| 摘要 |
PURPOSE:To reduce the error of an output current, by constituting such circuit that the product of sum and different currents between the output current and the input current of the circuit is equal to the square of the input current and obtaining a square root of the sum of squares. CONSTITUTION:Current sources I2 and 2I2 are constituted with a current mirror circuit 11 consisting of transistors TRs Q5 and Q6. When the input current I2 is applied to a collector input terminal IN2 of the TRQ6, the current I2 is generated in the collector of the TRQ5, and the current 2I2 is flowed to the connection point between emitters of TRs Q5 and Q6. Since the collector of the TRQ5 is connected to an output terminal OUT, a current (I0-I2) is flowed to the collector of a TRQ3, and a current (I0+I2) is flowed to the collector of a TRQ4. |
