KR101069982B1 - A Sterilization Water Production Apparatus with the Uniformed Sterilization Performance - Google Patents

Abstract

The present invention can control the current supplied to the discharge cell to maintain a certain level of discharge performance regardless of the temperature and the component of the water supplied from the discharge cell installed in the water to make the sterilization water to uniformly sterilize Providing a sterilizing water generator that has the purpose and effect.

The present invention is configured to install two or more discharge cells in the water in order to make the sterilization water, to generate a plasma discharge in the discharge cell installed to sterilize various kinds of bacteria present in the water by converting the general water into sterilization water. In order to maintain a certain level of discharge performance regardless of water composition and temperature, the discharge cell serving as a load is provided with a current sensing unit on one side of a signal line for supplying power to the discharge cell to measure current, and the set reference value and measured value. When the measured current is small, increase the discharge voltage between discharge cells by using DC-DC converter, switching mode power supply or AC-DC converter, and in case of low current, DC-DC converter, switching mode power supply or AC It is configured to maintain the set discharge current by lowering the discharge voltage between discharge cells by using DC converter. That is configured to be constantly fed.

Discharge Cell, Sterilization Water, Discharge Current Detector, Floating, Discharge Current

Description

A Sterilization Water Production Apparatus with the Uniformed Sterilization Performance}

The present invention is configured to install two or more discharge cells in the water in order to make the sterilization water, to generate a plasma discharge in the discharge cell installed to sterilize various kinds of bacteria present in the water by converting the general water into sterilization water. In order to maintain a certain level of discharge performance regardless of water composition and temperature, a current sensing unit is installed on one side of the signal line for supplying power to two or more discharge cells so as to measure current and measure the measured value and memory. Alternatively, if the measured current is small compared to the current value set in the circuit, use a DC-DC converter, a switching mode power supply, or an AC-DC converter to increase the discharge voltage between the discharge cells and, in the case of low DC-DC converter, switching It is configured to maintain the set discharge current by lowering the discharge voltage between discharge cells by using mode power supply or AC-DC converter. It is sterilized designed such that a constant discharge current supplied to the discharge cells servant relates to a generating device.

Conventionally, by supplying a constant voltage to a discharge cell located in the water, which is a load, it is generally unable to cope with the discharge conditions that depend on the composition and temperature of the water. In order to prevent the overheating or overheating of the power supply due to the current flow, a larger capacity must be used, and when the salinity is very low or the temperature is low, discharging does not occur smoothly, so that sterilization cannot be performed uniformly.

When used in the constant voltage method at the salinity and temperature of general tap water, the discharge current flowing between discharge cells at the highest salinity or temperature is called Imax (see FIG. 1), and the discharge current at the lowest salinity or temperature is Imin. (See Fig. 1), when Imax, excessive discharge current may flow, causing an abnormality in the power supply device. In Imin, discharging does not occur smoothly, so that sterilization cannot be performed smoothly. There is a problem that greatly falls.

The problem to be solved by the present invention is the discharge current supplied to the discharge cell to maintain a certain level of discharge performance regardless of the temperature and the component of the water supplied from the discharge cell installed in the water to obtain the sterilization water smoothly sterilization It is to provide a sterilizing water generator that can control the constant.

Another problem to be solved by the present invention is that the discharge current formed between the discharge cells contained in the water according to the state of the water is significantly different and there is a difference in sterilization performance, so the discharge voltage at the highest salinity or temperature of water The discharge current is reduced by reducing Vmin (see Fig. 2), and when the salinity or temperature is the lowest, the discharge voltage is supplied to Vmax (see Fig. 2) to maintain the discharge current constant regardless of the water's performance, resulting in uniform sterilization. To make it happen. That is, a current sensing unit is installed on one side of a signal line supplying power to two or more discharge cells so that a discharge cell serving as a load supplies a constant discharge current regardless of water composition and temperature to maintain a constant sterilization performance. Compared with the measured value and the current value set in the memory or circuit, the voltage supplied to the load is increased when the measured current is small and the voltage supplied to the load is lowered when the measured current is larger than the set current value. The discharging current supplied is maintained to be constant so that the sterilization performance is kept constant regardless of the water state.

