| 摘要 |
PURPOSE:To extend the working voltage range of a voltage division circuit by connecting the power source terminal of a 1st voltage follower circuit between the positive electrode of a DC power source and an output from a 2nd voltage follower circuit and further connecting the power source terminal of the 2nd voltage follower circuit between an output from the 1st voltage follower circuit and the negative electrode of the DC power source. CONSTITUTION:Where the power source voltage of the 1st voltage follower circuit and that of the 2nd voltage follower circuit are E1 and E2, respectively, they come to 2/3E with resistance R1=R2=R3=R given. Hence a DC power source voltage more than the maximum absolute rated voltage of the voltage follower circuit (if R1=R2=R3=R holds, it is 1.5 times the maximum absolute rated voltage) can be divided by three. Since the electric loss of the voltage follower circuit, which is caused by the imbalance of a connected load, is distributed to the 1st and 2nd voltage follower circuits, the electric loss of each voltage follower circuit can be reduced. |
