Phase error controlled reversed polarity high-gain voltage boosting Boost conversion circuit
A technology of conversion circuit and polarity conversion, applied in the direction of conversion equipment without intermediate conversion to AC, to achieve the effect of improving voltage gain, small harmonic output, and avoiding limit duty cycle
Active Publication Date: 2015-08-26
ANHUI UNIV OF SCI & TECH
View PDF4 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The traditional Boost conversion circuit topology is affected by parasitic parameters and has encountered the limit of voltage gain adjustment
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
[0019] The reverse polarity high-gain step-up boost conversion circuit of the present invention is further described in conjunction with the accompanying drawings and specific embodiments:
[0020] Such as figure 1 As shown, the anti-polarity high-gain boost boost conversion circuit of the present invention includes a boost module 1 , a polarity conversion module 2 and a filter output module 3 connected to each other. Such as figure 2 As shown, the boost module 1 includes a first switching tube Q 1 , the second switching tube Q 2 , the first inductance L 1 , the second inductance L 2 , the first diode D 1 , the first capacitance C 1 and the third diode D 3 . The polarity conversion module 2 includes a first capacitor C 1 , the second diode D 2 , the second switching tube Q 2 with the fourth diode D 4 . The filter output module 3 includes a second capacitor C 2 , the third capacitor C 3 , the second diode D 2 , the fourth diode D 4 , the third inductance L 3 ...
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 phase error controlled reversed polarity high-gain voltage boosting Boost conversion circuit comprising a voltage boosting module, a polarity conversion module and a filtering output module which are interconnected. The voltage boosting module comprises a first switching tube, a second switching tube, a first inductor, a second inductor, a first diode, a first capacitor and a third diode. The polarity conversion module comprises the first capacitor, a second diode, the second switching tube and a fourth diode. The filtering output module comprises a second capacitor, a third capacitor, the second diode, the fourth diode, a third inductor and a load. Advantages of the phase error controlled reversed polarity high-gain voltage boosting Boost conversion circuit are that negative polarity output current / voltage can be provided to the load to realize 0-10 times of voltage fluctuation ratio, and output voltage is stable and harmonic output is low so that voltage gain is enhanced, a situation that a switching device works at the limit duty ratio can be avoided, and thus a problem of voltage gain adjustment limit of a conventional Boost circuit topology due to influence of parasitic parameters can be solved.
Description
Technical field: [0001] The invention relates to the technical field of power electronic circuits, in particular to a low-cost, high-gain, high-efficiency phase-staggered control reverse polarity high-gain step-up Boost conversion circuit suitable for wide input power supply systems. Background technique: [0002] In order to improve the efficiency of the Boost converter and reduce the cost, under the condition of no mandatory electrical isolation, the non-isolated Boost converter saves the heavy high-frequency transformer, reduces the number of power conversions, and has the advantages of small size and high efficiency. , low cost and many other advantages. However, the equivalent series resistance in the traditional Boost conversion circuit limits the improvement of the voltage gain of the converter, and the maximum value of the voltage gain is about 3 to 5 times. When the duty cycle D is too large, the inductor current ripple increases, and a larger inductor is required ...
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 Applications(China)
IPC IPC(8): H02M3/07
Inventor 祝龙记姜媛媛于水娟
Owner ANHUI UNIV OF SCI & TECH