发明授权
- 专利标题: Hysteretic buck DC-DC converter
- 专利标题(中): 迟滞降压型DC-DC转换器
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申请号: US14205025申请日: 2014-03-11
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公开(公告)号: US09455626B2公开(公告)日: 2016-09-27
- 发明人: Dashun Xue , William MacLean
- 申请人: Micrel, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Micrel, Inc.
- 当前专利权人: Micrel, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Van Pelt, Yi & James LLP
- 主分类号: H02M3/158
- IPC分类号: H02M3/158 ; H02M3/156 ; H02M1/00
摘要:
A buck switching regulator includes a feedback control circuit using a four-input comparator to regulate the output voltage to a substantially constant level with reduced voltage offset and with fast transient response. In some embodiments, the buck switching regulator uses the four-input comparator to compare a first feedback signal without ripple and a second feedback signal with injected ripple components to a reference level. The four-input comparator generates an output signal to control the switching of the power switches. The buck switching regulator generates an output voltage with increased accuracy and fast transient response. Furthermore, the buck switching regulator can be used with output capacitor having any value of ESR.
公开/授权文献
- US20150263617A1 HYSTERETIC BUCK DC-DC CONVERTER 公开/授权日:2015-09-17