Design a 24V capacitive touch 4 step PWM dimmer
Budget: $8 – $15 USD
24V nominal input voltage.
26.4V maximum input voltage.
21.6V minimum input voltage.
40W maximum working load.
2A maximum working load.
50°C maximum ambient temperature.
Power supplied by external 24V±10% power supply.
≥10kHz PWM frequency.
≥256 dimming steps. – prefer this to be simpler ie 5 step touch –
Touch once = On @25%,
Touch again = 50%
Touch again = 75%
Touch again = 100%
Touch again = Off
Also means we only need one small touch-sensitive zone for all functions.
18 AWG PCB terminals.
Capacitive touch sensing through 3mm thick clear glass.
26.4V maximum input voltage.
21.6V minimum input voltage.
40W maximum working load.
2A maximum working load.
50°C maximum ambient temperature.
Power supplied by external 24V±10% power supply.
≥10kHz PWM frequency.
≥256 dimming steps. – prefer this to be simpler ie 5 step touch –
Touch once = On @25%,
Touch again = 50%
Touch again = 75%
Touch again = 100%
Touch again = Off
Also means we only need one small touch-sensitive zone for all functions.
18 AWG PCB terminals.
Capacitive touch sensing through 3mm thick clear glass.