929results 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.

High-power- (HP-) generator (10) configured to deliver high power with a high value of voltage and / or high current value to a pulsing unit (3), wherein the pulsing unit (3) is configured to deliver pulsed high power with a high value of voltage and / or high current with pulse-high-duration of 10 µs or less and pulse- low-duration of 10 µs or less to a capacitive load, in particular to a plasma process, the HP-generator (10) comprises: - a control input (11), configured to be connected to a control signal from an external pulsing control (9), wherein the pulsing control (9) also controls a pulse-high-duration and a pulse-low-duration of the pulsing unit (3), - a control unit (22) configured to adjust the output of the HP-generator (10) responsive to the signal at the control input (11) in a way that the output voltage and / or current of the HP-generator (10) may be changed during a pulse-low-duration and is constant during the following pulse-high-duration of a pulse at the output of the pulsing unit (3)

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.

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.

A clock generator includes a voltage supply circuit configured to generate a control voltage based on a first current and a control signal. The clock generator also includes a first clock output circuit configured to output the control signal by comparing a first reference voltage with the control voltage, and to output a first clock signal by comparing a third reference voltage having a different voltage level from the first reference voltage with the control voltage. clock generator further includes a second clock output circuit configured to compare a second reference voltage with the control voltage, to compare a fourth reference voltage having a different voltage level from the second reference voltage with the control voltage, and to generate a second clock signal having a phase different from that of the first clock signal.

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.

The utility model provides an adjustable pulse generator. The adjustable pulse generator comprises an input unit, a control unit and a driving circuit, the input unit is used for receiving a PWM signal parameter value input by a user; the control unit is used for outputting a PWM signal with a preset frequency and a preset duty ratio based on a PWM signal parameter value input by a user; and the driving circuit is used for modulating the PWM signal output by the control unit so as to drive the power semiconductor device to be tested. According to the adjustable pulse generator provided by the invention, parameters such as the frequency and the duty ratio of the pulse signal are adjustable, the circuit structure is simple, the cost is relatively low, and the size of a test tool is reduced.

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.

High-power- (HP-) generator (10) and method to deliver pulsed high power with a high value of voltage and / or high current value to a capacitive load, in particular to a plasma process, comprising: - several low-power- (LP-) generators (14, 16,18), o each LP-generator (14, 16, 18) comprising an energy storage component (Cl, LI), wherein in use the energy storage component (Cl, LI) is charged to a predefined value related to the energy storage component, o each LP-generator (14, 16, 18) supplying, in use, at its output an LP- generator-value which corresponds to the value of the energy storage component (C1, C2, Cn L1, L2, Ln) incorporated in the respective LP- generator (14, 16, 18), - a coupling (20) in which the LP-generators (14, 16, 18) are electrically connected such that a coupling-value at the output of the coupling (20), which corresponds to the output value of the HP-generator (10), may be obtained, and which is, in use, at least in some states of the HP-generator (10) higher than the LP-generator-value at the output of one of the LP- generators (14, 16, 18), - a control unit (22) configured to select the contribution of LP-generators (14, 16, 18) to the output value of the HP-generator (10) during power delivery of the HP-generator (10), in order to generate a rise and / or decay of a pulse at the output of the coupling (20), - wherein the HP-generator (10) is at least partially directly liquid cooled, in particular by immersed dielectric cooling liquid, in particular the LP- generators (14,16,18) are bathed by dielectric cooling liquid.

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 a design method of a novel pulse power supply. The method comprises the design and architecture relation of circuits such as a switching power supply module, a numerical control processing unit, a pulse waveform generator, a signal amplification and power amplifier, a negative feedback sampling circuit and an output measurement circuit. The numerical control processing unit carries out digital synthesis according to input pulse parameters to generate pulse waveforms, the pulse waveforms are output after passing through the signal amplifier and the power amplifier, the feedback sampling circuit carries out real-time sampling on voltage and current of the pulse power supply and inputs the voltage and current to the numerical control processing unit, and the numerical control processing unit carries out closed-loop control. And high-precision pulse power supply output is achieved. Different from single-bridge or double-bridge switch chopping of an output part of a traditional pulse power supply, the method has the advantages that pulse signals output by the method are accurate and controllable, positive and negative pulse signals are under closed-loop control of a circuit, zero points of output pulses are accurate and do not deviate, small signals are accurate, pulse edges are neat, expansion is easy, and cost is low.

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.

A high power (HP) generator includes a plurality of low power (LP) generators, a coupling in which the LP generators are electrically connected, and a control unit. During operation, a coupling-value at an output of the coupling is higher than an LP-generator-value at an output of one of the LP generators. The control unit is configured to select a contribution of each LP generator in order to generate a rise and / or a decay of a pulse at the output of the coupling. At least one LP generator includes an LP-generator-value limiting circuit. The LP-generator-value limiting circuit includes at least one of (i) a series circuit of a diode and a capacitor configured to clamp an overvoltage present at ends thereof, and a discharge circuit to discharge the capacitor, or (ii) a resistor and a switching element, or (iii) a variable electrically controllable impedance with a power dissipating part.

The invention discloses an oscillation circuit. The oscillating circuit comprises a charging and discharging module, an energy storage module, a self-zeroing comparison module and an output module; the self-return-to-zero comparison module comprises a storage unit and an output unit; the charging and discharging module is connected with the energy storage module, and the charging and discharging module is used for charging and discharging the energy storage module according to the power supply voltage, so that the energy storage module outputs a triangular wave signal; the storage unit is connected with a first threshold voltage, a second threshold voltage and an offset voltage of the output unit, and the output unit is used for outputting a comparison signal based on a comparison result of the triangular wave signal and the first threshold voltage when the feedback voltage is at a second level and outputting a comparison signal based on a comparison result of the triangular wave signal and the first threshold voltage when the feedback voltage is at a first level. Outputting a comparison signal based on a comparison result of the triangular wave signal and the second threshold voltage; and the output module is connected with the self-return-to-zero comparison module, the feedback voltage is accessed to the output module, and the output module is used for outputting an oscillation signal according to the comparison signal and the feedback voltage. According to the technical scheme, the reliability and the stability of the oscillation circuit are improved.

A high power (HP) generator includes a plurality of low power (LP) generators, a coupling in which the plurality of LP generators is electrically connected, and a control unit. During operation, at least in some states of the HP generator, a coupling-value at an output of the coupling is higher than an LP-generator-value at an output of one of the plurality of LP generators. The control unit is configured to select a respective contribution of each of the plurality of LP generators in order to generate a rise and / or a decay of a pulse at the output of the coupling. The HP generator is at least partially directly liquid cooled, by being immersed in a dielectric cooling liquid.