PowerPSoC固件設(shè)計(jì)指南

　　賽普拉斯PowerPSoC”提供了一種靈活的方式來(lái)實(shí)現(xiàn)廣泛的HB LED控制器。本文對(duì)流程進(jìn)行了詳細(xì)的介紹。

　　PowerPSoC?介紹一種新的電源管理系統(tǒng)的LED照明解決方案和其他高功率應(yīng)用的設(shè)計(jì)標(biāo)準(zhǔn)。該裝置將具有強(qiáng)大的PSoC?核心四通道恒流驅(qū)動(dòng)。本文介紹了PowerPSoC和PowerPSoC，比較了傳統(tǒng)設(shè)計(jì)控制器的方法。其次，詳細(xì)描述了如何創(chuàng)建一個(gè)功能的設(shè)計(jì)，探討一種基于PowerPSoC恒流驅(qū)動(dòng)的設(shè)計(jì)方面，使用預(yù)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(hào)很好的建立，基于微控制器的設(shè)備。傳統(tǒng)的電源管理系統(tǒng)實(shí)施的方法（例如，高亮度LED照明系統(tǒng)）包括使用一個(gè)類(lèi)似的，片上系統(tǒng)的界面與高功率分立器件如恒流驅(qū)動(dòng)和MOSFET開(kāi)關(guān)。

　　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.