Boost DC-DC converter with continuous input and output current

A DC-DC, input and output technology, applied in the direction of output power conversion device, DC power input conversion to DC power output, adjustment of electrical variables, etc., can solve problems such as unsatisfactory, achieve continuous input and output current, high efficiency , polarity consistent effect

Pending Publication Date: 2019-02-26
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the shortcomings that the existing basic DC-DC converters with a boost function do not meet the requirements of "continuous input and output currents and the same polarity of input and o

Method used

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  • Boost DC-DC converter with continuous input and output current
  • Boost DC-DC converter with continuous input and output current
  • Boost DC-DC converter with continuous input and output current

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] refer to figure 1 with figure 2 , a step-up DC-DC converter with continuous input and output currents, comprising a diode D1, a capacitor C1, an inductor L1, an inductor L2, a capacitor Co and an electronic switch, the electronic switch has a port a and a port b, The anode of the diode D1 is connected to the positive end of the DC power supply Vi and the port a of the electronic switch at the same time, the cathode of the diode D1 is connected to one end of the capacitor C1 and one end of the inductor L1 at the same time, and the port b of the electronic switch is connected to the other end of the capacitor C1 and One end of the inductor L2 is connected, the other end of the inductor L1 is connected to one end of the capacitor Co and one end of the load Z at the same time, and the other end of the load Z is connected to the other end of the capacitor Co, the o...

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Abstract

A boost DC-DC converter with continuous input and output currents includes a diode D1, a capacitor C1, an inductor L1, an inductor L2, a capacitor Co and one electronic switch, the electronic switch has a port a and a port b, the anode of the diode D1 is simultaneously connected to the positive terminal of a DC power supply Vi and to the port a of the electronic switch, the cathode of the diode D1is connected to one end of the capacitor C1 and one end of the inductor L1 at the same time, the port b of the electronic switch is simultaneously connected to the other end of the capacitor C1 and one end of the inductor L2, the other end of the inductor L1 is simultaneously connected to one end of the capacitor Co and one end of a load Z, and the other end of the load Z is simultaneously connected to the other end of the capacitor Co, the other end of the inductor L2 and the negative end of the DC power supply Vi. The boost DC-DC converter is characterized in that the input and output currents are continuous, the output voltage is greater than or equal to the DC power supply voltage, and the output voltage is of the same polarity.

Description

technical field [0001] The invention relates to a direct current-direct current (DC-DC) converter, especially a step-up DC-DC converter with continuous input and output currents and the same polarity of input and output voltages, which can be used as a basic unit to form multi-input and Multi-output DC power system, such as: DC power module parallel system, LED array drive system, distributed photovoltaic power generation system, etc. Background technique [0002] The existing basic DC-DC converters with boost function include Boost converter, Buck-Boost converter, Cuk converter, Sepic converter and Zeta converter. As listed in Table 1, without considering the output capacitor, none of the above five basic DC-DC converters with a step-up function satisfies the requirement of "both input and output currents are continuous and input and output voltages have the same polarity". Require. [0003] [0004] Table 1. Contents of the invention [0005] In order to overcome t...

Claims

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Application Information

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IPC IPC(8): H02M3/155
CPCH02M3/155
Inventor 陈怡
Owner ZHEJIANG UNIV OF TECH
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