Electronics > Projects, Designs, and Technical Stuff
Auto-Standby circuit doesnt work as expected
Michaelaudio:
Bc I want to cut the Power for everything not just the tpa's
Renate:
--- Quote from: Michaelaudio on August 07, 2020, 01:01:49 pm ---Bc I want to cut the Power for everything not just the tpa's
--- End quote ---
Aw, c'mon, how much current is the other stuff taking?
What other stuff? If you power it down how can you tell when the audio goes live again?
Michaelaudio:
As soon as a signal is applied to the inputs
Renate:
Trivia: This thing has a Bluetooth module, but you can't use it unless you feed the line inputs to deactivate your muting circuit.
The TDA's you can turn off with the SDZ.
Your detect circuit has to stay powered all the time.
You are only saving the power consumption on those middle opamps if you switch power.
That's only 1.4 mA/op amp.
So you really want to brute force switch the power to that middle section?
Without using a reliable shutdown/mute timing?
Michaelaudio:
I realized that too, so I will make that it doesnt turn off when bt is deleted.
I want it to work yes, I already changed connector nsfw on the pcb, spent hours of work just to get rid of some Problems (and 3 weeks to make schematic and layout) and now that everything works beside the stby circuit i want it to work no matter what, so yea I dont wanna redesign it or make it work another way than expected. I guess thats understandable.
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