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高功率，双桥芯片L293, L293E 和L298N如何简化
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2009-05-31
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In addition to simplifying design problems, a family of dedicatedchips improves stepper-motor drive-circuit reliability by significantly reducing the component count.
The L293, L293E and L298N dual-bridge ICs (see box, ”inside the dual-bridge ICs”) significantly reduce the problems encountered in the design of stepper-
motor drive circuitry. They can, for example,simplify the design and increase the efficiency of constant-current choppers. And with a single chip replacing the transistors and predriver stages, circuit performance improves. Best of all, the devices have applications in complex as well as basic driver networks.
The L293, L293E and L298N dual-bridge ICs (see box, ”inside the dual-bridge ICs”) significantly reduce the problems encountered in the design of stepper-
motor drive circuitry. They can, for example,simplify the design and increase the efficiency of constant-current choppers. And with a single chip replacing the transistors and predriver stages, circuit performance improves. Best of all, the devices have applications in complex as well as basic driver networks.
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