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Subject: Re: PWM demodulator
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Thu, 14 Nov 2002 14:55:09 -0800
NNTP-Posting-Date: Thu, 14 Nov 2002 15:04:51 MET
Organization: @Home Network
"Edwin" wrote in message
> Do you have the contact number or web-site so that I can get one.
> By the way, when the receiver is receiving an ON signal, the pulse
> width is about 1.3 ms and 1.1 ms when it is oFF. Both signal repeat at
> a period of about 30 ms. Can the circuit you describe decode these two
> width and provide with a high level or low level signal once the ON or
> OFF signal is decoded.
> Thank you
> "Jeroen" wrote in message
> > "Edwin" wrote in message
> > news:email@example.com...
> > > Hi,
> > >
> > > Basically, I am thinking of using the signal from the PCM S
> > > receiver(JR) AUX 1 via a ON/OFF switch at the transmitter side to
> > > control a remote switch that will disable the power in event the
> > > system when unstable. However, due to the power and space limitation,
> > > I cannot use another servo.
> > >
> > > Can anyone shed a light as to how to design a simpler PWM demodulator
> > > so that I can get a high or low signal to drive my switch.
> > >
> > > Thank you and best regards
> > > Edwin
> > Use a D flipflop that is clocked by a delayed version of the input using
> > RC. The D input is connected to the input.
> > Don't know where you live, but for example Conrad sells these things as
> > DIY kit.
> > Or do want to detect when the receiver receives nothing?
> > Jeroen
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