The TB4420 power amplifier circuit is a high-gain, low-noise high-power amplifier circuit. The circuit is internally equipped with a signal-cut type load short-circuit protection circuit. It can use 2 ohm load impedance. The output power is large, the voltage gain is high, and the harmonic distortion is low. The output noise is small. Therefore, it is suitable for car radios, audio players, portable, desktop recorders, etc.
This article refers to the address: http://
It's a kind of mini Power Bank with intelligent LED digital display shows power left,the high and real capacity increase battery cycle life,and makes your phone always in power.It's internal intelligent PCB board makes this mobile power bank in full protection such as over charge protection,over discharge protection,smart IC protection and temperature protection. Marvelous thinner thickness design,give you a relaxed and comfortable experience,comparing to the traditional heavy power bank,this mobile phone charger is much more convenient to take and use.Besides,it's mirror design and optical aesthetics gives you a wonderful visual and touch enjoyment,round arc appearance,smooth and dedicate texture,light and slim all these features shows competitive advantages than any other power banks.It's a kind of pocket power bank,super light and slim, you deserve it!
Hot Sale Phone Battery,Polymer Phone Battery,Wireless Car Charger,Samsung Phone Battery,Power Bank Professional
Shenzhen Hequanqingnuo Electronic Technology Co., Ltd. , https://www.hqqnbattery.com