U211B2 Datasheet, PDF (19/20 Pages) TEMIC Semiconductors – Phase Control Circuit - General Purpose Feedback

U211B2/ B3
The circuit is designed as a speed control on the
reflection-coupled principle with 4 periods per revolution
and a max. speed of 30.000 rpm. The separation of the
coupler from the rotating aperture should be 1 mm
approximately. In this experimental circuit, the power
supply for the coupler was provided externally because of
the relatively high current consumption.
Instructions for adjusting:
D In the initial adjustment of the phase-control circuit,
R₂ should be adjusted so that when R₁₄ = 0 and R₃₁ are
in min. position, the motor just turns.
D The speed can now be adjusted as desired by means of
R₃₁ between the limits determined by R₁₃ and R₁₄.
D The switch-off power of the limit load control can be
set by R₉. The lower R₉, the higher the switch-off
power.
Dimensions in mm
Package: DIP18 – U211B2
Package: SO16 – U211B3
94 8877
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
94 8875
19 (20)