DMA-48V/75A开关电源模块的研制
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摘要
本文介绍了DMA-48V/75A开关电源模块的结构、原理及设计过程等。
本文设计的DMA-48V/75A开关电源模块由输入级电路、单相功率因数校正PFC电路、全桥软开关DC-DC变换电路、输出滤波电路、无主从自动均流电路、单端反激型辅助电源电路等部分组成。
本文通过对单相功率因数校正PFC电路原理的阐述,提出了一种实用控制器的参数选择方法;并根据工程实际经验,对电路进行了简化;由于采用了低损耗的无源吸收电路,开关管的关断损耗得以大大降低。
本文通过对全桥DC-DC变换器的控制策略的分类,提出了一种新型的控制方法—“相位延迟控制”。利用在变压器的副边上加入一个简单LCD辅助电路,实现了滞后臂的零电流开通和关断。
本文设计的DMA-48V/75A开关电源模块具有多种保护措施,如过压、过流、过温、输出欠压等,使得系统的可靠性得到提高。
根据本文设计的DMA-48V/75A开关电源模块所组成的通信电源系统,各模块之间负载电流可通过无主从方式自动均流,所有模块均可以带电插拔,从而可以方便地实现系统扩容,增加了系统的冗余度。
由于模块工作在高频开关状态,模块具有体积小、重量轻、可靠性高等一系列优点。
This paper presents the structure, the principle and the design of DMA-48V/75A switching mode communication power system. The system consists of the AC input stage, single phase PFC, main inverter, output low-pass filter, auxiliary power supply, and load current sharing circuit, etc.
The operation principle and practical design method of the PFC stage is introduced. This method is based on the theoritical analysis, but it’s simplied according to the application. The system is both stable and reliable. A low power loss passive snubber is added to the Boost converter, therefore the switching losses are reduced.
By the classification of the typical control method,”phase overlapped control”(POC)is proposed. Low cost, high reliability are its advantages. ZCS of the lagging leg is realized by adding a simple LCD circuit to the transformer’s secondary side.
System exceptions, such as over-voltage, over-current, over-temprature, DC under-voltage, etc, are dealt with by carefully disigned protection circuits. These circuits provide various functions to protect the system, including soft start, drive signals mask, and power supply shut down.
By using master-slave load current sharing technich, modules can be parrallzed easily, thus capacity-expansion is very convenient.
Because of the high frequency operation, this switching mode power supply have many advantages:light weight,small physical size,high reliability,etc.
本文设计的DMA-48V/75A开关电源模块由输入级电路、单相功率因数校正PFC电路、全桥软开关DC-DC变换电路、输出滤波电路、无主从自动均流电路、单端反激型辅助电源电路等部分组成。
本文通过对单相功率因数校正PFC电路原理的阐述,提出了一种实用控制器的参数选择方法;并根据工程实际经验,对电路进行了简化;由于采用了低损耗的无源吸收电路,开关管的关断损耗得以大大降低。
本文通过对全桥DC-DC变换器的控制策略的分类,提出了一种新型的控制方法—“相位延迟控制”。利用在变压器的副边上加入一个简单LCD辅助电路,实现了滞后臂的零电流开通和关断。
本文设计的DMA-48V/75A开关电源模块具有多种保护措施,如过压、过流、过温、输出欠压等,使得系统的可靠性得到提高。
根据本文设计的DMA-48V/75A开关电源模块所组成的通信电源系统,各模块之间负载电流可通过无主从方式自动均流,所有模块均可以带电插拔,从而可以方便地实现系统扩容,增加了系统的冗余度。
由于模块工作在高频开关状态,模块具有体积小、重量轻、可靠性高等一系列优点。
This paper presents the structure, the principle and the design of DMA-48V/75A switching mode communication power system. The system consists of the AC input stage, single phase PFC, main inverter, output low-pass filter, auxiliary power supply, and load current sharing circuit, etc.
