Abstract:
The present level shift circuit has a first (I1) and a second (I2) input respectively for input of a first and a second voltage signal and an output (OT) and comprises:
a) a first transistor (Q1) having a control terminal (G1), a first (S1) and a second (D1) main conduction terminal identifying a main conduction path, and b) a second transistor (Q2) of the same type as said first transistor (Q1) and having a control terminal (G2), a first (S2) and a second (D2) main conduction terminal identifying a main conduction path. The first signal is applied essentially between said control terminal (G1) and said first terminal (S1) of said first transistor (Q1) and said second input (I2) is coupled with the control terminal (G2) of said second transistor (Q2). The currents flowing in the conduction paths of the first (Q1) and the second (Q2) transistors are mutually proportional and one made from the other. The output (OT) is coupled with the first terminal (S2) of the second transistor (Q2). The control terminal (G1) of said first transistor (Q1) is connected to a potential reference (GND). The first signal is applied essentially to said first terminal (S1) of said first transistor (Q1).
Abstract:
Analog processor (2) of antecedent parts of fuzzy logic inference rules and comprising a plurality of analog generators (3) of membership function (FA) each having an output (4) supplying a value corresponding to a degree of truth complemented to one (α') of logical assignments of the type (A is A') with the outputs (4) being connected together to form a common circuit node (7) and also connected to a current generator (9) and the processor (2) comprising also a voltage control device (5) inserted between a supply voltage pole (V D ) and a ground voltage reference (GND) and a one-way element (8) connected to the common circuit node (7) and the one-way element (8) having an output (10) producing an overall degree of truth (Ω) for the antecedent part of the fuzzy rule to be processed.
Abstract:
A television signal scanning conversion device of the type comprising at least one filtering block (3) having a plurality of digital inputs (Pi, X) which receive through an interface (2) components (X, Pi) of an interlaced television signal comprises also at least one calculation block (CALC1) connected to the signal inputs and operating with fuzzy logic. Said calculation block is capable of executing a switch between at least two different interpolation procedures, to wit interfield and intrafield.
Abstract:
Circuit for calculation of values of membership functions (FA) in a controller (1) operating with fuzzy logic procedures and said membership functions (FA) being of triangular or trapezoid form and defined in a so-called discourse universe (U) discretized in a finite number of points (m) and said controller (1) comprising a central control unit (3) equipped with a memory section (5) for memorization of said membership functions (FA) and connected to a microprocessor (9) in turn connected to an interface (13) and in which the membership functions (FA) are memorized by means of a codification (FA i ) of the coordinate of the vertex and the slopes at the sides of the vertex. The circuit comprises a calculator (11) connected to the memory section (5), to the microprocessor (9), and to the interface (13), to reconstruct the value (α) of each membership functions (FA) at each point of the discourse universe (U).
Abstract:
The invention relates to a method and a generator for producing an aluminum ion flow, specifically for aluminum ion implantation in the microelectronics industry. The method comprises the following steps:
supplying a stream of an ionization gas into the ionization chamber; providing an amount of an aluminum-containing feed material inside the ionization chamber; generating, within the ionization chamber, an electron flow by supplying an electrode with a large current; bombarding the ionization gas stream with the electron flow to create a plasma; causing the plasma to attack the feed material so as to become enriched with aluminum ions; taking the plasma out of the ionization chamber; removing from the plasma, by application of a magnetic field, those ions which have a significantly different equivalent weight from the equivalent weight of the aluminum ions; all this having selected the ionization gas and feed material such that, in the plasma taken out of the ionization chamber, there will be aluminum ions present along with other ions, all having different equivalent weights from the equivalent weight of the aluminum ions.
Abstract:
A monolithically integrated, transistor bridge circuit of a type suiting power applications, comprises at least one pair of IGBT transistors (M1,M2). These IGBT transistors are laterally conducting, having drain terminals (9,19) formed on the surface of the integrated circuit (1), and through such terminals, they are connected to another pair of transistors (T1,T2) of the bipolar type. The invention also relates to an associated process for manufacturing said bridge circuit.
Abstract:
The invention relates to a process for forming buried regions having different doping concentrations in monolithic semiconductor devices comprising at least one pair of electronic components which incorporate said regions. Such regions are formed simultaneously by a single phototechnique and implantation operation using partial masking or screening of the areas exposed to the implantation.