Re: Government wants to abolish 'standby' button

In article <hdvae3hbjiccq9nj9gpoln9csbucoueojv@xxxxxxx>, Nospam wrote:
An efficient mains power supply providing enough power for an IR receiver
isn't that easy either it needs to be isolated to interface with the
isolated circuitry in the rest of the TV. Isolation near the mains isn't
easy or efficient, isolation at the interface takes additional power and
means more circuitry inside the TV is carrying mains voltages with
associated safety hazards and isolation problems and expense. 

After that the main source of standby power is probably losses in the front
end of the large main TV power supply which can not be eliminated without
disconnecting it from the mains which probably means a relay which wastes
power when the set is on and requires much more power from your additional
standby only power supply to drive it. 

1W likely is what can easily be archived with today's electronics for
standby power of a whole TV.

Somebody gave the example of a room thermostat containing a bit of working
electronics and a mechanical mains relay that is operated several times a day
for several years on a couple of AA cells. Indeed there is just such a device
on the wall in front of me as I type. Perhaps you'd care to divide the energy
content of a couple of AA cells by, say, three years, and tell me why we
couldn't make a TV set with similar standby power?

Rod.

.

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