KR20220058064A - Pulsed Power Modulator based on Modular Structure - Google Patents

Abstract

The present invention provides a modular pulse power supply device. The modular pulse power supply device includes a switch unit, a capacitor unit, and a pulse module including a diode unit. The switch unit includes an on switch and an off switch, complementarily operating with each other by being connected in series. The capacitor unit includes a capacitor connected in a row to both ends of the switch unit. The diode unit includes a diode connected to a first node of which a cathode is connected to the capacitor and the on switch. According to the present invention, redesign of a transformer for charging the capacitor is unnecessary. So, the modular pulse power supply device can effectively satisfy voltage and current requirements of different specifications depending on application fields as output is easily increased and decreased by the addition and reduction of the pulse module.

Description

Modular Pulsed Power Modulator {Pulsed Power Modulator based on Modular Structure}

The present invention relates to a pulse power supply device, and more particularly, to a modular pulse power supply device capable of easily increasing output voltage and current while stacking unit modules capable of generating a pulse in series/parallel.

1 is a diagram illustrating an internal circuit of a conventional pulse power supply device. In FIG. 1, the pulse power supply includes an energy storage capacitor, a switch for applying a pulse, and a switch for pulling down a pulse to form one power cell, and has a structure that generates a high voltage pulse through stacking in units of cells have

However, in this structure, since the maximum output voltage is first defined and the transformer and the rectifier circuit for charging the energy storage capacitor are designed, modular design is difficult.

US 101739882 B1

The present invention has been devised to solve the above-mentioned problems in the prior art, and it is easy to increase or decrease the output through the addition and removal of modules, so that it is possible to effectively meet the voltage and current requirements of different specifications according to the application field. An object of the present invention is to provide a pulse power supply.

In order to achieve the above object, a pulse power supply device according to the present invention includes a pulse module including a switch unit, a capacitor unit, and a diode unit. The switch part includes an on switch and an off switch that are connected in series and operate complementary to each other, the capacitor part includes a capacitor connected in parallel at both ends of the switch part, and the diode part has a cathode connected on a first node to which the capacitor and the on switch are connected includes a diode.

According to this configuration, since there is no need to redesign the transformer for charging the capacitor, it is easy to increase or decrease the output through the addition and removal of the pulse module, so that it can effectively meet the voltage and current requirements of different specifications according to the application field. It is possible to provide a modular pulse power supply that can

In this case, the cathode may further include a DC charger connected to the second node to which the off switch and the capacitor are connected, and the anode connected to the anode of the diode.

In addition, the pulse module may further include a pulse output unit including a first output terminal connected to the third node to which the on switch and the off switch are connected, and a second output terminal connected to the second node.

In addition, it may further include a pulse signal applying unit including a pulse signal generating unit for generating a pulse signal applied to the switch unit.

In addition, the second node may further include a second pulse module in which a second output terminal is connected to a first output terminal of the first pulse module connected to the DC charger.

Also, the pulse signal applying unit may include a plurality of pulse signal generating units corresponding to different pulse modules. According to this configuration, it is possible to shape various types of pulse voltages by applying different pulse signals to the plurality of pulse modules.

Also, the pulse signal applying unit may provide a pulse signal of the same pulse signal generating unit to some of the plurality of pulse modules. According to such a configuration, it is possible to simplify the structure of the pulse applying unit by matching other identical pulse generating units to some of the entire modules. .

In addition, a first modular pulse power supply including a pulse module connected to the first DC charging unit, and a second modular pulse power supply including a pulse module connected to the second DC charging unit, wherein the pulse output unit includes a first modular pulse The first output terminal of the pulse module included in the power supply unit and the first output terminal of the pulse module included in the second modular pulse power supply unit may include two terminals for outputting pulses, respectively. According to such a configuration, it is possible not only to generate a bipolar pulse, but also to freely adjust the pulse width.

According to the present invention, since there is no need to redesign the transformer for charging the capacitor, it is easy to increase or decrease the output through the addition and removal of the pulse module, so that it is possible to effectively meet the voltage and current requirements of different specifications according to the application field. It is possible to provide a modular pulse power supply with

In addition, it is possible to shape various types of pulse voltages by applying different pulse signals to the plurality of pulse modules.

