A method is disclosed for balancing loss energy distribution in a drive circuit which drives a resonant load. The method includes the steps of using a plurality of switches to modulate a flow of electrical energy to a resonant load, and providing each of the plurality of switches with a diode connected in anti-parallel to its respective switch. The method further includes generating a voltage-modulated waveform across the resonant load which results in a first amount of loss energy distributed equally among the plurality of switches, and a second amount of loss energy distributed equally among the diodes.

Six gas generator units each including a gas generator, one unit of multiple AC power supply section that supplies six high frequency AC voltages to the six gas generator units, one unit of gas control section that controls raw material gas and output gas in the six gas generator units, and one unit of control/operation section constituting section that performs an AC power control operation to allow six high frequency AC voltages having desired electric energy, independent from each other, to be supplied. The six gas generator units, one unit of multiple AC power supply section, one unit of gas control section, and one unit of control/operation section constituting section are integrally provided.

A method is provided for treating contaminants in the vapors and shallow soils in an area below a slab of a building such that the slab is located above a first layer of gravel and a second layer of soil. The method includes providing an ozone unit, a riser pipe, and tubing. An area below the slab where contaminants need treated is first detected and then a hole is formed in the slab to define an injection location. The method also includes positioning the riser pipe in the hole at the injection location and coupling the tubing between the ozone unit and the riser pipe. The method further includes dispensing ozone from the ozone unit to flow through the tubing and the riser pipe to treat contaminants in the vapors and shallow soils in the area below the slab.

An apparatus includes a first production line configured to generate aqueous ozone with a first ozone concentration. The apparatus also includes an additional production line configured to generate aqueous ozone with an additional ozone concentration. The first production line and the additional production line include a flow switch, where fluid is configured to flow through the flow switch. The first production line and the additional production line include an ozone generator, where the ozone generator is configured to generate ozone when the fluid flows through the flow switch. The first production line and the additional production line include a fitting coupled to the flow switch and the ozone generator, where the fitting is configured to combine the generated ozone and the fluid to generate the aqueous ozone. The first production line is configured to generate aqueous ozone independently from the additional production line.

In a discharge generator, a control unit switchably performs a continuous mode and a burst mode based on determination of whether target output power is higher than discharge start power. The burst mode alternately performs a discharge mode and a non-discharge mode. The control unit causes a burst ratio to be set to a value expressed by the following equation b=Po*/P.sub.fs0 where b represents the burst ratio, Po* represents the target output power, and P.sub.fs0 represents the discharge start power. The burst ratio is defined as a ratio of the discharge period to a burst period. The burst period is the sum of the discharge period and the stop period. The control unit causes, in the burst mode, the switch circuit to output, as the output power, the discharge start power during the discharge period.

An ozone generator includes at least four independent ozone generation control channels that energize at least four independent ozone generation plates. The at least four independent ozone generation control channels allow for multiple modes of operation, including sterilization, disinfecting, and managing, in addition to interleaved operation, which significantly extends the useful life of the individual ozone generation plates. The ozone generator is placed in a preexisting conditioned airflow that enters a conditioned airspace enclosed by a container. Being placed in the preexisting conditioned airflow, the ozone generator does not require a fan or other air movement device to actively transport ozone-enriched air or oxygen through the ozone generator.

An apparatus includes a first production line configured to generate aqueous ozone with a first ozone concentration. The apparatus also includes an additional production line configured to generate aqueous ozone with an additional ozone concentration. The first production line and the additional production line include a flow switch, where fluid is configured to flow through the flow switch. The first production line and the additional production line include an ozone generator, where the ozone generator is configured to generate ozone when the fluid flows through the flow switch. The first production line and the additional production line include a fitting coupled to the flow switch and the ozone generator, where the fitting is configured to combine the generated ozone and the fluid to generate the aqueous ozone. The first production line is configured to generate aqueous ozone independently from the additional production line.

An ozone generator unit includes a housing with a first half having a first recess and a second half having a second recess. The ozone generator unit further includes an inlet and an outlet in the housing, a first dielectric disc arranged within the first recess in contact with an inner surface of the first half, a second dielectric disc arranged within the second recess in contact with an inner surface of the second half, and a high voltage electrode, having a gas passage, arranged between the first and second dielectric discs. The high voltage electrode is spaced apart from the first and second dielectric discs using a first spacer and a second spacer to constitute a first gas chamber and a second gas chamber on either side of the high voltage electrode.

Portable ozone generators and methods of use. For example, a hand-held portable ozone generator has: a housing defining an air inlet, an air outlet, and an air channel communicating between the air inlet and the air outlet; a battery; an ozone generator configured to output, during operation, ozone into the air channel at a non-zero rate that is equal to or below 50 mg/hour; and a controller connected to send control signals to the ozone generator in response to user input. In other cases, a plank or slab shaped portable ozone generator is disclosed, with an air inlet and an air outlet located in respective opposed face plates. In one case the unit has no defined base, and every face and side wall of the device forms a ground engaging base, and the unit functions properly regardless of what face or side wall the unit contacts the ground or a horizontal ground surface with.

In a discharge generator, a control unit switchably performs a continuous mode and a burst mode based on determination of whether target output power is higher than discharge start power. The burst mode alternately performs a discharge mode and a non-discharge mode. The control unit causes a burst ratio to be set to a value expressed by the following equation b=P.sub.O*/P.sub.fs0 where b represents the burst ratio, P.sub.O* represents the target output power, and P.sub.fs0represents the discharge start power. The burst ratio is defined as a ratio of the discharge period to a burst period. The burst period is the sum of the discharge period and the stop period. The control unit causes, in the burst mode, the switch circuit to output, as the output power, the discharge start power during the discharge period.