U211B2/ B3
Figure 23. Speed control, automatic retriggering, load switch-off, soft start
The switch-off level at maximum load shows in principle This function is effected by the thyristor (formed by T
1
the same speed dependency as the original version (see and T which ignites when the voltage at Pin 15 reaches
2)
figure 2), but when reaching the maximum load, the typ. 7.4 V (Reference point Pin 16). The circuit is thereby
motor is switched off completely.
switched into the “stand-by” over the release Pin 18.
14 (20)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96