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Tech Head - The Technology Section
The Work Bench and Soldering Station
V-Box blew up :(
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<blockquote data-quote="Captain Jack" data-source="post: 913133" data-attributes="member: 243342"><p>Hi Evan, need your opinion.</p><p></p><p>So, in order to do away with manually switching each board on and off, I've come up with this idea.</p><p></p><p>On the little used declination V-Box, I am planning on keeping it turned off by default when the receiver is powered on. For this, I need some sort of a circuit to "push" the power button as soon as the receiver is switched on (or a second later) to turn the box off. I already have designs for the circuit but I am wondering what's best.</p><p></p><p>The first design is that the circuit is powered by the 5V line from the V-Box and triggers a relay for half a second to turn the V-Box off when the power appears on the receiver/LNB line. This then stays dormant until the next time receiver is switched off and back on.</p><p></p><p>The second design the whole circuit is powered by the recever/LNB line and, again, triggers a relay to turn the V-Box off. </p><p></p><p>My personal preference is the former - have the circuit powered up from the V-Box power supply rather than the LNB line itself. Hopefully this would introduce less noise into the system etc.</p><p></p><p>What do you think?</p></blockquote><p></p>
[QUOTE="Captain Jack, post: 913133, member: 243342"] Hi Evan, need your opinion. So, in order to do away with manually switching each board on and off, I've come up with this idea. On the little used declination V-Box, I am planning on keeping it turned off by default when the receiver is powered on. For this, I need some sort of a circuit to "push" the power button as soon as the receiver is switched on (or a second later) to turn the box off. I already have designs for the circuit but I am wondering what's best. The first design is that the circuit is powered by the 5V line from the V-Box and triggers a relay for half a second to turn the V-Box off when the power appears on the receiver/LNB line. This then stays dormant until the next time receiver is switched off and back on. The second design the whole circuit is powered by the recever/LNB line and, again, triggers a relay to turn the V-Box off. My personal preference is the former - have the circuit powered up from the V-Box power supply rather than the LNB line itself. Hopefully this would introduce less noise into the system etc. What do you think? [/QUOTE]
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Tech Head - The Technology Section
The Work Bench and Soldering Station
V-Box blew up :(
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