发明授权
US09088211B2 Buck-boost converter with buck-boost transition switching control
有权
降压 - 升压转换器具有降压 - 升压转换开关控制
- 专利标题： Buck-boost converter with buck-boost transition switching control
- 专利标题（中）： 降压 - 升压转换器具有降压 - 升压转换开关控制
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申请号： US14177558申请日： 2014-02-11
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公开(公告)号： US09088211B2公开(公告)日： 2015-07-21
- 发明人: Vadim V. Ivanov , Rahul Prakash
- 申请人： Texas Instruments Incorporated
- 申请人地址： US TX Dallas
- 专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人地址： US TX Dallas
- 代理商 Andrew Viger; Frank D. Cimino
- 主分类号： G05F1/00
- IPC分类号： G05F1/00 ; H02M3/158
摘要：
A buck-boost regulation methodology operable, in one embodiment, with a single inductor, four-switch (S1-S4) buck-boost regulator configured for DCM. Buck-boost transition switching control is operable when inductor charge time exceeds a max charge time, and inductor discharge time exceeds a max discharge time, and includes: (a) during charge transition cycles, at the end of the max charge time, if IL is less than a predetermined peak current IL—MAX, switching S2 on (grounding the output side of the inductor) and S4 off, causing IL to increase (a rapid S1S2 charging current ramp), until IL reaches IL—MAX, and (b) during discharge transition cycles, at the end of the max charge time, if IL is greater than zero, switching S1 off and S3 on (grounding the input side of the inductor), causing IL to increase (a rapid S3S4 IL discharging current ramp), until IL reaches zero.
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