公开(公告)号：US4349777A

公开(公告)日：1982-09-14

申请号：US204929

申请日：1980-11-07

Applicant: Masakazu Mitamura

Inventor： Masakazu Mitamura

IPC: G01R1/28 ,  G05F1/56 ,  H03M1/00 ,  G01R27/14 ,  G05F1/58 ,  G05F1/613

CPC classification number: G05F1/561 ,  H03M1/00 ,  H03M2201/02 ,  H03M2201/14 ,  H03M2201/3115 ,  H03M2201/3131 ,  H03M2201/3168 ,  H03M2201/4135 ,  H03M2201/4225 ,  H03M2201/4233 ,  H03M2201/4266 ,  H03M2201/60 ,  H03M2201/6121 ,  H03M2201/814

Abstract: A plurality of metal resistance elements and a metal resistance element for compensation use are formed on a common substrate and placed under the same temperature condition. A reference current is applied to the metal resistance element for compensation use to yield an auxiliary reference voltage. A plurality of switches are individually connected in series to the reference metal resistance elements and the auxiliary reference voltage is provided to the series circuits to selectively control the switches, thereby obtaining various currents.

Abstract translation: 在公共基板上形成多个金属电阻元件和用于补偿的金属电阻元件，并置于相同的温度条件下。 将参考电流施加到用于补偿使用的金属电阻元件以产生辅助参考电压。 多个开关分别与参考金属电阻元件串联连接，并且辅助参考电压被提供给串联电路以选择性地控制开关，从而获得各种电流。