A CMOS inverter capable of operating at low voltages is provided. The gate of a p-channel MOS transistor and the gate of an n-channel MOS transistor are AC coupled to an input terminal via first and second capacitors, respectively. Signals whose amplitude centers are optimized according to the threshold voltages of the p- and n-channel MOS transistors by bias voltages from first and second variable voltage sources, respectively, are supplied to the gates of these MOS transistors. In consequence,...

A semiconductor device 1000 may include first and second switch elements 1000A and 1000B formed in first and second element forming regions 16a and 16b of a SOI layer 10a, respectively. The first and second switch elements 1000A and 1000B form a BiCMOS inverter circuit, and each includes a field effect transistor and a bi-polar transistor. A first p-type body region 50a is electrically connected to an n-type source region 120. The first p-type body region 50a is electrically connected to a first...

Stacks of flexible sheets, such as printed slotted and scored corrugated paperboard box blanks, are inverted during travel along a sheet stacker. A plurality of sheet inverter fingers, each with a friction enhancing surface on a free end, are interdigitated between the belts of the sheet stacker. These fingers engage the leading ends of the stacks and invert the stacks during continued forward travel of the stacks.

An inverter circuit includes an input end receiving an input signal having a low level and a high level, wherein the low level is greater than zero, a P-channel metal-oxide-semiconductor (PMOS) transistor having a gate electrode coupled to the input end and a source electrode coupled to a voltage source, a first N-channel metal-oxide-semiconductor (NMOS) transistor having a drain electrode coupled to a drain electrode of the PMOS transistor to serve as an output end, and a source electrode there...

Induction voltage command Em* is obtained from inverter's primary frequency command .omega.1* and torque boost voltage commander produces torque boost voltage command .DELTA.Vz* in accordance with .omega.1* while integrator produces reference phase command .theta.d*. uvw/dq converter detects motor excitation current Id (equivalent of no-load current). Next, deviation of excitation current limitation level command Idmax* and detected Id is inputted to limiter processing unit to produce torque boo...

Provided is an inverter apparatus comprising a three-phase inverter section having a three-phase bridge rectifier for converting three-phase AC power into DC power and a three-phase bridge inverter for converting the DC power converted by the three-phase bridge rectifier into three-phase AC power, 3n (n is a natural number) single-phase inverters, of which n (n is a natural number) single-phase inverters are connected in series with phase outputs of the three-phase inverter section to convert th...

An inverter circuit to reduce a resistor for overcurrent detection and decrease the number of filters in an inverter circuit for supplying polyphase power. Transistors each having a current detection terminal and a protective diode for regenerative current are adopted as switching elements on an "L" side and their current detection terminals are connected in common to a resistor. Therefore, a voltage drop caused by a current flowing in the resistor becomes larger when an overcurrent flows in at ...

A motor (4) comprises a stator which generates a rotating magnetic field according to the energization of plural groups (A, B) of coils, and a rotor rotated by the rotating magnetic field of the stator. An inverter (3) comprises the same number of switching circuits (3A, 3B) as the number of groups which supply alternating current to the coils of the groups (A, B) according to the switching action of switching elements (SW1-SW6, SW7-SW12) of each of the switching circuits (3A, 3B), and a control...

An inverter apparatus includes an inverter circuit for driving a load. This inverter circuit has at least a pair of switching elements connected in series in a forward direction between both polarity terminals of a dc supply for supplying power to a load. An inverter drive circuit is employed for driving each switching element of the inverter circuit and has at least one high withstand voltage IC wherein the signal level reference potential is different in the input signal and the output signal....

A DC-AC inverter that is adaptable for use with different input voltages and for use with different loads. The DC-AC inverter has a voltage-step-up network, with the step-up voltage set by a controller that drives totem-pole configured FET switches at a duty cycle that depends on the desired step-up voltage. The controller beneficially regulates its duty cycle in response to current and/or voltage feedback signals. Also beneficially, the DC-AC inverter includes a configurable inductor and a conf...