PopBottle - 1 Goal Statement To design a mechanism that is...

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1 Goal Statement To design a mechanism that is powered by 273-255 electric motor to transport 2 liters pop bottle for more than 2 meters. This design will involve designing timing circuit to time a power supply for 10 second or less. The mechanism will be built from elastic band and pop can and plastic bottle. 1
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2 Chart Activity Plan 2
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3 Analysis the existing conditions 3.1 Analysis electric motor supplied 3.2 Analysis 555 electronic timer circuit The 555 timer has two basic operational modes: monostable(one- shot) and astable mode. Monostable (one-shot) mode The 555 timer is connected as monostable mode, shown in figure1. A switch is connected to trigger pin of 555 timer. As it turns on, a negative pulse is applied to the trigger input, which sets the flip flop. The setting of flip flop causes a positive output level, which is the beginning of the output timing pulse. This turns discharge transistor off which charged the capacitor Ct via Rt . When the voltage on the capacitor ( Ct ) reaches the control voltage (
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