In addition, the structure of the pulse applying unit may be simplified by matching other identical pulse generating units to some of the entire modules. .

In addition, it is possible not only to generate a bipolar pulse, but also to freely adjust the pulse width.

1 is a diagram showing an internal circuit of a conventional pulse power supply device.
Fig. 2 is a schematic circuit diagram of a pulse power supply device according to a first embodiment of the present invention;
Figure 3 is a view for explaining a charging mode of the modular pulse power supply of Figure 2;
FIG. 4 is a view for explaining a pulse application mode of the modular pulse power supply of FIG. 2 .
FIG. 5 is a view for explaining a pulse pull-down mode of the modular pulse power supply device of FIG. 2;
6 is a view for explaining the On/Off Pulse Generator and GD operation of the modular pulse power supply of FIG. 2 .
7 is a schematic circuit diagram of a pulse power supply device according to a second embodiment of the present invention;
8 and 9 are diagrams illustrating examples of output voltages of the pulse power supply having the structure of FIG. 7;
10 is a schematic circuit diagram of a pulse power supply device according to a third embodiment of the present invention;
11 is a diagram illustrating an output voltage of the pulse power supply device of FIG. 10;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a schematic circuit diagram of a pulse power supply device according to a first embodiment of the present invention. In FIG. 2 , the pulse power supply device includes a plurality of pulse modules 100 , an On/Off pulse generator 200 , and a DC charger 300 .

One pulse module 100 is an energy storage capacitor (Cs; 110), an on switch for applying a pulse (S _ON ; 120), an on driving circuit (GD _ON ; 142) at the same time pulling down the pulse and the capacitor of each module _Off switch ( _{S OFF} ; 130) that provides a current path for charging (D _charging ; 160).

The pulse generator 200 is a bipolar pulse generating circuit for controlling the output pulse, and the DC charger 300 charges a plurality of energy storage capacitors 110 in parallel.

FIG. 3 is a view for explaining a charging mode of the modular pulse power supply of FIG. 2 . When all of the off switches (S _OFF ; 130) are turned on, the energy storage capacitors are simultaneously charged in parallel with the output voltage value of the DC charger 300 as shown in FIG. 3 . At this time, the capacitor C _{S_1} ; 110-1 is charged through the diode D _{charging_1} ; 160-1, and the capacitor C _{S_2} ; 110-2 is the diode D _{charging_1} , D _{charging_2} ; (160-1, 160) -2) and an off switch (S _{OFF_1} ; 130-1), and a capacitor (C _{S_N} ; 110-N) is a diode (D _{charging_1} ~ D _{charging_N} ; 160-1 ~ 160-N) and an off switch (S) _{OFF_1} ~ S _{OFF_N-1} ; 130-1 ~ 130-N), it can be checked that charging is performed.

FIG. 4 is a view for explaining a pulse application mode of the modular pulse power supply of FIG. 2 . As shown in FIG. 4 , when the off switch S _OFF 130 is turned off and the on switch S _ON 120 is turned on, all capacitors are connected in series to output a high voltage pulse.

FIG. 5 is a view for explaining a pulse pull-down mode of the modular pulse power supply of FIG. 2 . As shown in FIG. 5, when the on switch (S _ON ; 120) is turned off and the off switch (S _OFF : 130) is turned on, the pulse voltage applied to the load is set to 0 to implement a fast pulse fall time. It provides a pull-down path through the off switch (S _OFF ; 130). On the other hand, the pulse pull-down mode occurs simultaneously with the charging mode.

6 is a view for explaining the On/Off Pulse Generator and GD operation of the modular pulse power supply of FIG. 2 . The On/Off Pulse Generator 200 generates a bipolar pulse to control the repetition rate and pulse width of the output pulse, and accordingly, the driving signal of the on switch (S _ON ;120) and the off switch (S _OFF ;130) is applied to the switch gate applied to the terminal.

More specifically, when a positive on pulse is applied to the on driving circuit GD _ON 142, a driving voltage is applied to the gate of the on switch S _ON 120 to turn on the switch, and when a negative off pulse is applied, the off switch Discharge the gate driving voltage of (S _OFF ;130) to turn off the switch.

