I am not completely familiar with supercapacitors, so I will leave this aspect of the investigation alone, however, I wonder if the label is true or if it's just a regular li-ion battery. The capacitor had a signal conditioner atop it, likely for voltage or current regulation.
I was not aware that supercapacitors were utilized in cheap devices, let alone Bluetooth headset devices. The most interesting discovery in this disassembly was the use of a supercapacitor. Below are several marketed photos of the headset. The device battery capacity is 110 mAh and the device uses a classic micro USB plug to charge. They operate under Bluetooth 4.1 they have two audio drivers a microphone for talking and a button module with headset, hands-free, and audio/visual remote control profiles. The headphones used here are the Phaiser BHS-730 Bluetooth Headphones. These circuits are necessary to reproduce the original audio signal that is sent from the device, which is subsequently decoded on the headphone side and amplified for human auditory enjoyment. Bluetooth headphones additionally require conditioning circuits for batteries, amplification, and signal processing. Traditional wired headphones consist of a pair of audio drivers and a plug that connects to a preamp device (cell phone, iPod, stereo, etc.). As one might expect, the headphones consisted of two small audio drivers, a lithium-ion supercapacitor (rechargeable battery), and a Bluetooth system on chip (SoC). Incidentally, I decided to take them apart and investigate the components. My favorite pair of (cheap) Bluetooth headphones recently lost their ability to hold a charge.
0 kommentar(er)
