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发明授权
CN106560758B 电流输出电路 有权

电流输出电路
摘要：
本发明提供一种无论电源电压如何变动，均能稳定地输出电流的电流输出电路。本发明的电流输出电路包括：第1FET，对该第1FET的源极提供电源电压，对该第1FET的栅极提供第1电压，并从该第1FET的漏极输出第1电流；第2FET，对该第2FET的源极提供电源电压，对该第2FET的栅极提供第1电压，并从该第2FET的漏极输出输出电流；第1控制电路，该第1控制电路控制第1电压，使得第1电流成为目标电平；以及第2控制电路，该第2控制电路进行使第1FET的漏极电压与第2FET的漏极电压相等的控制。
摘要（英）：

Provided is a current output circuit that includes: a first FET that has a power supply voltage supplied to a source thereof, that has a first voltage supplied to a gate thereof and that outputs a first current from a drain thereof; a second FET that has the power supply voltage supplied to a source thereof, that has the first voltage supplied to a gate thereof and that outputs an output current from a drain thereof; a first control circuit that controls the first voltage such that the first current comes to be at a target level; and a second control circuit that performs control such that a drain voltage of the first FET and a drain voltage of the second FET are made equal to each other.

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