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

Minimizing body diode conduction in synchronous converters

A body diode and converter technology, applied in the field of synchronous converters, can solve problems such as power loss of switching converters

Active Publication Date: 2019-06-25
模拟设备国际无限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Dead Time Causes Power Loss and EMI Problems in Switching Converters
Therefore, minimizing this dead time while avoiding shoot-through currents has been an ongoing problem for which no effective solution has been provided

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
  • Minimizing body diode conduction in synchronous converters
  • Minimizing body diode conduction in synchronous converters
  • Minimizing body diode conduction in synchronous converters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Illustrative embodiments are now described. Other embodiments may additionally or alternatively be used. Details that may be obvious or unnecessary may be omitted to save space or for a more efficient presentation. Some embodiments may be practiced with additional components or steps and / or not all components or steps described.

[0021] Figure 1A An example of a synchronous boost converter power stage is shown. Figure 1A The synchronous boost converter shown in can generate a ratio input voltage (V IN ) Higher output voltage (V OUT ).

[0022] When S E Gate controller 107 turns on the excitation switch (S E ) 105, the inductor 101 (I L ) may increase in current. Then, S E Gate controller 107 can shut down S E 105 to make I L Raise the switch node voltage (V SW ), until I L flow past the excitation switch (S D ) 111 body diode 109. At this time, S D The gate controller 113 can turn on S by flowing IL through its enhanced channel D 111 to reduce condu...

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 discloses a synchronous converter that includes a power source, an inductor, an output terminal, and a control circuit. The control circuit may include an electronic energizing switch that, when activated, delivers energy from the power source to the inductor; an electronic de-energizing switch that, when activated, delivers energy from the inductor to the output terminal, the electronic de-energizing switch including a body diode; and an electronic pull-down switch that, when activated, turns off the electronic de-energizing switch, redirects current flowing though the body diode of the electronic de-energizing switch, and removes charge from the body diode of the electronic de-energizing switch. The electronic energizing switch and the electronic de-energizing switch may never both be activated at the same time.

Description

technical field [0001] The present disclosure relates to synchronous converters, including synchronous boost converters, synchronous buck-boost converters, and synchronous H-bridge converters. Background technique [0002] Synchronous converters, such as synchronous boost converters, synchronous buck-boost converters, and synchronous H-bridge converters, can use controlled excitation switches to deliver controlled amounts of energy to the inductor and controlled power-off switches to transfer. A controlled amount of energy from an inductor into a load through an output terminal. [0003] Both switches may never be on at the same time to avoid unregulated shoot-through current from the output of the converter through both switches to ground. Therefore, there may be two transition durations during each switching cycle during which both switches are off. These durations are called dead times in switching converters. [0004] Dead time causes power loss and EMI problems in s...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158
CPCH02M1/38H02M3/1588H02P6/085Y02B70/10H02M3/1582H02P7/29H02M1/0003H02M1/0051H02M1/385
Inventor 权东远约书亚·威廉·考德威尔
Owner 模拟设备国际无限公司