| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a load protector which protects a control substrate from an overcurrent and is suitable for preventing current supply to a load upon the generation of the overcurrent. <P>SOLUTION: Power supplies 1a, 1b, a motor 2, and the control substrate 6 are connected to a power amplifier substrate 3. The power amplifier substrate 3 is equipped with photo-couplers PC1 to PC3 which output drive signals based on a current command signal from the control substrate 6, and a motor drive circuit 36 which supplies a current from the power supply 1a to the motor 2 based on the drive signal. The control substrate 6 is equipped with a current command output circuit 61 which operates by receiving power from the power amplifier substrate 3. Furthermore, a fuse 34 is provided at a power supply line from a switching regulator 33 to the photo-couplers PC1 to PC3, and a power supply line which is shared by a power supply line to the control substrate 6. <P>COPYRIGHT: (C)2007,JPO&INPIT |