When a positive on-pulse is applied to the off driving circuit (GD _Off ; 144), the off switch (S _OFF ; 130) The switch is turned off by discharging the gate driving voltage, and when a negative off pulse is applied, the off switch (S _OFF ;130) A driving voltage is applied to the gate to turn on the switch, and even if the off-pulse disappears, the gate voltage is maintained until the next on-pulse is applied.

Accordingly, the driving signals of the on switch S _ON 120 and the off switch S _OFF 130 operate complementaryly. In addition, as shown in FIG. 6 , it is possible to easily implement a short discharge time and a long charge time.

7 is a schematic circuit diagram of a pulse power supply device according to a second embodiment of the present invention. In FIG. 2, one On/Off Pulse Generator 200 applies a pulse signal to all the pulse modules 100, but in FIG. 7, a separate On/Off Pulse Generator 200 corresponding to each pulse module is provided. Apply a pulse signal.

In the structure of FIG. 7 , various types of pulse voltages can be formed by controlling output time delays for the plurality of On/Off Pulse Generators 200 . 8 and 9 are diagrams illustrating examples of output voltages of the pulse power supply having the structure of FIG. 7 .

On the other hand, in some cases, unlike in FIGS. 2 and 7 , some of the entire pulse modules receive a pulse signal by the corresponding On/Off Pulse Generator 200 , and in the rest, a plurality of pulse modules use one On/Off Pulse Generator 200 . A pulse power supply device may be implemented to receive a pulse signal by the Off Pulse Generator 200 .

10 is a schematic circuit diagram of a pulse power supply device according to a third embodiment of the present invention, and FIG. 11 is a diagram illustrating an output voltage of the pulse power supply device of FIG. 10 . 10 shows an example in which different pulse power supply devices each having the structure shown in FIG. 2 are connected to form one pulse power supply device.

As shown in FIG. 10 , when differential connection is performed, a bipolar pulse may be generated, and as shown in FIG. 11 , generation of a short pulse may be easily implemented.

Although the present invention has been described with reference to some preferred embodiments, the scope of the present invention should not be limited thereto, but should also extend to modifications or improvements of the above embodiments supported by the claims.

100: pulse module
110: energy storage capacitor (Cs)
120: on switch (S _ON )
130: off switch (S _OFF )
140: gate driving circuit
142: driving circuit
142: on driving circuit (GD _ON )
144: off driving circuit (GD _Off )
150: transformer (TR _G )
160: charging diode (D _charging )
200: On/Off pulse generator
300: DC Charger

Claims (8)

a switch unit including an on switch and an off switch connected in series to operate complementary to each other;
a capacitor unit including capacitors connected in parallel to both ends of the switch unit; and
and a pulse module including a diode part having a cathode connected on a first node to which the capacitor and the on switch are connected.
The method according to claim 1,
The modular pulse power supply device according to claim 1, further comprising a DC charger having a negative electrode connected to the second node to which the off switch and the capacitor are connected, and a positive electrode connected to the positive electrode of the diode.
The method according to claim 2, The pulse module,
The modular pulse power supply device of claim 1, further comprising: a pulse output unit including a first output terminal connected to a third node to which the on switch and the off switch are connected, and a second output terminal connected to the second node.
4. The method according to claim 3,
The modular pulse power supply device according to claim 1, further comprising a pulse signal applying unit including a pulse signal generating unit generating a pulse signal applied to the switch unit.
5. The method according to claim 4,
The modular pulse power supply device of claim 1, further comprising a second pulse module having a second output terminal connected to a first output terminal of the first pulse module having the second node connected to the DC charging unit.
6. The method of claim 5,
The pulse signal applying unit is a modular pulse power supply, characterized in that it comprises a plurality of pulse signal generating units corresponding to different pulse modules.
7. The method of claim 6,
The pulse signal applying unit is a modular pulse power supply, characterized in that for providing a pulse signal of the same pulse signal generator to some of the plurality of pulse modules.
6. The method of claim 5,
a first modular pulse power supply including a pulse module connected to the first DC charger; and
A second modular pulse power supply unit including a pulse module connected to the second DC charging unit,
The pulse output unit comprises an output terminal of a pulse module included in the first modular pulse power supply unit and an output terminal of a pulse module included in the second modular pulse power supply unit as two terminals for outputting pulses, respectively. Modular pulsed power supply.

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