专利内容由知识产权出版社提供
专利名称：DC-DC CONVERTER WITH AUTOMATIC
INDUCTOR DETECTION FOR EFFICIENCYOPTIMIZATION
发明人：Gerhard Thiele,Konrad Wagensohner,Josy
Bernard
申请号：US13028034申请日：20110215
公开号：US20110204860A1公开日：20110825
专利附图：
摘要：A DC-DC converter has high-side power and low-side power transistors
connected in series between supply terminals, an inductor connected between the powertransistors and an output terminal. A comparator compares the output voltage with areference voltage. A detector detects when inductor current approaches zero. A timer isconfigured to determine a minimum ON time of the high-side power transistor optimizedfor a particular value inductor. A current detector detects current flow in the back-gatediode of the low-side power transistor. timer is configured to determine an overridingON time in response to the back-gate current detector. Logic provides control signals togate power transistors in response to the comparator and the longer one of theminimum ON time and the overriding ON time. The minimum ON time for the high-sidepower transistor is adjusted in response to the actual inductance of the inductor.
申请人：Gerhard Thiele,Konrad Wagensohner,Josy Bernard
地址：Dachau DE,Mauern DE,Freising DE
国籍：DE,DE,DE
更多信息请下载全文后查看
