| 摘要 |
A current source with active common mode rejection uses a principle of having a branch for the generation of the required current, to the output (107) of which one end of the load (3) is connected; and a branch of the active compensation circuit (ACC) (200), to the output (203) of which the other end of the load (3) is connected. By means of at least one input (201) of the ACC (200), at least one signal is sensed on the load, and subsequently it is processed so that the result of processing of at least one signal from at least one input (201) preferentially represents the common mode voltage, which corresponds to the pair of voltages at the voltage terminals (1) and (2) of the load (3), or voltage close to the common mode voltage. This result is subsequently processed by the regulating circuits of the ACC (200), which compare it to the reference potential value (4), and using the negative feedback principle, set such voltage on the output (203), which, within the control accuracy, leads to the equivalence of the reference potential (4) and the potential corresponding to the result of processing of at least one signal from at least one input (201).
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