| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter controller and an inverter control method which can arbitrarily input a plurality of analog voltages for control parameter setting capable of sharing an AD converter built in a microcomputer from outside of the microcomputer. <P>SOLUTION: An analog voltage generation circuit 6 divides and generates respective analog voltages which have different values each other by changing a combination of resistors for dividing, and inputs the same to an AD converter 4. A transistor 7 is provided for connecting/opening between resistors R1 and R2, which are not connected to a circuit ground, and the circuit ground. A control circuit 3 outputs a digital signal which controls ON/OFF of the transistor 7 from a digital signal output terminal 5 and changes the analog voltage which is input to the AD converter 4 from the analog voltage generation circuit 6. <P>COPYRIGHT: (C)2012,JPO&INPIT |
