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Boost converter with reduced switching losses

A boost converter and boost conversion technology, applied in the direction of output power conversion devices, high-efficiency power electronic conversion, instruments, etc., can solve the problems of applying stress and reducing efficiency

Active Publication Date: 2018-01-12
沃孚半导体公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such conventional boost converters may suffer from reduced efficiency due to excessive switching losses and / or may stress transistors and other components of the circuit

Method used

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  • Boost converter with reduced switching losses
  • Boost converter with reduced switching losses
  • Boost converter with reduced switching losses

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Embodiment Construction

[0020] Embodiments of the inventive subject matter will now be described more fully hereinafter with reference to the accompanying drawings in which embodiments of the inventive subject matter are shown. However, the inventive subject matter may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive subject matter to those skilled in the art. Like numbers refer to like elements throughout the drawings.

[0021] It will be understood that, although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without de...

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PUM

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Abstract

An apparatus such as a boost converter includes a first switch configured to couple to an inductor and support a charging current in the inductor from a power source, and coupled in parallel with the first switch and configured to selectively divert current from the inductor to At least two series-coupled second switches routed to at least two series-connected capacitors. The apparatus may also include a control circuit configured to operate the first switch and the plurality of second switches.

Description

technical field [0001] The subject matter of the present invention relates to power conversion apparatus and methods, and more particularly to boost converter circuits and methods of operation thereof. Background technique [0002] Boost converters are used in a variety of applications, such as for motor drives and for interfacing with solar and wind power generators. Many of these applications require boosting the input voltage to a much higher voltage. For example, solar applications may require boosting the relatively low voltage produced by the solar strings to the much higher voltage required by an inverter coupled to the power grid. [0003] Various converter configurations have been developed to provide this high level boost. These converter arrangements include cascaded boost circuits comprising multiple boost stages and coupled inductor, interleaved and multi-level boost converter arrangements. Such conventional boost converters may suffer from reduced efficiency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/40H02M3/156H02M3/158
CPCH02M3/1588H02M7/25H02M3/158Y02B70/10H02M1/0054
Inventor B·K·阿格拉瓦尔N·R·博米瑞迪
Owner 沃孚半导体公司