Seat Heater switches

[Huw Powell]

Yes it would.  The 555 is what I had in mind when I said a duty cycle timer.

You'd want a variable control on the timer (to set your general comfort 
level) and a bypass for warm up that runs the elements full-on.

- Huw

On 1/31/2015 1:27 PM, Kent McLean wrote:
> Huw wrote:
>> Because the heaters themselves, the elements, are either on or off.
>>
>> The key is to turn them on and off automagically to maintain a set temperature.
>
> Would this work?
>
>    http://www.gadgetronicx.com/2014/05/pwm-lamp-dimmer-circuit-ic-555.html
>
> That site also has a circuit to control a motor.
>
> —
> Kent McLean, who views electronics as magic
> ’02 VW Beetle TDI and lots of ex-Audis, including Bad Puppy
>
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