Hello

Need drive and dim led strips, each 12v, 22w/m, 3 strips are cold and 3 warm As shown in attached photo
The dimming im willing to do with 555 ic by pwm signal and Potentiometer for increase dimming and decrease
Need buttons to control cold and warm led strip
When click a push button the cold led strip light, when press again or press different button warm strip light, and same for each strip
This battery powered project, 12v 30000mah lithium battery

Anyway to do this project without using microcontroller, arduino, esp, etc?
Any chip can do this control?
Please suggest
Regards

 

Certainly the dimming can be implemented with a dual 555 IC and a couple of transistors. But that is for a manual adjustment scheme. For push-button ramp up or ramp down, not so simple.
Using the dual timer IC allows one to provide a constant ramp frequency with the second one working as a comparator to generate the variable pulse width.

 

The circuitry required to do this would end up being very complex, in the time required to design and debug this- you could master microcontroller programming and walk away with a new skill set and an elegant light dimmer.

 

This cannot do the job?

 

This cannot do the job?

Wrong for the job.

Your light strips are Constant Voltage, this driver chip is Constant Current.
It also does not address the control interface issue, which is the elephant in this room.

 

The simple scheme would be a simple knob controlled dimmer for each string set. two knobs, one for each, with a range of OFF to FULL ON.
That will require two dimmer circuits as mentioned before. No push-buttons or switches, except maybe a master ON/OFF switch.

 

I love the idea of doing this analog with no uC! I think you can solve the button challenge using an adder or a decade counter. Each time you pulse the input, it turns on a different output. Be sure to debounce the input.

https://www.electronicsforu.com/technology-trends/learn-electronics/decade-counter-circuit-basics

Here is a 10-bit version:

https://www.ti.com/product/CD4017B

I did not study this one long enough, but maybe the 5th output can be "off" and the 6th output can be tied to the reset to get you back to 0.

 

I love the idea of doing this analog with no uC! I think you can solve the button challenge using an adder or a decade counter. Each time you pulse the input, it turns on a different output. Be sure to debounce the input.

https://www.electronicsforu.com/technology-trends/learn-electronics/decade-counter-circuit-basics

Here is a 10-bit version:

https://www.ti.com/product/CD4017B

I did not study this one long enough, but maybe the 5th output can be "off" and the 6th output can be tied to the reset to get you back to 0.

Isn't this for counting purpose?, in sequence? , to light strips in sequence?, 1st on, then second on, then third on then 4th then 5th then 6th?
I want the strips to be controlled on and off
Each strip separate, to on or off or dim, that the concept, how do this with 4017?

 

Isn't this for counting purpose?, in sequence? , to light strips in sequence?, 1st on, then second on, then third on then 4th then 5th then 6th?
I want the strips to be controlled on and off
Each strip separate, to on or off or dim, that the concept, how do this with 4017?

The idea is every time you pulse the input, a different output turns on. Use those outputs to control the turning on/off of the LED strips. You can still use your dimmer/555 to control brightness. Have the outputs from the counter chip control mosfets or similar to determine which LED strip is fed by your PWM output. So you end up with a round robin kind of thing. A dimmer to control brightness, and a button to cycle through the LED strips. Is this what your goal was?

 

Each time you pulse the input, it turns on a different output

Turn on the output for how long?, can I control the on time as I want or no?, with this chip?

 

Wrong for the job.

You are right

 

This can be controlled by switches?, for on and off the strips?.
Or once click the switch the led lighting sequence start?,
How this circuit work?

 

Turn on the output for how long?

Until the next pulse (button push.)

 

PWM dimming will take circuits that I only mentioned. The button pushing ON/OFF is a totally separate DIFFERENT FUNCTION. A who;e bunch of alternate action buttons for on/off will allow the most flexible control with the very least complexity. AND, that IC in the #12 post will be a good interface.

 

that IC in the #12 post will be a good interface

Good interface for dimming or for light control?

 

Can you share a circuit for this?
It will work for all 6 strips?, or only two?, so need one for every two strips?

 

How long are the LED strips?

 

Please look at this part the following link
Can this circuit control brightness for each colour?
For my project, can I use for controlling brightness for each 3 led strips?

https://www.homemade-circuits.com/rgb-light-strip-controller-circuits/amp/

 

Might get more help if you answer post #17.

 

How long are the LED strips?

1 meter, 22w/m, they will need mosfet or transistor for handle this power , but right now focus on achieving the circuit concept
How control the brightness for each strip separately?
For selecting, 4017 will do the job, to light warm strip when press a button, and light cold for another press and off for another press
Want for wach press control the brightness