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    • 93. 发明申请
    • Trimming circuit and electronic circuit
    • 微调电路和电子电路
    • US20060266646A1
    • 2006-11-30
    • US11403395
    • 2006-04-13
    • Hiroyuki Kimura
    • Hiroyuki Kimura
    • G01N27/26
    • H01C10/14H01C10/06
    • A trimming circuit and an electronic circuit that decreases the resistance of an activated transistor while reducing the number of resistors. The trimming circuit includes a plurality of series-connected units. Units for respectively changing adjusting resistances of Runit/2, Runit/4, Runit/8, and Runit/16 are each formed by a transistor, a series-connected resistor circuit, which has resistance Rt and which is connected in series to the transistor, and a parallel-connected resistor circuit, which has resistance Rm and which is connected to the transistor and the series-connected resistor circuit. The resistances Rm and Rt are determined in each unit such that the difference between the resistance Rm when the transistor is off and the resistance of the entire unit when the transistor is on determines the adjusting resistance.
    • 一种微调电路和电子电路,其减少了激活的晶体管的电阻,同时减少了电阻的数量。 微调电路包括多个串联单元。 用于分别改变Runit / 2,Runit / 4,Runit / 8和Runit / 16的调节电阻的单元各自由具有电阻Rt并串联连接到晶体管的串联电阻电路晶体管形成, 以及并联连接的电阻电路,其具有电阻Rm并连接到晶体管和串联电阻电路。 在每个单元中确定电阻Rm和Rt,使得当晶体管截止时的电阻Rm与晶体管导通时整个单元的电阻之间的差异决定了调整电阻。