Sharing the principle of the adapter solution for charging while listening to music

禾川芯

Sharing the principle of the adapter solution for charging while listening to music [Copy link]

 

In fact, USB Type-C has been around for more than five years as an interface standard. In August 2014, Type-C was officially proposed as an interface in the latest USB 3.1 standard. It is a new USB cable and connector specification that defines a whole new set of USB physical specifications including connectors, ports, containers, and cables.

Nowadays, mobile phones have USB Type-C interface adapters, which can easily realize the conversion between different audio plugs and audio headphones. It is also safer to listen to music while charging, so that the mobile phone playing songs will not be powered off and continue to last.
How to achieve this?
Below is the chip diagram and schematic diagram

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annysky2012

I have a question: Can I quickly charge the battery before listening to music? Also, is this device generally used on mobile phones, or is it a separate device?

w494143467

annysky2012 posted on 2021-8-9 12:13 I have a question: Can I quickly charge the battery before listening to music? In addition, is this device generally used on mobile phones, or is there a separate device...

I think this should be an expansion port.

w494143467

Nowadays, people generally choose Bluetooth headphones to listen to music, so there should not be much demand for this solution.

禾川芯

annysky2012 posted on 2021-8-9 12:13 I have a question: Can I quickly charge the battery before listening to music? In addition, is this device generally used on mobile phones, or is there a separate device...

No! Because there is only one PD charging chip and audio conversion chip on the device, it cannot connect to other devices. If you want to connect to other devices, you need to add the corresponding chip to effectively connect.

禾川芯

w494143467 posted on 2021-8-9 14:25 I think this should be an expansion port.

Yes! It can be regarded as the simplest mini docking station.

w494143467

Hechuanxin published on 2021-8-9 17:48 Yes! It can be regarded as the simplest mini docking station.

I feel that some more useful interfaces can be expanded~

annysky2012

Hechuanxin published on 2021-8-9 17:46 No! Because there is only one PD charging chip and audio conversion chip on the object, it cannot be connected to other devices. If you want to connect other devices...

So that’s how it is…

annysky2012

w494143467 Published on 2021-8-9 14:26 Nowadays, people usually choose Bluetooth headphones to listen to music, so the demand for this solution should not be great.

Yes, so I feel that this plan is weird when I see it, but it’s good to have ideas.

禾川芯

w494143467 posted on 2021-8-10 09:10 I feel that some more useful interfaces can be expanded~

If you want to expand some other uses, it will be an expansion dock! The original intention is to be small and convenient. If you want to expand other functions, then the board needs to be larger! Although the functions have increased, the small and convenient features have been lost.

se7ens

The idea is feasible, for example, you can use a power bank to charge your phone while listening to music when you go out.

This app is currently available on Apple phones

Android phones are basically equipped with headphone jacks, but most people don’t use them.

禾川芯

se7ens posted on 2021-8-11 10:17 The idea is feasible, for example, you can use a power bank to charge and listen to music when you go out. This application is currently available on Apple phones, and Android phones basically have it reserved...