What is a D Latch Flip Flop Circuit for a Control Relay?

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SUMMARY

The discussion focuses on implementing a D latch flip flop circuit to control a relay for a light system. The circuit operates by turning the light on when powered, and toggling it off and on with a momentary button press, with a one-second delay for the on state. The user seeks clarification on how to effectively apply D latch and flip flop logic to control relays, specifically how a relay responds to signals from the flip flop to open or close a contactor. A ladder diagram is requested for visual guidance.

PREREQUISITES
  • Understanding of D latch and flip flop logic circuits
  • Basic knowledge of relay operation and contactor functionality
  • Familiarity with momentary switch mechanisms
  • Ability to interpret ladder diagrams in control systems
NEXT STEPS
  • Research how to design a D latch flip flop circuit for relay control
  • Learn about ladder logic programming for relay control systems
  • Explore the timing characteristics of D latches in practical applications
  • Study the interaction between relays and flip flop outputs in control circuits
USEFUL FOR

Electronics enthusiasts, control system engineers, and anyone involved in designing relay-based control circuits will benefit from this discussion.

codyrodgers
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I need help! I'm really close to figuring out this Control Relay circuit but I'm running out of time.

Circuit Description: Plug in the circuit and the light turns on. Press the momentary button and the
light goes off. Press the momentary button again, and the light turns back on after one second.
Press the button again and the light goes back off. Repeat...

I've been reading on the D latch and Flip Flop logic a bunch, but I can't figure out how to apply it to
using relays! I know I'm missing something little can somebody help me PLEASE! If somebody could
draw a quick ladder diagram and upload a picture it would save lives. My co-workers and I are
stuck and out of time.
 
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Doesn't a relay just fire a contactor? (takes a normally open switch and closes it). If the relay gets a signal of "1" from the flip flop, it shoud close the contactor and turn on light.

When relay gets a "0" from flip flop it should open contactor and turn light off.

As far as the "quick" ladder diagram...that's up to you!
 

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