i checked the image now... if your output sensor is a pnp transistor you could put it directly to ds2406 5v and some resistors to pull up.... if it´s not in same power circuit than ds2406, you will need a optocoupler, to don´t build a brick
Em 11 de março de 2012 12:48, Roberto Spadim <robe...@spadim.com.br> escreveu: > http://www.onsemi.com/pub_link/Collateral/NL17SZ17-D.PDF > well, i will stop sending email, > find at maxim, microchip, national, analog devices, and others and > search schimitt triger and buffers > > > Em 11 de março de 2012 12:47, Roberto Spadim <robe...@spadim.com.br> escreveu: >> http://www.datasheetcatalog.org/datasheet/philips/74LVC14APWDH.pdf >> Hex inverting Schmitt-trigger with 5V tolerant input >> >> >> >> Em 11 de março de 2012 12:44, Roberto Spadim <robe...@spadim.com.br> >> escreveu: >>> you could use a opamp like a buffer or schimitt triger (first is >>> analog, the second is 'digital') >>> >>> first check what´s the max/min voltage and select a right buffer opamp >>> (it´s not isolate like double coil transformers, or optocouplers) >>> if you want isolation, use a optocoupler or a isolated transformers >>> (double coil transformers normally) >>> if you want less voltage you can use zener diodes to cut max voltage >>> (check what´s the current you will use) >>> >>> check that relay is not only a on/off circuit, it have a time to turn >>> on, and a time to turn off, it´s like a big digital output lowpass >>> filter >>> if your circuit is very fast maybe you will need a rc filter (low pass >>> filter) >>> opamp with buffer configuration is usual in analog signals, schmitt >>> triger are usual in digital signals, there´s cmos/ttl buffers that >>> make the same job like schimitt triger but with diferent voltage >>> levels >>> check: >>> >>> http://en.wikipedia.org/wiki/Schmitt_trigger >>> http://en.wikipedia.org/wiki/Buffer_amplifier >>> >>> here have many usual components to eletronic with boards and devices >>> included: >>> http://www.mikroe.com/eng/products/view/208/mikrobuffer-board/ >>> http://www.mikroe.com/eng/products/view/209/mikrobuffer-proto-board/ >>> http://www.mikroe.com/eng/categories/view/41/various-boards/ >>> >>> Em 11 de março de 2012 11:45, Patryk <p4tr...@o2.pl> escreveu: >>>> Dnia 11.03.2012 o 14:47 Chris Lautre <chris.lau...@karusoft.com> Chris >>>> Lautre <chris.lau...@karusoft.com> napisał(a): >>>> >>>>> Hi >>>>> >>>>> A while ago I saw some discussion about a Vibration sensor. >>>>> I have found an adjustable one that works great: >>>>> http://www.assemtech.co.uk/ >>>>> There are 2 models NPN(PDS1000-1) and PNP(PDS1000-2) output. >>>>> They are about 40 GBP. >>>>> >>>>> I have the circuit below working fine. >>>>> The DS2406 reads the Relay open/close. >>>>> I know there must be a way of reading the output without using the relay. >>>>> (My circuit design knowledge is a bit limited to say the least) >>>>> Can anyone suggest a suitable circuit? >>>> >>>> I'm not an expert myself. I would use a optoisolator. Those are cheap and >>>> draw less power than a relay. >>>> http://en.wikipedia.org/wiki/Opto-isolator >>>> >>>> Here's one 4N33 it about $1 and you will need some resistors >>>> http://www.me.umn.edu/courses/me2011/arduino/technotes/4N33.pdf >>>> >>>> Look at the page 4 on the left there is example of a circuit. >>>> However the one thing I'm not sure if this particular one(4N33) would run >>>> 5V on the detector side. If you have some local electronics shop I think >>>> they will give you one suitable for 5V. >>>> >>>> Or maybe the 6N138 can be supplied with 5V on detector side. >>>> >>>> I never used those but once built one optoisolator from a diode and >>>> phototransistor an put them in a black shrinktube. If your local shop does >>>> not have optoisolaotrs(optocouplers) the will certainly have a >>>> phototransisotr(which looks like a LED) >>>> >>>> >>>> -- >>>> p4trykx >>>> >>>> ------------------------------------------------------------------------------ >>>> Virtualization & Cloud Management Using Capacity Planning >>>> Cloud computing makes use of virtualization - but cloud computing >>>> also focuses on allowing computing to be delivered as a service. >>>> http://www.accelacomm.com/jaw/sfnl/114/51521223/ >>>> _______________________________________________ >>>> Owfs-developers mailing list >>>> Owfs-developers@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>> >>> >>> >>> -- >>> Roberto Spadim >>> Spadim Technology / SPAEmpresarial >> >> >> >> -- >> Roberto Spadim >> Spadim Technology / SPAEmpresarial > > > > -- > Roberto Spadim > Spadim Technology / SPAEmpresarial -- Roberto Spadim Spadim Technology / SPAEmpresarial ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers