A High Voltage Gain Boost Converter
A boost converter, high voltage technology, applied in the direction of conversion equipment without intermediate conversion to AC, etc., can solve the problems of large pulse current value of charging and discharging network, converter efficiency drop, poor effect, etc.
Active Publication Date: 2021-09-10
BEIJING INST OF SPACECRAFT SYST ENG +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the switched capacitor network structure also has certain shortcomings. The realization of the series-parallel charging and discharging process requires a voltage difference in the capacitor network to enable the parallel capacitor circuit to realize charging and discharging between capacitors. Instantaneous realization, resulting in a large pulse current value in the charging and discharging network. At the same time, due to the low impedance value in the charging and discharging circuit, passing through a large current will cause a decrease in the efficiency of the converter.
In addition, because the boost topology has certain limitations in control, the effect of using voltage single closed-loop control is poor.
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
[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0018] Such as figure 1 As shown, the boost converter with high voltage gain of the present invention includes a switch tube S, an input inductor L having the function of filtering energy storage, and also includes a voltage doubler unit and an output capacitor unit, wherein the voltage doubler unit is composed of an inductor Ls, a capacitor C2 is composed of diodes D1, D2, and D3. At the same time, the output end is composed of two capacitors C1, C3 connected in series to form an input capacitor unit. The output end of the voltage doubler unit is also connected to the load R O . One end of the switch S, the anode of the diode D3, and the input terminal of the Ls are connected to the output end of the input inductor L, the other end of the switch tube S is grounded, and the two series output capacitors C1 and C3 are connected in parallel with...
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 high-voltage gain boost converter, which belongs to the technical field of switching power supplies. The present invention includes a filter energy storage unit, a switch unit, a voltage doubler unit and an output capacitor unit, wherein the input end of the filter energy storage unit is connected to the positive pole of the power interface, and the output end of the filter energy storage unit is respectively connected to one end of the switch unit It is connected to the input terminal of the voltage doubler unit, the output terminal of the voltage doubler unit is connected to one end of the output capacitor unit and the positive terminal of the load interface, and the other end of the output capacitor unit, the negative terminal of the load interface and the other end of the switch unit are respectively connected to Negative pole of the power interface. The beneficial effects of the invention are: realizing high voltage gain of the converter.
Description
technical field [0001] The invention relates to a switching power supply structure, in particular to a high voltage gain boost converter. Background technique [0002] Among the existing high-voltage gain topologies, the high-gain DC / DC converter based on switched capacitor network is a relatively common non-isolated topology. , The mode of parallel charging realizes the voltage increase. However, the switched capacitor network structure also has certain shortcomings. The realization of the series-parallel charging and discharging process requires a voltage difference in the capacitor network to enable the parallel capacitor circuit to realize charging and discharging between capacitors. Instantaneous realization leads to a large pulse current value in the charging and discharging network. At the same time, due to the low impedance value in the charging and discharging circuit, passing through a large current will cause a decrease in the efficiency of the converter. In add...
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): H02M3/07
CPCH02M3/07
Inventor 张东来谷雨张晓峰刘治钢刘天成
Owner BEIJING INST OF SPACECRAFT SYST ENG