发明授权
US09270175B2 Driving device, light-emitting device, projection device and control method
有权
驱动装置，发光装置，投影装置及控制方法
- 专利标题： Driving device, light-emitting device, projection device and control method
- 专利标题（中）： 驱动装置，发光装置，投影装置及控制方法
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申请号： US14472231申请日： 2014-08-28
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公开(公告)号： US09270175B2公开(公告)日： 2016-02-23
- 发明人: Hideo Hamanaka
- 申请人： CASIO COMPUTER CO., LTD.
- 申请人地址： JP Tokyo
- 专利权人： CASIO COMPUTER CO., LTD.
- 当前专利权人： CASIO COMPUTER CO., LTD.
- 当前专利权人地址： JP Tokyo
- 代理机构： Chen Yoshimura LLP
- 优先权： JP2013-178916 20130830
- 主分类号： H02M3/158
- IPC分类号： H02M3/158 ; H05B33/08 ; H02M1/32
摘要：
A driving device is provided with: a power circuit in which it is possible to modify an output current value of an output terminal configured to have a load connected thereto; an output capacitor connected between the output terminal of the power circuit and a reference potential node; a switching element connected between the output terminal of the power circuit and the reference potential node; and a control unit that controls the output current value of the power circuit.The control unit turns the switching element ON and OFF and controls the output current value of the power circuit during a period in which the switching element is ON such that the voltage of the output terminal of the power circuit during this period is equal to or lower than the voltage applied to the load during a period when this load is OFF.
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