Smart Home Automation Forum

Hello,

at first i want to point out that i already have some of your boards used in my automation but not for the dimming.

The goal is to be able to dim these lights:
- 1 LED ceiling lamp, which is actually LED panel inside and it can work with 230V, or 24V DC but this lamp needs 100W power supply. It is dimmable with PMW(12/24V DC).
  https://shop.ledco.sk/loxone-svietidla-2...-2700k-65/  - you can check it here
- 4 LED ceiling lamp which are basically the same as the previous one but smaller and hence it needs only 60W power supply.
- 20 LED spot light GU10, 24V DC and needs 5W power supply.
- also a few LED strips will be there but those are irrelevant for now

When i was checking your boards only KC868-AP looked like a match but i was not sure if it can handle what i described. KC868-D16 is no go because it is without ESP32 and i want to be able to ESPHOME to be able to configure momentary switches clicks as i want.

Also i saw that you mentioned that you are developing a new board as ESP32 dimmer.

Can you please help me with this? What could work with the lights which i described?

Thanks in advance

the new ESP32 dimmer is KC868-AP. it can output DC 0--power supply voltage. such as work with DC24v LED. it support by ESPHome.
here is ESPHome yaml for KC868-AP: https://www.kincony.com/forum/showthread.php?tid=2477
here is diagram of KC868-AP: https://www.kincony.com/forum/showthread.php?tid=2492

(04-29-2023, 11:12 AM)admin Wrote: [ -> ]the new ESP32 dimmer is KC868-AP. it can output DC 0--power supply voltage.  such as work with DC24v LED. it support by ESPHome.
here is ESPHome yaml for KC868-AP: https://www.kincony.com/forum/showthread.php?tid=2477
here is diagram of KC868-AP: https://www.kincony.com/forum/showthread.php?tid=2492

Would it be possible to use KC868-AP to dim the light which needs 100W power supply? If my math is correct, 100W/24V = 4,16 A which is more than drivers on KC868-AP can handle right?

100W is no problem with KC868-AP, just chose correct power supply for DC24v. do you means all channel together is 100W? because KC868-AP have 16 channel OUTPUT terminal. how many pcs of LED lamp you want connect to KC868-AP?

Just one channel would need 100W, other 4 would need 60W each and rest would need 5W each. So in the end it would be 100+4*60+11*55=945W for whole board. But i can use different power supply for 1-8 output and 9-16 right?

KC868-AP have 16 channel output, do you every LED just cost 1 channel? because if one RGBW led will cost 4 channel.

no RGBW for those lights i mentioned, those are only white lights

every 4 channel output use by one Vin terminal. every Vin teminal MAX current is 10A. so you can calculate your power supply.
of cource you can use multi power supply , just not let Vin port terminal >10A current.

(04-29-2023, 01:41 PM)admin Wrote: [ -> ]every 4 channel output use by one Vin terminal. every Vin teminal MAX current is 10A. so you can calculate your power supply.
of cource you can use multi power supply , just not let Vin port terminal >10A current.

Lets talk about actual scenario:
- i would use first 4 channels
- channel 1 connected to LED ceiling lamp which needs 88W power supply
- channel 2,3,4 would be connect to LED spot light where each needs 5W power supply
- that means i need power supply which covers 103W so i would use 150W power supply
- max current for those 4 channels would be lower than 10A

Could this work? In description of the product is stated that each driver can work with max 3A, but with that first ceiling LED lamp it would need 3.66A to work.

[attachment=2350]
see this photo. suggest 
- channel 1 connected to LED ceiling lamp which needs 88W power supply
- channel 2,3,4 would be connect to LED spot light where each needs 5W power supply

1,2,3,4 work with photo's point is better. must need connect with DC24v to "orange" terminal, so that current can be split. actually if use on "orange" terminal for some channels output, MAX is 5A. so suggest use two different "orange" terminal connect to your DC24v power supply.