Circuit used for driving single-path or multi-path capacitive load

• Main Authors: HAN JIAN, JIANG HAIBO, SUN CHIPING, WU JIANQUN
• Format: Patent
• Language: Chinese; English
• Published: 03.03.2010
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

The invention relates to a circuit for driving a single-path or multi-path capacitive load, which comprises a direct current power supply, a switching element topological structure, an inductor and a control unit. The switching element topological structure comprises first and second switching elements and nodes connected with the output ends of the first and second switching elements, wherein the input ends of the first and second switching elements are connected with two ends of the direct current power supply respectively; the control unit outputs a control signal to the control ends of the first and second switching elements respectively to turn on the first and second switching elements alternately; a direct current voltage output by the direct current power supply is output to serve as a one-way pulse voltage at the nodes; and one end of the inductor is connected with the nodes, the other end of the inductor is connected with the capacitive load, the other end of the capacitive load is connected with th