The operation principle and practical design method of the PFC stage is introduced. This method is based on the theoritical analysis, but it’s simplied according to the application. The system is both stable and reliable. A low power loss passive snubber is added to the Boost converter, therefore the switching losses are reduced.
By the classification of the typical control method,”phase overlapped control”(POC)is proposed. Low cost, high reliability are its advantages. ZCS of the lagging leg is realized by adding a simple LCD circuit to the transformer’s secondary side.
System exceptions, such as over-voltage, over-current, over-temprature, DC under-voltage, etc, are dealt with by carefully disigned protection circuits. These circuits provide various functions to protect the system, including soft start, drive signals mask, and power supply shut down.
By using master-slave load current sharing technich, modules can be parrallzed easily, thus capacity-expansion is very convenient.
Because of the high frequency operation, this switching mode power supply have many advantages:light weight,small physical size,high reliability,etc.
引文
[1]阮新波,严仰光,脉宽调制DC/DC全桥变换器的软开关技术,北京:科学出版社,1999
[2]王聪,软开关功率变换器及其应用,北京:科学出版社,2000
[3]阮新波,严仰光,直流开关电源的软开关技术,北京:科学出版社,2000
[4]蔡宣三,龚绍文,高频功率电子学,北京:科学出版社,1993
[5]叶治政,叶靖国,开关稳压电源,北京:高等教育出版社,1989
[6]张廷鹏,通信用高频开关电源,北京:人民邮电出版社,1997
[7]何希才,新型开关电源及其应用,北京:人民邮电出版社,1996
[8]徐曼珍,程控数字通信系统基础电源设备,北京:人民邮电出版社,1995
[9]丁道宏,电力电子技术,北京;航空工业出版社,1992
[10]中华人民共和国信息产业部,YD/T 731-2002,通信用高频开关整流器,北京:信息产业部电信研究院,2002-02-01
[11] Dong-Yun Lee ,An Improved Full-Bridge Zero-Voltage-Transition PWM DC/DC Converter with Zero-Voltage/Zero-Current Switching of the Auxiliary Switches,IA,2000,4(2):558-566
[12] Zheren Lai,A Family of Continuous-Conducting-Mode Power Factor Correction Controllers Based on the General Pulse-Width-Modulator, 1998,3(3):501-509
[13] Jung-Guo Cho ,Zero-voltage and zero-current full bridge PWM converter for high power applications, PESC 1994, 102-108
[14] Ruan Xinbo ,An improved phase-shifted zero-voltage and zero-current switching PWM converter,etl,APEC 1998,811-815
[15] Jung-Goo,Zero-voltage and Zero-Current-Switching Full-Bridge PWM Converter Using a Simple Auxiliary Circuit, IA,1998,33(4):15-20
[16] Jung-Guo Cho, Zero-Voltage and zero-current switching full bridge PWM converter using secondary active clamp,IA, 1999,4(4):601-607
[17] UNITRODE Product&Applications Handbook,1995-1996
[18] K.H. Liu and Y.L.Lin,Current waveform distortion in power factor corrector , PESC ,1989,825-829
[19] K. K. Sen and A. E. Emanuel ,Unity power factor single phase power conditioning ,PESC 1987,516-524