Another problem to be solved by the present invention is to measure the current measured by the current sensing unit provided on one side of the signal line supplied to the discharge cell (load) in order to maintain a constant discharge current for the discharge supplied to the discharge cell installed in water The circuit is configured to boost or step down by feeding back to the power control unit in comparison with the reference value set in the memory or circuit of the power control unit, but using a step-down or step-up DC-DC converter with high efficiency to maintain a relatively high current. To reduce costs, reduce volume, and increase reliability.

Another problem to be solved by the present invention is to configure the circuit by connecting to the gate (Gare) and the source (Source) of the FET switching element by printing a drive circuit for operating the switch element (FET) of the DC-DC converter It is to increase the reliability of the device by securing the stability of the operation.

The problem solving means of the present invention is to install two or more discharge cells in the water to make the sterilizing water, and to generate a plasma discharge in the discharge cells installed to convert the general water into sterilized water to sterilize various kinds of bacteria present in the water. It is configured to measure the discharge current by installing a current sensing unit on one side of the signal line for supplying power to two or more discharge cells so that the discharge cell serving as a load can maintain a certain level of discharge performance regardless of water composition and temperature. When the measured discharge current is small compared with the measured value and the current value set in memory or circuit, the discharge current is increased by increasing the voltage supplied to the load, and when the measured current is greater than the set current, it is supplied to the load. By lowering the voltage to lower the discharge current, the discharge current supplied to the discharge cell is kept constant so that the sterilization performance is uniform. To implement a sterilizing water generating device.

Another problem solving means of the present invention is a power control unit for measuring the current measured in the current sensing unit provided on one side of the signal line supplied to the discharge cell (load) in order to maintain a constant discharge current for the discharge supplied to the discharge cell installed in the water The circuit is configured to boost or step down by comparing with the reference value set in the memory or circuit of the power control unit by feeding it back, and selecting one of DC-DC converter, switching mode power supply, and AC-DC converter. In order to realize energy saving, volume reduction and reliable sterilizing water generating device, step-down or step-up DC-DC converters are used to maintain relatively high current.

Another problem solving means of the present invention is to feed back the current measured by the current sensing unit provided on one side of the signal line for supplying power to the discharge cell to the power supply control unit to compare the reference value set in the memory or circuit of the power supply control unit to the discharge cell In order to increase or decrease the voltage in the power control unit to maintain a constant discharge current, one of a step-up and step-down type DC-DC converter, a step-up type DC-DC converter, and a step-down type DC-DC converter is selected and configured. It is to increase the reliability of the device by securing the stability of operation because the circuit is composed by connecting the gate and source of the FET switching element by printing the drive circuit for operating the switch element (FET) of the DC converter. .

The present invention maintains a constant level of discharge performance irrespective of the temperature and the components of water supplied from the discharge cell installed in the water to obtain sterilized water to control the current supplied to the discharge cell to be uniformly sterilized. There is an effect of providing a sterilizing water generator that can be.

Another effect of the present invention is that the discharge current formed between the discharge cells contained in the water according to the state of the water is significantly different and there is a difference in sterilization performance, so the discharge voltage at the highest salinity or temperature of water Vmin (Fig. 2) to reduce the discharge current, and when the salinity or temperature is the lowest, the discharge voltage is supplied to Vmax (see Fig. 2) to maintain the discharge current constant regardless of the water's performance to achieve uniform sterilization. have. That is, a current sensing unit is installed on one side of a signal line supplying power to two or more discharge cells so that a discharge cell serving as a load supplies a constant discharge current regardless of water composition and temperature to maintain a constant sterilization performance. Compared with the measured value and the current value set in the memory or circuit, the voltage supplied to the load is increased when the measured current is small and the voltage supplied to the load is lowered when the measured current is larger than the set current value. The discharging current supplied is maintained to be constant so that the sterilization performance is kept constant regardless of the water state.

