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Modular Voltage Converter

A voltage converter and converter technology, which is applied in the direction of high-efficiency power electronic conversion, output power conversion devices, electrical components, etc., can solve problems such as low efficiency

Active Publication Date: 2021-11-19
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typically, such DC-DC transformers are most efficient near the resonant frequency and are inefficient at other frequencies

Method used

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  • Modular Voltage Converter
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Examples

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Embodiment Construction

[0033] Some examples of DC-DC resonant converters are presented below to provide various output voltages while operating in frequency ranges that provide high efficiency (eg, at or near the resonant frequency). Individually and uniformly configurable modular devices allow selection of the output voltage from the output voltage range available for a specific input voltage without modifying the AC frequency or duty cycle input to the resonant device, maintaining high efficiency across the output voltage range . Different voltage conversion ratios support various input voltages without changing the frequency or duty cycle.

[0034] Figure 2A An example of a configurable module or unit is shown, module 200 . The modules 200 can be used individually to provide different output voltages in different configurations. The AC input voltage Vin is provided to the primary winding 202a of a transformer 202 (eg, a high frequency transformer). For example, as shown in FIG. 1, Vin may be...

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Abstract

The DC-DC voltage converter includes a first voltage converter module for generating a first output at a first output voltage selected from two or more different voltages; a second voltage converter module for generating a first output at two different voltages; A second output is generated at a second output voltage selected from one or more than two different voltages. The first voltage converter module and the second voltage converter module have a common input terminal. The common output terminal combines the first output voltage of the first voltage converter module and the second output voltage of the second voltage converter module.

Description

technical field [0001] The present application relates generally to the field of DC-DC converters, and more particularly to a resonant converter. Background technique [0002] A resonant converter is a DC-DC power converter consisting of a network of inductors and capacitors tuned to resonance at a specific frequency. Resonant converters need to handle multiple input voltages and multiple output voltages. [0003] FIG. 1 is an example of an inductor-inductor-capacitor (LLC for short) resonant DC-DC converter 100 in the prior art. A direct current (DC) input voltage Vin is provided to a switching network 102 (comprising switches Q1, Q2, Q3, and Q4), which provides a switching output, such as an AC ( alternating current, AC) output. These inductors and capacitors connected to the primary side of the transformer 104 have a ratio of m:n to the transformer (ie, the ratio of the number of primary windings to the number of secondary windings, also called the winding ratio, is m:...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/088
CPCH02M3/33561H02M3/33523H02M7/49H02M7/483Y02B70/10H02M3/33573H02M3/01H02M3/33576H02M1/0058H02M1/0074H02M1/0077
Inventor 戴和平毛小林傅电波
Owner HUAWEI DIGITAL POWER TECH CO LTD