PowerPSoC固件设计指南

　　PowerPSoC固件设计指南

　　赛普拉斯PowerPSoC”提供了一种灵活的方式来实现广泛的HB LED控制器。本文对流程进行了详细的介绍。

　　PowerPSoC®介绍一种新的电源管理系统的LED照明解决方案和其他高功率应用的设计标准。该装置将具有强大的PSoC®核心四通道恒流驱动。本文介绍了PowerPSoC和PowerPSoC，比较了传统设计控制器的方法。其次，详细描述了如何创建一个功能的设计，探讨一种基于PowerPSoC恒流驱动的设计方面，使用预先配置的用户模块和固件。

　　柏PSoC系列器件是可编程的混合信号很好的建立，基于微控制器的设备。传统的电源管理系统实施的方法（例如，高亮度LED照明系统）包括使用一个类似的，片上系统的界面与高功率分立器件如恒流驱动和MOSFET开关。

　　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.