Another effect of the present invention is to feed back the current measured by the current sensing unit installed on one side of the signal line supplied to the discharge cell (load) to maintain the discharge current for the discharge supplied to the discharge cell installed in the water to the power control unit. By constructing a circuit for boosting or stepping down by comparing with the reference value set in the memory or circuit of the power control unit, the energy saving by using a step-down or step-up DC-DC converter with high efficiency to maintain a relatively high current, It is to reduce the volume and increase the reliability.

Another effect of the present invention is the stability of the operation because the circuit is configured by connecting the gate (Gare) and the source (Source) of the FET switching element by driving the drive circuit for operating the switch element (FET) of the DC-DC converter To increase the reliability of the device.

Hereinafter, the present invention will be described in detail. The present invention is configured to install two or more discharge cells in the water in order to obtain the sterilization water, and to generate a plasma discharge in the discharge cells installed to convert the general water into sterilization water to sterilize various kinds of bacteria present in the water. In order to maintain a certain level of discharge performance regardless of water composition and temperature, a current sensing unit is installed on one side of a signal line that supplies power to two or more discharge cells, and the current is measured. If the measured current is small compared with the current value set in memory or circuit, increase the voltage supplied to the load to increase the discharge current supplied to the load, and if the measured current is greater than the set current, set the voltage supplied to the load. Lowers the discharge current supplied to the load to keep the discharge current supplied to the discharge cells constant so that the sterilization performance is uniform. Be to provide a production apparatus.

In addition, the present invention is fed back to the power control unit the current measured in the current sensing unit installed on one side of the signal line of the load terminal to compare the reference value set in the memory or circuit of the power control unit so that the discharge current supplied to the discharge cell is kept constant In order to increase or decrease the voltage in the power control unit, one of a step-up and step-down DC-DC converter, a step-up DC-DC converter, and a step-down DC-DC converter is selected and configured, and the switch element (FET) of the DC-DC converter Floating the drive circuit to operate the circuit is connected to the gate (Gate) and the source (Source) of the FET switching device to configure the circuit is configured to ensure the stability of the operation to increase the reliability of the device.

Hereinafter, the configuration and operation of the embodiments of the present invention with reference to the accompanying drawings, the configuration and operation of the present invention shown and described in the drawings will be described by at least one embodiment, whereby the present invention described above The technical idea and its core composition and operation are not limited.

Look at the drawings to facilitate understanding of the present invention. 1 is a diagram showing current-voltage characteristics of a power supply unit employed in a conventional discharge cell, and FIG. 2 is a diagram showing current-voltage characteristics of a power supply unit employed in the present invention. Figure 3 shows the configuration of the current sensing unit and the power control unit according to the present invention, Figure 4 shows another configuration of the current sensing unit and the power control unit according to the present invention. 5 is a configuration diagram of a power control unit using a step-down DC-DC converter according to the present invention, and FIG. 6 is a detailed circuit diagram of the step-down DC-DC converter in FIG. 5. 7 is a configuration diagram of a power control unit using a boost type DC-DC converter according to the present invention, and FIG. 8 shows a detailed circuit diagram of the boost type DC-DC converter in FIG. 9 is a block diagram of a power control unit using a boost and step-down DC-DC converter according to the present invention, Figure 10 is a block diagram of a power control unit using an AC-DC converter according to the present invention. A specific embodiment according to the present invention will be described.

EXAMPLES

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described with reference to the drawings. FIG. 1 shows current-voltage characteristics of a power supply unit employed in a conventional discharge cell, and shows discharge current generated when unilaterally supplying a constant voltage to a discharge cell as a load. More specifically, in Fig. 1, the salinity and / or the discharge current flowing between the discharge cells when the salinity and / or the temperature of the general tap water is the highest when used in the constant voltage method is called Imax (Fig. 1), and the salinity and / or the temperature is the most. When the discharge current at low is referred to as Imin (Fig. 1), at Imax, excessive discharge current may be generated and abnormalities may occur due to overheating of the power supply, and at Imin, since discharge does not occur smoothly, sterilization is not performed smoothly. There is a problem that the reliability and durability of the sterilizing water generator is greatly reduced.

