DC to AC conversion circuit
A conversion circuit, DC-AC technology, applied in the direction of AC power input conversion to DC power output, high-efficiency power electronic conversion, output power conversion device, etc., can solve the problems of LCL filter circuit characteristic parameters, cumbersome design process, etc. , to achieve the effect of overcoming potential barrier avoidance, reducing complexity, and low ripple output voltage
Active Publication Date: 2016-07-06
IND TECH RES INST
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Although the effect of the LCL filter to filter out high-order harmonics is obvious, the design process is cumbersome and requires multiple attempts to find the appropriate parameters, and the circuit characteristics of the LCL filter are easily affected by the parameters.
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
[0043] In the various embodiments listed below, the same or similar elements will be represented by the same reference numerals.
[0044] Please refer to figure 1 As shown, it is a block diagram of the DC-AC conversion circuit of the first embodiment of the present invention. The DC-to-AC conversion circuit 100 of the present invention is suitable for coupling a load 180 to provide a working voltage required by the load 180, wherein the load 180 can be a resistor, an inductor, or a power supply.
[0045] The DC-AC conversion circuit 100 of this embodiment includes an inverter 110 , a first inductor L1 , a first capacitor C1 , a second capacitor C2 and a second inductor L2 . The inverter 110 has two input contacts 111 , 112 and two output contacts 113 , 114 . Wherein, the two input contacts 111 and 112 of the inverter 110 are, for example, coupled to a DC input source 170 for receiving the DC signal generated by the DC input source 170, and the inverter 110 processes the afor...
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
A DC-AC conversion circuit includes an inverter, a first inductor, a first capacitor, a second capacitor and a second inductor. The inverter has two input contacts and two output contacts, the two input contacts are used for receiving DC signals, and the two output contacts are used for outputting AC signals. A first end of the first inductor is coupled to one of the two output contacts of the inverter. The first capacitor is coupled to the first inductor in parallel. The first end of the second capacitor is coupled to the second end of the first inductor, and the second end of the second capacitor is coupled to the other of the two output contacts of the inverter. The first end of the second inductor is coupled to the first end of the second capacitor, and the second end of the second inductor is coupled to the load.
Description
technical field [0001] A conversion circuit, in particular to a DC-AC conversion circuit. Background technique [0002] Generally speaking, some DC-AC conversion circuits are equipped with inverters, and most of them use high-frequency switching to generate pulse width modulation (PulseWidthModulation, PWM) signals, which will lead to a large number of high-order harmonic currents , and interfere with the back-end circuit or equipment, causing problems in the back-end circuit or equipment. Therefore, in the DC-AC conversion circuit, the selection and design of the filter connected to the AC output terminal of the inverter will become very important. [0003] In the case of the same inductance value, compared with the traditional L-type filter, the LCL-type filter is more ideal for high-order harmonic suppression, and has been gradually applied to high-power, low-switching frequency inverters superior. [0004] Most LCL filters adopt the concept of signal processing and th...
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): H02M7/48
CPCH02M7/5387H02M1/0058H02M7/4815Y02B70/10
Inventor 陈伯彦潘晴财林保全杨明哲
Owner IND TECH RES INST