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Method and circuit for optimizing efficiency in a high frequency switching DC-DC converter

机译：在高频开关直流-直流转换器中优化效率的方法和电路

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摘要

A switch control (12) circuit which optimizes the efficiency of a buck or boost converter by eliminating simultaneous conductive states of the main power transistor (16) and the synchronous rectifying transistor (18). Power dissipation of the synchronous rectifying transistor (18) is minimized by reducing the amount of time (Td1 and Td2) that the intrinsic body diode of transistor (18) conducts current. Charge control circuit (53) is utilized for boost converter operation and charge control circuit (118) is utilized for buck converter operation.

机译：开关控制（ 12 ）电路，通过消除主功率晶体管（ 16 ）和同步整流晶体管（ 16 ）的同时导通状态来优化降压或升压转换器的效率 18 ）。通过减少本征体的时间量（Td 1 和Td 2 ），可将同步整流晶体管（ 18 ）的功耗降至最低晶体管（ 18 ）的二极管传导电流。充电控制电路（ 53 ）用于升压转换器工作，而充电控制电路（ 118 ）用于降压转换器工作。 展开▼

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公开/公告号US6515463B2

专利类型

公开/公告日2003-02-04

原文格式PDF

申请/专利权人 SEMICONDUCTOR COMPONENTS INDUSTRIES LLC;
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申请/专利号US20010825759

发明设计人 HOK SUN LING;
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申请日2001-04-05

分类号G05F31/60;

国家 US

入库时间 2022-08-22 00:04:26

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3. Method and circuit for optimizing efficiency in a high frequency switching DC-DC converter [P] . 美国专利： US2002145891A1 . 2002-10-10

机译：在高频开关直流-直流转换器中优化效率的方法和电路

4. Method for enhancing conversion efficiency at low load of a step-down DC-DC switching converter and related circuit [P] . 美国专利： US8922180B2 . 2014-12-30

机译：降压型dc-dc开关变换器低负载时的转换效率提高方法及相关电路

5. METHOD FOR ENHANCING CONVERSION EFFICIENCY AT LOW LOAD OF A STEP-DOWN DC-DC SWITCHING CONVERTER AND RELATED CIRCUIT [P] . 美国专利： US2013271098A1 . 2013-10-17

机译：降压型dc-dc开关变换器及其电路的低负载时提高转换效率的方法

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