The present invention is to solve the problems of the prior art is designed and manufactured so that the discharge current flowing in the discharge cell is kept constant regardless of the state of the water. FIG. 2 is a diagram showing the current-voltage characteristics of the power supply unit employed in the present invention, wherein the current-voltage for designing the discharge current generated between the discharge cells in the water can be kept constant regardless of the state of the water. It is characteristic. The discharge currents formed between the discharge cells contained in the water are remarkably different depending on the state of the water. That is, since the discharge current is the largest when the salinity or the temperature of the water is the highest, the discharge voltage is reduced by Vmin (Fig. 2). The discharge current is reduced and the discharge current is the smallest at the lowest salinity or temperature, so that the discharge voltage is supplied to Vmax (Fig. 2) so that the discharge current is kept constant irrespective of the state of water so that uniform sterilization is achieved. By preventing overheating of the power control unit, the reliability and durability of the device can be improved.

Figure 3 is installed two or more discharge cells in the water in order to obtain the sterilizing water in accordance with the present invention, by generating a plasma discharge between the discharge cells 11 installed in the water to convert the general water into sterilized water to water It is an embodiment configured to sterilize various kinds of bacteria present, and two or more discharges to configure a discharge cell 11 serving as a load so that a certain level of discharge performance can be maintained regardless of water composition and temperature. In order to measure the current supplied to the discharge cell 11 by installing the discharge current sensing unit 12 on one side of the signal line supplied to the cell 11, the voltage across the discharge current sensing resistor 18 is measured and the feedback circuit ( 17) is inputted to the power control unit 13, the input voltage is divided by the value of the discharge current sensing resistor 18 to calculate the discharge current, and the calculated discharge current value and the reference current value set in the memory circuit are measured. If the measured current value is small by comparing the currents, increase the voltage supplied to the load in the DC-DC converter built in the power control unit in proportion to the magnitude of the difference to maintain the reference value set in the memory. If the measured current is larger than the set reference current, the DC-DC converter built in the power control part lowers the voltage supplied to the load and discharges it to the set reference value supplied to the load in proportion to the magnitude of the difference value. It is possible to supply a sterilizing water generating device having a uniform sterilization performance regardless of the state of water by designing and manufacturing so that the discharge current supplied to the discharge cell is kept constant by lowering the current.

4 is provided with two or more discharge cells 11 installed in the water to supply the sterilizing water according to the present invention, by generating a plasma discharge in the discharge cells 11 installed in the water to convert the general matter into sterilized water This is another embodiment configured to sterilize various kinds of bacteria present in the water, and as shown in FIG. 3, the discharge cell 11 serving as a load may maintain a certain level of discharge performance regardless of water composition and temperature. In order to measure the discharge current supplied to the discharge cell 11 by installing a discharge current sensing unit 12 on one side of the signal line for supplying power to two or more discharge cells 11 so as to measure the discharge current across the discharge current sensing resistor 18. The voltage applied is measured and configured to be input to one input terminal of an operational amplifier (25).

In FIG. 4, the other terminal of the operational amplifier inputs a reference voltage, and when the voltage measured by the discharge current detector 12 is smaller than the reference voltage, the voltage supplied to the discharge cell 11 is proportional to the signal size of the difference. Therefore, increase the voltage in the DC-DC converter to supply the load, increase the current supplied to the load by the supplied high voltage, and if the measured voltage is greater than the reference voltage, change the voltage supplied to the load to the signal size of the difference. In proportion to the DC-DC converter, the voltage is lowered and supplied to the load, and the discharge current is lowered by the supplied low voltage, so that the discharge current supplied to the discharge cell is kept constant.

The measured value measured by the discharge current detection unit 12 is a voltage across the discharge current detection resistor, or the reason called the discharge current detection unit 12 is because the discharge current, which is an important factor in the present invention, cannot be directly measured. This is because the invention measures the voltage between both ends of the current sense resistor, divides it by the discharge current sense resistor, and ultimately measures the discharge current. Another method of measuring the discharge current is to measure by using a CT current sensor, by measuring the magnitude of the magnetic force induced by the magnitude of the discharge current supplied to the discharge cell in the accuracy using the discharge current detection resistor It may be lower than measuring current.

