AUTOPILOT_GYRO_CONTROL

Published:2009/7/13 1:11:00 Author:May | From:SeekIC

Flip-flop Q1-Q2 controls breakdown of zener diode D2. At breakdown, D2 has low impedance, shunting 180,000-ohm trigger resistor and reducing input to five-stage d-c amplifier Q3-Q7. Over-all voltage gain is 27. Demodulator is bistable lip-lop Q11-Q12 and series switching transistors Q8-Q9, giving no-signal d-c output of 9V. This level is modulated 3V for maximum in-phase or out-of-phase error signals from gyros.-J. H. Porter, Miniaturized Autopilot System for Missiles, Electronics, 33:43, p60-64.



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