发明名称
摘要 There is provided a drive device capable of driving a capacitive load with efficiency and with low power consumption while keeping quality input reproducibility for output signal. A switching drive circuit 10f repeatedly performs operations in the order of VCP charging phase PH_VCP_CH, VCP discharging phrase PH_VCP_dCH, VCN charging phase PH_VCN_CH, and VCN discharging phase PH_VCN_dCH. A drive circuit 10 allows a charging phase per cycle for an input signal VIN that is a reference for operation to be either a phase in which the slope of the input signal VIN is positive from a reference voltage REFL or greater until a maximum voltage, or a phase in which the slope of the input signal VIN is negative from a reference voltage REFH or less until a minimum voltage.
申请公布号 JP5033244(B2) 申请公布日期 2012.09.26
申请号 JP20100536252 申请日期 2010.07.16
申请人 发明人
分类号 H03K17/687;H03F3/217 主分类号 H03K17/687
代理机构 代理人
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