Captain Jack
- Jan 19, 2015
- 3
- Joined
- Jan 19, 2015
- Messages
- 3
Hi,
I have a positioner device that drives a satellite antenna, which is controlled by the satellite receiver. When the receiver is switched on, the positioner device wakes up from standby.
What I would like it to do is for the device to stay in standby mode when the receiver is switched on by "pressing" the power button - but electronically. The button is a simple push one which shorts the two connections going to it. The positioner wakes up when 13V to 18V is present on one of the lines.
I would like my circuit to also 'sense' this line, wait a second or so and then "push" the button for around half a second - essentially a delayed pulse? But only do this once - as long as the line has 13 or 18v on it, don't do anything else until the power is taken away and reapplied.
Does this make sense?
Unfortunately, I haven't really done electronics for a loooong time, so need some guidance on creating this circuit. I was thinking of doing it through the usage of logic gates with perhaps a combination of capacitors to introduce the initial second delay and the half second delay for the "pulse/short" but in reality it can probably be something much simpler than this.
Any advice would be appreciated.
Thanks
Alex
I have a positioner device that drives a satellite antenna, which is controlled by the satellite receiver. When the receiver is switched on, the positioner device wakes up from standby.
What I would like it to do is for the device to stay in standby mode when the receiver is switched on by "pressing" the power button - but electronically. The button is a simple push one which shorts the two connections going to it. The positioner wakes up when 13V to 18V is present on one of the lines.
I would like my circuit to also 'sense' this line, wait a second or so and then "push" the button for around half a second - essentially a delayed pulse? But only do this once - as long as the line has 13 or 18v on it, don't do anything else until the power is taken away and reapplied.
Does this make sense?
Unfortunately, I haven't really done electronics for a loooong time, so need some guidance on creating this circuit. I was thinking of doing it through the usage of logic gates with perhaps a combination of capacitors to introduce the initial second delay and the half second delay for the "pulse/short" but in reality it can probably be something much simpler than this.
Any advice would be appreciated.
Thanks
Alex