Hello all!
I am currently a student studying product design at A Level and have given myself the challenge of making a portable Bluetooth amplifier that can run off of its own power supply. This is so that a potential user can take one or two Hi-Fi speaker out anywhere and plug them into this amp, connect with a smart device via Bluetooth and then listen to music wherever you want to easily e.g. in a park etc...
I am using a PCB Bluetooth amplifier called "TDA7492P 2*25W Wireless Bluetooth V4.0 Audio Receiver" which I bought on Amazon. The specification of the board are as followed:
Supply Voltage: DC 8-25V
Power Interface: 2.1 DC Socket
Audio Input: Bluetooth Receiver V4.0
Audio Output: Terminals
Output Power: Add Pre-5532 Output Foot
Applicable Speaker Impedance: 4/6/8/16 ohm
Number of Channels: Two-channel Stereo
PCB Board Size: 82 * 50mm / 3.23 * 1.97in
Weight: 37g / 1.32oz
I had the idea of setting up the circuit something like this which I found online for a Bluetooth speaker build:
But due to me not knowing as much as I should I don't understand how to wire this up to the PCB and whether this would work when wiring it up to the PCB.
I found a video online where the person wires up the same PCB but instead of having a charging port they use a DC port that is plugged in constantly supplying power to the device. Their wiring guide other than the contact to the power contact (which is above where it says switch in green is) is more a less what I think I need to do. His wiring guide looks like this:
If someone could please help and explain to me how i could get this to work or to come up with a better method for powering and charging the batteries that would be so greatly appreciated!!
Kind regards,
Charlie
I am currently a student studying product design at A Level and have given myself the challenge of making a portable Bluetooth amplifier that can run off of its own power supply. This is so that a potential user can take one or two Hi-Fi speaker out anywhere and plug them into this amp, connect with a smart device via Bluetooth and then listen to music wherever you want to easily e.g. in a park etc...
I am using a PCB Bluetooth amplifier called "TDA7492P 2*25W Wireless Bluetooth V4.0 Audio Receiver" which I bought on Amazon. The specification of the board are as followed:
Supply Voltage: DC 8-25V
Power Interface: 2.1 DC Socket
Audio Input: Bluetooth Receiver V4.0
Audio Output: Terminals
Output Power: Add Pre-5532 Output Foot
Applicable Speaker Impedance: 4/6/8/16 ohm
Number of Channels: Two-channel Stereo
PCB Board Size: 82 * 50mm / 3.23 * 1.97in
Weight: 37g / 1.32oz
I had the idea of setting up the circuit something like this which I found online for a Bluetooth speaker build:
But due to me not knowing as much as I should I don't understand how to wire this up to the PCB and whether this would work when wiring it up to the PCB.
I found a video online where the person wires up the same PCB but instead of having a charging port they use a DC port that is plugged in constantly supplying power to the device. Their wiring guide other than the contact to the power contact (which is above where it says switch in green is) is more a less what I think I need to do. His wiring guide looks like this:
If someone could please help and explain to me how i could get this to work or to come up with a better method for powering and charging the batteries that would be so greatly appreciated!!
Kind regards,
Charlie