Unlock instant, AI-driven research and patent intelligence for your innovation.

Open-loop resonant multi-output voltage-stabilizing DC/DC converter

A multi-channel output, open-loop resonance technology, applied in output power conversion devices, DC power input to DC power output, instruments, etc., can solve problems such as poor stability and complex design, and achieve strong practicability. , flexible design, low switching loss effect

Pending Publication Date: 2022-03-11
上海微波技术研究所(中国电子科技集团公司第五十研究所)
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent document still has the defects of complicated design and poor stability.
[0004] Related content is also disclosed in some existing articles, including: a review of multiple output technologies of DCDC converters ([J]. Journal of Electrotechnical Technology, 2002 (04): 1-4), LLC resonant power supply multiple output feedback circuit The control design of the control design ([J]. Electronic Test, 2019 (15): 132-134), the research and improvement of the cross-regulation rate of the multi-output flyback switching power supply ([D]. Huazhong University of Science and Technology, 2019), Single-Inductor Multi-Output(SIMO)DC-DC Converters With HighLight-Load Efficiency and Minimized Cross-Regulation for Portable Devices(inIEEE Journal of Solid-State Circuits,vol.44,no.4,pp.1099-1111,April 2009) 、An86%Efficiency,Wide-V$_{in}$SIMO DC–DC Converter Embedded in a Car-Radio IC(in IEEE Transactions on Circuits and Systems I:Regular Papers,vol.66,no.9,pp.3598 -3609, Sept.2019), a modular open-loop multi-channel resonant constant current LED drive power supply ([J]. Chinese Journal of Electrical Engineering, 2019, 39(22): 6688-6697), current-mode electric field coupling wireless energy Transmission technology ([J]. Chinese Journal of Electrical Engineering, 2015, 35 (09): 2279-2286), design of impedance transformation network of capacitively coupled wireless power transmission system ([J]. New Technology of Electrical Engineering, 2015, 34( 09):57-63), etc., but the technology recorded in the above article still has the defects of complex design and poor stability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Open-loop resonant multi-output voltage-stabilizing DC/DC converter
  • Open-loop resonant multi-output voltage-stabilizing DC/DC converter
  • Open-loop resonant multi-output voltage-stabilizing DC/DC converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] An open-loop resonant multi-output regulated DC / DC converter provided in this embodiment includes a high-frequency constant current transmitting module and multiple constant current / constant voltage conversion modules, and the output terminal of the high-frequency constant current transmitting module is connected to multiple constant current The input end of the / constant voltage conversion module, the high frequency constant current transmission module is used to convert the constant DC voltage into a constant high frequency AC voltage and generate a high frequency constant current, the constant current / constant voltage conversion module is used to convert the high frequency constant current transmission module. The frequency constant current is converted into multiple high-frequency constant voltages, and the high-frequency constant voltages are rectified into constant DC voltages. The number of constant current / constant voltage conversion modules is the same as the nu...

Embodiment 2

[0048] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0049] Such as figure 1 As shown, the new multi-output regulated DC / DC converter includes:

[0050] A high frequency constant current transmitter module for converting constant DC voltage into constant high frequency AC, I L (t) is the high-frequency constant current generated;

[0051] Multiple constant-current / constant-voltage conversion modules are used to convert the high-frequency constant current generated on the upper-level constant-current bus into multiple high-frequency constant voltages, which are then rectified into constant DC voltages, where I i is the output current of the i-th transformer in the i-th constant current / constant voltage conversion module.

[0052] For the high-frequency constant current transmitting module, firstly, through a full-bridge inverter or a half-bridge inverter (this patent uses a full-bridge inverter as an example), the o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an open-loop resonant multi-output voltage-stabilizing DC / DC converter, which comprises a high-frequency constant-current transmitting module and a plurality of constant-current / constant-voltage conversion modules, and is characterized in that the output end of the high-frequency constant-current transmitting module is connected with the input ends of the plurality of constant-current / constant-voltage conversion modules; the high-frequency constant-current transmitting module is used for converting the constant direct-current voltage into constant high-frequency alternating-current voltage and generating high-frequency constant current; and the constant current / constant voltage conversion module is used for converting the high-frequency constant current generated by the high-frequency constant current transmitting module into multiple paths of high-frequency constant voltages and rectifying the high-frequency constant voltages into constant direct current voltages. According to the multi-output DC / DC converter, the LC resonance principle is utilized, the multi-output DC / DC converter can obtain multi-path stable output voltage, a feedback network does not need to be used, a switch can work in a ZVS state, EMI is low, and switching loss is small.

Description

technical field [0001] The present invention relates to the technical field of power electronics, in particular to an open-loop resonant multi-output stabilized DC / DC converter, especially a novel multi-output DC / DC converter technology. Background technique [0002] Because the multi-output DC / DC converter has the characteristics of large number of output channels, high efficiency and small size, it has a wide range of applications in the fields of communication equipment power supply, such as military radio stations, antenna combiners and other equipment that require multiple outputs A DC / DC converter supplies power to it. However, because the traditional multi-output DC / DC converter only stabilizes one feedback voltage, or adopts weighted control and single-inductance multi-output methods, the design of the feedback network is complicated, which is not good for the stability of the power supply of communication equipment. [0003] The patent document with the publication...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02M3/335H02M1/44
CPCH02M3/33569H02M1/44Y02B70/10
Inventor 吴兆康时子青赵闯高璐洁李秀花
Owner 上海微波技术研究所(中国电子科技集团公司第五十研究所)