现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
24期
138-141,145
,共5页
薛秀云%宋淑然%吕永青%郑逸生
薛秀雲%宋淑然%呂永青%鄭逸生
설수운%송숙연%려영청%정일생
AC-DC变换%功率因数校正%UCC28019%拓扑结构
AC-DC變換%功率因數校正%UCC28019%拓撲結構
AC-DC변환%공솔인수교정%UCC28019%탁복결구
AC-DC conversion%power factor correction%UCC28019%topology
该单相AC?DC变换电路以有源功率因数控制器UCC28019为核心，STM32F103做主控芯片，采用主控芯片片上DAC调节UCC28019电压误差放大器反馈端，控制输出电压稳定输出；设计功率因数测量电路、输出保护电路、功率因数调整电路等电路模块。经测试，系统输入电压为24 V时，输出2 A电流时可稳定输出36 V电压，负载调整率为0.02%，电压调整率为0.028%，功率因数测量最大误差为0.02，过流保护动作电流为2.54 A，交流输入侧功率因数校正后最高达99.9%，转换效率达96.7%，功率因数在0.8~1.0稳定可调。
該單相AC?DC變換電路以有源功率因數控製器UCC28019為覈心，STM32F103做主控芯片，採用主控芯片片上DAC調節UCC28019電壓誤差放大器反饋耑，控製輸齣電壓穩定輸齣；設計功率因數測量電路、輸齣保護電路、功率因數調整電路等電路模塊。經測試，繫統輸入電壓為24 V時，輸齣2 A電流時可穩定輸齣36 V電壓，負載調整率為0.02%，電壓調整率為0.028%，功率因數測量最大誤差為0.02，過流保護動作電流為2.54 A，交流輸入側功率因數校正後最高達99.9%，轉換效率達96.7%，功率因數在0.8~1.0穩定可調。
해단상AC?DC변환전로이유원공솔인수공제기UCC28019위핵심，STM32F103주주공심편，채용주공심편편상DAC조절UCC28019전압오차방대기반궤단，공제수출전압은정수출；설계공솔인수측량전로、수출보호전로、공솔인수조정전로등전로모괴。경측시，계통수입전압위24 V시，수출2 A전류시가은정수출36 V전압，부재조정솔위0.02%，전압조정솔위0.028%，공솔인수측량최대오차위0.02，과류보호동작전류위2.54 A，교류수입측공솔인수교정후최고체99.9%，전환효솔체96.7%，공솔인수재0.8~1.0은정가조。
With controller chip STM32F103,active Power Factor Controller UCC28019 as a core of the system,the voltage error amplifier feedback of the UCC28019 is adjusted by means of on?chip DAC in STM32F103 to achieve a stable output vol?tage. The power factor measurement circuit,output protection circuit,power factor adjustment circuit were designed. Test results show that when input voltage is 24 V and output current is 2 A, the system can output 36 V voltage stably,its load regulation rate is 0.02%,voltage regulation rate is 0.028%,the maximum error of power factor measurement is 0.02,overcurrent protec?tion operating current is 2.54 A, conversion efficiency is 96.7%,power factor is adjustable from 0.8 to 1.0 stable.
