madhavdivy
Newbie level 3
I have attempted to build a toggle switch with D Flip flop 4013, - refer to my ckt attached in pdf.
I have simulated the pulse train (Fin = 2 hz) with NAND gates (4093 - schmitt - clear edges) in astable mode (LED 1 as indicator) and this goes as input to CLK of D FF.
The inv. Q output is connected to D input.
I have put a transistor with a 2.2 k resistor in between the base of transistor 2N2222 and the Q output of CD4013. This is for indication of (Fin/2) with LED 2 with 1k current limiting resistor in the collector.
All unconnected pins have been connected to GND. The entire circuit is being powered by a single switch and DC of 11.12 v.
Can you show some way, as the output is getting latched to single position, even though LED 1 is flashing at the determined rate. Thanks in advance.
I have simulated the pulse train (Fin = 2 hz) with NAND gates (4093 - schmitt - clear edges) in astable mode (LED 1 as indicator) and this goes as input to CLK of D FF.
The inv. Q output is connected to D input.
I have put a transistor with a 2.2 k resistor in between the base of transistor 2N2222 and the Q output of CD4013. This is for indication of (Fin/2) with LED 2 with 1k current limiting resistor in the collector.
All unconnected pins have been connected to GND. The entire circuit is being powered by a single switch and DC of 11.12 v.
Can you show some way, as the output is getting latched to single position, even though LED 1 is flashing at the determined rate. Thanks in advance.