferably all LP generators (14, 16, 18) comprise an LP generator value limiting circuit (151), e.g. a voltage limiting circuit or a current limiting circuit.

A pulse forming network (PFN), comprising a single common passive output circuit comprising an inductor connected in series to a load and a diode connected in parallel to the load, a plurality of capacitor units set to store a plurality of electrical charges in a plurality of working output voltages, a plurality of switches, each adapted to electrically couple a respective one of the plurality of capacitor units to the common passive output circuit electrically connecting all the switches to the load, and a control unit adapted to operate the plurality of switches to discharge the plurality of charges into the load, via the common passive output circuit, in a sequence ordered to form a regulated energizing pulse having a desired multi-level voltage waveform.

A high power (HP) generator (10) and method for delivering pulsed high power having high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: several low power (LP) generators (14, 16, 18), Each LP generator (14, 16, 18) comprises an energy storage component (C1, L1), and in use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; several low power (LP) generators (14, 16, 18), each LP generator (14, 16, 18) providing, in use, at its output an LP generator value corresponding to the value of an energy storage component (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18); a combiner (20), in which the LP generators (14, 16, 18) are electrically connected so that a combiner value at an output of the combiner (20) can be obtained which corresponds to an output value of the HP generator (10), the combiner value being higher, in use, than the LP generator value at the output of one of the LP generators (14, 16, 18), at least in some states of the HP generator (10); a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the output delivery of the HP generator (10) in order to cause a rise and / or a decay of the pulses at the output of the combiner (20), A high power (HP) generator (10) and method, wherein charging energy for the LP generators (14, 16, 18) is provided via a transformer (T1, T2...Tn) comprising a main winding (P1, P2...Pn) and a secondary winding (SW1, SW2...SWn) for each LP generator (14, 16, 18).

The embodiment of the invention discloses a high-power high-repetition-frequency pulse constant-current discharge circuit and a pulse laser power supply, and the high-power high-repetition-frequency pulse constant-current discharge circuit comprises a multi-phase staggered parallel Buck circuit, an energy feedback circuit and a controller. The controller samples current in the multi-phase interleaving Buck circuit so as to perform time sequence trigger control on switching tubes in the multi-phase interleaving Buck circuit and the energy feedback circuit, so that charging and discharging of an energy storage inductor in the multi-phase interleaving Buck circuit and recovery of residual energy of the energy storage inductor after discharging are realized, and energy waste is reduced.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: a plurality of low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Multiple LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during at least a plurality of states of the HP generator (10) in use; - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, The control unit (22) furthermore determines the contribution of the LP generators (14, 16, 18) according to the following characteristics: The output of the coupling (20) and / or the output of the HP generator (10) is a stepped waveform, particularly at the rising and / or falling edges of a pulse and / or during that pulse. The method is configured to select one or some combination of the above to be achieved.

Offline prior to operation, an optimised control sequence is derived for a pulse system comprising a reactive circuit for generating electromagnetic pulses, such as a transcranial magnetic stimulation circuit, and cascaded switching modules for switchably connecting capacitive discharge elements to provide a multi-level output voltage for the reactive circuit. A discrete-time model predicts an electrical state of the pulse system. A target profile for an electromagnetic pulse is received. For respective time-steps of the control sequence taken in succession, an optimal path of switching states over a window of time-steps starting with the respective time-step is derived, optimising a cost function having a deviation cost contribution representing deviation of an electrical state of the pulse system predicted by the discrete-time model from the target profile over the window. The switching state of the determined path at the respective time-step is selected for the control sequence.

The invention discloses an energy consumption type pulse special power supply topology circuit, particularly relates to the technical field of power supply circuits, and is technically characterized in that a forward energy storage unit is used for outputting forward current to an external load coil and providing energy required by main compression for a field inversion configuration device; the negative energy storage unit is used for outputting negative current to an external load coil and providing bias field energy for the field inversion configuration device; the charging unit is also used for charging the current source unit; the current source unit is used for providing bias current for an external load coil and creating a bias condition for the field inversion configuration device; the resonance unit is used for outputting resonance current to an external load coil and providing energy required by pre-ionization for the field inversion configuration device; the first consumption unit is used for consuming residual electric energy after the external load coil and the current source unit work; the first control unit is used for controlling short circuit of the first consumption unit; the second control unit is used for controlling the on-off of the resonance unit; and the third control unit is used for controlling the on-off of the negative energy storage unit.

The invention discloses a continuous pulse shaping circuit based on a multi-module pulse transformer and a control method, and belongs to the technical field of pulse power. Which comprises a plurality of groups of single-module transformer units which are connected in series, and a primary charging power supply is connected in parallel with the two ends of all the single-module transformer units, and is characterized in that a bridge circuit is arranged in each group of single-module transformer unit and is connected with a primary winding of a pulse transformer; the secondary windings of the pulse transformers in all the single-module transformer units are respectively connected with a load in parallel; the bridge circuit comprises two branches which are connected in a staggered mode, the energy storage capacitor is connected between the two branches, and the two branches share the energy storage capacitor and are reversely turned off in a time-sharing mode under driving of voltages at the two ends of the energy storage capacitor. According to the continuous pulse shaping circuit based on the multi-module pulse transformer and the control method, the bridge circuit is reliably turned off through the energy storage capacitor, so that the continuous pulse shaping circuit has relatively high through-current capability and relatively low cost; and the energy storage capacitor reversely turns off the main switch thyristor, so that the utilization efficiency of energy is improved.

A high power (HP) generator (10) configured to deliver pulsed high power of high voltage and / or current values ​​to a capacitive load, in particular to a plasma process, - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, - a control unit (22) have a current boost capability of at least 10 A / μs, and / or Capable of withstanding voltages of approximately 0.5 kV or more with a voltage change rate of 15 kV / μs or more It further includes switching units (24, 26, 28).

