Holy country is small fill chip quickly
When wireless earphone charges, charge the curve is change, when n is too low input voltage is met a bit taller, when n is exorbitant, input voltage also can become low, can solve the calorific problem that when batteries charges, brings so, and can decrease charge the loss of box batteries. Recently, I love frequency net to tear open solution fly be proud really wireless ear hangs FiiO UTWS5, charge in its the box is in-house, I loved frequency net to discover power source of holy state small SGM41563 4.2V manages chip, let us treat detailed condition next.
FiiO of brand of frequency of domestic senior HiFi flies be proud use oneself to be in for years the technology of frequency domain and experience, rolled out earphone of much money TWS, among them FiiO UTWS5 is among them one of, its charge the box used black square to design, every horn uses dambered surface excessive, add grind arenaceous simple sense, great promotion grasp held intimacy. The acting classical design before earphone continued, use coating of rice of close skin accept, optimized consumer adorn experience.
Will charge after the box tears open solution to analyse, can understand its interior to install 800mAh lithium battery; Charge box support has line and wireless two kinds of means input power source, wired used holy country chip of source control of small SGM41563 report is used at synchronous step up and linear to charge, wireless use volt to amount to NU1680 radio source receiver, still carried processor of UM8005 of an An Xinwei, use at data processing to mix overall control.
Power source of small SGM41563 4.2V of SGM emperor state manages chip, buy linear charges inside and synchronous step up, use at 4.2V batteries to charge. Had 5 kinds to charge voltage option: 4.2V/4.25V/4.3V/4.35/4.4V, and can constant current / constant voltage undertakes charging, interior still installed overheating protection.
SGM emperor country is small chart of SGM41563 detailed data.
According to before the report that tear open solution can understand, have fly be proud, riverside of fierce Ma, flying benefit, OPPO, big border wait for well-known trademark to introduce Guo Shengbang’s small chip product.
About holy state small
Product of holy nation small company enclothes signal catenary and power source to run two big fields, have 25 kinds big more than 3500 marketable model, include converter of sensor of switch of drive of bumper of amplifier of amplifier of of all kinds operation and comparator, frequency power, video, line, imitate, temperature, modulus (ADC) , digital-to-analogue converter (DAC) , circuit of n changeover chip, interface, tension is fiducial chip, little logistic chip, LDO, microprocessor. Product function and character are congener to manufacturer of chip of mark world top-ranking imitate product, index of partial key function is surmounted somewhat, apply extensively at communication equipment, consumption kind the domain such as instrument of industrial control, medical treatment and electron, car electron, and the rising market such as content couplet net, new energy resources and artificial intelligence.