In Fig. 4, a circuit stabilizing resistor 23 and a circuit stabilizing capacitor 24 are provided between the reference voltage input terminal and the output terminal input to the op amp to stabilize the circuit by correcting the phase of the signal. Resistor 22 for reference voltage control and circuit protection is installed at the input terminal to achieve uniform sterilization performance regardless of the state of water having excellent reliability and durability.

A memory equipped with a circuit or program for comparing the measured value measured by the discharge current detection unit 12 with a set value is called a comparison unit of discharge current, and the discharge current comparison unit according to the present invention uses an op amp, a resistor, a capacitor, and the like. The discharge current is calculated by dividing the voltage inputted from the discharge current sensing unit 12 by the discharge current detection resistor 18 and calculating the discharge current value and the set current value stored in the memory. Therefore, a control program designed and designed to increase or decrease the voltage supplied to the discharge cell in proportion to the difference value can be mounted in the memory so that it can be processed by the microprocessor.

The discharge current detection unit 12 installs a discharge current detection resistor 18 on one side of the signal line supplied to the discharge cell 11, measures the voltage across the discharge current detection resistor 18, and measures the measured voltage as the discharge current. The discharge current is measured by dividing the value of the sensing resistor 18 or the CT current sensor is inserted into the signal line supplied to the discharge cell 11 to measure the magnetic force induced by the discharge current flowing through the signal line. can do.

FIG. 5 is a block diagram showing the configuration of a power control unit using a step-down DC-DC converter according to the present invention, and FIG. 6 is a detailed circuit diagram of the step-down DC-DC converter in FIG. More specifically, FIG. 5 is provided with a discharge current detection unit on one side of a power line connected to the discharge cell so that a constant discharge current is supplied from the discharge cell located in the water, and feedback the voltage measured by the discharge current detection unit to the power control unit 13. If the measured voltage is higher than the reference voltage as the input voltage, the discharge current (measured voltage / discharge current sensing resistance value) is supplied to the load, so the voltage is reduced to supply the current to the load constantly. In the DC-DC converter circuit, the set discharge current is lowered to maintain the supply voltage, and if the measured voltage is smaller than the reference voltage, the discharge current (measured voltage / discharge current sensing resistance value) supplied to the load is small. A voltage that can maintain the discharge current set in the step-down type DC-DC converter circuit to supply the discharge current supplied to the cell constantly. Increasing a supply.

Fig. 5 converts an AC commercial power into a DC voltage larger than the maximum value of the discharge voltage with the AC-DC converter, and drives the discharge cell with the switching or linear step-down DC-DC converter. Supply it by converting it into a power source. At this time, it detects the discharge current flowing to the discharge cell and feeds it back to the DC-DC converter or the power controller to convert the voltage supplied to the discharge cell by comparing with a set reference value. The discharging current supplied is kept constant so that a uniform sterilization water can be obtained regardless of the state of water.

6 is a conceptual diagram of a switching type step-down DC-DC converter designed and manufactured using a switching element such as a FET. RL in FIG. 6 is an internal equivalent resistance included in the coil element L, and RC in FIG. 6 is an internal equivalent resistance of the capacitor C. In FIG. R in FIG. 6 corresponds to a load resistance corresponding to the discharge cell. In order to detect the discharge current supplied to the discharge cell and to supply a constant discharge current to the discharge cell, a discharge current detector is installed on one side of the power line connected to the discharge cell, and the discharge current detected by the discharge current detector (measured voltage / discharge). When the discharge current measured based on the current sensing resistance is larger than the set reference current value, the driving circuit of the DC-DC converter controls the duty ratio (Duty Ratio, On / Off ratio) of the PWM signal, The discharge current is lowered by lowering the voltage supplied to the discharge cell by supplying to the gate terminal of the FET Q1, and when the measured current is smaller than the set reference current value, the PWM in the driving circuit of the DC-DC converter The duty ratio of the signal (Duty Ratio, On / Off ratio) is controlled and supplied to the gate terminal of the switching element FET (Q1) to increase the voltage supplied to the discharge cell to increase the discharge current. Maintain a constant discharge current to be supplied to the discharge cell to be independent of I achieve a uniform sterilization and water conditions.

In the driving circuit of the step-down DC-DC converter, a duty ratio (Dr) of the PWM signal is controlled in proportion to the difference between the current measured by the discharge current detector and the set reference current value, thereby providing a voltage to the discharge cell. Supply a signal terminal from a driving circuit to a gate terminal and a source terminal, and when the switching element Q1 is an n-MOSFET, a signal supplied to the gate terminal If it is 1 (High), it is turned on and if the signal supplied to the gate terminal is 0 (Low), it is controlled to be off.In the case of implementing a switching device as a p-MOSFET, the gate is turned on or off. The driving circuit is supplied by driving the signal (0, 1) in reverse, and the driving circuit is separated from the circuit of the switching element and floated to form a circuit so that the circuit can be stably operated. Configuration and reliability can be improved.

The output voltage of the step-down DC-DC converter is shown in Equation (1).

Vo = Vi * Dr (1)

In Equation (1), since the duty ratio has a value between 0 and 1, the output voltage Vo is always configured to be lower than the input voltage Vi. Therefore, the input voltage Vi in the step-down DC-DC converter method must be larger than the output voltage Vo range to be output.

FIG. 7 is a block diagram illustrating a configuration of a power control unit using a boost type DC-DC converter according to the present invention, and FIG. 8 shows a specific circuit diagram of the boost type DC-DC converter according to the present invention. Figure 7 converts the AC commercial power into a DC voltage smaller than the minimum value of the discharge voltage by the AC-DC converter, and converts the converted DC into the driving power of the discharge cell by the boosted DC-DC converter, and supplies it to the discharge cell. The discharge current is sensed and fed back to the DC-DC converter or the power controller to control the voltage supplied to the discharge cell in comparison with the reference value set in the power controller so that the discharge current is kept constant.

8 is a conceptual diagram of a switching type boost type DC-DC converter designed and manufactured using a switching element such as a FET. RL in FIG. 8 is an internal equivalent resistor included in the coil element L, and RC in FIG. 8 is an internal equivalent resistance of the capacitor C. In FIG. R in FIG. 8 corresponds to a load resistance corresponding to the discharge cell. In order to detect the discharge current supplied to the discharge cell and supply a constant discharge current to the discharge cell, a discharge current detector is installed on one side of the power line connected to the discharge cell, and the current detected by the discharge current detector (measured voltage / discharge current) If the measured discharge current is larger than the set current value, the duty cycle of the PWM signal (Dr, Duty Ratio, On / Off ratio) is controlled in the driving circuit of the DC-DC converter. The discharge current is lowered by lowering the voltage supplied to the discharge cell by supplying it to the gate terminal of the FET Q1, and when the measured discharge current is smaller than the set current value, the PWM is driven by the driving circuit of the DC-DC converter. The duty ratio of the signal is controlled to be supplied to the gate terminal of the switching element FET Q1 to increase the voltage supplied to the discharge cell, to increase the discharge current, and to be supplied to the discharge cell. It is to supply uniform discharge current so that uniform sterilization water can be obtained regardless of the state of water.

In the driving circuit of the boost type DC-DC converter, the voltage is supplied by controlling the duty ratio Dr of the PWM signal in proportion to the difference between the discharge current measured by the discharge current detector and the set current. A signal terminal from a driving circuit is connected to a gate terminal and a source terminal. When the switching element Q1 is an n-MOSFET, the signal supplied to the gate terminal is 1 (high). It is configured to be on when it is on and to be turned off when the signal supplied to the gate terminal is 0 (Low). The driving circuit is separated from the circuit of the switching element and floated to form a circuit. The circuit can be configured to operate stably to increase the durability and reliability of the sterilizing water generator.