[20]黄济青,崔振义,候秀英,软开关移相桥式直流变换器的研讨,通信电源技术,1997,(2):20~23
[21]阮新波,严仰光,移相控制零电压开关PWM变换器的分析,电力电子技术,1998,(2):20~24
[22]黄永富,APFC电感的设计和磁芯的选择,电源世界,2000,(4):13~15
[23]郑国青,新型倍流整流器电路的研究,通信电源技术,2002,(4):28~32
[24]还芳,徐志新,谢勇刚,移相全桥ZVZCS变换器及数字控制研究,通信电源技术,2003,(2):17~21
[25]康达电子器材厂,铁氧体磁芯书册,南京: 1995
[26]梁奇峰,黄少先,改进的单级功率因数校正AC/DC变换器的拓扑综述,电源技术应用,2004,(2):13~15
[27]李广全,王志强,单级PFC变换器的功率因数校正效果的研究,电源技术应用,2003,(11):17~20
[28]徐小杰,侯振义,无输入电压检测的平均电流型功率因数校正,电源技术应用,2003,(5):14~16
[29]王俊才,李明亮,UC3852的特性及其在功率因数校正电路中的应用,电子元器件应用,2002,(8):32~35
[30]杨宾峰,功率因数校正电路的分析与设计:[硕士学位论文],西安:空军工程大学,2001
[2]王聪,软开关功率变换器及其应用,北京:科学出版社,2000
[3]阮新波,严仰光,直流开关电源的软开关技术,北京:科学出版社,2000
[4]蔡宣三,龚绍文,高频功率电子学,北京:科学出版社,1993
[5]叶治政,叶靖国,开关稳压电源,北京:高等教育出版社,1989
[6]张廷鹏,通信用高频开关电源,北京:人民邮电出版社,1997
[7]何希才,新型开关电源及其应用,北京:人民邮电出版社,1996
[8]徐曼珍,程控数字通信系统基础电源设备,北京:人民邮电出版社,1995
[9]丁道宏,电力电子技术,北京;航空工业出版社,1992
[10]中华人民共和国信息产业部,YD/T 731-2002,通信用高频开关整流器,北京:信息产业部电信研究院,2002-02-01
[11] Dong-Yun Lee ,An Improved Full-Bridge Zero-Voltage-Transition PWM DC/DC Converter with Zero-Voltage/Zero-Current Switching of the Auxiliary Switches,IA,2000,4(2):558-566
[12] Zheren Lai,A Family of Continuous-Conducting-Mode Power Factor Correction Controllers Based on the General Pulse-Width-Modulator, 1998,3(3):501-509
[13] Jung-Guo Cho ,Zero-voltage and zero-current full bridge PWM converter for high power applications, PESC 1994, 102-108
[14] Ruan Xinbo ,An improved phase-shifted zero-voltage and zero-current switching PWM converter,etl,APEC 1998,811-815
[15] Jung-Goo,Zero-voltage and Zero-Current-Switching Full-Bridge PWM Converter Using a Simple Auxiliary Circuit, IA,1998,33(4):15-20
[16] Jung-Guo Cho, Zero-Voltage and zero-current switching full bridge PWM converter using secondary active clamp,IA, 1999,4(4):601-607
[17] UNITRODE Product&Applications Handbook,1995-1996
[18] K.H. Liu and Y.L.Lin,Current waveform distortion in power factor corrector , PESC ,1989,825-829
[19] K. K. Sen and A. E. Emanuel ,Unity power factor single phase power conditioning ,PESC 1987,516-524
[20]黄济青,崔振义,候秀英,软开关移相桥式直流变换器的研讨,通信电源技术,1997,(2):20~23
[21]阮新波,严仰光,移相控制零电压开关PWM变换器的分析,电力电子技术,1998,(2):20~24
[22]黄永富,APFC电感的设计和磁芯的选择,电源世界,2000,(4):13~15
[23]郑国青,新型倍流整流器电路的研究,通信电源技术,2002,(4):28~32
[24]还芳,徐志新,谢勇刚,移相全桥ZVZCS变换器及数字控制研究,通信电源技术,2003,(2):17~21
[25]康达电子器材厂,铁氧体磁芯书册,南京: 1995
[26]梁奇峰,黄少先,改进的单级功率因数校正AC/DC变换器的拓扑综述,电源技术应用,2004,(2):13~15
[27]李广全,王志强,单级PFC变换器的功率因数校正效果的研究,电源技术应用,2003,(11):17~20
[28]徐小杰,侯振义,无输入电压检测的平均电流型功率因数校正,电源技术应用,2003,(5):14~16
[29]王俊才,李明亮,UC3852的特性及其在功率因数校正电路中的应用,电子元器件应用,2002,(8):32~35
[30]杨宾峰,功率因数校正电路的分析与设计:[硕士学位论文],西安:空军工程大学,2001