基于dsPIC33FJ设计的PSFB砖形DC-DC转换器技术
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This reference design works with telecom input range 36V – 76V DC and provides 12V with 200W power. Designed with planar magnetics, this reference design implements various non-linear techniques, which improves the performance and efficiency.
1/4砖形DC/DC转换器参考设计主要特性：
Primary and Secondary MOSFET control
Active Current Share
Remote ON/OFF
Programmable soft start
Controlled Fall time
Voltage,Current,Temperature monitoring Protection
Configurable output voltage
Full Digital Control
1/4砖形DC/DC转换器参考设计指标：
Industry standard Quarter-brick (36.8 x 58.4 x 11.4 mm)
Wide input range 36V -76V
Output Voltage: 12V
Output Current: 17A
Output Power : 200W
Efficiency greater than 93%
1500 Vdc input to output isolation
图12。1/4砖形DC/DC转换器参考设计外形图
图13。1/4砖形DC/DC转换器的dsPIC® DSC资源图
图14。PSFB 1/4砖形DC/DC转换器电路图（1）
图15。PSFB 1/4砖形DC/DC转换器电路图（2）
图16。PSFB 1/4砖形DC/DC转换器电路图（3）
图17。PSFB 1/4砖形DC/DC转换器电路图（4）
图18。基板电路图
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