The output voltage of the boost type DC-DC converter is shown in Equation (2).

Vo = Vi / (1-Dr) (2)

In Equation (2), since the duty ratio has a value between 0 and 1, the output voltage Vo is configured to be always kept higher than the input voltage Vi. Therefore, the input voltage Vi in the boost type DC-DC converter method must be smaller than the range of the output voltage Vo to be output.

9 is a block diagram of a power control unit implemented by using the step-down and step-up DC-DC converter circuits at the same time. FIG. 9 is a discharge current sensing unit for measuring a discharge current flowing through a discharge cell, and a discharge current sensing unit. The discharge current is fed back to the power supply control unit, and the discharge is supplied to the discharge cell based on the difference between the discharge current (measurement voltage / discharge current sense resistor) input to the power supply control unit through the feedback circuit and the discharge current set in the power supply control unit. The current is controlled by the step-down and step-up DC-DC converters so that the current supplied to the discharge cells is kept constant.

FIG. 10 is a block diagram of a power control unit implemented using the AC-DC converter (SMPS) circuit simultaneously. FIG. 10 is a discharge current sensing unit for measuring a discharge current flowing to a discharge cell. Feedback the discharge current measured by the power supply to the power supply control unit, and control the discharge current supplied to the discharge cell based on the difference between the discharge current and the set discharge current input through the feedback circuit to the discharge cell by controlling the AC-DC converter The discharge current can be configured to be kept constant.

The structure of the discharge cell of the sterilizing water generating device according to the present invention can be designed and adopted in various shapes.

The present invention is to provide two or more discharge cells installed in the water to obtain sterilized water, and to generate a plasma discharge in the discharge cells installed to convert the general water into sterilized water to sterilize various kinds of bacteria present in the water Measure the discharge current by installing a current sensing unit on one side of the signal line for supplying power to two or more discharge cells so that the discharge cell serving as a load can maintain a certain level of discharge performance regardless of water composition and temperature. If the measured discharge current is small compared to the set value and the current value set in memory or circuit, increase the discharge current supplied to the load by increasing the voltage supplied to the load, and if the measured current is greater than the set current, Lower the supply voltage to lower the discharge current supplied to the load so that the discharge current supplied to the discharge cell is kept constant. It may implement a number of the produced sterilization performance uniform sterilization apparatus for generating very high INDUSTRIAL APPLICABILITY.

1 is a diagram showing current-voltage characteristics of a power supply unit employed in a conventional discharge cell.

2 is a diagram showing current-voltage characteristics of a power supply unit employed in the present invention.

3 is a block diagram of a current sensing unit and a power control unit according to the present invention

4 is a configuration diagram of another current sensing unit and a power control unit according to the present invention;

5 is a block diagram of a power control unit using a step-down DC-DC converter according to the present invention

6; 5 is a detailed circuit diagram of a step-down DC-DC converter

7 is a block diagram of a power control unit using a boost type DC-DC converter according to the present invention

8 is a detailed circuit diagram of a boosted DC-DC converter in FIG.

9 is a block diagram of a power control unit using a step-up and step-down DC-DC converter according to the present invention

10 is a block diagram of a power control unit using an AC-DC converter according to the present invention

<Brief Description of Drawings>

11; Discharge cells 12; Discharge current detector

13; A power control unit 14; DC-DC converter

15; Microprocessor 16; Memory

17; Feedback circuit 18; Discharge Current Sense Resistor

21; Reference voltage

22; Reference voltage control or circuit protection resistor

23; Circuit stability resistor 24; Circuit stability capacitor

25; Opi amp

Claims (10)

