Microchip dsPIC33F HBLED数字信号控制解决方案

1、microchip dspic33f hbled数字信号控制解决方案公司的ds33fj系列16位数字信号控制器(dsc),cpu工作高达40,支持多回路数字和其它数字功率转换应用如ac/dc转换器,pfc,ups,嵌入电源控制器,断路器等.本文介绍了dspic33fj系列主要特性以及采纳dspic33fj系列的 hbled照明开发套件主要特性,方框图,材料清单和布局图.dspic33fjxxgsxxx smps & digital power conversion 16-bit digital signal controller. these devices offer feature

2、s supporting common, multi-loop digital switch-mode power supplies (smps) and other digital power-conversion applications such as: ac to dc converters dc to dc converters power factor correction (pfc) uninterruptible power supply (ups) inverters embedded power-supply controllers circuit breakers, ar

3、c fault detectiondspic33fj系列主要特性:cpuup to 40 mips operation (at 3.0-3.6v)16 x 16 fractional/integer hardware multiply, single cycle executionsingle-cycle multiply and accumulate32-bit by 16-bit hardware dividerc compiler optimized instruction set systeminternal oscillator and phase-locked loop (pll)

4、 with 120 mhz vcoon-chip voltage regulatorjtag boundary scan and flash memory program supportfail-safe clock monitor allows safe shutdown if clock failswatchdog timer with separate rc oscillator power managed modesrun, idle and sleep modesmultiple, switchable clock modes for optimum performance and

5、power management high-speed module featuresup to four pwm generators with four to eight outputsdead time for rising and falling edgesduty cycle resolution of 1.04 ns for dead-time, phase shift, and frequencysupported pwm modes: standard edge-aligned, true independent output, complementary, center-al

6、igned, push-pull, multi-phase, variable phase, fixed off-time, current reset, and current-limitpwmxl, pwmxh output pin swappingpwm4h, pwm4l pins remappableon-the-fly pwm frequency, duty cycle and phase shift changes high-speed analog comparatorup to four analog comparators20 ns response time10-bit f

7、or each analog comparatordacout pin to provide dac output high-speed 10-bit10-bit resolutionup to 12 input channels grouped into six conversion pairs4 msps or 2 msps conversion rateindependent trigger source section for each analog input conversion pair peripheralsuart module with lin and irda suppo

8、rtspi module with fifoi2c modules with master and slave modesup to 3 16-bit timer modulesup to 2 input capture and 2 output compare / pwms “gs” series of dspic digital signal controllers (dscs) in controlling multiple high brightness (hb) leds. the development kit uses separate daughter cards for both buck and boost applications.the led lighting development kit contains the foll