The invention relates to the technical field of magnetic shielding spaces, and discloses a wide-range pulse forming circuit and device for a magnetic shielding space, and charging units in a positive pulse forming circuit and a negative pulse forming circuit are used for boosting and charging an energy storage element of a stacked boosting unit in a continuous oscillation mode; the stacked boosting unit is composed of multiple stages of Marx circuit modules and used for achieving parallel charging and series discharging of an energy storage element through switch time sequence control and outputting bipolar rectangular pulses with independently adjustable amplitude and pulse width. The noise reduction and direct current blocking module is used for noise reduction and direct current blocking processing; the magnetic shielding device is used for demagnetizing the magnetic shielding space. By arranging the positive pulse forming circuit and the negative pulse forming circuit which are the same in structure and are independent, and combining the multi-stage Marx circuit module of the stacked boosting unit and the switch time sequence control, the amplitude and the pulse width of the bipolar rectangular pulse are independently adjustable, so that the problem of diversified demagnetization requirements of the magnetic shielding device can be adapted, and the demagnetization efficiency of the magnetic shielding device is improved. And the application range of the circuit is widened.

The utility model provides a magnetic detection device which comprises a light source which is configured to emit detection light, and the detection light is polarized light at least at a preset position where the detection light enters a detected object; the detector is configured to at least receive the detection light reflected by the detected object, and the detector detects the magneto-optical effect at the preset position according to the received detection light; the magnetic field generating device comprises a magnetic field generating coil and a pulse power supply device for providing current for the magnetic field generating coil, and the magnetic field generating coil is constructed to be in a form of at least forming a magnetic field environment at the preset position, so that the test requirement in the high-speed changing magnetic field environment can be met; the magnetic field at the preset position is easy to adjust and is convenient to control.

The present application provides a driving power supply, driving method and system for a central solenoid, and a fusion reaction system. In each of power supply modules of the driving power supply, a positive electrode of a capacitor unit is connected to a first end of a first power unit, a second end of the first power unit and a first end of a second power unit are connected to an auxiliary node, and a second end of the second power unit is connected to a negative electrode of the capacitor unit; the second end of the second power unit in any power supply module is connected to the second end of the second power unit in another power supply module set; the auxiliary node in one power supply module set is connected to a current limiting resistor, a third power unit and an output end of an auxiliary diode, the other end of the current limiting resistor, the other end of the third power unit and an input end of the auxiliary diode are connected to one end of the central solenoid, and the auxiliary node in another power supply module set is connected to the other end of the central solenoid; the power units are controlled, so that the capacitor unit that transmits current is switched between different power supply module sets.

The present application relates to a pulse generation circuit, a pulse generator, and a medical device. The pulse generation circuit includes: a control circuit, a high-voltage power supply circuit, a working power supply circuit, a pulse switch circuit, a plurality of photoelectric isolation drive circuits and a plurality of magnetic isolation power supply circuits. According to the present application, isolation between various power switches can be realized by means of the above photoelectric isolation drive circuits and magnetic isolation power supply circuits; moreover, the photoelectric isolation drive circuits have higher response speeds, such that the synchronization rate of the respective power switches can be improved by controlling the power switches according to a switch control signal by means of the photoelectric isolation drive circuits.

An integrated triggering system for a pulsed-power driver is presented. The triggering system includes a pulse distribution circuit that couples externally generated trigger pulses to midplanes of a limited number of stages of the pulsed-power driver. The pulse distribution circuit includes common midplane nodes, each coupled to a group of midplanes of a same stage via respective isolating inductors. Isolating elements are coupled between the common midplane nodes of a same stage. The triggering system further includes a protection circuit configured to reduce coupling of high voltages triggered at the midplanes to external circuits while allowing the trigger pulses to couple to the midplanes. The protection circuit includes a high pass filter comprising a capacitor. The triggering system further includes a midplane biasing circuit configured to provide a reference ground to the midplanes of all stages. The midplane biasing circuit includes a resistive ladder with nodes coupled to the midplanes.

Various RF plasma systems are disclosed that do not require a matching network. In some embodiments, the RF plasma system includes an energy storage capacitor; a switching circuit coupled with the energy storage capacitor, the switching circuit producing a plurality of pulses with a pulse amplitude and a pulse frequency, the pulse amplitude being greater than 100 volts; a resonant circuit coupled with the switching circuit. In some embodiments, the resonant circuit includes: a transformer having a primary side and a secondary side; and at least one of a capacitor, an inductor, and a resistor. In some embodiments, the resonant circuit having a resonant frequency substantially equal to the pulse frequency, and the resonant circuit increases the pulse amplitude to a voltage greater than 2 kV.

The invention discloses a high-voltage pulse generation circuit based on a front boost structure, a working method and application, and belongs to the field of high-voltage pulse power supplies, the high-voltage pulse generation circuit comprises a direct-current power supply, a front Sepic boost circuit and a pulse forming module which are connected in sequence, and the pulse forming module comprises a plurality of cascaded Marx high-voltage pulse circuits. Therefore, the direct-current power supply is boosted by the aid of the front Sepic booster circuit, boosted electric energy is transmitted to the pulse forming module, and high-voltage pulses are formed on a load by the aid of parallel charge pump voltage and series discharge of the Marx high-voltage pulse circuit. By adopting the high-voltage pulse generation circuit based on the pre-boost structure, the working method and the application, a traditional Marx circuit is optimized through the Sepic boost converter, the voltage gain is improved, the number and cost of devices are reduced, the voltage stress of the devices is reduced, the system efficiency is improved, the power density is increased, the reliability is improved, and the service life of the circuit is prolonged.