A Switching Converter with Improved Transient Performance of Variable Frequency Current Mode Control
A switching converter and transient performance technology, applied in the direction of converting DC power input to DC power output, control/regulation system, output power conversion device, etc., can solve problems such as inability to adapt, and achieve the limitation of dynamic response speed , Improve transient response performance, improve the effect of transient response speed
Active Publication Date: 2021-01-29
CHANGZHOU UNIV
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In addition, compared with the traditional voltage-type control, although the current-mode control has better transient performance, it cannot adapt to some occasions with higher requirements.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.
[0015] Such as figure 1 As shown, a switching converter for improving the transient performance of the variable frequency current mode control of the present invention includes a power circuit and a controller for the switching converter. In the figure, outside the dotted line frame is the power circuit, including: input device 1, switch device 2, filter device 3 and output device 4; connection relationship: input device 1 is connected to switch device 2, and then transmitted to filter device 3 after passing through switch device 2 , enters the output device 4 after passing through the filter device 3 . The dotted box is the controller, including: voltage detection device 5, r...
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
Login to View More Abstract
The invention provides a switching converter for improving the transient performance of variable-frequency current type control. The output voltage signal and the reference voltage signal are detected to generate a voltage loop error signal through an active integral voltage outer loop error amplifier, and then the voltage loop error signal and the switch are obtained. The capacitor current of the converter is compared with a comparator to obtain one control signal of the RS flip-flop. The other control signal of the RS flip-flop is provided by a timer with a fixed on-time. By controlling the drive circuit, the power switch tube of the switching converter is controlled. Regulates the output voltage and output current of the switching converter. Its control idea is to use the active integral circuit to replace the passive integral capacitor in the traditional proportional integral (PI) as the voltage outer loop of the variable frequency current control technology, which solves the problem of the dynamic response speed of the traditional linear compensation network to the variable frequency current control technology. limit, thereby improving the transient response speed of the load.
Description
technical field [0001] The invention relates to the technical field of switching power supply equipment, in particular to a switching converter for improving the transient performance of variable frequency current control. Background technique [0002] With the continuous popularization of electronic products, as the power source of various electronic equipment, the power supply is a very important component. The traditional linear power supply can no longer meet the needs of high-performance electronic products, especially the high-tech industries such as communications, microelectronics, and aerospace have higher and higher requirements for power supply technology. It has attracted great attention from academia and engineering circles, and has become one of the most active branches in the field of power electronics. However, as the functions of electronic products become more and more powerful, higher and higher requirements are put forward for the working performance of ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/156
CPCH02M3/156H02M3/1566
Inventor 张希张中伟包伯成王天石
Owner CHANGZHOU UNIV