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    • 8. 发明专利
    • Load driving circuit and load driving method
    • 负载驱动电路和负载驱动方法
    • JP2009301261A
    • 2009-12-24
    • JP2008153907
    • 2008-06-12
    • Seiko Epson Corpセイコーエプソン株式会社
    • MIYAZAKI SHINICHIYAMAZAKI KATSUNORIYOSHINO HIROYUKIMATSUZAWA KINYAIINO SEIICHI
    • G05F1/56
    • G05F1/56Y10T307/647Y10T307/675Y10T307/68Y10T307/696Y10T307/724Y10T307/729Y10T307/735
    • PROBLEM TO BE SOLVED: To provide technology for driving a load to suppress power consumption regardless of the kind of the load. SOLUTION: This load driving circuit is provided with a plurality of power source parts for generating power with different voltage values and a negative feedback control part for each power source part, and configured to supply the power from the power source parts to a load while performing negative feedback control by inputting a target voltage waveform to each negative feedback control part. Then, one power source part (and negative feedback control part) is selected based on the voltage value to be applied to the load or the voltage value of the target voltage waveform from among the plurality of power source parts (and negative feedback control parts), and connected to the load, and the residual power sources (and negative feedback control parts) are disconnected from the load. Thus, it is possible to drive the load by using the power source part which generates the voltage value close to a drive voltage to be applied to the load, and to suppress power consumption between the power source part and the load. Also, this invention is applicable to any load only by switching the plurality of power source parts. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供用于驱动负载以抑制功率消耗的技术,而不管负载的种类如何。 解决方案:该负载驱动电路设置有用于为每个电源部分产生具有不同电压值的电力的多个电源部件和负反馈控制部件,并且被配置为将来自电源部件的电力提供给 通过向每个负反馈控制部输入目标电压波形来执行负反馈控制。 然后,基于要施加到负载的电压值或来自多个电源部(和负反馈控制部)中的目标电压波形的电压值,选择一个电源部(和负反馈控制部) 并连接到负载,并且剩余电源(和负反馈控制部件)与负载断开连接。 因此,可以通过使用产生接近施加到负载的驱动电压的电压值的电源部来驱动负载,并且抑制电源部分和负载之间的功率消耗。 而且,本发明仅通过切换多个电源部分就可应用于任何负载。 版权所有(C)2010,JPO&INPIT