PowerPSoC固件設計指南

　　賽普拉斯PowerPSoC”提供了一種靈活的方式來實現廣泛的HB LED控制器。本文對流程進行了詳細的介紹。

　　PowerPSoC?介紹一種新的電源管理系統的LED照明解決方案和其他高功率應用的設計標準。該裝置將具有強大的PSoC?核心四通道恒流驅動。本文介紹了PowerPSoC和PowerPSoC，比較了傳統設計控制器的方法。其次，詳細描述了如何創建一個功能的設計，探討一種基于PowerPSoC恒流驅動的設計方面，使用預先配置的用戶模塊和固件。

　　柏PSoC系列器件是可編程的混合信號很好的建立，基于微控制器的設備。傳統的電源管理系統實施的方法（例如，高亮度LED照明系統）包括使用一個類似的，片上系統的界面與高功率分立器件如恒流驅動和MOSFET開關。

　　In PowerPSoC， the classic PSoC core is combined with high performance power electronics. The result is an integrated， intelligent power electronics solution in a single QFN package. The intent of PowerPSoC is to significantly reduce the cost， part count， and board space of implementing power management systems while retaining performance. This family of devices （CY8CLED04D01） combines up to four independent channels of constant current drivers. These drivers feature hysteretic controllers with the Programmable System-on-Chip? containing an 8-bit microcontroller， configurable digital and analog peripherals， and embedded flash memory.

　　PowerPSoC is designed to operate at voltages from 7 V to 32 V， drive up to 1 A of current using internal MOSFET switches， and drive over 1 A with external MOSFETs. For added flexibility， PowerPSoC supports the commonly used power management topologies such as buck， boost， and buck-boost to meet the variety of application requirements. The control loop formed by the internal current sense amplifiers and hysteretic controllers （featuring DACs and high speed comparators） allow a maximum switching frequency of 2 MHz. Hardware modulators ? including the Cypress patented PrISM （Precision Illumination Signal Modulation） ? interface with the constant current driver channels， and enable the modulation of high brightness LEDs.