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| U211B Datasheet, PDF (22/30 Pages) ATMEL Corporation – Phase Control IC with Overload Limitation for Tacho Applications | |||
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Figure 10-18. Speed Control, Automatic Retriggering, Load Switch-off, Soft Start
The switch-off level at maximum load shows in principle the same speed dependency as the
original version (see Figure 10-17 on page 21), but when reaching the maximum load, the motor
is switched off completely. This function is effected by the thyristor (formed by T1 and T2) which
ignites when the voltage at pin 15 reaches typically 7.4 V (reference point pin 16). The circuit is
thereby switched to standby mode over the release Pin 18.
22 U211B
4752BâINDCOâ09/05
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