驱动电路

An 89C2051 microprocessor was used to realize the phase order conversion of the step motor so that the Loop allotter circuit is easy and flexible. The VMOS is adopted as power elements of the design.

该步进电机驱动电路选择硬件环形分配，选择89C2051作为环形分配器，这种环行分配电路具有电路简单，可靠性高，柔性好的特点。

One of the driving circuit switching power supply, buffer circuit, the main control circuit and magnetic components to optimize the design.

其中，对开关电源的驱动电路、缓冲电路、控制电路及主要磁元件进行优化、设计。

Secondly, the driver circuit, the control circuit, magnetic component of the power supply are designed and optimized.

其次，对开关电源的驱动电路、缓冲电路、控制电路及主要磁元件进行优化、设计。

The circuit system introduced in this paper has generated the expectative drive waveform successfully and drives the target PDP displaying.

基于本文综合技术设计制作，采用课题组开发的PDP行列驱动芯片的驱动电路系统，成功实现PDP驱动波形产生和系统点屏测试。

In the voltage doubling rectifying circuit, the high voltage has been realized by the positive and negative way, and the voltage between the cathode and anode could reach 1700 V. In the fly-back switching high-voltage power supply, considering the requirements of each unit of the driving circuits on the power supply, the three-group voltage outputs including low-voltage outputs have been realized: 1600V/20mA,12V/500mA, 5V/50mA, in which UC3842 has been used to achieve pulse width modulation.

在倍压整流电路设计中，采用正、负电压方式实现高压，有效降低了阴阳极间所需的高压，最终两极间可产生1700V电压；在反激式开关电源电路设计中，利用UC3842芯片实现PWM调制，考虑到驱动电路各单元对电源的需求，设计了包括低压电源在内的三组电源输出：1600V/20mA，12V/500mA，5V/50mA。

The gyroscope is the key device for stabilizing, scanning and tracking in the seeker. The work mechanism of the gyroscope in the seeker is illustrated detailedly through analyzing the PL-2 missile seeker"s structure. The gyroscope electric circuit, including the gyroscope"s driver circuit, the gyro shaft position detecting circuit and the gyroscope"s precessional circuit, was designed according to the gyroscope"s work mechanism.

陀螺是仿真导引头中稳定、搜索和跟踪的关键部件，论文从分析PL-2导弹红外点源导引头的结构和特点出发，对其中的稳定陀螺工作机理进行了详细的研究，并根据陀螺的工作机理，自行研制了一套陀螺电路，包括陀螺驱动电路、陀螺轴位置检测电路和陀螺进动电路，并得到了实验验证，效果良好。

This control system includes main control model, current detection, position sensing, fault detection and protection, serial interface. Anisomerous bridge topology structure is adopted to design the power converters and driver circuit. Double closed loop based on velocity and current is adopted to control AC-motor.

其控制电路主要包括主控模块、电流检测模块、位置传感器模块、串口电路、故障检测和保护电路等；采用不对称桥式扑结构设计了功率变换器及其驱动电路模块；采用速度和电流双闭环的形式，完成对交流电机的控制。

Designing o f t he p ower c ircuit, c ontrol circuit, d riving c ircuit a nd protect circuit is discussed in this paper.

文中对所提出的电源的主电路、控制电路、驱动电路和保护电路进行了研究和设计。

When we design the IPM circuit ,we should design such main sections:the driving circuit , the buffer and absorption circuit , the protection circuit.

IPM电路设计主要包括驱动电路部分、缓冲吸收电路部分以及保护电路部分。

Also, we select the signal collecting circuit of three output polars, the coupling circuit using capacitance and resistance, the alternating amplify processing circuit, the positive feedback retardation comparsion, the driving circuit of output current and the stabilization voltage supply circuit.

选择了InSb磁阻三端输出型信号采集电路，阻容耦合型交流放大电路，正反馈迟滞型电压比较器和大电流推挽驱动电路及稳压电源电路。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。