request-send circuit

With the development of PIC ( Power Integrate Circuit), we request more for the performance of Power Devices.

随着现代功率集成电路的发展，对功率器件的性能提出了更高要求。

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According to the concrete request of the test pump, this close test circuit project of the high pressure pump platform is made out.

根据被试泵的具体要求，制定了高压泵实验台的闭式实验回路方案。

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According to the movement request of the cylinder, the paper has in-depth researched to the pressure control, the synchronization control, the locking, the keeping pressure and the speed control sub-circuit of the hydraulic system, and drawn up the hydraulic system schematic diagram.

液压传动是打码切头机的动力源，根据油缸的动作要求，对液压系统的压力控制、同步控制、锁紧、保压及调速等子回路进行了深入的研究，并拟定了液压系统原理图。

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PFW was added based on PWM, and switching circuit between PWM, PFW and control circuit of external characteristic were designed, the control system fulfilled the higher request, and have double excellence of PWM and PFM.

在PWM控制的基础上引入PFM控制，并设计出PFM与PWM的切换电路及外特性控制电路，实现了设计的控制要求，使整个控制系统具有PWM和PFM的双重优点。

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ASM realizes the different request monolithic integrated circuIt'system initialization.

ASM实现不同要求的单片机系统初始化.

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Aiming at the request of ultrasonic atomization, the main circuit thesis analysis and converter circuit has been designed.

针对超声波雾化对超声波电源的具体要求，提出了电源主电路方案和功率变换器主电路基本结构。

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