UC3907 LOAD SHARE IC SIMPLIFIES PARALLEL POWER SUPPLY DESIGN
UC3907 LOAD SHARE IC SIMPLIFIES PARALLEL POWER SUPPLY DESIGN
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UC3907 负载共享 IC 简化并行电源设计
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
M. Jordan
中科院分区：
文献类型：
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作者：
M. Jordan
许多电源制造商发现制造标准模块化电源在经济上是可行的，并且可以轻松并联以适应更高电流的应用。如果没有采取特殊措施在并联电源之间平均分配负载电流，则一个或多个单元将占用负载电流，而使其他单元基本闲置。这会导致特定单元上产生更大的热应力并降低系统可靠性。例如，可靠性预测表明，在高于环境温度 50 度的条件下运行的组件的使用寿命是在高于环境温度 25 度的条件下运行的同一组件的六分之一[1]。
Many power supply manufacturers have found it economically feasible to make standard modular power supplies which are easily paralleled for higher current applications. If special provisions are not made to equally distribute the load current among the paralleled supplies, then one or more units will hog the load current leaving the other units essentially idle. This results in greater thermal stresses on specific units and a reduction in the system reliability For example, reliability predictions will indicate that a component operating at 50 degrees above ambient will have one-sixth the lifetime of the same component operating at 25 degrees above ambient [1].