In the sterilizing water generator, A discharge cell installed in water to generate sterile water; A discharge current sensing unit including a discharge current sensing resistor or a CT current sensing sensor at one side of a signal line to measure the discharge current supplied to the discharge cell; A feedback circuit for feeding back a discharge current value measured by the discharge current detector to a power supply controller; A comparison unit comparing the discharge current value measured by the discharge current detection unit with a set reference value set to obtain a uniform sterilization water; And As a result of the comparison by the comparing unit, when the measured value measured by the discharge current sensing unit is larger than the set value, the voltage supplied to the discharge cell is increased, and when the measured value is smaller than the set value, the voltage supplied to the discharge cell is decreased by A sterilizing water generating device having a uniform sterilization performance having a power control unit for supplying a current to the discharge cell to maintain a constant discharge current supplied to the discharge cell. delete The method according to claim 1, The comparator comprises a circuit which compares the measured value measured by the discharge current detector with the set reference value by configuring an op amp, a resistor, and a capacitor to work with the power control unit, or the measured discharge current value and the set reference value stored in the memory. Sterilizing water generating device having a uniform sterilization performance, characterized in that consisting of a microprocessor for executing the control program and a memory equipped with a control program for controlling the discharge current by comparing the comparison. The method according to claim 1, The power control unit feeds back the discharge current value measured by the discharge current detection unit to the power control unit, and compares the measured and inputted feedback value with the set reference current value to supply a voltage to the discharge cell to maintain a constant discharge current Sterilization with uniform sterilization performance selected from step-down and step-up DC-DC converters, step-down DC-DC converters, step-up DC-DC converters and AC-DC converters to increase or decrease Number generating device. The method according to claim 4, The step-down type DC-DC converter detects the discharge current supplied to the discharge cell and installs a discharge current detector on one side of a power line connected to the discharge cell in order to supply a constant discharge current to the discharge cell, and detected by the discharge current detector. If the discharge current measured based on the current is larger or smaller than the set reference current value, the driving circuit of the DC-DC converter controls the duty ratio (Dr) of the PWM signal to drive the switching element to lower the voltage supplied to the discharge cell. Supply or discharge a constant discharge current to the discharge cell, and the duty ratio is a value between 0 and 1, so that the output voltage (Vo) supplied to the discharge cell is controlled to be lower than the input voltage (Vi). Sterilizing water generating device having a. The method according to claim 4, The boost type DC-DC converter detects a discharge current supplied to a discharge cell and installs a discharge current detector on one side of a power line connected to the discharge cell to supply a constant discharge current to the discharge cell. If the measured current based on the current is larger or smaller than the set reference current value, the driving circuit of the DC-DC converter controls the duty ratio (Dr) of the PWM signal to drive the switching element to lower the voltage supplied to the discharge cell or Supply a constant discharge current to the discharge cell, and the duty ratio is a value between 0 and 1, so that the output voltage (Vo) supplied to the discharge cell is controlled to be higher than the input voltage (Vi). Sterilization water generating device provided. The method according to claim 4, The step-down and step-up DC-DC converter detects the current supplied to the discharge cell and installs a discharge current detector on one side of the power line connected to the discharge cell to supply a constant discharge current to the discharge cell, and detects the discharge current. If the discharge current measured based on the discharge current is larger or smaller than the set current value, the driving circuit of the DC-DC converter controls the duty ratio (Dr) of the PWM signal to drive the switching element to supply the voltage supplied to the discharge cell. Sterilizing water generating device having a uniform sterilization performance, characterized in that controlled to maintain a constant discharge current supplied to the discharge cell by lowering or raising. The method according to any one of claims 5 to 7, The switching element for controlling the duty ratio of the PWM signal is composed of a FET, and separated from the circuit of the switching element for a stable supply of the switching signal supplied between the gate terminal and the source terminal of the FET to form a circuit Sterilizing water generating device having a uniform sterilization performance. delete The method of claim 3, The comparator composed of the op amp, the resistor and the capacitor is connected to the discharge current detection unit, one terminal of the two input terminals of the op amp, the other terminal is connected to the set reference value input terminal, the set reference value input Sterilizing water generating device with uniform sterilization performance, characterized in that the circuit is composed by connecting the circuit stabilizing resistor 23 and the circuit stabilizing capacitor 24 to stabilize the circuit by correcting the phase of the signal between the terminal and the output terminal .

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