单片并联式半导体桥换能元能量转换 效率影响因素分析
基金项目:
国家自然科学基金（No.22275091,No. 22205112, No.U2341249）。
Analysis of Factors Influencing the Energy Conversion Efficiency of Single Chip Parallel Semiconductor Bridge Transducers
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摘要:为了研究激励能量和桥区结构对半导体桥换能元能量转换效率的影响，设计了两种不同单片并联式桥区结构的半导体桥换能元，并在电容激励条件下进行测试，以评估并联式桥区结构的能量转换效率，进一步得到电压、桥区面积对能量转换效率的影响规律。试验结果表明：在47 μF电容和25~35 V充电电压条件下，双桥区并联结构的能量转换效率略优于三桥区并联结构。在同一电容激励条件下，同一桥区结构半导体桥换能元的能量转换效率随着充电电压的增加而降低；在相同充电电压下，同一桥区结构半导体桥换能元的能量转换效率随着桥区面积的增大而提高。
Abstract:In order to investigate the influence of excitation energy and bridge area structure on the energy conversion efficiency of semiconductor bridge transducers, two types of semiconductor bridge transducers with different single-chip parallel bridge structures were designed, and the tests were carried out under capacitive excitation conditions to evaluate the energy conversion efficiency of the parallel bridge area structure, then the influences of voltage and bridge area on energy conversion efficiency were further revealed. The test results indicate that under the conditions of 47 μF capacitance and 25~35 V charging voltage, the energy conversion efficiency of the dual-bridge area parallel structure is slightly better than that of the triple-bridge area parallel structure. Under the same capacitance excitation condition, the energy conversion efficiency of the semiconductor bridges with same bridge area structure decreases with the increase of charging voltage; Under the same charging voltage condition, the energy conversion efficiency of semiconductor bridges with same bridge area structure increases with the increase of bridge area.
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