新的LED照片閃光燈驅動程序智能手機攝像頭提高圖像質量

　　在智能手機和其他移動設備的攝像頭的廣泛采用，加上高質量的消費預期，銳利的圖像是簡單的設計，驅動需要較小的尺寸，并降低元件數量，許多智能手機移動整合前、后攝像頭特別。

　　手機攝像頭將增加約16億個單位在2011到22億多臺，2015，占全球移動電話92%，根據Gartner公司的市場研究公司還發現，手機的一個額外的15%將有兩個相機拍人像照片或使視頻聊天。

　　LED驅動廠商正在開發新的設計，以滿足這些需求，隨著所有類型的集成攝像機移動設備的需求不斷攀升。一些供應商甚至開發創新的架構以改善圖片質量。

　　一個例子是AMS AG的as3630照片Flash驅動程序（圖1），利用電力從超級電容器。這是說生產4x明亮的閃光輸出相比，最閃光的系統在智能手機領域，從而轉化為清晰的圖像。

　　Figure 1： The ams AS3630 uses an I2C interface for current and timing adjustments to set the end of charge voltage and measure the Supercap and LED parameters through the internal ADC. A dedicated TXMASK/TORCH input can be used for a torch button or to reduce the battery current if a RF power amplifier （PA） is operated at the same time （TX Masking）， （Courtesy of ams）。

　　Here are the details. The AS3630 can drive up to 8 A current through the flash system， which means pin-sharp image taking and support for faster shutter speeds. Ams noted that photos of fast-moving objects in dark conditions， which previously would have had motion artifacts， might now be captured in detail. It also eliminates glare and discomfort because even short flash durations as low as 10 ms provide sufficient light， according to ams.