Bias current generating circuit
一种偏置电流、产生电路的技术,应用在电气元件、电子开关、调节电变量等方向,能够解决不能提供输出电流、影响电子电路或电子系统稳定性等问题,达到提高精度、稳定性能的效果
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[0041] In order to make the purpose, features and effects of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0042] Many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.
[0043] The bias current generation circuit provided by this embodiment, such as figure 2 As shown, it includes a loop unit 100, an output unit 200, an amplification unit 300, a resistance unit 400, a self-bias current unit 500, and a power supply unit ( figure 2 not shown).
[0044] The loop unit 100 includes a first PMOS transistor 101 and a second PMOS transistor 102 constituting a first current mirror structure...
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