| 摘要 |
PROBLEM TO BE SOLVED: To attain cost-reduction and high speed responsibility of a driving device with compensation circuit to drive a load such as a monitor. SOLUTION: The driving device comprises a switch part 1 to perform on-off control of voltage to apply to a load 9 such as a monitor from a power source 8, a control part 2 to control the switch part 1 to apply a determined current to the load 9, a current detection part 3 to detect a current flowing through the load 9, a compensation circuit 4 to compensate a detected signal by the detection part 3 to input into the control part 2 responding to a load characteristics and an operational amplifier 6, the compensation circuit 4 has a compensation characteristics responding to a plurality of load characteristics, so that the compensation characteristics to compensate a characteristics of the load 9 is selected by a select switch 5 to be connected to the control part 2. |
