strange behavior at T flip flop output

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
lock attach
Attachments are accessible only for community members.
user_3716231
Level 4
Level 4
25 sign-ins 10 sign-ins 5 sign-ins

I want to measure frequency and power factor,but I've gone through this issue for a week and don't understand why.when the frequency is set 60hz,I sometimes measure 20hz.the phase shift is set 30 deg,but sometimes it is measured 389.30.

I know there are some solutions in the community post,but I want to apply my method to measure values and the post is locked.

eliminate bounces at comparator output Re: bounces happened at comparator output

measure frequency Re: bounces happened at comparator output

phase shift greater than 30 Re: bounces happened at comparator output

the yellow wave is comparator output.the blue one is tff output.

the green circle is normal.the red one is abnormal.

comp tff.PNG

(please ignore disabled pages)

0 Likes
17 Replies