This is a development of:
PCB: low voltage On-Off switch drives AC mains relay \ includes soft start .. H9KPXG
The default behaviour mimincs the above, but with two independant outputs rather than one on a single 99x99mm PCB.
However, the use of a microcontroller allows the following additional features:
The general information at the beginning of the thread linked above is still applicable to this version. I have touched on the development of this version later in that thread.
This design has successfully been operating a pair of power amplifiers amplifiers for which it was originally designed. The first version of the PCB had a couple of 'non-idealities' which were easily worked around (missing relay Zeners, error in arduino footprint), which I have corrected in the version of the PCB shared.
I have also created a GitHub repository for this project, which includes schematics, BOM, firmware, PCB Gerber files, and details of operation, firmware and build, please see: my projects on GitHub
- Richard
PCB: low voltage On-Off switch drives AC mains relay \ includes soft start .. H9KPXG
The default behaviour mimincs the above, but with two independant outputs rather than one on a single 99x99mm PCB.
However, the use of a microcontroller allows the following additional features:
- Simultaneous or sequential switching of the two outputs
- Flexible LED control
- Infra-red receiver to allow operation from any IR remote
The general information at the beginning of the thread linked above is still applicable to this version. I have touched on the development of this version later in that thread.
This design has successfully been operating a pair of power amplifiers amplifiers for which it was originally designed. The first version of the PCB had a couple of 'non-idealities' which were easily worked around (missing relay Zeners, error in arduino footprint), which I have corrected in the version of the PCB shared.
I have also created a GitHub repository for this project, which includes schematics, BOM, firmware, PCB Gerber files, and details of operation, firmware and build, please see: my projects on GitHub
- Richard
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Output == Channels? AKA I could set this up to power on a preamp, and then have the other output become active when I want the phono stage?
Very nice looking board BTW.
Very nice looking board BTW.
Ah yes, description updated.
If you mean operating the two channels completely independantly, then yes this could be done with 2 switches (or seperate IR codes) and firmware mods to match.
And thanks!