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UAA145 Datasheet(PDF) 1 Page - TEMIC Semiconductors |
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UAA145 Datasheet(HTML) 1 Page - TEMIC Semiconductors |
1 / 11 page ![]() UAA145 TELEFUNKEN Semiconductors Rev. A1, 29-May-96 1 (11) Phase Control Circuit for Industrial Applications Description The UAA145 is a bipolar integrated circuit, designed to provide phase control for industrial applications. It permits the number of components in thyristor drive circuits to be drastically reduced. The versatility of the device is further enhanced by the provision of a large number of pins giving access to internal circuit points. Features D Separate pulse output synchronized by mains half wave D Output pulse-width is freely adjustable D Phase angle variable from >0° to <180° D High-impedance phase shift input D Less than 3° pulse symmetry between two half-cycles or phase of different integrated circuits D Output pulse blocking Applications D Industrial power control D Silicon controlled rectifier Package: DIP16 (special case) Block Diagram Channel selection Pos. / Neg. half wave Memory R S Puls Comparator Supply Ramp generator Voltage synchronisation Pulse inhibit 6 916 –V Ref 15 7 13 3 1 8 +15 –15 10 14 PHW NHW 8 2 11 PHW = Positive half wave NHW = Negative half wave 95 11298 generator Figure 1. Block diagram |
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