Position: Index > Oscillator Circuit >

Closed-loop three-phase multivibrator oscillator circuit dia

2016-08-04 00:16  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Closed-loop three-phase multivibrator oscillator circuit diagram
Closed-loop three-phase multivibrator oscillator circuit diagram
As shown in the figure,the closed loop is composed of three identical Schmitt triggers connnectedend to end. Each trigger's delay timetd = l . 1 (RP + R) C,and td is the time required by voltage on C to rise to 1/3 VDD. After 555 resets, the charge on C is dischared by formerIC output ( pin 3 ) through R, W, and thus the charging time constant is the same with C's. Once each trigger circuit's output endneeds to change, it requires to be transmitted three single stable trigger circuits, and the required time is 3td Therefore, the output cycle of each IC Td = 6td . The corresponding frequencyis