发明申请
US20080122422A1 Parallel Current Mode Control Using a Direct Duty Cycle Algorithm with Low Computational Requirements to Perform Power Factor Correction
失效
使用具有低计算要求的直接占空比算法进行功率因数校正的并联电流模式控制
- 专利标题： Parallel Current Mode Control Using a Direct Duty Cycle Algorithm with Low Computational Requirements to Perform Power Factor Correction
- 专利标题（中）： 使用具有低计算要求的直接占空比算法进行功率因数校正的并联电流模式控制
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申请号： US11951228申请日： 2007-12-05
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公开(公告)号： US20080122422A1公开(公告)日： 2008-05-29
- 发明人: Wanfeng Zhang , Yan-Fei Liu , Bin Wu
- 申请人： Wanfeng Zhang , Yan-Fei Liu , Bin Wu
- 申请人地址： US CA Los Gato
- 专利权人： IWATT INC.
- 当前专利权人： IWATT INC.
- 当前专利权人地址： US CA Los Gato
- 主分类号： H02M3/156
- IPC分类号： H02M3/156
摘要：
A method and apparatus to implement parallel current mode control that is suitable for digital and analog implementation. A duty cycle algorithm is composed of a voltage term and a parallel current term which depends on the inductor current change between the inductor current value at the beginning of a switching cycle and the reference inductor current value at the end of that switching cycle. Parallel current mode control can be applied to all DC-DC converters, including both non-isolated and isolated topologies. It can also be applied to AC-DC converters with power factor correction.
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