One button and 5 relays control 2 light circuits, is there any expert?

电气小白白

One button and 5 relays control 2 light circuits, is there any expert? [Copy link]

1 miniature circuit breaker, 1 normally open button, green indicator

One indicator light, one red indicator light, five 24V intermediate relays

Circuit requirements: None of them are on at first. When you press the button for the first time, the green indicator light is always on (the red indicator light is not on).

Press the button for the second time, and the green and red indicators will light up at the same time. Press the button for the third time, and the green and red indicators will go out at the same time (the above requirements need to be achieved repeatedly)

fxyc87

It's quite simple, just simulate it in Proteus.

led2015

If it doesn’t work, keep doing experiments to verify it.

maychang

Relays can be used to implement various combinational logic and sequential logic, but the operation is slow and the power consumption is high. Before the emergence of electronic computers using vacuum tubes, there were electromechanical computers [Mark 1] and [Mark 2] that used relays as logic elements.

As for your question (I guess it was asked by the teacher), can it be achieved with 5 relays? I haven't calculated it carefully, but as long as there are enough relays, your requirement of controlling two lights can definitely be achieved.

吾妻思萌

mark will share information with you in the evening

lightningguagua

To implement the circuit you describe, you can use a combination of logic gates, relays, and flip-flops. Here's a high-level overview of the circuit:

1. Connect the normally open pushbutton to one input of a flip-flop (such as a D flip-flop).
2. Connect the output of the trigger to the green indicator light.
3. Connect the output of the flip-flop to one input of the AND gate.
4. Connect the output of the AND gate to the red indicator light.
5. Connect the output of the AND gate to the coil of a Miniature Circuit Breaker (MCB).
6. Connect the output of the AND gate to the coils of five 24V intermediate relays.
7. Connect the output of the AND gate to the reset input of the flip-flop.
8. Connect the output of the trigger to the setup input of the trigger.

The circuit works as follows:

• Initially, the trigger is in reset state and both indicators are off.
• When the button is pressed for the first time, the trigger is set, the green indicator light comes on, and the MCB and the intermediate relay are enabled.
• When the button is pressed a second time, the trigger remains set, keeping both indicators lit.
• When the button is pressed a third time, the trigger is reset, the two indicator lights turn off, and the MCB and the intermediate relay are disabled.
• By pressing the button again, the circuit can repeat the above sequence.

Please note that the specific implementation details may vary depending on the components you use and the circuit requirements. It is recommended to consult the data sheet of the component and design the circuit according to the actual situation.

+-----------------+
  |                 |
  |    NO Button    |
  |                 |
  +--------+--------+
           |
           |
           v
  +--------+--------+
  |                 |
  |    D Flip-Flop  |
  |                 |
  +--------+--------+
           |
           |
           v
  +--------+--------+
  |                 |
  | Green Indicator |
  |      LED        |
  +--------+--------+
           |
           |
           v
  +--------+--------+
  |                 |
  |    AND Gate     |
  |                 |
  +--------+--------+
           |
           |
           v
  +--------+--------+
  |                 |
  | Red Indicator   |
  |      LED        |
  +--------+--------+
           |
           |
           v
  +--------+--------+
  |                 |
  |   Miniature     |
  | Circuit Breaker |
  +--------+--------+
           |
           |
           v
  +--------+--------+
  |                 |
  | Intermediate    |
  |     Relays      |
  +--------+--------+

The above comes from cursor. I am too lazy to think about it. I don’t know if it is right. It feels like another day of unemployment.

lanhua

"One button and 5 relays control 2 light circuits"

An interesting challenge, it encourages everyone to think when they have nothing to do.