A multi-winding single-stage multi-input boost type high-frequency link's inverter with simultaneous/time-sharing power supplies, having the circuit structure formed by connecting a plurality of mutually isolated high-frequency inverter circuits having an input filter and an energy storage inductor, a common output cycloconverter and filter circuit by a multi-input single-output high-frequency transformer. Each input end of the multi-input single-output high-frequency transformer is connected in one-to-one correspondence to the output end of each high-frequency inverter circuit. The output end of the multi-input single-output high-frequency transformer is connected to the input end of the output cycloconverter and filter circuit. The inverter has the following characteristics: multiple input sources are connected to a common ground or a non-common ground. The multiple input sources supply power to load in a simultaneous/time-sharing manner. The output and input high-frequency isolation is performed. The output cycloconverter and filter circuit is shared.

A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.

A voltage compensation device according to an embodiment includes a power converter, series transformers and a controller. The controller includes a first coordinate transformation circuit, a first arithmetic part, a second coordinate transformation circuit and a second arithmetic part. The first coordinate transformation circuit generates a first output and a second output that are mutually-orthogonal by performing a rotating coordinate transformation of the normal-phase components of a three phase alternate current. The first arithmetic part calculates a system voltage based on a direct current component of the first output and generates a first compensation amount corresponding to a compensation voltage set to compensate a shift of the system voltage from a preset target voltage. The second coordinate transformation circuit generates a third output and a fourth output that are mutually-orthogonal by performing a rotating coordinate transformation of reverse-phase components of the three-phase alternating current. The second arithmetic part generates second compensation amount of a reverse-phase component of the system voltage based on a direct current component of the third output and a direct current component of the fourth output. The first arithmetic part generates the first compensation amount to cause the compensation voltage when the system voltage is within a prescribed range to be less than the compensation voltage when the system voltage is outside the prescribed range.

A portable voltage converter comprises a casing, an AC input and an AC output, and a voltage conversion circuitry; the AC input is connected to the voltage conversion circuitry, the input voltage is convened by the voltage conversion circuitry and connected to the AC output; the voltage conversion circuitry includes a low power voltage conversion circuitry and a high power voltage conversion circuitry; the low power voltage conversion circuitry has a core transformer, the operating current circuitry includes a current overload protector, the voltage waveform after voltage conversion is called the first waveform. The high power voltage conversion circuitry has a TRIAC, the voltage waveform after voltage conversion is called the second waveform. When the required power for the connected external load is high, the current overload protector reduces the output of the first waveform, so that the second waveform is actuated and output.

A portable voltage converter comprises a casing, an AC input and an AC output, and a voltage conversion circuitry; the AC input is connected to the voltage conversion circuitry, the input voltage is convened by the voltage conversion circuitry and connected to the AC output; the voltage conversion circuitry includes a low power voltage conversion circuitry and a high power voltage conversion circuitry; the low power voltage conversion circuitry has a core transformer, the operating current circuitry includes a current overload protector, the voltage waveform after voltage conversion is called the first waveform. The high power voltage conversion circuitry has a TRIAC, the voltage waveform after voltage conversion is called the second waveform. When the required power for the connected external load is high, the current overload protector reduces the output of the first waveform, so that the second waveform is actuated and output.

The present invention allows individual control of an output voltage of a main transformer and an output voltage of a teaser transformer while utilizing output characteristics of the respective transformer when a Scott connected transformer has control equipment arranged on the input side thereof, including first control equipment arranged in one of two phases of the main transformer on the input side in order to control a voltage or a current and second control equipment arranged in one end of a primary coil of the teaser transformer on the input side in order to control a voltage or a current, the control equipment controlling an output voltage of the main transformer and an output voltage of the teaser transformer individually.

A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.

A method includes generating, external to a radio frequency (RF) environment and based on a process recipe, a first signal and a second signal. The method further includes converting the first signal into an alternative signal and transmitting, over a non-conductive communication link, the alternative signal to a converter within the RF environment within a processing chamber of a substrate processing system. The method further includes converting the alternative signal into a third signal by the converter inside the RF environment within the processing chamber. The method further includes controlling a first plurality of elements disposed within the RF environment within the processing chamber via one or more first devices disposed within the RF environment within the processing chamber using the third signal and controlling a second plurality of elements of the substrate processing system via one or more second devices of the substrate processing system using the second signal.

A load identification system includes an AC-power input unit, a load, a zero-crossing detector, a microcontroller, a first and a second current phase detectors. The zero-crossing detector is configured to output a zero-voltage pulse signal when a zero-crossing signal of the AC-power input unit is detected. The first current phase detector detects a current flowing through the load to output a first voltage signal. When the current flows along a first direction, the first voltage signal is at a high level. The second current phase detector is configured to detect the current flowing through the load to output a second voltage signal. When the current flows along a second direction, the second voltage signal is at a high level. The microcontroller is configured to receive and identify the type of the load according to the zero-voltage pulse signal, the first and the second voltage signals.

An electronically controlled transformer, which is used for AC power supply, cutting off the sinusoidal waveform of voltage to change the RMS voltage. The electronically controlled transformer comprises a casing, socket holes and socket tabs for output and a circuit board. The circuit board is provided with an input terminal, a silicon controlled rectifier or field-effect transistor, an output terminal and a control module. The live wire and neutral wire of input terminal are connected by a rectifier or bridge rectifier. The positive output of rectifier or bridge rectifier is connected to a voltage regulation module. The voltage regulation module is connected to a control module. The control module comprises a control IC and a trigger and driving part. The trigger and driving part has an optical coupler. The switching pin of control IC is connected to the transmitting terminal of optical coupler.