An inverter device has a three-phase inverter for converting DC electric power into AC power for supplement to an AC electric motor and a control device operatively associated therewith, and the control device includes a phase current detection section for outputting a phase current waveform based on a DC input current and an operational processor section for performing operational processing for control of said inverter device based on the phase current waveform. Thereby, the inverter device ca...

An integrated circuit inverter controller that includes at least one input pin that is configured to receive two or more input signals. The input pin may be multiplexed so that the appropriate input signal is directed to appropriate circuitry within the controller to support two or more functions of the controller. Alternatively, the input signals may be present in differing time periods so that a single pin can support two or more functions. Multifunctional or multitasked pins reduce the overal...

An inverter apparatus for converting a DC power converted from an input AC power to an output AC power of a variable frequency and a variable electric power to drive an induction motor at a variable speed. The inverter apparatus includes a rectifying unit, a filter capacitor, an inverter unit having an input connected across the filter capacitor, an input current detector and a gate circuitry for driving the inverter unit. An excitation current detection unit detects an excitation current of the...

An integrated circuit inverter controller that includes at least one input pin that is configured to receive two or more input signals. The input pin may be multiplexed so that the appropriate input signal is directed to appropriate circuitry within the controller to support two or more functions of the controller. Alternatively, the input signals may be present in differing time periods so that a single pin can support two or more functions. Multifunctional or multitasked pins reduce the overal...

A device for inverting gloves, especially industrial-heavy-duty-lined-rubber gloves, wherein a shallow hole exists in the center of the top of the base (1) wherein the pushrod fits and the tube (3), wherein the length thereof is shorter than the pushrod (2) and provides for an inside diameter that is sufficient to accommodate a pushrod (2) freely without hindrance. Inserting the glove appendage tip into the tube (3), thereafter introducing the tube (3) conversely into the glove appendage socket....

An inverter circuit is disclosed that prevents flow of a large feedthrough current. The inverter circuit includes depletion type MOS transistor combined with a resistor to impose a current limitation when a feedthrough current flows.

The inverter device includes an inverse conversion circuit which converts a supplied direct-current electricity into a alternating-current electricity having a predetermined frequency, and is designed to drive a motor for a rotary machine, at various speeds, in which the switching control of the inverse conversion circuit is performed by a digital processor. In this inverter device, a timer interrupt process having an independent constant processing cycle which is not directly related to the pro...

An inverter device includes a series circuit having first and second switch units connected in series and a pulse signal generator for generating a pulse signal, and supplies an alternating voltage to a load by alternately driving the first and second switch units to be turned on and off in accordance with the pulse signal while a direct voltage is applied to the series circuit. The inverter device further includes: a first driving controller for generating a first driving signal and for driving...

A converter system, in particular for supplying electrical drives with direct current or DC voltage, or with alternating current or AC voltage, at a specifically matched frequency or for dynamic power factor correction. The converter system has at least one converter which has power semiconductors which can be switched on and/or off. It is possible to influence the current flow through the power semiconductors by adjusting the times at which the power semiconductors are switched on and off. It i...

An inverter device capable of smoothly driving an alternating current synchronous motor of large capacity and high-speed rotation is provided. The inverter device includes a power rectification main circuit for converting alternating current power into direct current power and a PWM control inverse transformation main circuit. A transformer raises output terminal of the alternating current power of the inverse transformation main circuit to drive an alternating current synchronous motor. The alt...