電流制限回路および内視鏡装置
- 专利权人:
- オリンパス株式会社
- 发明人:
- 重久 理行
- 申请号：
- JP2007137681
- 公开号：
- JP5044287B2
- 申请日:
- 2007.05.24
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a current-limiting circuit capable of increasing a current in a usual operation, and to provide an endoscope.
SOLUTION: A resistor 14 detects a load current amount to be output to a poststage circuit. A transistor 15 generates a control voltage corresponding to a difference in voltage between both ends of the resistor 14. An FET 13 limits the load current amount in accordance with the control voltage. The control voltage to be applied to a gate terminal G of the FET 13 is output to a CPU 12 as a state detection signal for detecting the state of a load current Il (ON/OFF of a current limit operation).
COPYRIGHT: (C)2009,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
