MT-700 voice Phychopsis circuit diagram

Published:2014/4/14 22:01:00 Author:lynne | Keyword: MT-700 voice Phychopsis circuit diagram | From:SeekIC

Voice UFO is a mechatronic device, which includes an electronic control circuit and mechanical operation of the device of two parts, mechanical parts working condition is controlled by an electronic circuit. Using voice and delay steering control DC motor control circuit. Circuit includes a total of three parts, from left to right: the sound signal receiving circuit electret microphone BM, etc.; transistor VT1, VT2 and R5, C3, etc. The delay control circuit; transistor VT3 ~ VT9 like the a motor drive circuit. When no sound signal, delay control circuit of two transistors VT1 end, VT2 conduction, output low, through the VT3, VT4, VT7, ultimately complementary driver transistor VT5, VT9 conduction, VT6, VT8 off, the motor M Forward, Voice UFO straight forward. R5, C3 is connected across the output of the delay control circuit (VT2 collector) to the input terminal (VT1 base), so that C3 is fully charged (the left and right being negative). When receiving the BM electret microphone sound signal, and outputs a positive pulse is coupled to the delay control circuit C2, VT1 conduction, VT2 off, the output from low to high, so that the drive tube VT5, VT9 off, VT6, VT8 conduction, motor M reversal, Voice UFO backwards. Voice UFO front wheel bracket designed as a special structure, making the front wheels automatically when reverse deflection angle, so voice flying saucer at the same time that their own turn backwards. Because of the delay before the network R5, C3 exists, the sound signal disappears, the delay control circuit outputs remain high for a few seconds, Voice UFO turned backwards a few seconds to recover straight forward. The main components and structural parts Some of the major components of electronic circuits, including: 9012-type PNP transistor, NPN transistor type 9013, 9014 type NPN transistor, electret microphone, capacitors, electrolytic capacitors, resistors, trimming potentiometers, power switch, and a printed circuit board, battery box, DC motors. The mechanical part of the main structure are: Body panels, tail panels, front wheel and front wheel bracket, rear and rear bracket, motor bracket, reduction gear set, transparent top cover and screws, nuts and so on. Debugging Mainly to adjust the voice sensitivity: the Voice UFO in the hand, mounted on two AA batteries, turn the power switch S, then UFO rear wheel should forward. Issue a voice password, and adjust trimmer potentiometer RP, so that voice sensitivity is moderate, UFO rear reliably can be reversed with a password.



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