The VCO circuit diagram of dual D trigger

Published:2011/8/10 3:18:00 Author:nelly | Keyword: VCO, Dual D trigger | From:SeekIC

As shown in the figure, it is the VCO of dual D trigger. The circuit outputs a square wave signal with 50% duty cycle, the current consumption is low. When the input voltage is 5~12V, the output frequency range is 20~70KHz. Firstly, presuming IC-A's initial state is Q=low level. Then VD1 is cut off, C1 is charged by R1. When C1's voltage reaches the set level, IC-A is forced to reverse, the Q output terminal turns to high level, C1 is discharged by VD. At the same time, IC-A's CL input terminal turns to low level too, IC-A is forced to Q=low level.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/The_VCO_circuit_diagram_of_dual_D_trigger.html

Print this Page | Comments | Reading(3)