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UAA145 Datasheet(PDF) 1 Page - TEMIC Semiconductors

Part No. UAA145
Description  Phase Control Circuit for Industrial Applications
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Maker  TEMIC [TEMIC Semiconductors]
Homepage  http://www.temic.de
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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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