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FLOPPY DISK DRIVER CONTROL CIRCUIT AND COMBINATION OF FLOPPY DISK DRIVER AND FLOPPY DISK DRIVER CONTROL CIRCUIT
FLOPPY DISK DRIVER CONTROL CIRCUIT AND COMBINATION OF FLOPPY DISK DRIVER AND FLOPPY DISK DRIVER CONTROL CIRCUIT
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机译:软盘驱动器控制电路以及软盘驱动器和软盘驱动器控制电路的组合
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摘要
PURPOSE: To drive a floppy disk drive with a small drive current and at the same time obtain a compact and inexpensive control circuit by forming the combination of a control part and a stepping motor driver as a single CMOS- type integrated circuit and setting current for driving a stepping motor to a specific range. ;CONSTITUTION: A floppy disk driver control circuit controls a disk driver with a stepping motor 23. Then, it includes a control part 22 for controlling the disk driver and a stepping motor driver 21 for generating drive current for driving the stepping motor 23. A mechanism control circuit 110 and a stepping motor control circuit 112 are provided with a CMOS transistor as a switching transistor. The stepping motor driver 21 generates a drive current of 80mA-250mA when it has a diameter which is practically equal to 15mm.;COPYRIGHT: (C)1996,JPO
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