Invention Grant
US09130469B2 Primary-side feedback controlled AC/DC converter with an improved error amplifier
有权
具有改进误差放大器的初级侧反馈控制AC / DC转换器
- Patent Title: Primary-side feedback controlled AC/DC converter with an improved error amplifier
- Patent Title (中): 具有改进误差放大器的初级侧反馈控制AC / DC转换器
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Application No.: US13610011Application Date: 2012-09-11
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Publication No.: US09130469B2Publication Date: 2015-09-08
- Inventor: Jianpei Zhu
- Applicant: Jianpei Zhu
- Applicant Address: CN Shenzhen
- Assignee: FREMONT MICRO DEVICES (SZ) LIMITED
- Current Assignee: FREMONT MICRO DEVICES (SZ) LIMITED
- Current Assignee Address: CN Shenzhen
- Agency: Locke Lord LLP
- Agent Tim Tingkang Xia, Esq.
- Priority: CN201210014066 20120117
- Main IPC: H02M3/335
- IPC: H02M3/335
Abstract:
An error amplifier, a controller using the error amplifier, and a primary-side feedback controlled AC/DC converter using the controller are discussed. When the output voltage of the primary-side feedback controlled AC/DC converter according to present invention changes, the alternating current path enjoys a fast response and adjusts the output voltage quickly with a lower precision, avoiding large voltage fluctuate, then the direct current path functions slowly to reduce equivalent output error. In such a way, the output voltage precision is enhanced while the stability of the primary-side feedback controlled AC/DC converter is maintained.
Public/Granted literature
- US20130181772A1 PRIMARY-SIDE FEEDBACK CONTROLLED AC/DC CONVERTER WITH AN IMPROVED ERROR AMPLIFIER Public/Granted day:2013-07-18
Information query
IPC分类:
