U211B2/ B3
Figure 24. Speed control, automatic retriggering, load switch-off, soft-start
The maximum load regulation shows the principle in the at Pin 15 is lifted and kept by R over the internally
14
same speed dependency as the original version (see operating threshold whereby the maximum load
figure 2). When reaching the maximum load, the control regulation starts and adjusts the control unit constantly to
unit is turned to
flows. This function is effected by the thyristor, formed shows that the circuit is still in operation by a quiet
by T and T which ignites as soon as the voltage at Pin 15 buzzing noise.
, adjustable with R . Then only I
(I ), inspite of a reduced load current. The motor
max O
max
2
O
1
2
reaches ca. 6.8 V (Reference point Pin 16). The potential
TELEFUNKEN Semiconductors
15 (20)
Rev. A1, 29-May-96
TEMIC [ TEMIC SEMICONDUCTORS ]
