| 摘要 |
PURPOSE:To set the optimum discharge current automatically according to the atmospheric pressure. CONSTITUTION:At a place with an altitude of 2000m or less, an ideal diode circuit 10 is in Off state, and therefore, an adding circuit 13 summarizes the output signal from a regular rotation amplifying circuit 15 and the reference current signal Is to prepare a current signal Sb. As a result, the current signal Sb is obtained according to the formula Sb=alpha.Sa+Is. Exceeding 2000m, on the other hand, the ideal diode circuit 10 is put in On state, and a signal feeling beta.Sa is emitted from the output end of a reverse rotation amplifying circuit 12, which results in emission of a current signal Sb by the adding circuit 13 in conformity to the formula Sb=alpha.Sa+beta.Sa+Is=(alpha+beta)Sa+Is, and the incremental gradient will enlarge. |
