The present invention provides a circuit device for generating a direct current. Include the current source level, it in an input end is provided with a test current through the input resistance guide, which includes the current source transistor base emitter resistor in parallel with the input path tube, the tube as collector provides an output current source output current of the end. The current mirror stage causes the output current of the current source stage to turn over the working impedance and generates a control voltage in response to the output current at the work impedance. The current group, control input provides the control voltage; there are at least two controlled by the control voltage of the output end; each proportional to the output current of these, the basic current as the test current. The result is to build a current reference that can be used at very low power voltages, around 0.9V. The benchmark is simple and has stable working characteristics, producing a reference current with negative temperature coefficients.
【技术实现步骤摘要】
【技术保护点】
产生直流电流的电路装置包括：一电流源级，在一输入端上备有通过一输入电阻引导的测试电流，包含基极－发射极路径与输入电阻并联的电流源三极管，其集电极作为提供输出电流的电流源级的输出端。电流镜级，使电流源级的输出电流对工作阻抗作镜翻转，在 工作阻抗上产生响应于该输出电流的控制电压。电流器组，有提供控制电压供电的控制输入端；有至少两个同时受控于控制电压的输出端；这些输出端上提供互成比例的电流的输出，其基本的电流作为测试电流。
【技术特征摘要】
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【专利技术属性】
技术研发人员：B迪克，A维彻恩，
申请(专利权)人：皇家菲利浦电子有限公司，
类型：发明
国别省市：NL[荷兰]
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