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555 touching bistability Controller circuit

2015-01-30 10:23  
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555 touching bistability Controller circuit
555 touching bistability Controller circuit
As shown on the figure 4-10, the 555 is the core of this circuit. It uses the 555's 6 foot to contact the comparator A1's in-phase and inverted input of the interior substrate. It can change the output state through controlling the reset and set. When touching the metal disc A, the 555 will be reset, the LED1 will light on and the LED2 will light off. When touching the metal disc B, the LED2 will light on and the LED1 will light off. If changing the relay, we can achieve the control of the executive circuit's power.